/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/mcr/example_7.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 03:38:37,830 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 03:38:37,833 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 03:38:37,870 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-05 03:38:37,927 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 03:38:37,927 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 03:38:37,928 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 03:38:37,932 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-06-05 03:38:37,962 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 03:38:37,963 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 03:38:37,963 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 03:38:37,963 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 03:38:37,966 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 03:38:37,966 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 03:38:37,966 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 03:38:37,966 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 03:38:37,967 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 03:38:37,967 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 03:38:37,968 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 03:38:37,968 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 03:38:37,968 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 03:38:37,968 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 03:38:37,968 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 03:38:37,968 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 03:38:37,968 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 03:38:37,968 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 03:38:37,969 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 03:38:37,969 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 03:38:37,969 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 03:38:37,969 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 03:38:37,969 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 03:38:37,969 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 03:38:37,969 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 03:38:37,970 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 03:38:37,970 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 03:38:37,970 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 03:38:37,970 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 03:38:37,970 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 03:38:37,970 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 03:38:37,970 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 03:38:38,296 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 03:38:38,313 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 03:38:38,315 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 03:38:38,316 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-05 03:38:38,317 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-05 03:38:38,318 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_7.bpl [2021-06-05 03:38:38,318 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_7.bpl' [2021-06-05 03:38:38,351 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 03:38:38,352 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-05 03:38:38,353 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 03:38:38,354 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 03:38:38,354 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 03:38:38,363 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:38:38" (1/1) ... [2021-06-05 03:38:38,368 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:38:38" (1/1) ... [2021-06-05 03:38:38,375 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 03:38:38,377 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 03:38:38,377 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 03:38:38,377 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 03:38:38,382 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:38:38" (1/1) ... [2021-06-05 03:38:38,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:38:38" (1/1) ... [2021-06-05 03:38:38,383 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:38:38" (1/1) ... [2021-06-05 03:38:38,383 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:38:38" (1/1) ... [2021-06-05 03:38:38,385 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:38:38" (1/1) ... [2021-06-05 03:38:38,386 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:38:38" (1/1) ... [2021-06-05 03:38:38,386 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:38:38" (1/1) ... [2021-06-05 03:38:38,387 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 03:38:38,387 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 03:38:38,388 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 03:38:38,388 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 03:38:38,390 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:38:38" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 03:38:38,444 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2021-06-05 03:38:38,444 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2021-06-05 03:38:38,444 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2021-06-05 03:38:38,444 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2021-06-05 03:38:38,445 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2021-06-05 03:38:38,445 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2021-06-05 03:38:38,445 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration [2021-06-05 03:38:38,445 INFO L130 BoogieDeclarations]: Found specification of procedure set_3 [2021-06-05 03:38:38,445 INFO L138 BoogieDeclarations]: Found implementation of procedure set_3 [2021-06-05 03:38:38,445 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_4 given in one single declaration [2021-06-05 03:38:38,445 INFO L130 BoogieDeclarations]: Found specification of procedure set_4 [2021-06-05 03:38:38,446 INFO L138 BoogieDeclarations]: Found implementation of procedure set_4 [2021-06-05 03:38:38,446 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2021-06-05 03:38:38,446 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2021-06-05 03:38:38,446 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2021-06-05 03:38:38,446 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-05 03:38:38,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 03:38:38,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 03:38:38,446 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_5 given in one single declaration [2021-06-05 03:38:38,447 INFO L130 BoogieDeclarations]: Found specification of procedure set_5 [2021-06-05 03:38:38,447 INFO L138 BoogieDeclarations]: Found implementation of procedure set_5 [2021-06-05 03:38:38,447 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_6 given in one single declaration [2021-06-05 03:38:38,447 INFO L130 BoogieDeclarations]: Found specification of procedure set_6 [2021-06-05 03:38:38,447 INFO L138 BoogieDeclarations]: Found implementation of procedure set_6 [2021-06-05 03:38:38,448 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 03:38:38,597 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 03:38:38,598 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-05 03:38:38,599 INFO L202 PluginConnector]: Adding new model example_7.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 03:38:38 BoogieIcfgContainer [2021-06-05 03:38:38,599 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 03:38:38,600 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 03:38:38,600 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 03:38:38,603 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 03:38:38,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 03:38:38" (1/2) ... [2021-06-05 03:38:38,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@144a7afa and model type example_7.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 03:38:38, skipping insertion in model container [2021-06-05 03:38:38,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_7.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 03:38:38" (2/2) ... [2021-06-05 03:38:38,605 INFO L111 eAbstractionObserver]: Analyzing ICFG example_7.bpl [2021-06-05 03:38:38,610 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 03:38:38,610 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 03:38:38,610 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 03:38:38,611 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 03:38:38,763 INFO L149 ThreadInstanceAdder]: Constructed 49 joinOtherThreadTransitions. [2021-06-05 03:38:38,797 INFO L255 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-06-05 03:38:38,828 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 03:38:38,829 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 03:38:38,829 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 03:38:38,829 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 03:38:38,829 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 03:38:38,829 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 03:38:38,829 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 03:38:38,829 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 03:38:38,846 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 60 places, 80 transitions, 342 flow [2021-06-05 03:38:40,486 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 17480 states, 17478 states have (on average 5.213525575008582) internal successors, (91122), 17479 states have internal predecessors, (91122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:40,523 INFO L276 IsEmpty]: Start isEmpty. Operand has 17480 states, 17478 states have (on average 5.213525575008582) internal successors, (91122), 17479 states have internal predecessors, (91122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:40,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:38:40,705 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:38:40,706 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:38:40,707 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:38:40,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:38:40,715 INFO L82 PathProgramCache]: Analyzing trace with hash 1940016907, now seen corresponding path program 1 times [2021-06-05 03:38:40,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:38:40,722 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126275034] [2021-06-05 03:38:40,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:38:40,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:38:40,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:38:40,956 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:38:40,957 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126275034] [2021-06-05 03:38:40,958 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126275034] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:38:40,958 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:38:40,958 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 03:38:40,959 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573156557] [2021-06-05 03:38:40,962 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 03:38:40,962 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:38:40,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 03:38:40,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 03:38:41,014 INFO L87 Difference]: Start difference. First operand has 17480 states, 17478 states have (on average 5.213525575008582) internal successors, (91122), 17479 states have internal predecessors, (91122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:41,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:38:41,373 INFO L93 Difference]: Finished difference Result 14078 states and 71196 transitions. [2021-06-05 03:38:41,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 03:38:41,375 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:38:41,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:38:41,612 INFO L225 Difference]: With dead ends: 14078 [2021-06-05 03:38:41,612 INFO L226 Difference]: Without dead ends: 14076 [2021-06-05 03:38:41,613 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 03:38:41,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14076 states. [2021-06-05 03:38:42,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14076 to 14076. [2021-06-05 03:38:42,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14076 states, 14075 states have (on average 5.058188277087034) internal successors, (71194), 14075 states have internal predecessors, (71194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:42,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14076 states to 14076 states and 71194 transitions. [2021-06-05 03:38:42,690 INFO L78 Accepts]: Start accepts. Automaton has 14076 states and 71194 transitions. Word has length 29 [2021-06-05 03:38:42,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:38:42,693 INFO L482 AbstractCegarLoop]: Abstraction has 14076 states and 71194 transitions. [2021-06-05 03:38:42,693 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:42,693 INFO L276 IsEmpty]: Start isEmpty. Operand 14076 states and 71194 transitions. [2021-06-05 03:38:42,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:38:42,801 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:38:42,801 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:38:42,802 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 03:38:42,802 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:38:42,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:38:42,805 INFO L82 PathProgramCache]: Analyzing trace with hash 1468047113, now seen corresponding path program 1 times [2021-06-05 03:38:42,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:38:42,806 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885240932] [2021-06-05 03:38:42,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:38:42,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:38:42,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:38:42,866 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:38:42,866 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885240932] [2021-06-05 03:38:42,866 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885240932] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:38:42,866 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:38:42,866 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 03:38:42,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168814990] [2021-06-05 03:38:42,868 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 03:38:42,868 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:38:42,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 03:38:42,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 03:38:42,869 INFO L87 Difference]: Start difference. First operand 14076 states and 71194 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:43,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:38:43,184 INFO L93 Difference]: Finished difference Result 10782 states and 53509 transitions. [2021-06-05 03:38:43,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 03:38:43,185 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:38:43,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:38:43,277 INFO L225 Difference]: With dead ends: 10782 [2021-06-05 03:38:43,278 INFO L226 Difference]: Without dead ends: 10782 [2021-06-05 03:38:43,279 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 03:38:43,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10782 states. [2021-06-05 03:38:43,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10782 to 10782. [2021-06-05 03:38:43,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10782 states, 10781 states have (on average 4.963268713477414) internal successors, (53509), 10781 states have internal predecessors, (53509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:43,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10782 states to 10782 states and 53509 transitions. [2021-06-05 03:38:43,980 INFO L78 Accepts]: Start accepts. Automaton has 10782 states and 53509 transitions. Word has length 29 [2021-06-05 03:38:43,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:38:43,980 INFO L482 AbstractCegarLoop]: Abstraction has 10782 states and 53509 transitions. [2021-06-05 03:38:43,981 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:43,981 INFO L276 IsEmpty]: Start isEmpty. Operand 10782 states and 53509 transitions. [2021-06-05 03:38:44,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:38:44,059 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:38:44,059 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:38:44,059 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 03:38:44,059 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:38:44,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:38:44,060 INFO L82 PathProgramCache]: Analyzing trace with hash 703280557, now seen corresponding path program 1 times [2021-06-05 03:38:44,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:38:44,060 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214016157] [2021-06-05 03:38:44,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:38:44,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:38:44,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:38:44,093 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:38:44,093 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214016157] [2021-06-05 03:38:44,094 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214016157] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:38:44,094 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:38:44,095 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 03:38:44,097 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049386005] [2021-06-05 03:38:44,098 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 03:38:44,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:38:44,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 03:38:44,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 03:38:44,103 INFO L87 Difference]: Start difference. First operand 10782 states and 53509 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:44,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:38:44,189 INFO L93 Difference]: Finished difference Result 8172 states and 40171 transitions. [2021-06-05 03:38:44,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 03:38:44,189 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:38:44,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:38:44,223 INFO L225 Difference]: With dead ends: 8172 [2021-06-05 03:38:44,223 INFO L226 Difference]: Without dead ends: 8172 [2021-06-05 03:38:44,224 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 03:38:44,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8172 states. [2021-06-05 03:38:44,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8172 to 8172. [2021-06-05 03:38:44,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8172 states, 8171 states have (on average 4.91628931587321) internal successors, (40171), 8171 states have internal predecessors, (40171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:44,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8172 states to 8172 states and 40171 transitions. [2021-06-05 03:38:44,784 INFO L78 Accepts]: Start accepts. Automaton has 8172 states and 40171 transitions. Word has length 29 [2021-06-05 03:38:44,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:38:44,784 INFO L482 AbstractCegarLoop]: Abstraction has 8172 states and 40171 transitions. [2021-06-05 03:38:44,785 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:44,785 INFO L276 IsEmpty]: Start isEmpty. Operand 8172 states and 40171 transitions. [2021-06-05 03:38:44,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:38:44,808 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:38:44,808 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:38:44,808 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 03:38:44,808 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:38:44,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:38:44,809 INFO L82 PathProgramCache]: Analyzing trace with hash -1286160181, now seen corresponding path program 1 times [2021-06-05 03:38:44,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:38:44,809 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552271515] [2021-06-05 03:38:44,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:38:44,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:38:44,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:38:44,850 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:38:44,850 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552271515] [2021-06-05 03:38:44,850 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552271515] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:38:44,850 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:38:44,850 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 03:38:44,851 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396647160] [2021-06-05 03:38:44,851 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 03:38:44,852 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:38:44,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 03:38:44,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 03:38:44,853 INFO L87 Difference]: Start difference. First operand 8172 states and 40171 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:44,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:38:44,920 INFO L93 Difference]: Finished difference Result 6318 states and 30700 transitions. [2021-06-05 03:38:44,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 03:38:44,920 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:38:44,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:38:44,947 INFO L225 Difference]: With dead ends: 6318 [2021-06-05 03:38:44,948 INFO L226 Difference]: Without dead ends: 6318 [2021-06-05 03:38:44,948 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 03:38:45,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6318 states. [2021-06-05 03:38:45,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6318 to 6318. [2021-06-05 03:38:45,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6318 states, 6317 states have (on average 4.859901852145006) internal successors, (30700), 6317 states have internal predecessors, (30700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:45,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6318 states to 6318 states and 30700 transitions. [2021-06-05 03:38:45,361 INFO L78 Accepts]: Start accepts. Automaton has 6318 states and 30700 transitions. Word has length 29 [2021-06-05 03:38:45,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:38:45,361 INFO L482 AbstractCegarLoop]: Abstraction has 6318 states and 30700 transitions. [2021-06-05 03:38:45,361 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:45,361 INFO L276 IsEmpty]: Start isEmpty. Operand 6318 states and 30700 transitions. [2021-06-05 03:38:45,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:38:45,376 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:38:45,376 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:38:45,377 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 03:38:45,377 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:38:45,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:38:45,377 INFO L82 PathProgramCache]: Analyzing trace with hash -2024742227, now seen corresponding path program 1 times [2021-06-05 03:38:45,377 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:38:45,378 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713540838] [2021-06-05 03:38:45,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:38:45,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:38:45,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:38:45,400 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:38:45,400 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713540838] [2021-06-05 03:38:45,400 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713540838] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:38:45,400 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:38:45,400 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 03:38:45,400 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044938918] [2021-06-05 03:38:45,401 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 03:38:45,401 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:38:45,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 03:38:45,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 03:38:45,401 INFO L87 Difference]: Start difference. First operand 6318 states and 30700 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:45,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:38:45,437 INFO L93 Difference]: Finished difference Result 5103 states and 24301 transitions. [2021-06-05 03:38:45,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 03:38:45,437 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:38:45,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:38:45,454 INFO L225 Difference]: With dead ends: 5103 [2021-06-05 03:38:45,455 INFO L226 Difference]: Without dead ends: 5103 [2021-06-05 03:38:45,455 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 03:38:45,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5103 states. [2021-06-05 03:38:45,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5103 to 5103. [2021-06-05 03:38:45,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5103 states, 5102 states have (on average 4.763034104272834) internal successors, (24301), 5102 states have internal predecessors, (24301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:45,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5103 states to 5103 states and 24301 transitions. [2021-06-05 03:38:45,824 INFO L78 Accepts]: Start accepts. Automaton has 5103 states and 24301 transitions. Word has length 29 [2021-06-05 03:38:45,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:38:45,825 INFO L482 AbstractCegarLoop]: Abstraction has 5103 states and 24301 transitions. [2021-06-05 03:38:45,825 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:45,825 INFO L276 IsEmpty]: Start isEmpty. Operand 5103 states and 24301 transitions. [2021-06-05 03:38:45,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:38:45,838 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:38:45,838 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:38:45,838 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 03:38:45,838 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:38:45,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:38:45,839 INFO L82 PathProgramCache]: Analyzing trace with hash -1604166743, now seen corresponding path program 1 times [2021-06-05 03:38:45,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:38:45,839 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490775313] [2021-06-05 03:38:45,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:38:45,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:38:46,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:38:46,174 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:38:46,174 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490775313] [2021-06-05 03:38:46,174 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490775313] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:38:46,174 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:38:46,174 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:38:46,174 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922225289] [2021-06-05 03:38:46,174 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:38:46,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:38:46,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:38:46,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:38:46,175 INFO L87 Difference]: Start difference. First operand 5103 states and 24301 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:46,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:38:46,389 INFO L93 Difference]: Finished difference Result 11675 states and 52105 transitions. [2021-06-05 03:38:46,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:38:46,393 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:38:46,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:38:46,422 INFO L225 Difference]: With dead ends: 11675 [2021-06-05 03:38:46,422 INFO L226 Difference]: Without dead ends: 11260 [2021-06-05 03:38:46,423 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 253.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:38:46,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11260 states. [2021-06-05 03:38:46,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11260 to 5291. [2021-06-05 03:38:46,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5291 states, 5290 states have (on average 4.75406427221172) internal successors, (25149), 5290 states have internal predecessors, (25149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:46,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5291 states to 5291 states and 25149 transitions. [2021-06-05 03:38:46,853 INFO L78 Accepts]: Start accepts. Automaton has 5291 states and 25149 transitions. Word has length 29 [2021-06-05 03:38:46,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:38:46,853 INFO L482 AbstractCegarLoop]: Abstraction has 5291 states and 25149 transitions. [2021-06-05 03:38:46,853 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:46,854 INFO L276 IsEmpty]: Start isEmpty. Operand 5291 states and 25149 transitions. [2021-06-05 03:38:46,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:38:46,868 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:38:46,868 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:38:46,868 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-05 03:38:46,869 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:38:46,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:38:46,869 INFO L82 PathProgramCache]: Analyzing trace with hash 150653865, now seen corresponding path program 2 times [2021-06-05 03:38:46,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:38:46,869 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511072546] [2021-06-05 03:38:46,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:38:46,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:38:47,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:38:47,391 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:38:47,391 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511072546] [2021-06-05 03:38:47,391 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511072546] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:38:47,392 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:38:47,392 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:38:47,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070920390] [2021-06-05 03:38:47,393 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:38:47,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:38:47,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:38:47,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:38:47,394 INFO L87 Difference]: Start difference. First operand 5291 states and 25149 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:47,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:38:47,549 INFO L93 Difference]: Finished difference Result 11802 states and 52584 transitions. [2021-06-05 03:38:47,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:38:47,549 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:38:47,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:38:47,589 INFO L225 Difference]: With dead ends: 11802 [2021-06-05 03:38:47,589 INFO L226 Difference]: Without dead ends: 11180 [2021-06-05 03:38:47,591 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 251.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:38:47,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11180 states. [2021-06-05 03:38:47,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11180 to 5211. [2021-06-05 03:38:47,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5211 states, 5210 states have (on average 4.757965451055663) internal successors, (24789), 5210 states have internal predecessors, (24789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:47,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5211 states to 5211 states and 24789 transitions. [2021-06-05 03:38:47,963 INFO L78 Accepts]: Start accepts. Automaton has 5211 states and 24789 transitions. Word has length 29 [2021-06-05 03:38:47,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:38:47,963 INFO L482 AbstractCegarLoop]: Abstraction has 5211 states and 24789 transitions. [2021-06-05 03:38:47,963 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:47,964 INFO L276 IsEmpty]: Start isEmpty. Operand 5211 states and 24789 transitions. [2021-06-05 03:38:47,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:38:47,976 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:38:47,976 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:38:47,976 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-05 03:38:47,977 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:38:47,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:38:47,977 INFO L82 PathProgramCache]: Analyzing trace with hash -1823968599, now seen corresponding path program 3 times [2021-06-05 03:38:47,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:38:47,977 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125846305] [2021-06-05 03:38:47,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:38:47,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:38:48,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:38:48,202 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:38:48,202 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125846305] [2021-06-05 03:38:48,202 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125846305] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:38:48,203 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:38:48,203 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:38:48,203 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355236491] [2021-06-05 03:38:48,203 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:38:48,203 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:38:48,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:38:48,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:38:48,204 INFO L87 Difference]: Start difference. First operand 5211 states and 24789 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:48,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:38:48,474 INFO L93 Difference]: Finished difference Result 11578 states and 51663 transitions. [2021-06-05 03:38:48,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:38:48,474 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:38:48,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:38:48,511 INFO L225 Difference]: With dead ends: 11578 [2021-06-05 03:38:48,511 INFO L226 Difference]: Without dead ends: 11163 [2021-06-05 03:38:48,512 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 232.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:38:48,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11163 states. [2021-06-05 03:38:48,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11163 to 5259. [2021-06-05 03:38:48,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5259 states, 5258 states have (on average 4.7480030429821225) internal successors, (24965), 5258 states have internal predecessors, (24965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:48,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5259 states to 5259 states and 24965 transitions. [2021-06-05 03:38:48,775 INFO L78 Accepts]: Start accepts. Automaton has 5259 states and 24965 transitions. Word has length 29 [2021-06-05 03:38:48,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:38:48,776 INFO L482 AbstractCegarLoop]: Abstraction has 5259 states and 24965 transitions. [2021-06-05 03:38:48,776 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:48,776 INFO L276 IsEmpty]: Start isEmpty. Operand 5259 states and 24965 transitions. [2021-06-05 03:38:48,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:38:48,788 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:38:48,788 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:38:48,788 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-05 03:38:48,788 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:38:48,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:38:48,789 INFO L82 PathProgramCache]: Analyzing trace with hash -1107305653, now seen corresponding path program 4 times [2021-06-05 03:38:48,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:38:48,789 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663231112] [2021-06-05 03:38:48,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:38:48,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:38:48,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:38:48,995 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:38:48,995 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663231112] [2021-06-05 03:38:48,995 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663231112] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:38:48,995 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:38:48,995 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:38:48,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904534071] [2021-06-05 03:38:48,996 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:38:48,997 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:38:48,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:38:48,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:38:48,997 INFO L87 Difference]: Start difference. First operand 5259 states and 24965 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:49,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:38:49,185 INFO L93 Difference]: Finished difference Result 11640 states and 51884 transitions. [2021-06-05 03:38:49,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:38:49,185 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:38:49,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:38:49,216 INFO L225 Difference]: With dead ends: 11640 [2021-06-05 03:38:49,216 INFO L226 Difference]: Without dead ends: 11115 [2021-06-05 03:38:49,218 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 214.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:38:49,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11115 states. [2021-06-05 03:38:49,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11115 to 5211. [2021-06-05 03:38:49,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5211 states, 5210 states have (on average 4.753358925143954) internal successors, (24765), 5210 states have internal predecessors, (24765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:49,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5211 states to 5211 states and 24765 transitions. [2021-06-05 03:38:49,502 INFO L78 Accepts]: Start accepts. Automaton has 5211 states and 24765 transitions. Word has length 29 [2021-06-05 03:38:49,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:38:49,502 INFO L482 AbstractCegarLoop]: Abstraction has 5211 states and 24765 transitions. [2021-06-05 03:38:49,502 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:49,502 INFO L276 IsEmpty]: Start isEmpty. Operand 5211 states and 24765 transitions. [2021-06-05 03:38:49,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:38:49,514 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:38:49,515 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:38:49,515 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-05 03:38:49,515 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:38:49,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:38:49,515 INFO L82 PathProgramCache]: Analyzing trace with hash 975919947, now seen corresponding path program 5 times [2021-06-05 03:38:49,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:38:49,516 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845600776] [2021-06-05 03:38:49,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:38:49,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:38:49,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:38:49,730 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:38:49,730 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845600776] [2021-06-05 03:38:49,730 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845600776] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:38:49,730 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:38:49,730 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:38:49,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457282117] [2021-06-05 03:38:49,731 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:38:49,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:38:49,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:38:49,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:38:49,732 INFO L87 Difference]: Start difference. First operand 5211 states and 24765 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:49,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:38:49,875 INFO L93 Difference]: Finished difference Result 11927 states and 53099 transitions. [2021-06-05 03:38:49,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:38:49,875 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:38:49,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:38:49,905 INFO L225 Difference]: With dead ends: 11927 [2021-06-05 03:38:49,906 INFO L226 Difference]: Without dead ends: 11385 [2021-06-05 03:38:49,906 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 179.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:38:50,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11385 states. [2021-06-05 03:38:50,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11385 to 5354. [2021-06-05 03:38:50,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5354 states, 5353 states have (on average 4.7233327106295535) internal successors, (25284), 5353 states have internal predecessors, (25284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:50,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5354 states to 5354 states and 25284 transitions. [2021-06-05 03:38:50,188 INFO L78 Accepts]: Start accepts. Automaton has 5354 states and 25284 transitions. Word has length 29 [2021-06-05 03:38:50,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:38:50,188 INFO L482 AbstractCegarLoop]: Abstraction has 5354 states and 25284 transitions. [2021-06-05 03:38:50,188 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:50,188 INFO L276 IsEmpty]: Start isEmpty. Operand 5354 states and 25284 transitions. [2021-06-05 03:38:50,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:38:50,199 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:38:50,199 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:38:50,199 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-05 03:38:50,199 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:38:50,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:38:50,200 INFO L82 PathProgramCache]: Analyzing trace with hash -1067417047, now seen corresponding path program 6 times [2021-06-05 03:38:50,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:38:50,200 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637323906] [2021-06-05 03:38:50,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:38:50,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:38:50,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:38:50,420 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:38:50,420 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637323906] [2021-06-05 03:38:50,420 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637323906] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:38:50,420 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:38:50,420 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:38:50,420 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85642486] [2021-06-05 03:38:50,421 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:38:50,421 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:38:50,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:38:50,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:38:50,422 INFO L87 Difference]: Start difference. First operand 5354 states and 25284 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:50,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:38:50,602 INFO L93 Difference]: Finished difference Result 11862 states and 52730 transitions. [2021-06-05 03:38:50,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:38:50,603 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:38:50,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:38:50,641 INFO L225 Difference]: With dead ends: 11862 [2021-06-05 03:38:50,641 INFO L226 Difference]: Without dead ends: 11186 [2021-06-05 03:38:50,641 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 211.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:38:50,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11186 states. [2021-06-05 03:38:50,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11186 to 5155. [2021-06-05 03:38:50,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5155 states, 5154 states have (on average 4.759992239037641) internal successors, (24533), 5154 states have internal predecessors, (24533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:50,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 24533 transitions. [2021-06-05 03:38:50,976 INFO L78 Accepts]: Start accepts. Automaton has 5155 states and 24533 transitions. Word has length 29 [2021-06-05 03:38:50,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:38:50,976 INFO L482 AbstractCegarLoop]: Abstraction has 5155 states and 24533 transitions. [2021-06-05 03:38:50,977 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:50,977 INFO L276 IsEmpty]: Start isEmpty. Operand 5155 states and 24533 transitions. [2021-06-05 03:38:50,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:38:50,987 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:38:50,987 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:38:50,987 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-05 03:38:50,987 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:38:50,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:38:50,987 INFO L82 PathProgramCache]: Analyzing trace with hash 600707113, now seen corresponding path program 7 times [2021-06-05 03:38:50,988 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:38:50,988 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249568972] [2021-06-05 03:38:50,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:38:50,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:38:51,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:38:51,208 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:38:51,208 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249568972] [2021-06-05 03:38:51,208 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249568972] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:38:51,209 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:38:51,209 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:38:51,209 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894739746] [2021-06-05 03:38:51,209 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:38:51,209 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:38:51,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:38:51,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:38:51,210 INFO L87 Difference]: Start difference. First operand 5155 states and 24533 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:51,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:38:51,376 INFO L93 Difference]: Finished difference Result 11624 states and 51893 transitions. [2021-06-05 03:38:51,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:38:51,376 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:38:51,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:38:51,414 INFO L225 Difference]: With dead ends: 11624 [2021-06-05 03:38:51,414 INFO L226 Difference]: Without dead ends: 11209 [2021-06-05 03:38:51,415 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 226.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:38:51,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11209 states. [2021-06-05 03:38:51,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11209 to 5275. [2021-06-05 03:38:51,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5275 states, 5274 states have (on average 4.751042851725446) internal successors, (25057), 5274 states have internal predecessors, (25057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:51,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5275 states to 5275 states and 25057 transitions. [2021-06-05 03:38:51,711 INFO L78 Accepts]: Start accepts. Automaton has 5275 states and 25057 transitions. Word has length 29 [2021-06-05 03:38:51,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:38:51,712 INFO L482 AbstractCegarLoop]: Abstraction has 5275 states and 25057 transitions. [2021-06-05 03:38:51,712 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:51,712 INFO L276 IsEmpty]: Start isEmpty. Operand 5275 states and 25057 transitions. [2021-06-05 03:38:51,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:38:51,722 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:38:51,722 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:38:51,722 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-05 03:38:51,722 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:38:51,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:38:51,722 INFO L82 PathProgramCache]: Analyzing trace with hash -1939439575, now seen corresponding path program 8 times [2021-06-05 03:38:51,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:38:51,723 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847611025] [2021-06-05 03:38:51,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:38:51,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:38:51,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:38:51,943 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:38:51,943 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847611025] [2021-06-05 03:38:51,943 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847611025] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:38:51,943 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:38:51,943 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:38:51,944 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037909981] [2021-06-05 03:38:51,944 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:38:51,944 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:38:51,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:38:51,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:38:51,945 INFO L87 Difference]: Start difference. First operand 5275 states and 25057 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:52,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:38:52,099 INFO L93 Difference]: Finished difference Result 11751 states and 52372 transitions. [2021-06-05 03:38:52,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:38:52,100 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:38:52,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:38:52,137 INFO L225 Difference]: With dead ends: 11751 [2021-06-05 03:38:52,138 INFO L226 Difference]: Without dead ends: 11129 [2021-06-05 03:38:52,138 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 203.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:38:52,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11129 states. [2021-06-05 03:38:52,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11129 to 5195. [2021-06-05 03:38:52,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5195 states, 5194 states have (on average 4.754909510974201) internal successors, (24697), 5194 states have internal predecessors, (24697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:52,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5195 states to 5195 states and 24697 transitions. [2021-06-05 03:38:52,439 INFO L78 Accepts]: Start accepts. Automaton has 5195 states and 24697 transitions. Word has length 29 [2021-06-05 03:38:52,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:38:52,439 INFO L482 AbstractCegarLoop]: Abstraction has 5195 states and 24697 transitions. [2021-06-05 03:38:52,439 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:52,439 INFO L276 IsEmpty]: Start isEmpty. Operand 5195 states and 24697 transitions. [2021-06-05 03:38:52,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:38:52,449 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:38:52,449 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:38:52,449 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-06-05 03:38:52,449 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:38:52,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:38:52,450 INFO L82 PathProgramCache]: Analyzing trace with hash -1286796345, now seen corresponding path program 9 times [2021-06-05 03:38:52,450 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:38:52,450 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982806567] [2021-06-05 03:38:52,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:38:52,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:38:52,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:38:52,683 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:38:52,683 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982806567] [2021-06-05 03:38:52,683 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982806567] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:38:52,683 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:38:52,684 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:38:52,684 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349020921] [2021-06-05 03:38:52,684 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:38:52,684 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:38:52,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:38:52,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:38:52,685 INFO L87 Difference]: Start difference. First operand 5195 states and 24697 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:52,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:38:52,848 INFO L93 Difference]: Finished difference Result 11525 states and 51446 transitions. [2021-06-05 03:38:52,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:38:52,849 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:38:52,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:38:52,879 INFO L225 Difference]: With dead ends: 11525 [2021-06-05 03:38:52,879 INFO L226 Difference]: Without dead ends: 11110 [2021-06-05 03:38:52,880 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 227.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:38:53,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11110 states. [2021-06-05 03:38:53,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11110 to 5243. [2021-06-05 03:38:53,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5243 states, 5242 states have (on average 4.744944677603968) internal successors, (24873), 5242 states have internal predecessors, (24873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:53,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5243 states to 5243 states and 24873 transitions. [2021-06-05 03:38:53,140 INFO L78 Accepts]: Start accepts. Automaton has 5243 states and 24873 transitions. Word has length 29 [2021-06-05 03:38:53,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:38:53,140 INFO L482 AbstractCegarLoop]: Abstraction has 5243 states and 24873 transitions. [2021-06-05 03:38:53,140 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:53,141 INFO L276 IsEmpty]: Start isEmpty. Operand 5243 states and 24873 transitions. [2021-06-05 03:38:53,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:38:53,150 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:38:53,150 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:38:53,150 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-06-05 03:38:53,151 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:38:53,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:38:53,151 INFO L82 PathProgramCache]: Analyzing trace with hash -1801477271, now seen corresponding path program 10 times [2021-06-05 03:38:53,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:38:53,151 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955563279] [2021-06-05 03:38:53,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:38:53,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:38:53,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:38:53,377 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:38:53,377 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955563279] [2021-06-05 03:38:53,378 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955563279] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:38:53,378 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:38:53,378 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:38:53,378 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208272247] [2021-06-05 03:38:53,378 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:38:53,378 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:38:53,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:38:53,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:38:53,379 INFO L87 Difference]: Start difference. First operand 5243 states and 24873 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:53,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:38:53,554 INFO L93 Difference]: Finished difference Result 11585 states and 51662 transitions. [2021-06-05 03:38:53,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:38:53,554 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:38:53,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:38:53,584 INFO L225 Difference]: With dead ends: 11585 [2021-06-05 03:38:53,584 INFO L226 Difference]: Without dead ends: 11062 [2021-06-05 03:38:53,585 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 207.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:38:53,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11062 states. [2021-06-05 03:38:53,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11062 to 5195. [2021-06-05 03:38:53,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5195 states, 5194 states have (on average 4.750288794763188) internal successors, (24673), 5194 states have internal predecessors, (24673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:53,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5195 states to 5195 states and 24673 transitions. [2021-06-05 03:38:53,844 INFO L78 Accepts]: Start accepts. Automaton has 5195 states and 24673 transitions. Word has length 29 [2021-06-05 03:38:53,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:38:53,844 INFO L482 AbstractCegarLoop]: Abstraction has 5195 states and 24673 transitions. [2021-06-05 03:38:53,844 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:53,844 INFO L276 IsEmpty]: Start isEmpty. Operand 5195 states and 24673 transitions. [2021-06-05 03:38:53,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:38:53,857 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:38:53,857 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:38:53,857 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-06-05 03:38:53,857 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:38:53,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:38:53,858 INFO L82 PathProgramCache]: Analyzing trace with hash -1062648983, now seen corresponding path program 11 times [2021-06-05 03:38:53,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:38:53,858 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525339586] [2021-06-05 03:38:53,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:38:53,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:38:54,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:38:54,044 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:38:54,044 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525339586] [2021-06-05 03:38:54,044 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525339586] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:38:54,044 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:38:54,044 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:38:54,044 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142810897] [2021-06-05 03:38:54,045 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:38:54,045 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:38:54,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:38:54,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:38:54,045 INFO L87 Difference]: Start difference. First operand 5195 states and 24673 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:54,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:38:54,192 INFO L93 Difference]: Finished difference Result 11841 states and 52767 transitions. [2021-06-05 03:38:54,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:38:54,192 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:38:54,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:38:54,223 INFO L225 Difference]: With dead ends: 11841 [2021-06-05 03:38:54,224 INFO L226 Difference]: Without dead ends: 11299 [2021-06-05 03:38:54,224 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 174.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:38:54,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11299 states. [2021-06-05 03:38:54,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11299 to 5305. [2021-06-05 03:38:54,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5305 states, 5304 states have (on average 4.728129713423831) internal successors, (25078), 5304 states have internal predecessors, (25078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:54,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5305 states to 5305 states and 25078 transitions. [2021-06-05 03:38:54,499 INFO L78 Accepts]: Start accepts. Automaton has 5305 states and 25078 transitions. Word has length 29 [2021-06-05 03:38:54,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:38:54,499 INFO L482 AbstractCegarLoop]: Abstraction has 5305 states and 25078 transitions. [2021-06-05 03:38:54,499 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:54,500 INFO L276 IsEmpty]: Start isEmpty. Operand 5305 states and 25078 transitions. [2021-06-05 03:38:54,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:38:54,509 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:38:54,510 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:38:54,510 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-06-05 03:38:54,510 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:38:54,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:38:54,510 INFO L82 PathProgramCache]: Analyzing trace with hash -1803601081, now seen corresponding path program 12 times [2021-06-05 03:38:54,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:38:54,510 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402527631] [2021-06-05 03:38:54,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:38:54,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:38:54,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:38:54,720 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:38:54,720 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402527631] [2021-06-05 03:38:54,720 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402527631] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:38:54,720 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:38:54,720 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:38:54,720 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518113030] [2021-06-05 03:38:54,721 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:38:54,721 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:38:54,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:38:54,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:38:54,722 INFO L87 Difference]: Start difference. First operand 5305 states and 25078 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:54,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:38:54,884 INFO L93 Difference]: Finished difference Result 11774 states and 52394 transitions. [2021-06-05 03:38:54,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:38:54,884 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:38:54,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:38:54,914 INFO L225 Difference]: With dead ends: 11774 [2021-06-05 03:38:54,914 INFO L226 Difference]: Without dead ends: 11149 [2021-06-05 03:38:54,914 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 205.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:38:55,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11149 states. [2021-06-05 03:38:55,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11149 to 5155. [2021-06-05 03:38:55,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5155 states, 5154 states have (on average 4.756111757857974) internal successors, (24513), 5154 states have internal predecessors, (24513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:55,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 24513 transitions. [2021-06-05 03:38:55,189 INFO L78 Accepts]: Start accepts. Automaton has 5155 states and 24513 transitions. Word has length 29 [2021-06-05 03:38:55,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:38:55,189 INFO L482 AbstractCegarLoop]: Abstraction has 5155 states and 24513 transitions. [2021-06-05 03:38:55,189 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:55,189 INFO L276 IsEmpty]: Start isEmpty. Operand 5155 states and 24513 transitions. [2021-06-05 03:38:55,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:38:55,198 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:38:55,198 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:38:55,199 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-06-05 03:38:55,199 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:38:55,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:38:55,199 INFO L82 PathProgramCache]: Analyzing trace with hash 1861698247, now seen corresponding path program 13 times [2021-06-05 03:38:55,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:38:55,199 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849921292] [2021-06-05 03:38:55,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:38:55,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:38:55,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:38:55,412 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:38:55,413 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849921292] [2021-06-05 03:38:55,413 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849921292] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:38:55,413 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:38:55,413 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:38:55,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828458455] [2021-06-05 03:38:55,413 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:38:55,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:38:55,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:38:55,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:38:55,414 INFO L87 Difference]: Start difference. First operand 5155 states and 24513 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:55,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:38:55,579 INFO L93 Difference]: Finished difference Result 11382 states and 50845 transitions. [2021-06-05 03:38:55,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:38:55,580 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:38:55,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:38:55,612 INFO L225 Difference]: With dead ends: 11382 [2021-06-05 03:38:55,613 INFO L226 Difference]: Without dead ends: 10967 [2021-06-05 03:38:55,613 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 220.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:38:55,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10967 states. [2021-06-05 03:38:55,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10967 to 5227. [2021-06-05 03:38:55,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5227 states, 5226 states have (on average 4.747990815154994) internal successors, (24813), 5226 states have internal predecessors, (24813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:55,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5227 states to 5227 states and 24813 transitions. [2021-06-05 03:38:55,896 INFO L78 Accepts]: Start accepts. Automaton has 5227 states and 24813 transitions. Word has length 29 [2021-06-05 03:38:55,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:38:55,896 INFO L482 AbstractCegarLoop]: Abstraction has 5227 states and 24813 transitions. [2021-06-05 03:38:55,896 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:55,896 INFO L276 IsEmpty]: Start isEmpty. Operand 5227 states and 24813 transitions. [2021-06-05 03:38:55,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:38:55,905 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:38:55,905 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:38:55,905 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-06-05 03:38:55,905 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:38:55,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:38:55,905 INFO L82 PathProgramCache]: Analyzing trace with hash -1716606103, now seen corresponding path program 14 times [2021-06-05 03:38:55,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:38:55,905 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910100170] [2021-06-05 03:38:55,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:38:55,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:38:56,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:38:56,091 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:38:56,091 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910100170] [2021-06-05 03:38:56,091 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910100170] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:38:56,092 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:38:56,092 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:38:56,092 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102475872] [2021-06-05 03:38:56,093 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:38:56,093 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:38:56,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:38:56,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:38:56,094 INFO L87 Difference]: Start difference. First operand 5227 states and 24813 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:56,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:38:56,237 INFO L93 Difference]: Finished difference Result 11444 states and 51066 transitions. [2021-06-05 03:38:56,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:38:56,237 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:38:56,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:38:56,264 INFO L225 Difference]: With dead ends: 11444 [2021-06-05 03:38:56,265 INFO L226 Difference]: Without dead ends: 10919 [2021-06-05 03:38:56,265 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 193.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:38:56,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10919 states. [2021-06-05 03:38:56,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10919 to 5179. [2021-06-05 03:38:56,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.753379683275396) internal successors, (24613), 5178 states have internal predecessors, (24613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:56,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24613 transitions. [2021-06-05 03:38:56,489 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24613 transitions. Word has length 29 [2021-06-05 03:38:56,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:38:56,490 INFO L482 AbstractCegarLoop]: Abstraction has 5179 states and 24613 transitions. [2021-06-05 03:38:56,490 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:56,490 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24613 transitions. [2021-06-05 03:38:56,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:38:56,499 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:38:56,499 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:38:56,499 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-06-05 03:38:56,499 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:38:56,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:38:56,500 INFO L82 PathProgramCache]: Analyzing trace with hash 687738537, now seen corresponding path program 15 times [2021-06-05 03:38:56,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:38:56,500 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103976609] [2021-06-05 03:38:56,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:38:56,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:38:56,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:38:56,735 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:38:56,736 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103976609] [2021-06-05 03:38:56,736 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103976609] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:38:56,736 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:38:56,736 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:38:56,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549314345] [2021-06-05 03:38:56,736 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:38:56,736 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:38:56,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:38:56,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:38:56,737 INFO L87 Difference]: Start difference. First operand 5179 states and 24613 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:56,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:38:56,886 INFO L93 Difference]: Finished difference Result 11380 states and 50816 transitions. [2021-06-05 03:38:56,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:38:56,886 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:38:56,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:38:56,915 INFO L225 Difference]: With dead ends: 11380 [2021-06-05 03:38:56,916 INFO L226 Difference]: Without dead ends: 10965 [2021-06-05 03:38:56,916 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 213.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:38:57,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10965 states. [2021-06-05 03:38:57,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10965 to 5227. [2021-06-05 03:38:57,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5227 states, 5226 states have (on average 4.743398392652124) internal successors, (24789), 5226 states have internal predecessors, (24789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:57,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5227 states to 5227 states and 24789 transitions. [2021-06-05 03:38:57,171 INFO L78 Accepts]: Start accepts. Automaton has 5227 states and 24789 transitions. Word has length 29 [2021-06-05 03:38:57,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:38:57,171 INFO L482 AbstractCegarLoop]: Abstraction has 5227 states and 24789 transitions. [2021-06-05 03:38:57,171 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:57,171 INFO L276 IsEmpty]: Start isEmpty. Operand 5227 states and 24789 transitions. [2021-06-05 03:38:57,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:38:57,180 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:38:57,180 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:38:57,180 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-06-05 03:38:57,180 INFO L430 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:38:57,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:38:57,181 INFO L82 PathProgramCache]: Analyzing trace with hash 1717303913, now seen corresponding path program 16 times [2021-06-05 03:38:57,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:38:57,181 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566775649] [2021-06-05 03:38:57,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:38:57,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:38:57,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:38:57,396 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:38:57,396 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566775649] [2021-06-05 03:38:57,396 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566775649] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:38:57,397 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:38:57,397 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:38:57,397 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083534048] [2021-06-05 03:38:57,397 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:38:57,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:38:57,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:38:57,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:38:57,399 INFO L87 Difference]: Start difference. First operand 5227 states and 24789 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:57,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:38:57,558 INFO L93 Difference]: Finished difference Result 11440 states and 51032 transitions. [2021-06-05 03:38:57,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:38:57,558 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:38:57,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:38:57,588 INFO L225 Difference]: With dead ends: 11440 [2021-06-05 03:38:57,588 INFO L226 Difference]: Without dead ends: 10917 [2021-06-05 03:38:57,588 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 208.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:38:57,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10917 states. [2021-06-05 03:38:57,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10917 to 5179. [2021-06-05 03:38:57,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.748744689069139) internal successors, (24589), 5178 states have internal predecessors, (24589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:57,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24589 transitions. [2021-06-05 03:38:57,845 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24589 transitions. Word has length 29 [2021-06-05 03:38:57,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:38:57,845 INFO L482 AbstractCegarLoop]: Abstraction has 5179 states and 24589 transitions. [2021-06-05 03:38:57,845 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:57,845 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24589 transitions. [2021-06-05 03:38:57,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:38:57,855 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:38:57,855 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:38:57,855 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-06-05 03:38:57,855 INFO L430 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:38:57,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:38:57,855 INFO L82 PathProgramCache]: Analyzing trace with hash 1891230347, now seen corresponding path program 17 times [2021-06-05 03:38:57,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:38:57,856 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964506274] [2021-06-05 03:38:57,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:38:57,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:38:58,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:38:58,079 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:38:58,079 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964506274] [2021-06-05 03:38:58,080 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964506274] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:38:58,080 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:38:58,080 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:38:58,080 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556907022] [2021-06-05 03:38:58,080 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:38:58,080 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:38:58,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:38:58,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:38:58,081 INFO L87 Difference]: Start difference. First operand 5179 states and 24589 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:58,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:38:58,251 INFO L93 Difference]: Finished difference Result 11534 states and 51477 transitions. [2021-06-05 03:38:58,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:38:58,251 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:38:58,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:38:58,281 INFO L225 Difference]: With dead ends: 11534 [2021-06-05 03:38:58,282 INFO L226 Difference]: Without dead ends: 11057 [2021-06-05 03:38:58,282 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 233.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:38:58,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11057 states. [2021-06-05 03:38:58,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11057 to 5257. [2021-06-05 03:38:58,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5257 states, 5256 states have (on average 4.7340182648401825) internal successors, (24882), 5256 states have internal predecessors, (24882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:58,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5257 states to 5257 states and 24882 transitions. [2021-06-05 03:38:58,542 INFO L78 Accepts]: Start accepts. Automaton has 5257 states and 24882 transitions. Word has length 29 [2021-06-05 03:38:58,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:38:58,542 INFO L482 AbstractCegarLoop]: Abstraction has 5257 states and 24882 transitions. [2021-06-05 03:38:58,542 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:58,542 INFO L276 IsEmpty]: Start isEmpty. Operand 5257 states and 24882 transitions. [2021-06-05 03:38:58,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:38:58,551 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:38:58,551 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:38:58,551 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-06-05 03:38:58,551 INFO L430 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:38:58,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:38:58,552 INFO L82 PathProgramCache]: Analyzing trace with hash 499085801, now seen corresponding path program 18 times [2021-06-05 03:38:58,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:38:58,552 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154049524] [2021-06-05 03:38:58,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:38:58,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:38:58,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:38:58,732 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:38:58,732 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154049524] [2021-06-05 03:38:58,732 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154049524] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:38:58,732 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:38:58,732 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:38:58,732 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222426392] [2021-06-05 03:38:58,732 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:38:58,732 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:38:58,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:38:58,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:38:58,733 INFO L87 Difference]: Start difference. First operand 5257 states and 24882 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:58,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:38:58,870 INFO L93 Difference]: Finished difference Result 11532 states and 51394 transitions. [2021-06-05 03:38:58,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:38:58,871 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:38:58,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:38:58,901 INFO L225 Difference]: With dead ends: 11532 [2021-06-05 03:38:58,901 INFO L226 Difference]: Without dead ends: 10955 [2021-06-05 03:38:58,901 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 178.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:38:59,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10955 states. [2021-06-05 03:38:59,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10955 to 5155. [2021-06-05 03:38:59,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5155 states, 5154 states have (on average 4.753783469150175) internal successors, (24501), 5154 states have internal predecessors, (24501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:59,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 24501 transitions. [2021-06-05 03:38:59,158 INFO L78 Accepts]: Start accepts. Automaton has 5155 states and 24501 transitions. Word has length 29 [2021-06-05 03:38:59,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:38:59,158 INFO L482 AbstractCegarLoop]: Abstraction has 5155 states and 24501 transitions. [2021-06-05 03:38:59,158 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:59,158 INFO L276 IsEmpty]: Start isEmpty. Operand 5155 states and 24501 transitions. [2021-06-05 03:38:59,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:38:59,170 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:38:59,170 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:38:59,170 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-06-05 03:38:59,170 INFO L430 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:38:59,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:38:59,171 INFO L82 PathProgramCache]: Analyzing trace with hash -1731554677, now seen corresponding path program 19 times [2021-06-05 03:38:59,171 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:38:59,171 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540866414] [2021-06-05 03:38:59,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:38:59,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:38:59,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:38:59,342 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:38:59,342 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540866414] [2021-06-05 03:38:59,343 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540866414] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:38:59,343 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:38:59,343 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:38:59,343 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684375955] [2021-06-05 03:38:59,343 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:38:59,343 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:38:59,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:38:59,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:38:59,344 INFO L87 Difference]: Start difference. First operand 5155 states and 24501 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:59,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:38:59,490 INFO L93 Difference]: Finished difference Result 12078 states and 53790 transitions. [2021-06-05 03:38:59,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:38:59,491 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:38:59,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:38:59,522 INFO L225 Difference]: With dead ends: 12078 [2021-06-05 03:38:59,522 INFO L226 Difference]: Without dead ends: 11536 [2021-06-05 03:38:59,523 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 168.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:38:59,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11536 states. [2021-06-05 03:38:59,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11536 to 5385. [2021-06-05 03:38:59,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5385 states, 5384 states have (on average 4.720839524517087) internal successors, (25417), 5384 states have internal predecessors, (25417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:59,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5385 states to 5385 states and 25417 transitions. [2021-06-05 03:38:59,801 INFO L78 Accepts]: Start accepts. Automaton has 5385 states and 25417 transitions. Word has length 29 [2021-06-05 03:38:59,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:38:59,801 INFO L482 AbstractCegarLoop]: Abstraction has 5385 states and 25417 transitions. [2021-06-05 03:38:59,801 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:38:59,801 INFO L276 IsEmpty]: Start isEmpty. Operand 5385 states and 25417 transitions. [2021-06-05 03:38:59,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:38:59,811 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:38:59,811 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:38:59,811 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-06-05 03:38:59,811 INFO L430 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:38:59,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:38:59,811 INFO L82 PathProgramCache]: Analyzing trace with hash 520075625, now seen corresponding path program 20 times [2021-06-05 03:38:59,811 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:38:59,811 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942353426] [2021-06-05 03:38:59,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:38:59,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:38:59,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:38:59,987 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:38:59,987 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942353426] [2021-06-05 03:38:59,987 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942353426] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:38:59,987 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:38:59,988 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:38:59,988 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737012906] [2021-06-05 03:38:59,988 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:38:59,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:38:59,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:38:59,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:38:59,989 INFO L87 Difference]: Start difference. First operand 5385 states and 25417 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:00,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:00,130 INFO L93 Difference]: Finished difference Result 12013 states and 53421 transitions. [2021-06-05 03:39:00,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:00,131 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:00,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:00,161 INFO L225 Difference]: With dead ends: 12013 [2021-06-05 03:39:00,161 INFO L226 Difference]: Without dead ends: 11393 [2021-06-05 03:39:00,161 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 184.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:00,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11393 states. [2021-06-05 03:39:00,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11393 to 5242. [2021-06-05 03:39:00,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5242 states, 5241 states have (on average 4.737073077656936) internal successors, (24827), 5241 states have internal predecessors, (24827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:00,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5242 states to 5242 states and 24827 transitions. [2021-06-05 03:39:00,420 INFO L78 Accepts]: Start accepts. Automaton has 5242 states and 24827 transitions. Word has length 29 [2021-06-05 03:39:00,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:00,420 INFO L482 AbstractCegarLoop]: Abstraction has 5242 states and 24827 transitions. [2021-06-05 03:39:00,420 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:00,420 INFO L276 IsEmpty]: Start isEmpty. Operand 5242 states and 24827 transitions. [2021-06-05 03:39:00,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:00,429 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:00,429 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:00,429 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-06-05 03:39:00,430 INFO L430 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:00,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:00,430 INFO L82 PathProgramCache]: Analyzing trace with hash 447332969, now seen corresponding path program 21 times [2021-06-05 03:39:00,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:00,430 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566556745] [2021-06-05 03:39:00,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:00,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:00,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:00,608 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:00,608 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566556745] [2021-06-05 03:39:00,608 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566556745] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:00,608 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:00,608 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:00,608 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196337730] [2021-06-05 03:39:00,608 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:00,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:00,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:00,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:00,609 INFO L87 Difference]: Start difference. First operand 5242 states and 24827 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:00,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:00,751 INFO L93 Difference]: Finished difference Result 12043 states and 53599 transitions. [2021-06-05 03:39:00,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:00,752 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:00,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:00,782 INFO L225 Difference]: With dead ends: 12043 [2021-06-05 03:39:00,782 INFO L226 Difference]: Without dead ends: 11501 [2021-06-05 03:39:00,782 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 171.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:00,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11501 states. [2021-06-05 03:39:01,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11501 to 5352. [2021-06-05 03:39:01,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5352 states, 5351 states have (on average 4.71538030274715) internal successors, (25232), 5351 states have internal predecessors, (25232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:01,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5352 states to 5352 states and 25232 transitions. [2021-06-05 03:39:01,071 INFO L78 Accepts]: Start accepts. Automaton has 5352 states and 25232 transitions. Word has length 29 [2021-06-05 03:39:01,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:01,071 INFO L482 AbstractCegarLoop]: Abstraction has 5352 states and 25232 transitions. [2021-06-05 03:39:01,071 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:01,071 INFO L276 IsEmpty]: Start isEmpty. Operand 5352 states and 25232 transitions. [2021-06-05 03:39:01,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:01,080 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:01,080 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:01,080 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-06-05 03:39:01,080 INFO L430 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:01,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:01,081 INFO L82 PathProgramCache]: Analyzing trace with hash 1003121257, now seen corresponding path program 22 times [2021-06-05 03:39:01,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:01,081 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507173001] [2021-06-05 03:39:01,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:01,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:01,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:01,242 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:01,242 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507173001] [2021-06-05 03:39:01,243 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507173001] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:01,243 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:01,243 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:01,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593171114] [2021-06-05 03:39:01,243 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:01,243 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:01,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:01,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:01,244 INFO L87 Difference]: Start difference. First operand 5352 states and 25232 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:01,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:01,387 INFO L93 Difference]: Finished difference Result 11976 states and 53226 transitions. [2021-06-05 03:39:01,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:01,387 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:01,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:01,415 INFO L225 Difference]: With dead ends: 11976 [2021-06-05 03:39:01,416 INFO L226 Difference]: Without dead ends: 11391 [2021-06-05 03:39:01,416 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 166.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:01,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11391 states. [2021-06-05 03:39:01,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11391 to 5242. [2021-06-05 03:39:01,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5242 states, 5241 states have (on average 4.726578897157031) internal successors, (24772), 5241 states have internal predecessors, (24772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:01,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5242 states to 5242 states and 24772 transitions. [2021-06-05 03:39:01,642 INFO L78 Accepts]: Start accepts. Automaton has 5242 states and 24772 transitions. Word has length 29 [2021-06-05 03:39:01,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:01,642 INFO L482 AbstractCegarLoop]: Abstraction has 5242 states and 24772 transitions. [2021-06-05 03:39:01,642 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:01,642 INFO L276 IsEmpty]: Start isEmpty. Operand 5242 states and 24772 transitions. [2021-06-05 03:39:01,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:01,651 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:01,651 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:01,651 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-06-05 03:39:01,651 INFO L430 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:01,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:01,651 INFO L82 PathProgramCache]: Analyzing trace with hash 1429680583, now seen corresponding path program 23 times [2021-06-05 03:39:01,651 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:01,652 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781273145] [2021-06-05 03:39:01,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:01,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:01,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:01,809 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:01,809 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781273145] [2021-06-05 03:39:01,809 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781273145] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:01,809 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:01,809 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:01,809 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742127540] [2021-06-05 03:39:01,810 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:01,810 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:01,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:01,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:01,810 INFO L87 Difference]: Start difference. First operand 5242 states and 24772 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:01,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:01,936 INFO L93 Difference]: Finished difference Result 11881 states and 52884 transitions. [2021-06-05 03:39:01,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:01,937 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:01,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:01,966 INFO L225 Difference]: With dead ends: 11881 [2021-06-05 03:39:01,966 INFO L226 Difference]: Without dead ends: 11404 [2021-06-05 03:39:01,966 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 158.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:02,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11404 states. [2021-06-05 03:39:02,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11404 to 5320. [2021-06-05 03:39:02,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5320 states, 5319 states have (on average 4.712351945854484) internal successors, (25065), 5319 states have internal predecessors, (25065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:02,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5320 states to 5320 states and 25065 transitions. [2021-06-05 03:39:02,196 INFO L78 Accepts]: Start accepts. Automaton has 5320 states and 25065 transitions. Word has length 29 [2021-06-05 03:39:02,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:02,197 INFO L482 AbstractCegarLoop]: Abstraction has 5320 states and 25065 transitions. [2021-06-05 03:39:02,197 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:02,197 INFO L276 IsEmpty]: Start isEmpty. Operand 5320 states and 25065 transitions. [2021-06-05 03:39:02,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:02,206 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:02,206 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:02,206 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-06-05 03:39:02,206 INFO L430 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:02,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:02,206 INFO L82 PathProgramCache]: Analyzing trace with hash 1222872617, now seen corresponding path program 24 times [2021-06-05 03:39:02,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:02,206 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931405668] [2021-06-05 03:39:02,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:02,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:02,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:02,369 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:02,369 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931405668] [2021-06-05 03:39:02,369 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931405668] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:02,369 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:02,369 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:02,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544530414] [2021-06-05 03:39:02,369 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:02,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:02,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:02,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:02,370 INFO L87 Difference]: Start difference. First operand 5320 states and 25065 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:02,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:02,525 INFO L93 Difference]: Finished difference Result 11879 states and 52801 transitions. [2021-06-05 03:39:02,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:02,526 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:02,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:02,561 INFO L225 Difference]: With dead ends: 11879 [2021-06-05 03:39:02,561 INFO L226 Difference]: Without dead ends: 11203 [2021-06-05 03:39:02,563 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 181.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:02,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11203 states. [2021-06-05 03:39:02,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11203 to 5119. [2021-06-05 03:39:02,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5119 states, 5118 states have (on average 4.761430246189918) internal successors, (24369), 5118 states have internal predecessors, (24369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:02,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5119 states to 5119 states and 24369 transitions. [2021-06-05 03:39:02,790 INFO L78 Accepts]: Start accepts. Automaton has 5119 states and 24369 transitions. Word has length 29 [2021-06-05 03:39:02,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:02,790 INFO L482 AbstractCegarLoop]: Abstraction has 5119 states and 24369 transitions. [2021-06-05 03:39:02,790 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:02,790 INFO L276 IsEmpty]: Start isEmpty. Operand 5119 states and 24369 transitions. [2021-06-05 03:39:02,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:02,798 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:02,799 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:02,799 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-06-05 03:39:02,799 INFO L430 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:02,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:02,799 INFO L82 PathProgramCache]: Analyzing trace with hash 1948370635, now seen corresponding path program 25 times [2021-06-05 03:39:02,799 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:02,799 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123474311] [2021-06-05 03:39:02,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:02,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:02,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:02,975 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:02,975 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123474311] [2021-06-05 03:39:02,975 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123474311] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:02,976 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:02,976 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:02,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449815656] [2021-06-05 03:39:02,976 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:02,976 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:02,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:02,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:02,977 INFO L87 Difference]: Start difference. First operand 5119 states and 24369 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:03,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:03,095 INFO L93 Difference]: Finished difference Result 11480 states and 51182 transitions. [2021-06-05 03:39:03,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:03,096 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:03,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:03,122 INFO L225 Difference]: With dead ends: 11480 [2021-06-05 03:39:03,123 INFO L226 Difference]: Without dead ends: 11065 [2021-06-05 03:39:03,123 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 186.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:03,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11065 states. [2021-06-05 03:39:03,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11065 to 5279. [2021-06-05 03:39:03,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5279 states, 5278 states have (on average 4.751989389920424) internal successors, (25081), 5278 states have internal predecessors, (25081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:03,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5279 states to 5279 states and 25081 transitions. [2021-06-05 03:39:03,352 INFO L78 Accepts]: Start accepts. Automaton has 5279 states and 25081 transitions. Word has length 29 [2021-06-05 03:39:03,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:03,352 INFO L482 AbstractCegarLoop]: Abstraction has 5279 states and 25081 transitions. [2021-06-05 03:39:03,352 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:03,352 INFO L276 IsEmpty]: Start isEmpty. Operand 5279 states and 25081 transitions. [2021-06-05 03:39:03,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:03,361 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:03,361 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:03,361 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-06-05 03:39:03,361 INFO L430 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:03,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:03,362 INFO L82 PathProgramCache]: Analyzing trace with hash -591776053, now seen corresponding path program 26 times [2021-06-05 03:39:03,362 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:03,362 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581685064] [2021-06-05 03:39:03,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:03,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:03,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:03,530 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:03,530 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581685064] [2021-06-05 03:39:03,530 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581685064] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:03,530 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:03,530 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:03,530 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859837391] [2021-06-05 03:39:03,531 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:03,531 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:03,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:03,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:03,531 INFO L87 Difference]: Start difference. First operand 5279 states and 25081 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:03,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:03,661 INFO L93 Difference]: Finished difference Result 11607 states and 51661 transitions. [2021-06-05 03:39:03,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:03,662 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:03,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:03,697 INFO L225 Difference]: With dead ends: 11607 [2021-06-05 03:39:03,697 INFO L226 Difference]: Without dead ends: 10985 [2021-06-05 03:39:03,698 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 162.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:03,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10985 states. [2021-06-05 03:39:03,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10985 to 5199. [2021-06-05 03:39:03,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5199 states, 5198 states have (on average 4.755867641400538) internal successors, (24721), 5198 states have internal predecessors, (24721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:04,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5199 states to 5199 states and 24721 transitions. [2021-06-05 03:39:04,005 INFO L78 Accepts]: Start accepts. Automaton has 5199 states and 24721 transitions. Word has length 29 [2021-06-05 03:39:04,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:04,005 INFO L482 AbstractCegarLoop]: Abstraction has 5199 states and 24721 transitions. [2021-06-05 03:39:04,005 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:04,005 INFO L276 IsEmpty]: Start isEmpty. Operand 5199 states and 24721 transitions. [2021-06-05 03:39:04,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:04,014 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:04,014 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:04,014 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-06-05 03:39:04,014 INFO L430 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:04,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:04,015 INFO L82 PathProgramCache]: Analyzing trace with hash 1728568779, now seen corresponding path program 27 times [2021-06-05 03:39:04,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:04,015 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974164156] [2021-06-05 03:39:04,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:04,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:04,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:04,195 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:04,195 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974164156] [2021-06-05 03:39:04,195 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974164156] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:04,196 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:04,196 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:04,196 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158188250] [2021-06-05 03:39:04,197 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:04,197 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:04,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:04,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:04,199 INFO L87 Difference]: Start difference. First operand 5199 states and 24721 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:04,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:04,351 INFO L93 Difference]: Finished difference Result 11383 states and 50740 transitions. [2021-06-05 03:39:04,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:04,352 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:04,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:04,379 INFO L225 Difference]: With dead ends: 11383 [2021-06-05 03:39:04,379 INFO L226 Difference]: Without dead ends: 10968 [2021-06-05 03:39:04,380 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 173.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:04,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10968 states. [2021-06-05 03:39:04,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10968 to 5247. [2021-06-05 03:39:04,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5247 states, 5246 states have (on average 4.745901639344262) internal successors, (24897), 5246 states have internal predecessors, (24897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:04,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5247 states to 5247 states and 24897 transitions. [2021-06-05 03:39:04,605 INFO L78 Accepts]: Start accepts. Automaton has 5247 states and 24897 transitions. Word has length 29 [2021-06-05 03:39:04,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:04,605 INFO L482 AbstractCegarLoop]: Abstraction has 5247 states and 24897 transitions. [2021-06-05 03:39:04,605 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:04,605 INFO L276 IsEmpty]: Start isEmpty. Operand 5247 states and 24897 transitions. [2021-06-05 03:39:04,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:04,614 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:04,614 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:04,614 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-06-05 03:39:04,614 INFO L430 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:04,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:04,614 INFO L82 PathProgramCache]: Analyzing trace with hash -1849735571, now seen corresponding path program 28 times [2021-06-05 03:39:04,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:04,614 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877131066] [2021-06-05 03:39:04,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:04,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:04,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:04,779 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:04,779 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877131066] [2021-06-05 03:39:04,779 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877131066] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:04,779 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:04,779 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:04,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958422546] [2021-06-05 03:39:04,779 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:04,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:04,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:04,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:04,780 INFO L87 Difference]: Start difference. First operand 5247 states and 24897 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:04,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:04,934 INFO L93 Difference]: Finished difference Result 11445 states and 50961 transitions. [2021-06-05 03:39:04,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:04,934 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:04,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:04,961 INFO L225 Difference]: With dead ends: 11445 [2021-06-05 03:39:04,961 INFO L226 Difference]: Without dead ends: 10920 [2021-06-05 03:39:04,961 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 188.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:05,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10920 states. [2021-06-05 03:39:05,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10920 to 5199. [2021-06-05 03:39:05,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5199 states, 5198 states have (on average 4.751250480954213) internal successors, (24697), 5198 states have internal predecessors, (24697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:05,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5199 states to 5199 states and 24697 transitions. [2021-06-05 03:39:05,183 INFO L78 Accepts]: Start accepts. Automaton has 5199 states and 24697 transitions. Word has length 29 [2021-06-05 03:39:05,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:05,183 INFO L482 AbstractCegarLoop]: Abstraction has 5199 states and 24697 transitions. [2021-06-05 03:39:05,183 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:05,183 INFO L276 IsEmpty]: Start isEmpty. Operand 5199 states and 24697 transitions. [2021-06-05 03:39:05,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:05,191 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:05,191 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:05,192 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-06-05 03:39:05,192 INFO L430 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:05,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:05,192 INFO L82 PathProgramCache]: Analyzing trace with hash 233490029, now seen corresponding path program 29 times [2021-06-05 03:39:05,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:05,192 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409299283] [2021-06-05 03:39:05,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:05,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:05,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:05,347 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:05,347 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409299283] [2021-06-05 03:39:05,348 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409299283] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:05,348 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:05,348 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:05,348 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430394414] [2021-06-05 03:39:05,348 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:05,348 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:05,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:05,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:05,348 INFO L87 Difference]: Start difference. First operand 5199 states and 24697 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:05,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:05,455 INFO L93 Difference]: Finished difference Result 11732 states and 52176 transitions. [2021-06-05 03:39:05,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:05,456 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:05,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:05,492 INFO L225 Difference]: With dead ends: 11732 [2021-06-05 03:39:05,492 INFO L226 Difference]: Without dead ends: 11190 [2021-06-05 03:39:05,492 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 149.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:05,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11190 states. [2021-06-05 03:39:05,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11190 to 5342. [2021-06-05 03:39:05,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5342 states, 5341 states have (on average 4.72121325594458) internal successors, (25216), 5341 states have internal predecessors, (25216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:05,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5342 states to 5342 states and 25216 transitions. [2021-06-05 03:39:05,773 INFO L78 Accepts]: Start accepts. Automaton has 5342 states and 25216 transitions. Word has length 29 [2021-06-05 03:39:05,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:05,773 INFO L482 AbstractCegarLoop]: Abstraction has 5342 states and 25216 transitions. [2021-06-05 03:39:05,773 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:05,773 INFO L276 IsEmpty]: Start isEmpty. Operand 5342 states and 25216 transitions. [2021-06-05 03:39:05,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:05,782 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:05,782 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:05,782 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-06-05 03:39:05,782 INFO L430 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:05,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:05,782 INFO L82 PathProgramCache]: Analyzing trace with hash -1809846965, now seen corresponding path program 30 times [2021-06-05 03:39:05,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:05,782 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066772522] [2021-06-05 03:39:05,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:05,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:05,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:05,948 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:05,948 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066772522] [2021-06-05 03:39:05,948 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066772522] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:05,948 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:05,948 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:05,948 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994501880] [2021-06-05 03:39:05,948 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:05,948 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:05,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:05,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:05,949 INFO L87 Difference]: Start difference. First operand 5342 states and 25216 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:06,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:06,074 INFO L93 Difference]: Finished difference Result 11667 states and 51807 transitions. [2021-06-05 03:39:06,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:06,074 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:06,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:06,102 INFO L225 Difference]: With dead ends: 11667 [2021-06-05 03:39:06,102 INFO L226 Difference]: Without dead ends: 10991 [2021-06-05 03:39:06,102 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 178.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:06,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10991 states. [2021-06-05 03:39:06,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10991 to 5143. [2021-06-05 03:39:06,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.758654220147802) internal successors, (24469), 5142 states have internal predecessors, (24469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:06,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24469 transitions. [2021-06-05 03:39:06,325 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24469 transitions. Word has length 29 [2021-06-05 03:39:06,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:06,325 INFO L482 AbstractCegarLoop]: Abstraction has 5143 states and 24469 transitions. [2021-06-05 03:39:06,325 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:06,325 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24469 transitions. [2021-06-05 03:39:06,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:06,334 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:06,335 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:06,335 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-06-05 03:39:06,335 INFO L430 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:06,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:06,335 INFO L82 PathProgramCache]: Analyzing trace with hash 1139837771, now seen corresponding path program 31 times [2021-06-05 03:39:06,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:06,335 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045131139] [2021-06-05 03:39:06,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:06,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:06,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:06,511 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:06,511 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045131139] [2021-06-05 03:39:06,511 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045131139] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:06,511 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:06,511 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:06,511 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115554876] [2021-06-05 03:39:06,511 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:06,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:06,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:06,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:06,512 INFO L87 Difference]: Start difference. First operand 5143 states and 24469 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:06,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:06,648 INFO L93 Difference]: Finished difference Result 11315 states and 50439 transitions. [2021-06-05 03:39:06,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:06,648 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:06,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:06,676 INFO L225 Difference]: With dead ends: 11315 [2021-06-05 03:39:06,676 INFO L226 Difference]: Without dead ends: 10900 [2021-06-05 03:39:06,677 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 189.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:06,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10900 states. [2021-06-05 03:39:06,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10900 to 5255. [2021-06-05 03:39:06,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5255 states, 5254 states have (on average 4.74857251617815) internal successors, (24949), 5254 states have internal predecessors, (24949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:06,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5255 states to 5255 states and 24949 transitions. [2021-06-05 03:39:06,906 INFO L78 Accepts]: Start accepts. Automaton has 5255 states and 24949 transitions. Word has length 29 [2021-06-05 03:39:06,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:06,906 INFO L482 AbstractCegarLoop]: Abstraction has 5255 states and 24949 transitions. [2021-06-05 03:39:06,906 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:06,906 INFO L276 IsEmpty]: Start isEmpty. Operand 5255 states and 24949 transitions. [2021-06-05 03:39:06,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:06,915 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:06,915 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:06,915 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-06-05 03:39:06,915 INFO L430 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:06,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:06,915 INFO L82 PathProgramCache]: Analyzing trace with hash -1400308917, now seen corresponding path program 32 times [2021-06-05 03:39:06,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:06,915 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643024876] [2021-06-05 03:39:06,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:06,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:07,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:07,083 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:07,083 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643024876] [2021-06-05 03:39:07,083 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643024876] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:07,083 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:07,083 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:07,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511935261] [2021-06-05 03:39:07,084 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:07,084 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:07,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:07,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:07,084 INFO L87 Difference]: Start difference. First operand 5255 states and 24949 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:07,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:07,199 INFO L93 Difference]: Finished difference Result 11442 states and 50918 transitions. [2021-06-05 03:39:07,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:07,200 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:07,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:07,230 INFO L225 Difference]: With dead ends: 11442 [2021-06-05 03:39:07,230 INFO L226 Difference]: Without dead ends: 10820 [2021-06-05 03:39:07,231 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 162.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:07,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10820 states. [2021-06-05 03:39:07,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10820 to 5175. [2021-06-05 03:39:07,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5175 states, 5174 states have (on average 4.753962118283726) internal successors, (24597), 5174 states have internal predecessors, (24597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:07,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5175 states to 5175 states and 24597 transitions. [2021-06-05 03:39:07,455 INFO L78 Accepts]: Start accepts. Automaton has 5175 states and 24597 transitions. Word has length 29 [2021-06-05 03:39:07,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:07,455 INFO L482 AbstractCegarLoop]: Abstraction has 5175 states and 24597 transitions. [2021-06-05 03:39:07,455 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:07,455 INFO L276 IsEmpty]: Start isEmpty. Operand 5175 states and 24597 transitions. [2021-06-05 03:39:07,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:07,464 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:07,464 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:07,464 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-06-05 03:39:07,465 INFO L430 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:07,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:07,465 INFO L82 PathProgramCache]: Analyzing trace with hash 1224625769, now seen corresponding path program 33 times [2021-06-05 03:39:07,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:07,465 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679675419] [2021-06-05 03:39:07,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:07,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:07,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:07,632 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:07,632 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679675419] [2021-06-05 03:39:07,632 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679675419] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:07,632 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:07,632 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:07,632 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478525831] [2021-06-05 03:39:07,633 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:07,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:07,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:07,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:07,634 INFO L87 Difference]: Start difference. First operand 5175 states and 24597 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:07,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:07,784 INFO L93 Difference]: Finished difference Result 11140 states and 49656 transitions. [2021-06-05 03:39:07,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:07,784 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:07,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:07,811 INFO L225 Difference]: With dead ends: 11140 [2021-06-05 03:39:07,811 INFO L226 Difference]: Without dead ends: 10725 [2021-06-05 03:39:07,812 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 184.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:07,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10725 states. [2021-06-05 03:39:08,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10725 to 5207. [2021-06-05 03:39:08,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5207 states, 5206 states have (on average 4.746254321936227) internal successors, (24709), 5206 states have internal predecessors, (24709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:08,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5207 states to 5207 states and 24709 transitions. [2021-06-05 03:39:08,036 INFO L78 Accepts]: Start accepts. Automaton has 5207 states and 24709 transitions. Word has length 29 [2021-06-05 03:39:08,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:08,036 INFO L482 AbstractCegarLoop]: Abstraction has 5207 states and 24709 transitions. [2021-06-05 03:39:08,036 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:08,037 INFO L276 IsEmpty]: Start isEmpty. Operand 5207 states and 24709 transitions. [2021-06-05 03:39:08,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:08,045 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:08,045 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:08,046 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-06-05 03:39:08,046 INFO L430 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:08,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:08,046 INFO L82 PathProgramCache]: Analyzing trace with hash -1177495225, now seen corresponding path program 34 times [2021-06-05 03:39:08,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:08,046 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541991451] [2021-06-05 03:39:08,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:08,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:08,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:08,200 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:08,200 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541991451] [2021-06-05 03:39:08,200 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541991451] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:08,200 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:08,204 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:08,204 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915515572] [2021-06-05 03:39:08,204 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:08,204 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:08,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:08,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:08,205 INFO L87 Difference]: Start difference. First operand 5207 states and 24709 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:08,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:08,336 INFO L93 Difference]: Finished difference Result 11140 states and 49624 transitions. [2021-06-05 03:39:08,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:08,336 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:08,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:08,363 INFO L225 Difference]: With dead ends: 11140 [2021-06-05 03:39:08,363 INFO L226 Difference]: Without dead ends: 10693 [2021-06-05 03:39:08,363 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 149.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:08,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10693 states. [2021-06-05 03:39:08,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10693 to 5175. [2021-06-05 03:39:08,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5175 states, 5174 states have (on average 4.750869733281793) internal successors, (24581), 5174 states have internal predecessors, (24581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:08,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5175 states to 5175 states and 24581 transitions. [2021-06-05 03:39:08,586 INFO L78 Accepts]: Start accepts. Automaton has 5175 states and 24581 transitions. Word has length 29 [2021-06-05 03:39:08,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:08,586 INFO L482 AbstractCegarLoop]: Abstraction has 5175 states and 24581 transitions. [2021-06-05 03:39:08,586 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:08,586 INFO L276 IsEmpty]: Start isEmpty. Operand 5175 states and 24581 transitions. [2021-06-05 03:39:08,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:08,594 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:08,594 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:08,594 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-06-05 03:39:08,595 INFO L430 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:08,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:08,595 INFO L82 PathProgramCache]: Analyzing trace with hash -455891675, now seen corresponding path program 35 times [2021-06-05 03:39:08,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:08,595 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179225878] [2021-06-05 03:39:08,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:08,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:08,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:08,753 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:08,753 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179225878] [2021-06-05 03:39:08,753 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179225878] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:08,753 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:08,753 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:08,753 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739053633] [2021-06-05 03:39:08,753 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:08,754 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:08,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:08,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:08,754 INFO L87 Difference]: Start difference. First operand 5175 states and 24581 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:08,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:08,872 INFO L93 Difference]: Finished difference Result 11442 states and 50918 transitions. [2021-06-05 03:39:08,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:08,872 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:08,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:08,899 INFO L225 Difference]: With dead ends: 11442 [2021-06-05 03:39:08,899 INFO L226 Difference]: Without dead ends: 10900 [2021-06-05 03:39:08,899 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 150.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:09,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10900 states. [2021-06-05 03:39:09,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10900 to 5255. [2021-06-05 03:39:09,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5255 states, 5254 states have (on average 4.7333460220784165) internal successors, (24869), 5254 states have internal predecessors, (24869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:09,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5255 states to 5255 states and 24869 transitions. [2021-06-05 03:39:09,126 INFO L78 Accepts]: Start accepts. Automaton has 5255 states and 24869 transitions. Word has length 29 [2021-06-05 03:39:09,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:09,127 INFO L482 AbstractCegarLoop]: Abstraction has 5255 states and 24869 transitions. [2021-06-05 03:39:09,127 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:09,127 INFO L276 IsEmpty]: Start isEmpty. Operand 5255 states and 24869 transitions. [2021-06-05 03:39:09,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:09,136 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:09,136 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:09,136 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-06-05 03:39:09,136 INFO L430 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:09,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:09,136 INFO L82 PathProgramCache]: Analyzing trace with hash -662699641, now seen corresponding path program 36 times [2021-06-05 03:39:09,136 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:09,136 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174729070] [2021-06-05 03:39:09,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:09,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:09,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:09,314 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:09,314 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174729070] [2021-06-05 03:39:09,314 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174729070] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:09,314 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:09,314 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:09,314 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631243353] [2021-06-05 03:39:09,315 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:09,315 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:09,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:09,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:09,316 INFO L87 Difference]: Start difference. First operand 5255 states and 24869 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:09,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:09,425 INFO L93 Difference]: Finished difference Result 11315 states and 50311 transitions. [2021-06-05 03:39:09,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:09,425 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:09,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:09,451 INFO L225 Difference]: With dead ends: 11315 [2021-06-05 03:39:09,451 INFO L226 Difference]: Without dead ends: 10788 [2021-06-05 03:39:09,452 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 165.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:09,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10788 states. [2021-06-05 03:39:09,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10788 to 5143. [2021-06-05 03:39:09,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.755542590431738) internal successors, (24453), 5142 states have internal predecessors, (24453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:09,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24453 transitions. [2021-06-05 03:39:09,670 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24453 transitions. Word has length 29 [2021-06-05 03:39:09,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:09,670 INFO L482 AbstractCegarLoop]: Abstraction has 5143 states and 24453 transitions. [2021-06-05 03:39:09,670 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:09,670 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24453 transitions. [2021-06-05 03:39:09,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:09,678 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:09,678 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:09,678 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-06-05 03:39:09,679 INFO L430 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:09,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:09,679 INFO L82 PathProgramCache]: Analyzing trace with hash -1884187287, now seen corresponding path program 37 times [2021-06-05 03:39:09,679 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:09,679 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702786089] [2021-06-05 03:39:09,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:09,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:09,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:09,846 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:09,846 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702786089] [2021-06-05 03:39:09,846 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702786089] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:09,846 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:09,847 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:09,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888101098] [2021-06-05 03:39:09,847 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:09,847 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:09,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:09,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:09,847 INFO L87 Difference]: Start difference. First operand 5143 states and 24453 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:09,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:09,992 INFO L93 Difference]: Finished difference Result 11073 states and 49395 transitions. [2021-06-05 03:39:09,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:09,992 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:09,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:10,025 INFO L225 Difference]: With dead ends: 11073 [2021-06-05 03:39:10,025 INFO L226 Difference]: Without dead ends: 10658 [2021-06-05 03:39:10,026 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 179.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:10,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10658 states. [2021-06-05 03:39:10,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10658 to 5207. [2021-06-05 03:39:10,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5207 states, 5206 states have (on average 4.746254321936227) internal successors, (24709), 5206 states have internal predecessors, (24709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:10,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5207 states to 5207 states and 24709 transitions. [2021-06-05 03:39:10,326 INFO L78 Accepts]: Start accepts. Automaton has 5207 states and 24709 transitions. Word has length 29 [2021-06-05 03:39:10,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:10,326 INFO L482 AbstractCegarLoop]: Abstraction has 5207 states and 24709 transitions. [2021-06-05 03:39:10,326 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:10,326 INFO L276 IsEmpty]: Start isEmpty. Operand 5207 states and 24709 transitions. [2021-06-05 03:39:10,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:10,337 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:10,337 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:10,337 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-06-05 03:39:10,337 INFO L430 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:10,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:10,337 INFO L82 PathProgramCache]: Analyzing trace with hash -1167524341, now seen corresponding path program 38 times [2021-06-05 03:39:10,338 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:10,338 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021684982] [2021-06-05 03:39:10,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:10,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:10,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:10,506 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:10,506 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021684982] [2021-06-05 03:39:10,507 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021684982] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:10,507 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:10,507 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:10,507 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290915239] [2021-06-05 03:39:10,507 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:10,507 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:10,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:10,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:10,508 INFO L87 Difference]: Start difference. First operand 5207 states and 24709 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:10,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:10,670 INFO L93 Difference]: Finished difference Result 11135 states and 49616 transitions. [2021-06-05 03:39:10,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:10,671 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:10,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:10,703 INFO L225 Difference]: With dead ends: 11135 [2021-06-05 03:39:10,704 INFO L226 Difference]: Without dead ends: 10610 [2021-06-05 03:39:10,706 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 181.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:10,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10610 states. [2021-06-05 03:39:10,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10610 to 5159. [2021-06-05 03:39:10,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5159 states, 5158 states have (on average 4.7531989143078714) internal successors, (24517), 5158 states have internal predecessors, (24517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:10,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5159 states to 5159 states and 24517 transitions. [2021-06-05 03:39:10,960 INFO L78 Accepts]: Start accepts. Automaton has 5159 states and 24517 transitions. Word has length 29 [2021-06-05 03:39:10,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:10,961 INFO L482 AbstractCegarLoop]: Abstraction has 5159 states and 24517 transitions. [2021-06-05 03:39:10,961 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:10,961 INFO L276 IsEmpty]: Start isEmpty. Operand 5159 states and 24517 transitions. [2021-06-05 03:39:10,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:10,970 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:10,970 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:10,970 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-06-05 03:39:10,970 INFO L430 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:10,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:10,970 INFO L82 PathProgramCache]: Analyzing trace with hash 1929877963, now seen corresponding path program 39 times [2021-06-05 03:39:10,971 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:10,971 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939525367] [2021-06-05 03:39:10,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:10,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:11,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:11,119 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:11,119 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939525367] [2021-06-05 03:39:11,119 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939525367] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:11,119 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:11,119 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:11,119 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113831779] [2021-06-05 03:39:11,120 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:11,120 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:11,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:11,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:11,120 INFO L87 Difference]: Start difference. First operand 5159 states and 24517 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:11,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:11,255 INFO L93 Difference]: Finished difference Result 10995 states and 49030 transitions. [2021-06-05 03:39:11,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:11,255 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:11,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:11,283 INFO L225 Difference]: With dead ends: 10995 [2021-06-05 03:39:11,283 INFO L226 Difference]: Without dead ends: 10580 [2021-06-05 03:39:11,284 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 163.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:11,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10580 states. [2021-06-05 03:39:11,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10580 to 5191. [2021-06-05 03:39:11,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.745472061657033) internal successors, (24629), 5190 states have internal predecessors, (24629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:11,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24629 transitions. [2021-06-05 03:39:11,573 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24629 transitions. Word has length 29 [2021-06-05 03:39:11,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:11,573 INFO L482 AbstractCegarLoop]: Abstraction has 5191 states and 24629 transitions. [2021-06-05 03:39:11,573 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:11,573 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24629 transitions. [2021-06-05 03:39:11,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:11,582 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:11,582 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:11,582 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-06-05 03:39:11,582 INFO L430 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:11,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:11,583 INFO L82 PathProgramCache]: Analyzing trace with hash -1953681337, now seen corresponding path program 40 times [2021-06-05 03:39:11,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:11,583 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790454715] [2021-06-05 03:39:11,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:11,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:11,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:11,750 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:11,750 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790454715] [2021-06-05 03:39:11,750 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790454715] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:11,750 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:11,750 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:11,750 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025374155] [2021-06-05 03:39:11,751 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:11,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:11,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:11,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:11,751 INFO L87 Difference]: Start difference. First operand 5191 states and 24629 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:11,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:11,871 INFO L93 Difference]: Finished difference Result 10995 states and 48998 transitions. [2021-06-05 03:39:11,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:11,871 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:11,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:11,896 INFO L225 Difference]: With dead ends: 10995 [2021-06-05 03:39:11,897 INFO L226 Difference]: Without dead ends: 10548 [2021-06-05 03:39:11,897 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 162.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:12,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10548 states. [2021-06-05 03:39:12,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10548 to 5159. [2021-06-05 03:39:12,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5159 states, 5158 states have (on average 4.750096936797208) internal successors, (24501), 5158 states have internal predecessors, (24501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:12,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5159 states to 5159 states and 24501 transitions. [2021-06-05 03:39:12,113 INFO L78 Accepts]: Start accepts. Automaton has 5159 states and 24501 transitions. Word has length 29 [2021-06-05 03:39:12,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:12,114 INFO L482 AbstractCegarLoop]: Abstraction has 5159 states and 24501 transitions. [2021-06-05 03:39:12,114 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:12,114 INFO L276 IsEmpty]: Start isEmpty. Operand 5159 states and 24501 transitions. [2021-06-05 03:39:12,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:12,122 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:12,122 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:12,122 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-06-05 03:39:12,122 INFO L430 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:12,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:12,122 INFO L82 PathProgramCache]: Analyzing trace with hash -1817985849, now seen corresponding path program 41 times [2021-06-05 03:39:12,123 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:12,123 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584941776] [2021-06-05 03:39:12,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:12,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:12,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:12,287 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:12,287 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584941776] [2021-06-05 03:39:12,287 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584941776] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:12,287 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:12,287 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:12,287 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759313250] [2021-06-05 03:39:12,287 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:12,288 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:12,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:12,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:12,288 INFO L87 Difference]: Start difference. First operand 5159 states and 24501 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:12,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:12,409 INFO L93 Difference]: Finished difference Result 11135 states and 49632 transitions. [2021-06-05 03:39:12,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:12,409 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:12,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:12,435 INFO L225 Difference]: With dead ends: 11135 [2021-06-05 03:39:12,435 INFO L226 Difference]: Without dead ends: 10658 [2021-06-05 03:39:12,435 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 175.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:12,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10658 states. [2021-06-05 03:39:12,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10658 to 5207. [2021-06-05 03:39:12,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5207 states, 5206 states have (on average 4.74010756819055) internal successors, (24677), 5206 states have internal predecessors, (24677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:12,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5207 states to 5207 states and 24677 transitions. [2021-06-05 03:39:12,653 INFO L78 Accepts]: Start accepts. Automaton has 5207 states and 24677 transitions. Word has length 29 [2021-06-05 03:39:12,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:12,653 INFO L482 AbstractCegarLoop]: Abstraction has 5207 states and 24677 transitions. [2021-06-05 03:39:12,654 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:12,654 INFO L276 IsEmpty]: Start isEmpty. Operand 5207 states and 24677 transitions. [2021-06-05 03:39:12,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:12,662 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:12,662 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:12,662 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-06-05 03:39:12,663 INFO L430 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:12,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:12,663 INFO L82 PathProgramCache]: Analyzing trace with hash -736923223, now seen corresponding path program 42 times [2021-06-05 03:39:12,663 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:12,663 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789392599] [2021-06-05 03:39:12,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:12,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:12,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:12,826 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:12,826 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789392599] [2021-06-05 03:39:12,826 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789392599] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:12,826 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:12,826 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:12,826 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887505197] [2021-06-05 03:39:12,826 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:12,826 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:12,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:12,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:12,827 INFO L87 Difference]: Start difference. First operand 5207 states and 24677 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:12,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:12,929 INFO L93 Difference]: Finished difference Result 11073 states and 49315 transitions. [2021-06-05 03:39:12,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:12,929 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:12,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:12,956 INFO L225 Difference]: With dead ends: 11073 [2021-06-05 03:39:12,956 INFO L226 Difference]: Without dead ends: 10594 [2021-06-05 03:39:12,956 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 157.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:13,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10594 states. [2021-06-05 03:39:13,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10594 to 5143. [2021-06-05 03:39:13,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.753986775573707) internal successors, (24445), 5142 states have internal predecessors, (24445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:13,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24445 transitions. [2021-06-05 03:39:13,174 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24445 transitions. Word has length 29 [2021-06-05 03:39:13,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:13,174 INFO L482 AbstractCegarLoop]: Abstraction has 5143 states and 24445 transitions. [2021-06-05 03:39:13,174 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:13,174 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24445 transitions. [2021-06-05 03:39:13,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:13,183 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:13,183 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:13,183 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-06-05 03:39:13,183 INFO L430 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:13,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:13,183 INFO L82 PathProgramCache]: Analyzing trace with hash 789969189, now seen corresponding path program 43 times [2021-06-05 03:39:13,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:13,184 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708610100] [2021-06-05 03:39:13,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:13,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:13,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:13,339 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:13,339 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708610100] [2021-06-05 03:39:13,339 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708610100] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:13,339 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:13,339 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:13,339 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506806322] [2021-06-05 03:39:13,339 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:13,340 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:13,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:13,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:13,340 INFO L87 Difference]: Start difference. First operand 5143 states and 24445 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:13,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:13,464 INFO L93 Difference]: Finished difference Result 11732 states and 52192 transitions. [2021-06-05 03:39:13,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:13,464 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:13,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:13,499 INFO L225 Difference]: With dead ends: 11732 [2021-06-05 03:39:13,500 INFO L226 Difference]: Without dead ends: 11190 [2021-06-05 03:39:13,501 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 155.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:13,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11190 states. [2021-06-05 03:39:13,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11190 to 5342. [2021-06-05 03:39:13,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5342 states, 5341 states have (on average 4.7242089496349) internal successors, (25232), 5341 states have internal predecessors, (25232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:13,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5342 states to 5342 states and 25232 transitions. [2021-06-05 03:39:13,785 INFO L78 Accepts]: Start accepts. Automaton has 5342 states and 25232 transitions. Word has length 29 [2021-06-05 03:39:13,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:13,785 INFO L482 AbstractCegarLoop]: Abstraction has 5342 states and 25232 transitions. [2021-06-05 03:39:13,785 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:13,785 INFO L276 IsEmpty]: Start isEmpty. Operand 5342 states and 25232 transitions. [2021-06-05 03:39:13,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:13,794 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:13,794 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:13,794 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-06-05 03:39:13,794 INFO L430 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:13,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:13,795 INFO L82 PathProgramCache]: Analyzing trace with hash 1871031815, now seen corresponding path program 44 times [2021-06-05 03:39:13,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:13,795 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320870179] [2021-06-05 03:39:13,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:13,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:13,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:13,954 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:13,954 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320870179] [2021-06-05 03:39:13,954 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320870179] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:13,954 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:13,955 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:13,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041592157] [2021-06-05 03:39:13,955 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:13,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:13,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:13,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:13,955 INFO L87 Difference]: Start difference. First operand 5342 states and 25232 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:14,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:14,073 INFO L93 Difference]: Finished difference Result 11667 states and 51823 transitions. [2021-06-05 03:39:14,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:14,073 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:14,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:14,100 INFO L225 Difference]: With dead ends: 11667 [2021-06-05 03:39:14,101 INFO L226 Difference]: Without dead ends: 11047 [2021-06-05 03:39:14,101 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 162.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:14,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11047 states. [2021-06-05 03:39:14,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11047 to 5199. [2021-06-05 03:39:14,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5199 states, 5198 states have (on average 4.7435552135436705) internal successors, (24657), 5198 states have internal predecessors, (24657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:14,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5199 states to 5199 states and 24657 transitions. [2021-06-05 03:39:14,322 INFO L78 Accepts]: Start accepts. Automaton has 5199 states and 24657 transitions. Word has length 29 [2021-06-05 03:39:14,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:14,323 INFO L482 AbstractCegarLoop]: Abstraction has 5199 states and 24657 transitions. [2021-06-05 03:39:14,323 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:14,323 INFO L276 IsEmpty]: Start isEmpty. Operand 5199 states and 24657 transitions. [2021-06-05 03:39:14,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:14,332 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:14,332 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:14,333 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-06-05 03:39:14,333 INFO L430 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:14,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:14,333 INFO L82 PathProgramCache]: Analyzing trace with hash 309067143, now seen corresponding path program 45 times [2021-06-05 03:39:14,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:14,333 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305169596] [2021-06-05 03:39:14,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:14,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:14,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:14,498 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:14,498 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305169596] [2021-06-05 03:39:14,498 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305169596] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:14,498 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:14,498 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:14,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844706474] [2021-06-05 03:39:14,499 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:14,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:14,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:14,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:14,499 INFO L87 Difference]: Start difference. First operand 5199 states and 24657 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:14,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:14,636 INFO L93 Difference]: Finished difference Result 11607 states and 51605 transitions. [2021-06-05 03:39:14,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:14,636 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:14,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:14,670 INFO L225 Difference]: With dead ends: 11607 [2021-06-05 03:39:14,670 INFO L226 Difference]: Without dead ends: 11065 [2021-06-05 03:39:14,671 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 164.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:14,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11065 states. [2021-06-05 03:39:14,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11065 to 5279. [2021-06-05 03:39:14,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5279 states, 5278 states have (on average 4.726222053808261) internal successors, (24945), 5278 states have internal predecessors, (24945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:14,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5279 states to 5279 states and 24945 transitions. [2021-06-05 03:39:14,900 INFO L78 Accepts]: Start accepts. Automaton has 5279 states and 24945 transitions. Word has length 29 [2021-06-05 03:39:14,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:14,900 INFO L482 AbstractCegarLoop]: Abstraction has 5279 states and 24945 transitions. [2021-06-05 03:39:14,900 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:14,901 INFO L276 IsEmpty]: Start isEmpty. Operand 5279 states and 24945 transitions. [2021-06-05 03:39:14,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:14,909 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:14,909 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:14,909 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-06-05 03:39:14,909 INFO L430 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:14,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:14,910 INFO L82 PathProgramCache]: Analyzing trace with hash -1379179129, now seen corresponding path program 46 times [2021-06-05 03:39:14,910 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:14,910 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924550397] [2021-06-05 03:39:14,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:14,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:15,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:15,080 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:15,080 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924550397] [2021-06-05 03:39:15,080 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924550397] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:15,080 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:15,080 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:15,080 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591742716] [2021-06-05 03:39:15,081 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:15,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:15,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:15,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:15,081 INFO L87 Difference]: Start difference. First operand 5279 states and 24945 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:15,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:15,215 INFO L93 Difference]: Finished difference Result 11480 states and 50998 transitions. [2021-06-05 03:39:15,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:15,216 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:15,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:15,249 INFO L225 Difference]: With dead ends: 11480 [2021-06-05 03:39:15,250 INFO L226 Difference]: Without dead ends: 10985 [2021-06-05 03:39:15,250 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 169.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:15,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10985 states. [2021-06-05 03:39:15,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10985 to 5199. [2021-06-05 03:39:15,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5199 states, 5198 states have (on average 4.735859946133128) internal successors, (24617), 5198 states have internal predecessors, (24617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:15,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5199 states to 5199 states and 24617 transitions. [2021-06-05 03:39:15,552 INFO L78 Accepts]: Start accepts. Automaton has 5199 states and 24617 transitions. Word has length 29 [2021-06-05 03:39:15,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:15,552 INFO L482 AbstractCegarLoop]: Abstraction has 5199 states and 24617 transitions. [2021-06-05 03:39:15,552 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:15,552 INFO L276 IsEmpty]: Start isEmpty. Operand 5199 states and 24617 transitions. [2021-06-05 03:39:15,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:15,561 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:15,561 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:15,561 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-06-05 03:39:15,561 INFO L430 AbstractCegarLoop]: === Iteration 52 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:15,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:15,561 INFO L82 PathProgramCache]: Analyzing trace with hash 697072105, now seen corresponding path program 47 times [2021-06-05 03:39:15,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:15,561 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896690248] [2021-06-05 03:39:15,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:15,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:15,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:15,719 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:15,719 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896690248] [2021-06-05 03:39:15,719 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896690248] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:15,719 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:15,719 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:15,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060712409] [2021-06-05 03:39:15,719 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:15,719 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:15,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:15,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:15,720 INFO L87 Difference]: Start difference. First operand 5199 states and 24617 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:15,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:15,842 INFO L93 Difference]: Finished difference Result 11445 states and 50905 transitions. [2021-06-05 03:39:15,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:15,842 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:15,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:15,868 INFO L225 Difference]: With dead ends: 11445 [2021-06-05 03:39:15,869 INFO L226 Difference]: Without dead ends: 10968 [2021-06-05 03:39:15,869 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 173.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:15,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10968 states. [2021-06-05 03:39:16,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10968 to 5247. [2021-06-05 03:39:16,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5247 states, 5246 states have (on average 4.726077011056042) internal successors, (24793), 5246 states have internal predecessors, (24793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:16,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5247 states to 5247 states and 24793 transitions. [2021-06-05 03:39:16,090 INFO L78 Accepts]: Start accepts. Automaton has 5247 states and 24793 transitions. Word has length 29 [2021-06-05 03:39:16,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:16,091 INFO L482 AbstractCegarLoop]: Abstraction has 5247 states and 24793 transitions. [2021-06-05 03:39:16,091 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:16,091 INFO L276 IsEmpty]: Start isEmpty. Operand 5247 states and 24793 transitions. [2021-06-05 03:39:16,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:16,099 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:16,099 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:16,100 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-06-05 03:39:16,100 INFO L430 AbstractCegarLoop]: === Iteration 53 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:16,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:16,100 INFO L82 PathProgramCache]: Analyzing trace with hash -149724857, now seen corresponding path program 48 times [2021-06-05 03:39:16,100 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:16,100 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70919055] [2021-06-05 03:39:16,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:16,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:16,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:16,258 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:16,258 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70919055] [2021-06-05 03:39:16,258 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70919055] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:16,258 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:16,258 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:16,258 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940473040] [2021-06-05 03:39:16,259 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:16,259 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:16,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:16,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:16,260 INFO L87 Difference]: Start difference. First operand 5247 states and 24793 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:16,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:16,367 INFO L93 Difference]: Finished difference Result 11383 states and 50588 transitions. [2021-06-05 03:39:16,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:16,367 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:16,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:16,393 INFO L225 Difference]: With dead ends: 11383 [2021-06-05 03:39:16,394 INFO L226 Difference]: Without dead ends: 10840 [2021-06-05 03:39:16,395 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 157.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:16,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10840 states. [2021-06-05 03:39:16,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10840 to 5119. [2021-06-05 03:39:16,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5119 states, 5118 states have (on average 4.759085580304807) internal successors, (24357), 5118 states have internal predecessors, (24357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:16,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5119 states to 5119 states and 24357 transitions. [2021-06-05 03:39:16,614 INFO L78 Accepts]: Start accepts. Automaton has 5119 states and 24357 transitions. Word has length 29 [2021-06-05 03:39:16,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:16,614 INFO L482 AbstractCegarLoop]: Abstraction has 5119 states and 24357 transitions. [2021-06-05 03:39:16,614 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:16,614 INFO L276 IsEmpty]: Start isEmpty. Operand 5119 states and 24357 transitions. [2021-06-05 03:39:16,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:16,623 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:16,623 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:16,623 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-06-05 03:39:16,623 INFO L430 AbstractCegarLoop]: === Iteration 54 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:16,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:16,623 INFO L82 PathProgramCache]: Analyzing trace with hash -1690230837, now seen corresponding path program 49 times [2021-06-05 03:39:16,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:16,623 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177797069] [2021-06-05 03:39:16,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:16,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:16,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:16,774 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:16,774 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177797069] [2021-06-05 03:39:16,774 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177797069] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:16,774 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:16,774 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:16,774 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950024890] [2021-06-05 03:39:16,774 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:16,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:16,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:16,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:16,775 INFO L87 Difference]: Start difference. First operand 5119 states and 24357 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:16,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:16,908 INFO L93 Difference]: Finished difference Result 11240 states and 50167 transitions. [2021-06-05 03:39:16,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:16,909 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:16,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:16,935 INFO L225 Difference]: With dead ends: 11240 [2021-06-05 03:39:16,935 INFO L226 Difference]: Without dead ends: 10825 [2021-06-05 03:39:16,936 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 165.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:17,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10825 states. [2021-06-05 03:39:17,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10825 to 5247. [2021-06-05 03:39:17,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5247 states, 5246 states have (on average 4.751239039268014) internal successors, (24925), 5246 states have internal predecessors, (24925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:17,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5247 states to 5247 states and 24925 transitions. [2021-06-05 03:39:17,156 INFO L78 Accepts]: Start accepts. Automaton has 5247 states and 24925 transitions. Word has length 29 [2021-06-05 03:39:17,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:17,157 INFO L482 AbstractCegarLoop]: Abstraction has 5247 states and 24925 transitions. [2021-06-05 03:39:17,157 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:17,157 INFO L276 IsEmpty]: Start isEmpty. Operand 5247 states and 24925 transitions. [2021-06-05 03:39:17,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:17,166 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:17,166 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:17,166 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-06-05 03:39:17,166 INFO L430 AbstractCegarLoop]: === Iteration 55 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:17,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:17,166 INFO L82 PathProgramCache]: Analyzing trace with hash 64589771, now seen corresponding path program 50 times [2021-06-05 03:39:17,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:17,166 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008775836] [2021-06-05 03:39:17,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:17,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:17,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:17,337 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:17,337 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008775836] [2021-06-05 03:39:17,337 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008775836] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:17,337 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:17,337 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:17,337 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981989871] [2021-06-05 03:39:17,337 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:17,337 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:17,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:17,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:17,338 INFO L87 Difference]: Start difference. First operand 5247 states and 24925 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:17,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:17,457 INFO L93 Difference]: Finished difference Result 11367 states and 50646 transitions. [2021-06-05 03:39:17,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:17,458 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:17,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:17,491 INFO L225 Difference]: With dead ends: 11367 [2021-06-05 03:39:17,491 INFO L226 Difference]: Without dead ends: 10745 [2021-06-05 03:39:17,492 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 168.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:17,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10745 states. [2021-06-05 03:39:17,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10745 to 5167. [2021-06-05 03:39:17,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5167 states, 5166 states have (on average 4.756678281068525) internal successors, (24573), 5166 states have internal predecessors, (24573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:17,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 24573 transitions. [2021-06-05 03:39:17,713 INFO L78 Accepts]: Start accepts. Automaton has 5167 states and 24573 transitions. Word has length 29 [2021-06-05 03:39:17,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:17,713 INFO L482 AbstractCegarLoop]: Abstraction has 5167 states and 24573 transitions. [2021-06-05 03:39:17,713 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:17,713 INFO L276 IsEmpty]: Start isEmpty. Operand 5167 states and 24573 transitions. [2021-06-05 03:39:17,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:17,722 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:17,722 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:17,722 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-06-05 03:39:17,722 INFO L430 AbstractCegarLoop]: === Iteration 56 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:17,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:17,722 INFO L82 PathProgramCache]: Analyzing trace with hash -1605442839, now seen corresponding path program 51 times [2021-06-05 03:39:17,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:17,722 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857445493] [2021-06-05 03:39:17,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:17,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:17,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:17,882 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:17,882 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857445493] [2021-06-05 03:39:17,882 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857445493] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:17,882 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:17,882 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:17,882 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191449127] [2021-06-05 03:39:17,883 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:17,883 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:17,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:17,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:17,884 INFO L87 Difference]: Start difference. First operand 5167 states and 24573 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:18,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:18,058 INFO L93 Difference]: Finished difference Result 11065 states and 49384 transitions. [2021-06-05 03:39:18,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:18,058 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:18,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:18,092 INFO L225 Difference]: With dead ends: 11065 [2021-06-05 03:39:18,092 INFO L226 Difference]: Without dead ends: 10650 [2021-06-05 03:39:18,092 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 184.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:18,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10650 states. [2021-06-05 03:39:18,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10650 to 5199. [2021-06-05 03:39:18,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5199 states, 5198 states have (on average 4.74894190073105) internal successors, (24685), 5198 states have internal predecessors, (24685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:18,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5199 states to 5199 states and 24685 transitions. [2021-06-05 03:39:18,376 INFO L78 Accepts]: Start accepts. Automaton has 5199 states and 24685 transitions. Word has length 29 [2021-06-05 03:39:18,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:18,376 INFO L482 AbstractCegarLoop]: Abstraction has 5199 states and 24685 transitions. [2021-06-05 03:39:18,377 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:18,377 INFO L276 IsEmpty]: Start isEmpty. Operand 5199 states and 24685 transitions. [2021-06-05 03:39:18,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:18,386 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:18,386 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:18,386 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-06-05 03:39:18,386 INFO L430 AbstractCegarLoop]: === Iteration 57 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:18,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:18,387 INFO L82 PathProgramCache]: Analyzing trace with hash 287403463, now seen corresponding path program 52 times [2021-06-05 03:39:18,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:18,387 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615444531] [2021-06-05 03:39:18,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:18,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:18,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:18,568 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:18,568 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615444531] [2021-06-05 03:39:18,568 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615444531] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:18,568 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:18,568 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:18,568 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013004225] [2021-06-05 03:39:18,569 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:18,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:18,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:18,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:18,569 INFO L87 Difference]: Start difference. First operand 5199 states and 24685 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:18,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:18,712 INFO L93 Difference]: Finished difference Result 11065 states and 49352 transitions. [2021-06-05 03:39:18,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:18,713 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:18,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:18,746 INFO L225 Difference]: With dead ends: 11065 [2021-06-05 03:39:18,746 INFO L226 Difference]: Without dead ends: 10618 [2021-06-05 03:39:18,746 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 183.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:18,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10618 states. [2021-06-05 03:39:18,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10618 to 5167. [2021-06-05 03:39:18,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5167 states, 5166 states have (on average 4.753581107239643) internal successors, (24557), 5166 states have internal predecessors, (24557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:19,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 24557 transitions. [2021-06-05 03:39:19,014 INFO L78 Accepts]: Start accepts. Automaton has 5167 states and 24557 transitions. Word has length 29 [2021-06-05 03:39:19,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:19,014 INFO L482 AbstractCegarLoop]: Abstraction has 5167 states and 24557 transitions. [2021-06-05 03:39:19,014 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:19,014 INFO L276 IsEmpty]: Start isEmpty. Operand 5167 states and 24557 transitions. [2021-06-05 03:39:19,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:19,023 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:19,023 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:19,023 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-06-05 03:39:19,023 INFO L430 AbstractCegarLoop]: === Iteration 58 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:19,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:19,023 INFO L82 PathProgramCache]: Analyzing trace with hash 1009007013, now seen corresponding path program 53 times [2021-06-05 03:39:19,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:19,024 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138488626] [2021-06-05 03:39:19,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:19,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:19,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:19,179 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:19,180 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138488626] [2021-06-05 03:39:19,180 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138488626] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:19,180 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:19,180 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:19,180 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272245392] [2021-06-05 03:39:19,180 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:19,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:19,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:19,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:19,180 INFO L87 Difference]: Start difference. First operand 5167 states and 24557 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:19,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:19,282 INFO L93 Difference]: Finished difference Result 11367 states and 50646 transitions. [2021-06-05 03:39:19,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:19,283 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:19,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:19,309 INFO L225 Difference]: With dead ends: 11367 [2021-06-05 03:39:19,309 INFO L226 Difference]: Without dead ends: 10825 [2021-06-05 03:39:19,310 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 149.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:19,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10825 states. [2021-06-05 03:39:19,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10825 to 5247. [2021-06-05 03:39:19,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5247 states, 5246 states have (on average 4.735989325200152) internal successors, (24845), 5246 states have internal predecessors, (24845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:19,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5247 states to 5247 states and 24845 transitions. [2021-06-05 03:39:19,533 INFO L78 Accepts]: Start accepts. Automaton has 5247 states and 24845 transitions. Word has length 29 [2021-06-05 03:39:19,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:19,533 INFO L482 AbstractCegarLoop]: Abstraction has 5247 states and 24845 transitions. [2021-06-05 03:39:19,533 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:19,533 INFO L276 IsEmpty]: Start isEmpty. Operand 5247 states and 24845 transitions. [2021-06-05 03:39:19,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:19,542 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:19,542 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:19,543 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-06-05 03:39:19,543 INFO L430 AbstractCegarLoop]: === Iteration 59 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:19,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:19,543 INFO L82 PathProgramCache]: Analyzing trace with hash 802199047, now seen corresponding path program 54 times [2021-06-05 03:39:19,543 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:19,543 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412307145] [2021-06-05 03:39:19,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:19,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:19,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:19,704 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:19,704 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412307145] [2021-06-05 03:39:19,705 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412307145] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:19,705 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:19,705 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:19,705 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128276722] [2021-06-05 03:39:19,705 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:19,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:19,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:19,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:19,705 INFO L87 Difference]: Start difference. First operand 5247 states and 24845 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:19,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:19,812 INFO L93 Difference]: Finished difference Result 11240 states and 50039 transitions. [2021-06-05 03:39:19,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:19,813 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:19,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:19,839 INFO L225 Difference]: With dead ends: 11240 [2021-06-05 03:39:19,839 INFO L226 Difference]: Without dead ends: 10713 [2021-06-05 03:39:19,839 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 159.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:19,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10713 states. [2021-06-05 03:39:20,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10713 to 5135. [2021-06-05 03:39:20,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5135 states, 5134 states have (on average 4.758278145695364) internal successors, (24429), 5134 states have internal predecessors, (24429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:20,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5135 states to 5135 states and 24429 transitions. [2021-06-05 03:39:20,059 INFO L78 Accepts]: Start accepts. Automaton has 5135 states and 24429 transitions. Word has length 29 [2021-06-05 03:39:20,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:20,059 INFO L482 AbstractCegarLoop]: Abstraction has 5135 states and 24429 transitions. [2021-06-05 03:39:20,060 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:20,060 INFO L276 IsEmpty]: Start isEmpty. Operand 5135 states and 24429 transitions. [2021-06-05 03:39:20,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:20,068 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:20,068 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:20,068 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-06-05 03:39:20,068 INFO L430 AbstractCegarLoop]: === Iteration 60 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:20,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:20,069 INFO L82 PathProgramCache]: Analyzing trace with hash -232183767, now seen corresponding path program 55 times [2021-06-05 03:39:20,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:20,069 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109937301] [2021-06-05 03:39:20,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:20,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:20,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:20,229 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:20,229 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109937301] [2021-06-05 03:39:20,229 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109937301] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:20,229 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:20,229 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:20,229 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123824404] [2021-06-05 03:39:20,230 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:20,230 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:20,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:20,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:20,230 INFO L87 Difference]: Start difference. First operand 5135 states and 24429 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:20,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:20,343 INFO L93 Difference]: Finished difference Result 11354 states and 50686 transitions. [2021-06-05 03:39:20,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:20,343 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:20,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:20,371 INFO L225 Difference]: With dead ends: 11354 [2021-06-05 03:39:20,371 INFO L226 Difference]: Without dead ends: 10939 [2021-06-05 03:39:20,371 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 167.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:20,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10939 states. [2021-06-05 03:39:20,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10939 to 5255. [2021-06-05 03:39:20,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5255 states, 5254 states have (on average 4.7493338408831365) internal successors, (24953), 5254 states have internal predecessors, (24953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:20,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5255 states to 5255 states and 24953 transitions. [2021-06-05 03:39:20,597 INFO L78 Accepts]: Start accepts. Automaton has 5255 states and 24953 transitions. Word has length 29 [2021-06-05 03:39:20,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:20,598 INFO L482 AbstractCegarLoop]: Abstraction has 5255 states and 24953 transitions. [2021-06-05 03:39:20,598 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:20,598 INFO L276 IsEmpty]: Start isEmpty. Operand 5255 states and 24953 transitions. [2021-06-05 03:39:20,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:20,607 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:20,607 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:20,607 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-06-05 03:39:20,607 INFO L430 AbstractCegarLoop]: === Iteration 61 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:20,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:20,607 INFO L82 PathProgramCache]: Analyzing trace with hash 1522636841, now seen corresponding path program 56 times [2021-06-05 03:39:20,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:20,607 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463775981] [2021-06-05 03:39:20,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:20,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:20,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:20,762 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:20,762 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463775981] [2021-06-05 03:39:20,762 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463775981] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:20,762 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:20,762 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:20,762 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603441582] [2021-06-05 03:39:20,762 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:20,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:20,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:20,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:20,763 INFO L87 Difference]: Start difference. First operand 5255 states and 24953 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:20,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:20,860 INFO L93 Difference]: Finished difference Result 11481 states and 51165 transitions. [2021-06-05 03:39:20,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:20,860 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:20,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:20,887 INFO L225 Difference]: With dead ends: 11481 [2021-06-05 03:39:20,888 INFO L226 Difference]: Without dead ends: 10859 [2021-06-05 03:39:20,888 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 148.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:20,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10859 states. [2021-06-05 03:39:21,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10859 to 5175. [2021-06-05 03:39:21,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5175 states, 5174 states have (on average 4.753189022033244) internal successors, (24593), 5174 states have internal predecessors, (24593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:21,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5175 states to 5175 states and 24593 transitions. [2021-06-05 03:39:21,110 INFO L78 Accepts]: Start accepts. Automaton has 5175 states and 24593 transitions. Word has length 29 [2021-06-05 03:39:21,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:21,111 INFO L482 AbstractCegarLoop]: Abstraction has 5175 states and 24593 transitions. [2021-06-05 03:39:21,111 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:21,111 INFO L276 IsEmpty]: Start isEmpty. Operand 5175 states and 24593 transitions. [2021-06-05 03:39:21,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:21,119 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:21,119 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:21,120 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-06-05 03:39:21,120 INFO L430 AbstractCegarLoop]: === Iteration 62 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:21,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:21,120 INFO L82 PathProgramCache]: Analyzing trace with hash -564327575, now seen corresponding path program 57 times [2021-06-05 03:39:21,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:21,120 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087024883] [2021-06-05 03:39:21,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:21,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:21,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:21,301 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:21,301 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087024883] [2021-06-05 03:39:21,302 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087024883] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:21,302 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:21,302 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:21,302 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193953774] [2021-06-05 03:39:21,302 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:21,302 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:21,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:21,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:21,302 INFO L87 Difference]: Start difference. First operand 5175 states and 24593 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:21,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:21,445 INFO L93 Difference]: Finished difference Result 11255 states and 50239 transitions. [2021-06-05 03:39:21,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:21,445 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:21,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:21,472 INFO L225 Difference]: With dead ends: 11255 [2021-06-05 03:39:21,472 INFO L226 Difference]: Without dead ends: 10840 [2021-06-05 03:39:21,472 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 194.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:21,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10840 states. [2021-06-05 03:39:21,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10840 to 5223. [2021-06-05 03:39:21,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5223 states, 5222 states have (on average 4.743201838376101) internal successors, (24769), 5222 states have internal predecessors, (24769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:21,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5223 states to 5223 states and 24769 transitions. [2021-06-05 03:39:21,694 INFO L78 Accepts]: Start accepts. Automaton has 5223 states and 24769 transitions. Word has length 29 [2021-06-05 03:39:21,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:21,694 INFO L482 AbstractCegarLoop]: Abstraction has 5223 states and 24769 transitions. [2021-06-05 03:39:21,694 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:21,694 INFO L276 IsEmpty]: Start isEmpty. Operand 5223 states and 24769 transitions. [2021-06-05 03:39:21,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:21,703 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:21,703 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:21,703 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-06-05 03:39:21,703 INFO L430 AbstractCegarLoop]: === Iteration 63 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:21,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:21,704 INFO L82 PathProgramCache]: Analyzing trace with hash -1079008501, now seen corresponding path program 58 times [2021-06-05 03:39:21,704 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:21,704 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988693652] [2021-06-05 03:39:21,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:21,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:21,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:21,865 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:21,865 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988693652] [2021-06-05 03:39:21,865 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988693652] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:21,865 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:21,866 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:21,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160548621] [2021-06-05 03:39:21,866 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:21,866 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:21,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:21,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:21,866 INFO L87 Difference]: Start difference. First operand 5223 states and 24769 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:22,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:22,063 INFO L93 Difference]: Finished difference Result 11315 states and 50455 transitions. [2021-06-05 03:39:22,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:22,064 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:22,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:22,092 INFO L225 Difference]: With dead ends: 11315 [2021-06-05 03:39:22,092 INFO L226 Difference]: Without dead ends: 10792 [2021-06-05 03:39:22,093 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 184.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:22,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10792 states. [2021-06-05 03:39:22,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10792 to 5175. [2021-06-05 03:39:22,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5175 states, 5174 states have (on average 4.748550444530344) internal successors, (24569), 5174 states have internal predecessors, (24569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:22,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5175 states to 5175 states and 24569 transitions. [2021-06-05 03:39:22,314 INFO L78 Accepts]: Start accepts. Automaton has 5175 states and 24569 transitions. Word has length 29 [2021-06-05 03:39:22,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:22,314 INFO L482 AbstractCegarLoop]: Abstraction has 5175 states and 24569 transitions. [2021-06-05 03:39:22,314 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:22,315 INFO L276 IsEmpty]: Start isEmpty. Operand 5175 states and 24569 transitions. [2021-06-05 03:39:22,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:22,323 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:22,323 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:22,324 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-06-05 03:39:22,324 INFO L430 AbstractCegarLoop]: === Iteration 64 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:22,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:22,324 INFO L82 PathProgramCache]: Analyzing trace with hash -340180213, now seen corresponding path program 59 times [2021-06-05 03:39:22,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:22,324 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080309562] [2021-06-05 03:39:22,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:22,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:22,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:22,463 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:22,463 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080309562] [2021-06-05 03:39:22,464 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080309562] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:22,464 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:22,464 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:22,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598405865] [2021-06-05 03:39:22,464 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:22,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:22,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:22,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:22,465 INFO L87 Difference]: Start difference. First operand 5175 states and 24569 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:22,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:22,565 INFO L93 Difference]: Finished difference Result 11571 states and 51560 transitions. [2021-06-05 03:39:22,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:22,566 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:22,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:22,594 INFO L225 Difference]: With dead ends: 11571 [2021-06-05 03:39:22,594 INFO L226 Difference]: Without dead ends: 11029 [2021-06-05 03:39:22,594 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 138.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:22,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11029 states. [2021-06-05 03:39:22,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11029 to 5285. [2021-06-05 03:39:22,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5285 states, 5284 states have (on average 4.726343679031037) internal successors, (24974), 5284 states have internal predecessors, (24974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:22,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5285 states to 5285 states and 24974 transitions. [2021-06-05 03:39:22,819 INFO L78 Accepts]: Start accepts. Automaton has 5285 states and 24974 transitions. Word has length 29 [2021-06-05 03:39:22,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:22,819 INFO L482 AbstractCegarLoop]: Abstraction has 5285 states and 24974 transitions. [2021-06-05 03:39:22,819 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:22,820 INFO L276 IsEmpty]: Start isEmpty. Operand 5285 states and 24974 transitions. [2021-06-05 03:39:22,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:22,829 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:22,829 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:22,829 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-06-05 03:39:22,829 INFO L430 AbstractCegarLoop]: === Iteration 65 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:22,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:22,829 INFO L82 PathProgramCache]: Analyzing trace with hash -1081132311, now seen corresponding path program 60 times [2021-06-05 03:39:22,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:22,829 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616806876] [2021-06-05 03:39:22,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:22,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:22,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:22,980 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:22,980 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616806876] [2021-06-05 03:39:22,980 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616806876] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:22,980 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:22,981 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:22,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124610292] [2021-06-05 03:39:22,981 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:22,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:22,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:22,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:22,982 INFO L87 Difference]: Start difference. First operand 5285 states and 24974 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:23,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:23,108 INFO L93 Difference]: Finished difference Result 11504 states and 51187 transitions. [2021-06-05 03:39:23,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:23,108 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:23,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:23,136 INFO L225 Difference]: With dead ends: 11504 [2021-06-05 03:39:23,136 INFO L226 Difference]: Without dead ends: 10879 [2021-06-05 03:39:23,136 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 161.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:23,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10879 states. [2021-06-05 03:39:23,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10879 to 5135. [2021-06-05 03:39:23,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5135 states, 5134 states have (on average 4.755161667315933) internal successors, (24413), 5134 states have internal predecessors, (24413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:23,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5135 states to 5135 states and 24413 transitions. [2021-06-05 03:39:23,358 INFO L78 Accepts]: Start accepts. Automaton has 5135 states and 24413 transitions. Word has length 29 [2021-06-05 03:39:23,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:23,358 INFO L482 AbstractCegarLoop]: Abstraction has 5135 states and 24413 transitions. [2021-06-05 03:39:23,358 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:23,358 INFO L276 IsEmpty]: Start isEmpty. Operand 5135 states and 24413 transitions. [2021-06-05 03:39:23,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:23,367 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:23,367 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:23,367 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-06-05 03:39:23,367 INFO L430 AbstractCegarLoop]: === Iteration 66 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:23,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:23,367 INFO L82 PathProgramCache]: Analyzing trace with hash 1274900231, now seen corresponding path program 61 times [2021-06-05 03:39:23,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:23,367 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735306288] [2021-06-05 03:39:23,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:23,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:23,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:23,526 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:23,526 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735306288] [2021-06-05 03:39:23,526 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735306288] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:23,526 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:23,527 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:23,527 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814233905] [2021-06-05 03:39:23,527 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:23,527 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:23,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:23,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:23,527 INFO L87 Difference]: Start difference. First operand 5135 states and 24413 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:23,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:23,664 INFO L93 Difference]: Finished difference Result 10918 states and 48753 transitions. [2021-06-05 03:39:23,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:23,664 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:23,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:23,690 INFO L225 Difference]: With dead ends: 10918 [2021-06-05 03:39:23,690 INFO L226 Difference]: Without dead ends: 10503 [2021-06-05 03:39:23,691 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 180.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:23,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10503 states. [2021-06-05 03:39:23,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10503 to 5183. [2021-06-05 03:39:23,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5183 states, 5182 states have (on average 4.748166730991895) internal successors, (24605), 5182 states have internal predecessors, (24605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:23,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5183 states to 5183 states and 24605 transitions. [2021-06-05 03:39:23,909 INFO L78 Accepts]: Start accepts. Automaton has 5183 states and 24605 transitions. Word has length 29 [2021-06-05 03:39:23,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:23,910 INFO L482 AbstractCegarLoop]: Abstraction has 5183 states and 24605 transitions. [2021-06-05 03:39:23,910 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:23,910 INFO L276 IsEmpty]: Start isEmpty. Operand 5183 states and 24605 transitions. [2021-06-05 03:39:23,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:23,918 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:23,918 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:23,918 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-06-05 03:39:23,919 INFO L430 AbstractCegarLoop]: === Iteration 67 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:23,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:23,919 INFO L82 PathProgramCache]: Analyzing trace with hash -1127220763, now seen corresponding path program 62 times [2021-06-05 03:39:23,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:23,919 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900070489] [2021-06-05 03:39:23,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:23,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:24,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:24,057 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:24,057 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900070489] [2021-06-05 03:39:24,057 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900070489] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:24,057 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:24,057 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:24,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252431015] [2021-06-05 03:39:24,057 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:24,057 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:24,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:24,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:24,057 INFO L87 Difference]: Start difference. First operand 5183 states and 24605 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:24,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:24,158 INFO L93 Difference]: Finished difference Result 10918 states and 48721 transitions. [2021-06-05 03:39:24,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:24,159 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:24,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:24,184 INFO L225 Difference]: With dead ends: 10918 [2021-06-05 03:39:24,184 INFO L226 Difference]: Without dead ends: 10471 [2021-06-05 03:39:24,185 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 140.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:24,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10471 states. [2021-06-05 03:39:24,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10471 to 5151. [2021-06-05 03:39:24,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5151 states, 5150 states have (on average 4.752815533980582) internal successors, (24477), 5150 states have internal predecessors, (24477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:24,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5151 states to 5151 states and 24477 transitions. [2021-06-05 03:39:24,402 INFO L78 Accepts]: Start accepts. Automaton has 5151 states and 24477 transitions. Word has length 29 [2021-06-05 03:39:24,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:24,402 INFO L482 AbstractCegarLoop]: Abstraction has 5151 states and 24477 transitions. [2021-06-05 03:39:24,402 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:24,403 INFO L276 IsEmpty]: Start isEmpty. Operand 5151 states and 24477 transitions. [2021-06-05 03:39:24,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:24,411 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:24,411 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:24,411 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-06-05 03:39:24,411 INFO L430 AbstractCegarLoop]: === Iteration 68 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:24,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:24,412 INFO L82 PathProgramCache]: Analyzing trace with hash 793998185, now seen corresponding path program 63 times [2021-06-05 03:39:24,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:24,412 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632658311] [2021-06-05 03:39:24,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:24,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:24,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:24,582 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:24,583 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632658311] [2021-06-05 03:39:24,583 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632658311] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:24,583 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:24,583 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:24,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165650108] [2021-06-05 03:39:24,583 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:24,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:24,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:24,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:24,583 INFO L87 Difference]: Start difference. First operand 5151 states and 24477 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:24,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:24,715 INFO L93 Difference]: Finished difference Result 10994 states and 49081 transitions. [2021-06-05 03:39:24,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:24,715 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:24,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:24,741 INFO L225 Difference]: With dead ends: 10994 [2021-06-05 03:39:24,741 INFO L226 Difference]: Without dead ends: 10579 [2021-06-05 03:39:24,741 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 184.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:24,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10579 states. [2021-06-05 03:39:24,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10579 to 5199. [2021-06-05 03:39:24,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5199 states, 5198 states have (on average 4.742785686802616) internal successors, (24653), 5198 states have internal predecessors, (24653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:24,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5199 states to 5199 states and 24653 transitions. [2021-06-05 03:39:24,959 INFO L78 Accepts]: Start accepts. Automaton has 5199 states and 24653 transitions. Word has length 29 [2021-06-05 03:39:24,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:24,959 INFO L482 AbstractCegarLoop]: Abstraction has 5199 states and 24653 transitions. [2021-06-05 03:39:24,959 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:24,959 INFO L276 IsEmpty]: Start isEmpty. Operand 5199 states and 24653 transitions. [2021-06-05 03:39:24,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:24,968 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:24,968 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:24,968 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-06-05 03:39:24,968 INFO L430 AbstractCegarLoop]: === Iteration 69 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:24,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:24,968 INFO L82 PathProgramCache]: Analyzing trace with hash -1202121047, now seen corresponding path program 64 times [2021-06-05 03:39:24,968 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:24,968 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641463524] [2021-06-05 03:39:24,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:24,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:25,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:25,139 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:25,139 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641463524] [2021-06-05 03:39:25,139 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641463524] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:25,139 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:25,139 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:25,139 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303376534] [2021-06-05 03:39:25,139 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:25,139 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:25,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:25,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:25,140 INFO L87 Difference]: Start difference. First operand 5199 states and 24653 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:25,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:25,275 INFO L93 Difference]: Finished difference Result 11054 states and 49297 transitions. [2021-06-05 03:39:25,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:25,275 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:25,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:25,302 INFO L225 Difference]: With dead ends: 11054 [2021-06-05 03:39:25,302 INFO L226 Difference]: Without dead ends: 10531 [2021-06-05 03:39:25,302 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 187.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:25,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10531 states. [2021-06-05 03:39:25,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10531 to 5151. [2021-06-05 03:39:25,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5151 states, 5150 states have (on average 4.749708737864077) internal successors, (24461), 5150 states have internal predecessors, (24461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:25,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5151 states to 5151 states and 24461 transitions. [2021-06-05 03:39:25,520 INFO L78 Accepts]: Start accepts. Automaton has 5151 states and 24461 transitions. Word has length 29 [2021-06-05 03:39:25,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:25,520 INFO L482 AbstractCegarLoop]: Abstraction has 5151 states and 24461 transitions. [2021-06-05 03:39:25,520 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:25,520 INFO L276 IsEmpty]: Start isEmpty. Operand 5151 states and 24461 transitions. [2021-06-05 03:39:25,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:25,529 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:25,529 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:25,529 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-06-05 03:39:25,529 INFO L430 AbstractCegarLoop]: === Iteration 70 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:25,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:25,529 INFO L82 PathProgramCache]: Analyzing trace with hash -1257916827, now seen corresponding path program 65 times [2021-06-05 03:39:25,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:25,529 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575960522] [2021-06-05 03:39:25,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:25,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:25,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:25,688 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:25,688 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575960522] [2021-06-05 03:39:25,688 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575960522] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:25,688 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:25,688 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:25,688 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851391801] [2021-06-05 03:39:25,688 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:25,688 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:25,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:25,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:25,689 INFO L87 Difference]: Start difference. First operand 5151 states and 24461 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:25,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:25,792 INFO L93 Difference]: Finished difference Result 10994 states and 49065 transitions. [2021-06-05 03:39:25,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:25,792 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:25,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:25,818 INFO L225 Difference]: With dead ends: 10994 [2021-06-05 03:39:25,818 INFO L226 Difference]: Without dead ends: 10579 [2021-06-05 03:39:25,818 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 157.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:25,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10579 states. [2021-06-05 03:39:26,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10579 to 5199. [2021-06-05 03:39:26,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5199 states, 5198 states have (on average 4.7397075798384) internal successors, (24637), 5198 states have internal predecessors, (24637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:26,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5199 states to 5199 states and 24637 transitions. [2021-06-05 03:39:26,037 INFO L78 Accepts]: Start accepts. Automaton has 5199 states and 24637 transitions. Word has length 29 [2021-06-05 03:39:26,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:26,038 INFO L482 AbstractCegarLoop]: Abstraction has 5199 states and 24637 transitions. [2021-06-05 03:39:26,038 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:26,038 INFO L276 IsEmpty]: Start isEmpty. Operand 5199 states and 24637 transitions. [2021-06-05 03:39:26,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:26,047 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:26,047 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:26,047 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-06-05 03:39:26,047 INFO L430 AbstractCegarLoop]: === Iteration 71 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:26,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:26,047 INFO L82 PathProgramCache]: Analyzing trace with hash -176854201, now seen corresponding path program 66 times [2021-06-05 03:39:26,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:26,047 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017982346] [2021-06-05 03:39:26,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:26,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:26,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:26,224 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:26,224 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017982346] [2021-06-05 03:39:26,224 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017982346] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:26,224 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:26,224 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:26,224 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202020976] [2021-06-05 03:39:26,224 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:26,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:26,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:26,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:26,225 INFO L87 Difference]: Start difference. First operand 5199 states and 24637 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:26,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:26,345 INFO L93 Difference]: Finished difference Result 11054 states and 49281 transitions. [2021-06-05 03:39:26,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:26,345 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:26,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:26,371 INFO L225 Difference]: With dead ends: 11054 [2021-06-05 03:39:26,371 INFO L226 Difference]: Without dead ends: 10515 [2021-06-05 03:39:26,371 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 179.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:26,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10515 states. [2021-06-05 03:39:26,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10515 to 5135. [2021-06-05 03:39:26,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5135 states, 5134 states have (on average 4.753603428126217) internal successors, (24405), 5134 states have internal predecessors, (24405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:26,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5135 states to 5135 states and 24405 transitions. [2021-06-05 03:39:26,589 INFO L78 Accepts]: Start accepts. Automaton has 5135 states and 24405 transitions. Word has length 29 [2021-06-05 03:39:26,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:26,589 INFO L482 AbstractCegarLoop]: Abstraction has 5135 states and 24405 transitions. [2021-06-05 03:39:26,589 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:26,589 INFO L276 IsEmpty]: Start isEmpty. Operand 5135 states and 24405 transitions. [2021-06-05 03:39:26,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:26,597 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:26,598 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:26,598 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-06-05 03:39:26,598 INFO L430 AbstractCegarLoop]: === Iteration 72 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:26,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:26,598 INFO L82 PathProgramCache]: Analyzing trace with hash -345910589, now seen corresponding path program 67 times [2021-06-05 03:39:26,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:26,598 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034684003] [2021-06-05 03:39:26,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:26,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:26,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:26,748 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:26,748 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034684003] [2021-06-05 03:39:26,748 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034684003] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:26,748 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:26,748 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:26,748 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877240933] [2021-06-05 03:39:26,748 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:26,748 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:26,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:26,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:26,749 INFO L87 Difference]: Start difference. First operand 5135 states and 24405 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:26,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:26,857 INFO L93 Difference]: Finished difference Result 11481 states and 51189 transitions. [2021-06-05 03:39:26,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:26,857 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:26,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:26,884 INFO L225 Difference]: With dead ends: 11481 [2021-06-05 03:39:26,884 INFO L226 Difference]: Without dead ends: 10939 [2021-06-05 03:39:26,884 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 150.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:26,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10939 states. [2021-06-05 03:39:27,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10939 to 5255. [2021-06-05 03:39:27,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5255 states, 5254 states have (on average 4.738675295013323) internal successors, (24897), 5254 states have internal predecessors, (24897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:27,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5255 states to 5255 states and 24897 transitions. [2021-06-05 03:39:27,107 INFO L78 Accepts]: Start accepts. Automaton has 5255 states and 24897 transitions. Word has length 29 [2021-06-05 03:39:27,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:27,107 INFO L482 AbstractCegarLoop]: Abstraction has 5255 states and 24897 transitions. [2021-06-05 03:39:27,107 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:27,107 INFO L276 IsEmpty]: Start isEmpty. Operand 5255 states and 24897 transitions. [2021-06-05 03:39:27,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:27,116 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:27,116 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:27,116 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2021-06-05 03:39:27,116 INFO L430 AbstractCegarLoop]: === Iteration 73 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:27,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:27,117 INFO L82 PathProgramCache]: Analyzing trace with hash -552718555, now seen corresponding path program 68 times [2021-06-05 03:39:27,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:27,117 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502745758] [2021-06-05 03:39:27,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:27,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:27,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:27,259 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:27,259 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502745758] [2021-06-05 03:39:27,259 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502745758] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:27,259 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:27,259 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:27,259 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035437356] [2021-06-05 03:39:27,259 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:27,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:27,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:27,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:27,260 INFO L87 Difference]: Start difference. First operand 5255 states and 24897 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:27,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:27,361 INFO L93 Difference]: Finished difference Result 11354 states and 50582 transitions. [2021-06-05 03:39:27,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:27,361 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:27,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:27,387 INFO L225 Difference]: With dead ends: 11354 [2021-06-05 03:39:27,388 INFO L226 Difference]: Without dead ends: 10859 [2021-06-05 03:39:27,388 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 144.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:27,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10859 states. [2021-06-05 03:39:27,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10859 to 5175. [2021-06-05 03:39:27,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5175 states, 5174 states have (on average 4.748550444530344) internal successors, (24569), 5174 states have internal predecessors, (24569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:27,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5175 states to 5175 states and 24569 transitions. [2021-06-05 03:39:27,609 INFO L78 Accepts]: Start accepts. Automaton has 5175 states and 24569 transitions. Word has length 29 [2021-06-05 03:39:27,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:27,609 INFO L482 AbstractCegarLoop]: Abstraction has 5175 states and 24569 transitions. [2021-06-05 03:39:27,609 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:27,609 INFO L276 IsEmpty]: Start isEmpty. Operand 5175 states and 24569 transitions. [2021-06-05 03:39:27,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:27,618 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:27,618 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:27,618 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2021-06-05 03:39:27,618 INFO L430 AbstractCegarLoop]: === Iteration 74 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:27,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:27,618 INFO L82 PathProgramCache]: Analyzing trace with hash -826812635, now seen corresponding path program 69 times [2021-06-05 03:39:27,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:27,619 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093684821] [2021-06-05 03:39:27,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:27,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:27,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:27,773 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:27,773 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093684821] [2021-06-05 03:39:27,773 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093684821] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:27,773 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:27,773 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:27,773 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793175859] [2021-06-05 03:39:27,773 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:27,773 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:27,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:27,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:27,774 INFO L87 Difference]: Start difference. First operand 5175 states and 24569 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:27,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:27,870 INFO L93 Difference]: Finished difference Result 11571 states and 51560 transitions. [2021-06-05 03:39:27,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:27,870 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:27,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:27,897 INFO L225 Difference]: With dead ends: 11571 [2021-06-05 03:39:27,897 INFO L226 Difference]: Without dead ends: 11029 [2021-06-05 03:39:27,898 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 149.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:28,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11029 states. [2021-06-05 03:39:28,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11029 to 5285. [2021-06-05 03:39:28,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5285 states, 5284 states have (on average 4.726343679031037) internal successors, (24974), 5284 states have internal predecessors, (24974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:28,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5285 states to 5285 states and 24974 transitions. [2021-06-05 03:39:28,122 INFO L78 Accepts]: Start accepts. Automaton has 5285 states and 24974 transitions. Word has length 29 [2021-06-05 03:39:28,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:28,122 INFO L482 AbstractCegarLoop]: Abstraction has 5285 states and 24974 transitions. [2021-06-05 03:39:28,122 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:28,122 INFO L276 IsEmpty]: Start isEmpty. Operand 5285 states and 24974 transitions. [2021-06-05 03:39:28,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:28,131 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:28,131 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:28,131 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-06-05 03:39:28,131 INFO L430 AbstractCegarLoop]: === Iteration 75 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:28,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:28,131 INFO L82 PathProgramCache]: Analyzing trace with hash 492037797, now seen corresponding path program 70 times [2021-06-05 03:39:28,131 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:28,131 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888266874] [2021-06-05 03:39:28,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:28,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:28,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:28,266 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:28,266 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888266874] [2021-06-05 03:39:28,266 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888266874] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:28,266 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:28,266 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:28,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605243139] [2021-06-05 03:39:28,267 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:28,267 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:28,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:28,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:28,267 INFO L87 Difference]: Start difference. First operand 5285 states and 24974 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:28,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:28,430 INFO L93 Difference]: Finished difference Result 11504 states and 51187 transitions. [2021-06-05 03:39:28,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:28,430 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:28,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:28,458 INFO L225 Difference]: With dead ends: 11504 [2021-06-05 03:39:28,459 INFO L226 Difference]: Without dead ends: 10919 [2021-06-05 03:39:28,459 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 167.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:28,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10919 states. [2021-06-05 03:39:28,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10919 to 5175. [2021-06-05 03:39:28,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5175 states, 5174 states have (on average 4.740819482025512) internal successors, (24529), 5174 states have internal predecessors, (24529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:28,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5175 states to 5175 states and 24529 transitions. [2021-06-05 03:39:28,680 INFO L78 Accepts]: Start accepts. Automaton has 5175 states and 24529 transitions. Word has length 29 [2021-06-05 03:39:28,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:28,680 INFO L482 AbstractCegarLoop]: Abstraction has 5175 states and 24529 transitions. [2021-06-05 03:39:28,680 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:28,680 INFO L276 IsEmpty]: Start isEmpty. Operand 5175 states and 24529 transitions. [2021-06-05 03:39:28,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:28,688 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:28,688 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:28,689 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-06-05 03:39:28,689 INFO L430 AbstractCegarLoop]: === Iteration 76 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:28,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:28,689 INFO L82 PathProgramCache]: Analyzing trace with hash 1875231367, now seen corresponding path program 71 times [2021-06-05 03:39:28,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:28,689 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952380552] [2021-06-05 03:39:28,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:28,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:28,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:28,830 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:28,830 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952380552] [2021-06-05 03:39:28,830 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952380552] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:28,830 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:28,830 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:28,830 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929047353] [2021-06-05 03:39:28,831 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:28,831 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:28,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:28,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:28,831 INFO L87 Difference]: Start difference. First operand 5175 states and 24529 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:28,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:28,944 INFO L93 Difference]: Finished difference Result 11255 states and 50175 transitions. [2021-06-05 03:39:28,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:28,944 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:28,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:28,970 INFO L225 Difference]: With dead ends: 11255 [2021-06-05 03:39:28,971 INFO L226 Difference]: Without dead ends: 10840 [2021-06-05 03:39:28,971 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 161.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:29,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10840 states. [2021-06-05 03:39:29,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10840 to 5223. [2021-06-05 03:39:29,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5223 states, 5222 states have (on average 4.73094599770203) internal successors, (24705), 5222 states have internal predecessors, (24705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:29,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5223 states to 5223 states and 24705 transitions. [2021-06-05 03:39:29,192 INFO L78 Accepts]: Start accepts. Automaton has 5223 states and 24705 transitions. Word has length 29 [2021-06-05 03:39:29,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:29,192 INFO L482 AbstractCegarLoop]: Abstraction has 5223 states and 24705 transitions. [2021-06-05 03:39:29,192 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:29,192 INFO L276 IsEmpty]: Start isEmpty. Operand 5223 states and 24705 transitions. [2021-06-05 03:39:29,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:29,201 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:29,201 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:29,201 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-06-05 03:39:29,201 INFO L430 AbstractCegarLoop]: === Iteration 77 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:29,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:29,201 INFO L82 PathProgramCache]: Analyzing trace with hash 1028434405, now seen corresponding path program 72 times [2021-06-05 03:39:29,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:29,202 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530504609] [2021-06-05 03:39:29,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:29,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:29,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:29,356 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:29,356 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530504609] [2021-06-05 03:39:29,356 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530504609] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:29,356 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:29,356 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:29,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780570159] [2021-06-05 03:39:29,356 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:29,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:29,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:29,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:29,357 INFO L87 Difference]: Start difference. First operand 5223 states and 24705 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:29,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:29,476 INFO L93 Difference]: Finished difference Result 11315 states and 50391 transitions. [2021-06-05 03:39:29,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:29,477 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:29,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:29,504 INFO L225 Difference]: With dead ends: 11315 [2021-06-05 03:39:29,504 INFO L226 Difference]: Without dead ends: 10736 [2021-06-05 03:39:29,504 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 166.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:29,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10736 states. [2021-06-05 03:39:29,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10736 to 5119. [2021-06-05 03:39:29,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5119 states, 5118 states have (on average 4.757522469714733) internal successors, (24349), 5118 states have internal predecessors, (24349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:29,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5119 states to 5119 states and 24349 transitions. [2021-06-05 03:39:29,723 INFO L78 Accepts]: Start accepts. Automaton has 5119 states and 24349 transitions. Word has length 29 [2021-06-05 03:39:29,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:29,723 INFO L482 AbstractCegarLoop]: Abstraction has 5119 states and 24349 transitions. [2021-06-05 03:39:29,723 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:29,723 INFO L276 IsEmpty]: Start isEmpty. Operand 5119 states and 24349 transitions. [2021-06-05 03:39:29,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:29,731 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:29,731 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:29,732 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2021-06-05 03:39:29,732 INFO L430 AbstractCegarLoop]: === Iteration 78 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:29,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:29,732 INFO L82 PathProgramCache]: Analyzing trace with hash 988599815, now seen corresponding path program 73 times [2021-06-05 03:39:29,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:29,732 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908065354] [2021-06-05 03:39:29,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:29,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:29,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:29,880 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:29,880 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908065354] [2021-06-05 03:39:29,880 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908065354] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:29,880 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:29,881 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:29,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554462902] [2021-06-05 03:39:29,881 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:29,881 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:29,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:29,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:29,881 INFO L87 Difference]: Start difference. First operand 5119 states and 24349 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:30,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:30,010 INFO L93 Difference]: Finished difference Result 10781 states and 48157 transitions. [2021-06-05 03:39:30,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:30,010 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:30,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:30,035 INFO L225 Difference]: With dead ends: 10781 [2021-06-05 03:39:30,035 INFO L226 Difference]: Without dead ends: 10366 [2021-06-05 03:39:30,036 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 181.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:30,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10366 states. [2021-06-05 03:39:30,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10366 to 5191. [2021-06-05 03:39:30,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.7493256262042385) internal successors, (24649), 5190 states have internal predecessors, (24649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:30,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24649 transitions. [2021-06-05 03:39:30,252 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24649 transitions. Word has length 29 [2021-06-05 03:39:30,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:30,252 INFO L482 AbstractCegarLoop]: Abstraction has 5191 states and 24649 transitions. [2021-06-05 03:39:30,252 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:30,253 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24649 transitions. [2021-06-05 03:39:30,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:30,261 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:30,261 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:30,261 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2021-06-05 03:39:30,261 INFO L430 AbstractCegarLoop]: === Iteration 79 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:30,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:30,262 INFO L82 PathProgramCache]: Analyzing trace with hash 1705262761, now seen corresponding path program 74 times [2021-06-05 03:39:30,262 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:30,262 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025934126] [2021-06-05 03:39:30,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:30,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:30,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:30,399 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:30,399 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025934126] [2021-06-05 03:39:30,399 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025934126] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:30,399 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:30,399 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:30,399 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103108655] [2021-06-05 03:39:30,399 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:30,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:30,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:30,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:30,400 INFO L87 Difference]: Start difference. First operand 5191 states and 24649 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:30,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:30,515 INFO L93 Difference]: Finished difference Result 10843 states and 48378 transitions. [2021-06-05 03:39:30,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:30,515 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:30,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:30,540 INFO L225 Difference]: With dead ends: 10843 [2021-06-05 03:39:30,541 INFO L226 Difference]: Without dead ends: 10318 [2021-06-05 03:39:30,541 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 159.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:30,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10318 states. [2021-06-05 03:39:30,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10318 to 5143. [2021-06-05 03:39:30,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.756320497860755) internal successors, (24457), 5142 states have internal predecessors, (24457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:30,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24457 transitions. [2021-06-05 03:39:30,756 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24457 transitions. Word has length 29 [2021-06-05 03:39:30,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:30,756 INFO L482 AbstractCegarLoop]: Abstraction has 5143 states and 24457 transitions. [2021-06-05 03:39:30,756 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:30,756 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24457 transitions. [2021-06-05 03:39:30,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:30,764 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:30,765 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:30,765 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2021-06-05 03:39:30,765 INFO L430 AbstractCegarLoop]: === Iteration 80 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:30,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:30,765 INFO L82 PathProgramCache]: Analyzing trace with hash 507697769, now seen corresponding path program 75 times [2021-06-05 03:39:30,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:30,765 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468828085] [2021-06-05 03:39:30,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:30,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:30,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:30,905 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:30,905 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468828085] [2021-06-05 03:39:30,905 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468828085] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:30,905 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:30,905 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:30,905 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445216233] [2021-06-05 03:39:30,905 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:30,905 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:30,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:30,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:30,905 INFO L87 Difference]: Start difference. First operand 5143 states and 24457 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:31,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:31,028 INFO L93 Difference]: Finished difference Result 10703 states and 47792 transitions. [2021-06-05 03:39:31,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:31,029 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:31,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:31,054 INFO L225 Difference]: With dead ends: 10703 [2021-06-05 03:39:31,054 INFO L226 Difference]: Without dead ends: 10288 [2021-06-05 03:39:31,054 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 153.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:31,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10288 states. [2021-06-05 03:39:31,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10288 to 5175. [2021-06-05 03:39:31,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5175 states, 5174 states have (on average 4.748550444530344) internal successors, (24569), 5174 states have internal predecessors, (24569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:31,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5175 states to 5175 states and 24569 transitions. [2021-06-05 03:39:31,272 INFO L78 Accepts]: Start accepts. Automaton has 5175 states and 24569 transitions. Word has length 29 [2021-06-05 03:39:31,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:31,272 INFO L482 AbstractCegarLoop]: Abstraction has 5175 states and 24569 transitions. [2021-06-05 03:39:31,272 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:31,272 INFO L276 IsEmpty]: Start isEmpty. Operand 5175 states and 24569 transitions. [2021-06-05 03:39:31,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:31,281 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:31,281 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:31,281 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2021-06-05 03:39:31,281 INFO L430 AbstractCegarLoop]: === Iteration 81 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:31,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:31,281 INFO L82 PathProgramCache]: Analyzing trace with hash 919105765, now seen corresponding path program 76 times [2021-06-05 03:39:31,281 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:31,281 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421162340] [2021-06-05 03:39:31,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:31,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:31,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:31,439 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:31,439 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421162340] [2021-06-05 03:39:31,440 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421162340] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:31,440 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:31,440 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:31,440 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773855191] [2021-06-05 03:39:31,440 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:31,440 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:31,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:31,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:31,440 INFO L87 Difference]: Start difference. First operand 5175 states and 24569 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:31,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:31,548 INFO L93 Difference]: Finished difference Result 10703 states and 47760 transitions. [2021-06-05 03:39:31,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:31,548 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:31,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:31,574 INFO L225 Difference]: With dead ends: 10703 [2021-06-05 03:39:31,574 INFO L226 Difference]: Without dead ends: 10256 [2021-06-05 03:39:31,574 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 158.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:31,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10256 states. [2021-06-05 03:39:31,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10256 to 5143. [2021-06-05 03:39:31,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.753208868144691) internal successors, (24441), 5142 states have internal predecessors, (24441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:31,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24441 transitions. [2021-06-05 03:39:31,861 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24441 transitions. Word has length 29 [2021-06-05 03:39:31,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:31,862 INFO L482 AbstractCegarLoop]: Abstraction has 5143 states and 24441 transitions. [2021-06-05 03:39:31,862 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:31,862 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24441 transitions. [2021-06-05 03:39:31,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:31,871 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:31,871 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:31,871 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2021-06-05 03:39:31,871 INFO L430 AbstractCegarLoop]: === Iteration 82 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:31,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:31,871 INFO L82 PathProgramCache]: Analyzing trace with hash 1054801253, now seen corresponding path program 77 times [2021-06-05 03:39:31,871 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:31,871 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846107960] [2021-06-05 03:39:31,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:31,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:32,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:32,023 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:32,023 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846107960] [2021-06-05 03:39:32,023 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846107960] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:32,023 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:32,023 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:32,023 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138630890] [2021-06-05 03:39:32,023 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:32,023 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:32,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:32,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:32,024 INFO L87 Difference]: Start difference. First operand 5143 states and 24441 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:32,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:32,141 INFO L93 Difference]: Finished difference Result 10843 states and 48394 transitions. [2021-06-05 03:39:32,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:32,141 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:32,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:32,166 INFO L225 Difference]: With dead ends: 10843 [2021-06-05 03:39:32,166 INFO L226 Difference]: Without dead ends: 10366 [2021-06-05 03:39:32,167 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 168.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:32,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10366 states. [2021-06-05 03:39:32,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10366 to 5191. [2021-06-05 03:39:32,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.743159922928709) internal successors, (24617), 5190 states have internal predecessors, (24617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:32,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24617 transitions. [2021-06-05 03:39:32,384 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24617 transitions. Word has length 29 [2021-06-05 03:39:32,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:32,384 INFO L482 AbstractCegarLoop]: Abstraction has 5191 states and 24617 transitions. [2021-06-05 03:39:32,384 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:32,384 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24617 transitions. [2021-06-05 03:39:32,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:32,393 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:32,393 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:32,393 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2021-06-05 03:39:32,393 INFO L430 AbstractCegarLoop]: === Iteration 83 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:32,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:32,393 INFO L82 PathProgramCache]: Analyzing trace with hash 2135863879, now seen corresponding path program 78 times [2021-06-05 03:39:32,393 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:32,393 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076997230] [2021-06-05 03:39:32,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:32,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:32,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:32,542 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:32,542 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076997230] [2021-06-05 03:39:32,542 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076997230] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:32,542 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:32,542 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:32,542 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492796079] [2021-06-05 03:39:32,542 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:32,542 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:32,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:32,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:32,543 INFO L87 Difference]: Start difference. First operand 5191 states and 24617 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:32,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:32,638 INFO L93 Difference]: Finished difference Result 10781 states and 48077 transitions. [2021-06-05 03:39:32,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:32,639 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:32,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:32,664 INFO L225 Difference]: With dead ends: 10781 [2021-06-05 03:39:32,664 INFO L226 Difference]: Without dead ends: 10302 [2021-06-05 03:39:32,664 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 149.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:32,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10302 states. [2021-06-05 03:39:32,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10302 to 5127. [2021-06-05 03:39:32,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5127 states, 5126 states have (on average 4.7571205618415915) internal successors, (24385), 5126 states have internal predecessors, (24385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:32,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5127 states to 5127 states and 24385 transitions. [2021-06-05 03:39:32,882 INFO L78 Accepts]: Start accepts. Automaton has 5127 states and 24385 transitions. Word has length 29 [2021-06-05 03:39:32,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:32,882 INFO L482 AbstractCegarLoop]: Abstraction has 5127 states and 24385 transitions. [2021-06-05 03:39:32,882 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:32,882 INFO L276 IsEmpty]: Start isEmpty. Operand 5127 states and 24385 transitions. [2021-06-05 03:39:32,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:32,890 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:32,891 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:32,891 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2021-06-05 03:39:32,891 INFO L430 AbstractCegarLoop]: === Iteration 84 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:32,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:32,891 INFO L82 PathProgramCache]: Analyzing trace with hash -1596765719, now seen corresponding path program 79 times [2021-06-05 03:39:32,891 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:32,891 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642603188] [2021-06-05 03:39:32,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:32,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:33,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:33,051 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:33,051 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642603188] [2021-06-05 03:39:33,051 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642603188] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:33,051 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:33,051 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:33,051 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863227586] [2021-06-05 03:39:33,051 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:33,051 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:33,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:33,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:33,052 INFO L87 Difference]: Start difference. First operand 5127 states and 24385 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:33,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:33,161 INFO L93 Difference]: Finished difference Result 10895 states and 48684 transitions. [2021-06-05 03:39:33,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:33,162 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:33,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:33,187 INFO L225 Difference]: With dead ends: 10895 [2021-06-05 03:39:33,188 INFO L226 Difference]: Without dead ends: 10480 [2021-06-05 03:39:33,188 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 172.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:33,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10480 states. [2021-06-05 03:39:33,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10480 to 5199. [2021-06-05 03:39:33,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5199 states, 5198 states have (on average 4.74894190073105) internal successors, (24685), 5198 states have internal predecessors, (24685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:33,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5199 states to 5199 states and 24685 transitions. [2021-06-05 03:39:33,408 INFO L78 Accepts]: Start accepts. Automaton has 5199 states and 24685 transitions. Word has length 29 [2021-06-05 03:39:33,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:33,408 INFO L482 AbstractCegarLoop]: Abstraction has 5199 states and 24685 transitions. [2021-06-05 03:39:33,408 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:33,408 INFO L276 IsEmpty]: Start isEmpty. Operand 5199 states and 24685 transitions. [2021-06-05 03:39:33,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:33,417 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:33,417 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:33,417 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2021-06-05 03:39:33,418 INFO L430 AbstractCegarLoop]: === Iteration 85 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:33,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:33,418 INFO L82 PathProgramCache]: Analyzing trace with hash -880102773, now seen corresponding path program 80 times [2021-06-05 03:39:33,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:33,418 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777191605] [2021-06-05 03:39:33,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:33,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:33,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:33,577 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:33,577 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777191605] [2021-06-05 03:39:33,577 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777191605] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:33,577 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:33,577 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:33,577 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55948635] [2021-06-05 03:39:33,577 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:33,577 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:33,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:33,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:33,578 INFO L87 Difference]: Start difference. First operand 5199 states and 24685 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:33,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:33,694 INFO L93 Difference]: Finished difference Result 10957 states and 48905 transitions. [2021-06-05 03:39:33,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:33,694 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:33,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:33,720 INFO L225 Difference]: With dead ends: 10957 [2021-06-05 03:39:33,721 INFO L226 Difference]: Without dead ends: 10432 [2021-06-05 03:39:33,721 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 178.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:33,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10432 states. [2021-06-05 03:39:33,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10432 to 5151. [2021-06-05 03:39:33,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5151 states, 5150 states have (on average 4.754368932038835) internal successors, (24485), 5150 states have internal predecessors, (24485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:33,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5151 states to 5151 states and 24485 transitions. [2021-06-05 03:39:33,937 INFO L78 Accepts]: Start accepts. Automaton has 5151 states and 24485 transitions. Word has length 29 [2021-06-05 03:39:33,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:33,937 INFO L482 AbstractCegarLoop]: Abstraction has 5151 states and 24485 transitions. [2021-06-05 03:39:33,937 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:33,937 INFO L276 IsEmpty]: Start isEmpty. Operand 5151 states and 24485 transitions. [2021-06-05 03:39:33,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:33,946 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:33,946 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:33,946 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2021-06-05 03:39:33,946 INFO L430 AbstractCegarLoop]: === Iteration 86 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:33,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:33,947 INFO L82 PathProgramCache]: Analyzing trace with hash -503795223, now seen corresponding path program 81 times [2021-06-05 03:39:33,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:33,947 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964433174] [2021-06-05 03:39:33,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:33,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:34,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:34,097 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:34,097 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964433174] [2021-06-05 03:39:34,097 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964433174] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:34,097 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:34,097 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:34,097 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530931299] [2021-06-05 03:39:34,097 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:34,097 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:34,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:34,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:34,098 INFO L87 Difference]: Start difference. First operand 5151 states and 24485 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:34,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:34,215 INFO L93 Difference]: Finished difference Result 10893 states and 48655 transitions. [2021-06-05 03:39:34,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:34,215 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:34,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:34,243 INFO L225 Difference]: With dead ends: 10893 [2021-06-05 03:39:34,243 INFO L226 Difference]: Without dead ends: 10478 [2021-06-05 03:39:34,243 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 167.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:34,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10478 states. [2021-06-05 03:39:34,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10478 to 5199. [2021-06-05 03:39:34,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5199 states, 5198 states have (on average 4.744324740284725) internal successors, (24661), 5198 states have internal predecessors, (24661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:34,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5199 states to 5199 states and 24661 transitions. [2021-06-05 03:39:34,463 INFO L78 Accepts]: Start accepts. Automaton has 5199 states and 24661 transitions. Word has length 29 [2021-06-05 03:39:34,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:34,464 INFO L482 AbstractCegarLoop]: Abstraction has 5199 states and 24661 transitions. [2021-06-05 03:39:34,464 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:34,464 INFO L276 IsEmpty]: Start isEmpty. Operand 5199 states and 24661 transitions. [2021-06-05 03:39:34,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:34,473 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:34,473 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:34,473 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2021-06-05 03:39:34,473 INFO L430 AbstractCegarLoop]: === Iteration 87 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:34,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:34,473 INFO L82 PathProgramCache]: Analyzing trace with hash 525770153, now seen corresponding path program 82 times [2021-06-05 03:39:34,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:34,473 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479112014] [2021-06-05 03:39:34,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:34,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:34,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:34,642 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:34,642 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479112014] [2021-06-05 03:39:34,643 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479112014] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:34,643 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:34,643 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:34,643 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387995647] [2021-06-05 03:39:34,643 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:34,643 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:34,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:34,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:34,643 INFO L87 Difference]: Start difference. First operand 5199 states and 24661 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:34,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:34,786 INFO L93 Difference]: Finished difference Result 10953 states and 48871 transitions. [2021-06-05 03:39:34,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:34,786 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:34,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:34,811 INFO L225 Difference]: With dead ends: 10953 [2021-06-05 03:39:34,812 INFO L226 Difference]: Without dead ends: 10430 [2021-06-05 03:39:34,812 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 188.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:34,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10430 states. [2021-06-05 03:39:35,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10430 to 5151. [2021-06-05 03:39:35,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5151 states, 5150 states have (on average 4.749708737864077) internal successors, (24461), 5150 states have internal predecessors, (24461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:35,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5151 states to 5151 states and 24461 transitions. [2021-06-05 03:39:35,030 INFO L78 Accepts]: Start accepts. Automaton has 5151 states and 24461 transitions. Word has length 29 [2021-06-05 03:39:35,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:35,030 INFO L482 AbstractCegarLoop]: Abstraction has 5151 states and 24461 transitions. [2021-06-05 03:39:35,030 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:35,030 INFO L276 IsEmpty]: Start isEmpty. Operand 5151 states and 24461 transitions. [2021-06-05 03:39:35,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:35,038 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:35,039 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:35,039 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2021-06-05 03:39:35,039 INFO L430 AbstractCegarLoop]: === Iteration 88 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:35,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:35,039 INFO L82 PathProgramCache]: Analyzing trace with hash 699696587, now seen corresponding path program 83 times [2021-06-05 03:39:35,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:35,039 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704380544] [2021-06-05 03:39:35,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:35,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:35,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:35,196 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:35,197 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704380544] [2021-06-05 03:39:35,197 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704380544] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:35,197 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:35,197 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:35,197 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271321887] [2021-06-05 03:39:35,197 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:35,197 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:35,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:35,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:35,198 INFO L87 Difference]: Start difference. First operand 5151 states and 24461 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:35,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:35,329 INFO L93 Difference]: Finished difference Result 11047 states and 49316 transitions. [2021-06-05 03:39:35,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:35,330 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:35,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:35,356 INFO L225 Difference]: With dead ends: 11047 [2021-06-05 03:39:35,356 INFO L226 Difference]: Without dead ends: 10570 [2021-06-05 03:39:35,356 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 173.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:35,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10570 states. [2021-06-05 03:39:35,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10570 to 5229. [2021-06-05 03:39:35,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5229 states, 5228 states have (on average 4.734889058913542) internal successors, (24754), 5228 states have internal predecessors, (24754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:35,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5229 states to 5229 states and 24754 transitions. [2021-06-05 03:39:35,578 INFO L78 Accepts]: Start accepts. Automaton has 5229 states and 24754 transitions. Word has length 29 [2021-06-05 03:39:35,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:35,578 INFO L482 AbstractCegarLoop]: Abstraction has 5229 states and 24754 transitions. [2021-06-05 03:39:35,578 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:35,578 INFO L276 IsEmpty]: Start isEmpty. Operand 5229 states and 24754 transitions. [2021-06-05 03:39:35,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:35,587 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:35,587 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:35,587 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2021-06-05 03:39:35,587 INFO L430 AbstractCegarLoop]: === Iteration 89 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:35,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:35,588 INFO L82 PathProgramCache]: Analyzing trace with hash -692447959, now seen corresponding path program 84 times [2021-06-05 03:39:35,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:35,588 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508383194] [2021-06-05 03:39:35,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:35,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:35,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:35,720 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:35,720 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508383194] [2021-06-05 03:39:35,720 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508383194] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:35,720 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:35,720 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:35,720 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722792164] [2021-06-05 03:39:35,720 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:35,720 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:35,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:35,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:35,721 INFO L87 Difference]: Start difference. First operand 5229 states and 24754 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:35,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:35,837 INFO L93 Difference]: Finished difference Result 11045 states and 49233 transitions. [2021-06-05 03:39:35,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:35,838 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:35,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:35,863 INFO L225 Difference]: With dead ends: 11045 [2021-06-05 03:39:35,863 INFO L226 Difference]: Without dead ends: 10468 [2021-06-05 03:39:35,864 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 153.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:35,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10468 states. [2021-06-05 03:39:36,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10468 to 5127. [2021-06-05 03:39:36,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5127 states, 5126 states have (on average 4.755559890753024) internal successors, (24377), 5126 states have internal predecessors, (24377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:36,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5127 states to 5127 states and 24377 transitions. [2021-06-05 03:39:36,082 INFO L78 Accepts]: Start accepts. Automaton has 5127 states and 24377 transitions. Word has length 29 [2021-06-05 03:39:36,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:36,082 INFO L482 AbstractCegarLoop]: Abstraction has 5127 states and 24377 transitions. [2021-06-05 03:39:36,082 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:36,082 INFO L276 IsEmpty]: Start isEmpty. Operand 5127 states and 24377 transitions. [2021-06-05 03:39:36,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:36,091 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:36,091 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:36,091 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2021-06-05 03:39:36,091 INFO L430 AbstractCegarLoop]: === Iteration 90 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:36,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:36,092 INFO L82 PathProgramCache]: Analyzing trace with hash 1908815307, now seen corresponding path program 85 times [2021-06-05 03:39:36,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:36,092 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542846580] [2021-06-05 03:39:36,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:36,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:36,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:36,230 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:36,230 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542846580] [2021-06-05 03:39:36,230 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542846580] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:36,230 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:36,230 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:36,230 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230050982] [2021-06-05 03:39:36,230 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:36,230 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:36,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:36,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:36,231 INFO L87 Difference]: Start difference. First operand 5127 states and 24377 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:36,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:36,341 INFO L93 Difference]: Finished difference Result 10701 states and 47787 transitions. [2021-06-05 03:39:36,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:36,341 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:36,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:36,367 INFO L225 Difference]: With dead ends: 10701 [2021-06-05 03:39:36,367 INFO L226 Difference]: Without dead ends: 10286 [2021-06-05 03:39:36,367 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 153.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:36,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10286 states. [2021-06-05 03:39:36,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10286 to 5175. [2021-06-05 03:39:36,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5175 states, 5174 states have (on average 4.748550444530344) internal successors, (24569), 5174 states have internal predecessors, (24569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:36,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5175 states to 5175 states and 24569 transitions. [2021-06-05 03:39:36,582 INFO L78 Accepts]: Start accepts. Automaton has 5175 states and 24569 transitions. Word has length 29 [2021-06-05 03:39:36,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:36,582 INFO L482 AbstractCegarLoop]: Abstraction has 5175 states and 24569 transitions. [2021-06-05 03:39:36,582 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:36,582 INFO L276 IsEmpty]: Start isEmpty. Operand 5175 states and 24569 transitions. [2021-06-05 03:39:36,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:36,591 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:36,591 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:36,591 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2021-06-05 03:39:36,591 INFO L430 AbstractCegarLoop]: === Iteration 91 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:36,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:36,591 INFO L82 PathProgramCache]: Analyzing trace with hash -1974743993, now seen corresponding path program 86 times [2021-06-05 03:39:36,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:36,591 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345558295] [2021-06-05 03:39:36,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:36,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:36,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:36,725 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:36,725 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345558295] [2021-06-05 03:39:36,725 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345558295] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:36,725 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:36,725 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:36,725 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856419388] [2021-06-05 03:39:36,725 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:36,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:36,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:36,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:36,725 INFO L87 Difference]: Start difference. First operand 5175 states and 24569 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:36,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:36,827 INFO L93 Difference]: Finished difference Result 10701 states and 47755 transitions. [2021-06-05 03:39:36,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:36,827 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:36,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:36,853 INFO L225 Difference]: With dead ends: 10701 [2021-06-05 03:39:36,853 INFO L226 Difference]: Without dead ends: 10254 [2021-06-05 03:39:36,853 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 138.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:36,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10254 states. [2021-06-05 03:39:37,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10254 to 5143. [2021-06-05 03:39:37,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.753208868144691) internal successors, (24441), 5142 states have internal predecessors, (24441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:37,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24441 transitions. [2021-06-05 03:39:37,069 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24441 transitions. Word has length 29 [2021-06-05 03:39:37,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:37,069 INFO L482 AbstractCegarLoop]: Abstraction has 5143 states and 24441 transitions. [2021-06-05 03:39:37,070 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:37,070 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24441 transitions. [2021-06-05 03:39:37,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:37,078 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:37,078 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:37,078 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2021-06-05 03:39:37,078 INFO L430 AbstractCegarLoop]: === Iteration 92 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:37,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:37,079 INFO L82 PathProgramCache]: Analyzing trace with hash -114246231, now seen corresponding path program 87 times [2021-06-05 03:39:37,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:37,079 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445681571] [2021-06-05 03:39:37,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:37,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:37,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:37,235 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:37,235 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445681571] [2021-06-05 03:39:37,235 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445681571] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:37,235 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:37,235 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:37,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914910883] [2021-06-05 03:39:37,235 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:37,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:37,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:37,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:37,235 INFO L87 Difference]: Start difference. First operand 5143 states and 24441 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:37,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:37,367 INFO L93 Difference]: Finished difference Result 10777 states and 48115 transitions. [2021-06-05 03:39:37,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:37,367 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:37,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:37,393 INFO L225 Difference]: With dead ends: 10777 [2021-06-05 03:39:37,393 INFO L226 Difference]: Without dead ends: 10362 [2021-06-05 03:39:37,393 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 175.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:37,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10362 states. [2021-06-05 03:39:37,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10362 to 5191. [2021-06-05 03:39:37,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.743159922928709) internal successors, (24617), 5190 states have internal predecessors, (24617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:37,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24617 transitions. [2021-06-05 03:39:37,611 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24617 transitions. Word has length 29 [2021-06-05 03:39:37,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:37,611 INFO L482 AbstractCegarLoop]: Abstraction has 5191 states and 24617 transitions. [2021-06-05 03:39:37,612 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:37,612 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24617 transitions. [2021-06-05 03:39:37,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:37,620 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:37,620 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:37,620 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2021-06-05 03:39:37,620 INFO L430 AbstractCegarLoop]: === Iteration 93 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:37,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:37,621 INFO L82 PathProgramCache]: Analyzing trace with hash -2059595381, now seen corresponding path program 88 times [2021-06-05 03:39:37,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:37,621 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886262427] [2021-06-05 03:39:37,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:37,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:37,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:37,767 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:37,767 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886262427] [2021-06-05 03:39:37,767 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886262427] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:37,767 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:37,767 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:37,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217288127] [2021-06-05 03:39:37,767 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:37,767 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:37,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:37,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:37,767 INFO L87 Difference]: Start difference. First operand 5191 states and 24617 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:37,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:37,897 INFO L93 Difference]: Finished difference Result 10837 states and 48331 transitions. [2021-06-05 03:39:37,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:37,898 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:37,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:37,924 INFO L225 Difference]: With dead ends: 10837 [2021-06-05 03:39:37,924 INFO L226 Difference]: Without dead ends: 10314 [2021-06-05 03:39:37,924 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 168.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:38,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10314 states. [2021-06-05 03:39:38,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10314 to 5143. [2021-06-05 03:39:38,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.750097238428627) internal successors, (24425), 5142 states have internal predecessors, (24425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:38,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24425 transitions. [2021-06-05 03:39:38,143 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24425 transitions. Word has length 29 [2021-06-05 03:39:38,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:38,143 INFO L482 AbstractCegarLoop]: Abstraction has 5143 states and 24425 transitions. [2021-06-05 03:39:38,143 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:38,144 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24425 transitions. [2021-06-05 03:39:38,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:38,153 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:38,153 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:38,153 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2021-06-05 03:39:38,153 INFO L430 AbstractCegarLoop]: === Iteration 94 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:38,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:38,153 INFO L82 PathProgramCache]: Analyzing trace with hash 151539045, now seen corresponding path program 89 times [2021-06-05 03:39:38,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:38,153 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439693294] [2021-06-05 03:39:38,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:38,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:38,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:38,303 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:38,303 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439693294] [2021-06-05 03:39:38,303 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439693294] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:38,303 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:38,303 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:38,303 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884883427] [2021-06-05 03:39:38,304 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:38,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:38,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:38,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:38,304 INFO L87 Difference]: Start difference. First operand 5143 states and 24425 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:38,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:38,417 INFO L93 Difference]: Finished difference Result 10777 states and 48099 transitions. [2021-06-05 03:39:38,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:38,418 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:38,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:38,444 INFO L225 Difference]: With dead ends: 10777 [2021-06-05 03:39:38,444 INFO L226 Difference]: Without dead ends: 10362 [2021-06-05 03:39:38,444 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 153.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:38,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10362 states. [2021-06-05 03:39:38,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10362 to 5191. [2021-06-05 03:39:38,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.740077071290944) internal successors, (24601), 5190 states have internal predecessors, (24601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:38,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24601 transitions. [2021-06-05 03:39:38,660 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24601 transitions. Word has length 29 [2021-06-05 03:39:38,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:38,661 INFO L482 AbstractCegarLoop]: Abstraction has 5191 states and 24601 transitions. [2021-06-05 03:39:38,661 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:38,661 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24601 transitions. [2021-06-05 03:39:38,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:38,669 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:38,669 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:38,669 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2021-06-05 03:39:38,669 INFO L430 AbstractCegarLoop]: === Iteration 95 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:38,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:38,670 INFO L82 PathProgramCache]: Analyzing trace with hash 1232601671, now seen corresponding path program 90 times [2021-06-05 03:39:38,670 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:38,670 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534563444] [2021-06-05 03:39:38,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:38,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:38,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:38,814 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:38,814 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534563444] [2021-06-05 03:39:38,815 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534563444] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:38,815 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:38,815 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:38,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562450079] [2021-06-05 03:39:38,815 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:38,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:38,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:38,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:38,815 INFO L87 Difference]: Start difference. First operand 5191 states and 24601 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:38,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:38,927 INFO L93 Difference]: Finished difference Result 10837 states and 48315 transitions. [2021-06-05 03:39:38,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:38,927 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:38,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:38,952 INFO L225 Difference]: With dead ends: 10837 [2021-06-05 03:39:38,952 INFO L226 Difference]: Without dead ends: 10298 [2021-06-05 03:39:38,952 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 165.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:39,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10298 states. [2021-06-05 03:39:39,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10298 to 5127. [2021-06-05 03:39:39,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5127 states, 5126 states have (on average 4.753999219664456) internal successors, (24369), 5126 states have internal predecessors, (24369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:39,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5127 states to 5127 states and 24369 transitions. [2021-06-05 03:39:39,167 INFO L78 Accepts]: Start accepts. Automaton has 5127 states and 24369 transitions. Word has length 29 [2021-06-05 03:39:39,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:39,167 INFO L482 AbstractCegarLoop]: Abstraction has 5127 states and 24369 transitions. [2021-06-05 03:39:39,167 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:39,167 INFO L276 IsEmpty]: Start isEmpty. Operand 5127 states and 24369 transitions. [2021-06-05 03:39:39,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:39,175 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:39,175 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:39,176 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2021-06-05 03:39:39,176 INFO L430 AbstractCegarLoop]: === Iteration 96 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:39,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:39,176 INFO L82 PathProgramCache]: Analyzing trace with hash 9935333, now seen corresponding path program 91 times [2021-06-05 03:39:39,176 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:39,176 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155387737] [2021-06-05 03:39:39,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:39,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:39,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:39,314 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:39,314 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155387737] [2021-06-05 03:39:39,314 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155387737] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:39,315 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:39,315 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:39,315 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967204236] [2021-06-05 03:39:39,315 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:39,315 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:39,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:39,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:39,315 INFO L87 Difference]: Start difference. First operand 5127 states and 24369 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:39,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:39,428 INFO L93 Difference]: Finished difference Result 10957 states and 48937 transitions. [2021-06-05 03:39:39,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:39,429 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:39,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:39,456 INFO L225 Difference]: With dead ends: 10957 [2021-06-05 03:39:39,457 INFO L226 Difference]: Without dead ends: 10480 [2021-06-05 03:39:39,457 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 160.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:39,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10480 states. [2021-06-05 03:39:39,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10480 to 5199. [2021-06-05 03:39:39,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5199 states, 5198 states have (on average 4.7458637937668335) internal successors, (24669), 5198 states have internal predecessors, (24669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:39,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5199 states to 5199 states and 24669 transitions. [2021-06-05 03:39:39,676 INFO L78 Accepts]: Start accepts. Automaton has 5199 states and 24669 transitions. Word has length 29 [2021-06-05 03:39:39,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:39,677 INFO L482 AbstractCegarLoop]: Abstraction has 5199 states and 24669 transitions. [2021-06-05 03:39:39,677 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:39,677 INFO L276 IsEmpty]: Start isEmpty. Operand 5199 states and 24669 transitions. [2021-06-05 03:39:39,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:39,688 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:39,688 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:39,688 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2021-06-05 03:39:39,688 INFO L430 AbstractCegarLoop]: === Iteration 97 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:39,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:39,689 INFO L82 PathProgramCache]: Analyzing trace with hash 1090997959, now seen corresponding path program 92 times [2021-06-05 03:39:39,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:39,689 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006854169] [2021-06-05 03:39:39,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:39,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:39,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:39,841 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:39,841 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006854169] [2021-06-05 03:39:39,841 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006854169] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:39,841 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:39,841 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:39,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779937164] [2021-06-05 03:39:39,842 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:39,842 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:39,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:39,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:39,842 INFO L87 Difference]: Start difference. First operand 5199 states and 24669 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:39,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:39,935 INFO L93 Difference]: Finished difference Result 10895 states and 48620 transitions. [2021-06-05 03:39:39,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:39,935 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:39,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:39,960 INFO L225 Difference]: With dead ends: 10895 [2021-06-05 03:39:39,960 INFO L226 Difference]: Without dead ends: 10432 [2021-06-05 03:39:39,960 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 153.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:40,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10432 states. [2021-06-05 03:39:40,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10432 to 5151. [2021-06-05 03:39:40,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5151 states, 5150 states have (on average 4.75126213592233) internal successors, (24469), 5150 states have internal predecessors, (24469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:40,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5151 states to 5151 states and 24469 transitions. [2021-06-05 03:39:40,174 INFO L78 Accepts]: Start accepts. Automaton has 5151 states and 24469 transitions. Word has length 29 [2021-06-05 03:39:40,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:40,174 INFO L482 AbstractCegarLoop]: Abstraction has 5151 states and 24469 transitions. [2021-06-05 03:39:40,174 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:40,175 INFO L276 IsEmpty]: Start isEmpty. Operand 5151 states and 24469 transitions. [2021-06-05 03:39:40,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:40,183 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:40,183 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:40,183 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2021-06-05 03:39:40,183 INFO L430 AbstractCegarLoop]: === Iteration 98 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:40,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:40,183 INFO L82 PathProgramCache]: Analyzing trace with hash -470966713, now seen corresponding path program 93 times [2021-06-05 03:39:40,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:40,183 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249219083] [2021-06-05 03:39:40,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:40,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:40,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:40,315 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:40,315 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249219083] [2021-06-05 03:39:40,315 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249219083] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:40,315 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:40,316 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:40,316 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003120296] [2021-06-05 03:39:40,316 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:40,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:40,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:40,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:40,316 INFO L87 Difference]: Start difference. First operand 5151 states and 24469 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:40,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:40,428 INFO L93 Difference]: Finished difference Result 11047 states and 49324 transitions. [2021-06-05 03:39:40,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:40,428 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:40,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:40,454 INFO L225 Difference]: With dead ends: 11047 [2021-06-05 03:39:40,454 INFO L226 Difference]: Without dead ends: 10570 [2021-06-05 03:39:40,454 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 151.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:40,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10570 states. [2021-06-05 03:39:40,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10570 to 5229. [2021-06-05 03:39:40,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5229 states, 5228 states have (on average 4.736419280795715) internal successors, (24762), 5228 states have internal predecessors, (24762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:40,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5229 states to 5229 states and 24762 transitions. [2021-06-05 03:39:40,671 INFO L78 Accepts]: Start accepts. Automaton has 5229 states and 24762 transitions. Word has length 29 [2021-06-05 03:39:40,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:40,672 INFO L482 AbstractCegarLoop]: Abstraction has 5229 states and 24762 transitions. [2021-06-05 03:39:40,672 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:40,672 INFO L276 IsEmpty]: Start isEmpty. Operand 5229 states and 24762 transitions. [2021-06-05 03:39:40,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:40,680 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:40,680 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:40,681 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2021-06-05 03:39:40,681 INFO L430 AbstractCegarLoop]: === Iteration 99 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:40,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:40,681 INFO L82 PathProgramCache]: Analyzing trace with hash 2135754311, now seen corresponding path program 94 times [2021-06-05 03:39:40,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:40,681 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257713526] [2021-06-05 03:39:40,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:40,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:40,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:40,821 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:40,821 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257713526] [2021-06-05 03:39:40,821 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257713526] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:40,821 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:40,821 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:40,821 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83969083] [2021-06-05 03:39:40,821 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:40,821 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:40,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:40,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:40,822 INFO L87 Difference]: Start difference. First operand 5229 states and 24762 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:40,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:40,938 INFO L93 Difference]: Finished difference Result 11045 states and 49241 transitions. [2021-06-05 03:39:40,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:40,938 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:40,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:40,964 INFO L225 Difference]: With dead ends: 11045 [2021-06-05 03:39:40,964 INFO L226 Difference]: Without dead ends: 10492 [2021-06-05 03:39:40,964 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 156.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:41,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10492 states. [2021-06-05 03:39:41,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10492 to 5151. [2021-06-05 03:39:41,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5151 states, 5150 states have (on average 4.746601941747572) internal successors, (24445), 5150 states have internal predecessors, (24445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:41,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5151 states to 5151 states and 24445 transitions. [2021-06-05 03:39:41,181 INFO L78 Accepts]: Start accepts. Automaton has 5151 states and 24445 transitions. Word has length 29 [2021-06-05 03:39:41,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:41,181 INFO L482 AbstractCegarLoop]: Abstraction has 5151 states and 24445 transitions. [2021-06-05 03:39:41,181 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:41,181 INFO L276 IsEmpty]: Start isEmpty. Operand 5151 states and 24445 transitions. [2021-06-05 03:39:41,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:41,190 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:41,190 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:41,190 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2021-06-05 03:39:41,190 INFO L430 AbstractCegarLoop]: === Iteration 100 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:41,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:41,190 INFO L82 PathProgramCache]: Analyzing trace with hash -82961751, now seen corresponding path program 95 times [2021-06-05 03:39:41,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:41,190 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705676047] [2021-06-05 03:39:41,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:41,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:41,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:41,350 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:41,351 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705676047] [2021-06-05 03:39:41,351 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705676047] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:41,351 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:41,351 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:41,351 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638693399] [2021-06-05 03:39:41,351 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:41,351 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:41,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:41,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:41,351 INFO L87 Difference]: Start difference. First operand 5151 states and 24445 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:41,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:41,447 INFO L93 Difference]: Finished difference Result 10893 states and 48615 transitions. [2021-06-05 03:39:41,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:41,447 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:41,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:41,472 INFO L225 Difference]: With dead ends: 10893 [2021-06-05 03:39:41,472 INFO L226 Difference]: Without dead ends: 10478 [2021-06-05 03:39:41,473 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 156.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:41,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10478 states. [2021-06-05 03:39:41,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10478 to 5199. [2021-06-05 03:39:41,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5199 states, 5198 states have (on average 4.736629472874182) internal successors, (24621), 5198 states have internal predecessors, (24621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:41,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5199 states to 5199 states and 24621 transitions. [2021-06-05 03:39:41,723 INFO L78 Accepts]: Start accepts. Automaton has 5199 states and 24621 transitions. Word has length 29 [2021-06-05 03:39:41,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:41,723 INFO L482 AbstractCegarLoop]: Abstraction has 5199 states and 24621 transitions. [2021-06-05 03:39:41,723 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:41,723 INFO L276 IsEmpty]: Start isEmpty. Operand 5199 states and 24621 transitions. [2021-06-05 03:39:41,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:41,731 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:41,731 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:41,731 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2021-06-05 03:39:41,731 INFO L430 AbstractCegarLoop]: === Iteration 101 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:41,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:41,732 INFO L82 PathProgramCache]: Analyzing trace with hash -929758713, now seen corresponding path program 96 times [2021-06-05 03:39:41,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:41,732 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215118059] [2021-06-05 03:39:41,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:41,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:41,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:41,874 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:41,874 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215118059] [2021-06-05 03:39:41,874 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215118059] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:41,874 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:41,874 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:41,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707219336] [2021-06-05 03:39:41,874 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:41,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:41,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:41,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:41,875 INFO L87 Difference]: Start difference. First operand 5199 states and 24621 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:41,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:41,988 INFO L93 Difference]: Finished difference Result 10953 states and 48831 transitions. [2021-06-05 03:39:41,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:41,988 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:41,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:42,014 INFO L225 Difference]: With dead ends: 10953 [2021-06-05 03:39:42,014 INFO L226 Difference]: Without dead ends: 10398 [2021-06-05 03:39:42,014 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 157.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:42,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10398 states. [2021-06-05 03:39:42,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10398 to 5119. [2021-06-05 03:39:42,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5119 states, 5118 states have (on average 4.756740914419695) internal successors, (24345), 5118 states have internal predecessors, (24345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:42,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5119 states to 5119 states and 24345 transitions. [2021-06-05 03:39:42,228 INFO L78 Accepts]: Start accepts. Automaton has 5119 states and 24345 transitions. Word has length 29 [2021-06-05 03:39:42,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:42,228 INFO L482 AbstractCegarLoop]: Abstraction has 5119 states and 24345 transitions. [2021-06-05 03:39:42,228 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:42,228 INFO L276 IsEmpty]: Start isEmpty. Operand 5119 states and 24345 transitions. [2021-06-05 03:39:42,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:42,237 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:42,237 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:42,237 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2021-06-05 03:39:42,237 INFO L430 AbstractCegarLoop]: === Iteration 102 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:42,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:42,237 INFO L82 PathProgramCache]: Analyzing trace with hash 911279811, now seen corresponding path program 97 times [2021-06-05 03:39:42,237 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:42,237 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372252663] [2021-06-05 03:39:42,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:42,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:42,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:42,378 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:42,378 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372252663] [2021-06-05 03:39:42,378 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372252663] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:42,378 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:42,378 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:42,378 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396672181] [2021-06-05 03:39:42,378 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:42,378 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:42,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:42,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:42,379 INFO L87 Difference]: Start difference. First operand 5119 states and 24345 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:42,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:42,495 INFO L93 Difference]: Finished difference Result 11927 states and 53123 transitions. [2021-06-05 03:39:42,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:42,496 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:42,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:42,526 INFO L225 Difference]: With dead ends: 11927 [2021-06-05 03:39:42,526 INFO L226 Difference]: Without dead ends: 11385 [2021-06-05 03:39:42,527 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 148.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:42,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11385 states. [2021-06-05 03:39:42,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11385 to 5354. [2021-06-05 03:39:42,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5354 states, 5353 states have (on average 4.7278161778442) internal successors, (25308), 5353 states have internal predecessors, (25308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:42,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5354 states to 5354 states and 25308 transitions. [2021-06-05 03:39:42,757 INFO L78 Accepts]: Start accepts. Automaton has 5354 states and 25308 transitions. Word has length 29 [2021-06-05 03:39:42,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:42,757 INFO L482 AbstractCegarLoop]: Abstraction has 5354 states and 25308 transitions. [2021-06-05 03:39:42,757 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:42,757 INFO L276 IsEmpty]: Start isEmpty. Operand 5354 states and 25308 transitions. [2021-06-05 03:39:42,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:42,766 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:42,766 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:42,766 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2021-06-05 03:39:42,766 INFO L430 AbstractCegarLoop]: === Iteration 103 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:42,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:42,766 INFO L82 PathProgramCache]: Analyzing trace with hash 1992342437, now seen corresponding path program 98 times [2021-06-05 03:39:42,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:42,767 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391418460] [2021-06-05 03:39:42,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:42,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:42,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:42,896 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:42,896 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391418460] [2021-06-05 03:39:42,896 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391418460] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:42,896 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:42,896 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:42,896 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354084192] [2021-06-05 03:39:42,897 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:42,897 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:42,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:42,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:42,897 INFO L87 Difference]: Start difference. First operand 5354 states and 25308 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:43,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:43,014 INFO L93 Difference]: Finished difference Result 11862 states and 52754 transitions. [2021-06-05 03:39:43,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:43,016 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:43,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:43,044 INFO L225 Difference]: With dead ends: 11862 [2021-06-05 03:39:43,044 INFO L226 Difference]: Without dead ends: 11242 [2021-06-05 03:39:43,044 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 147.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:43,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11242 states. [2021-06-05 03:39:43,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11242 to 5211. [2021-06-05 03:39:43,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5211 states, 5210 states have (on average 4.747216890595009) internal successors, (24733), 5210 states have internal predecessors, (24733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:43,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5211 states to 5211 states and 24733 transitions. [2021-06-05 03:39:43,268 INFO L78 Accepts]: Start accepts. Automaton has 5211 states and 24733 transitions. Word has length 29 [2021-06-05 03:39:43,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:43,268 INFO L482 AbstractCegarLoop]: Abstraction has 5211 states and 24733 transitions. [2021-06-05 03:39:43,268 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:43,268 INFO L276 IsEmpty]: Start isEmpty. Operand 5211 states and 24733 transitions. [2021-06-05 03:39:43,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:43,276 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:43,276 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:43,276 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2021-06-05 03:39:43,276 INFO L430 AbstractCegarLoop]: === Iteration 104 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:43,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:43,277 INFO L82 PathProgramCache]: Analyzing trace with hash 430377765, now seen corresponding path program 99 times [2021-06-05 03:39:43,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:43,277 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732140581] [2021-06-05 03:39:43,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:43,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:43,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:43,409 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:43,409 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732140581] [2021-06-05 03:39:43,409 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732140581] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:43,409 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:43,409 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:43,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268017256] [2021-06-05 03:39:43,410 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:43,410 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:43,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:43,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:43,410 INFO L87 Difference]: Start difference. First operand 5211 states and 24733 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:43,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:43,517 INFO L93 Difference]: Finished difference Result 11802 states and 52536 transitions. [2021-06-05 03:39:43,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:43,517 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:43,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:43,545 INFO L225 Difference]: With dead ends: 11802 [2021-06-05 03:39:43,545 INFO L226 Difference]: Without dead ends: 11260 [2021-06-05 03:39:43,545 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 137.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:43,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11260 states. [2021-06-05 03:39:43,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11260 to 5291. [2021-06-05 03:39:43,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5291 states, 5290 states have (on average 4.729867674858223) internal successors, (25021), 5290 states have internal predecessors, (25021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:43,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5291 states to 5291 states and 25021 transitions. [2021-06-05 03:39:43,771 INFO L78 Accepts]: Start accepts. Automaton has 5291 states and 25021 transitions. Word has length 29 [2021-06-05 03:39:43,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:43,771 INFO L482 AbstractCegarLoop]: Abstraction has 5291 states and 25021 transitions. [2021-06-05 03:39:43,771 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:43,771 INFO L276 IsEmpty]: Start isEmpty. Operand 5291 states and 25021 transitions. [2021-06-05 03:39:43,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:43,780 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:43,780 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:43,780 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2021-06-05 03:39:43,780 INFO L430 AbstractCegarLoop]: === Iteration 105 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:43,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:43,781 INFO L82 PathProgramCache]: Analyzing trace with hash -1257868507, now seen corresponding path program 100 times [2021-06-05 03:39:43,781 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:43,781 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710767399] [2021-06-05 03:39:43,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:43,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:43,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:43,917 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:43,917 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710767399] [2021-06-05 03:39:43,917 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710767399] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:43,917 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:43,917 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:43,917 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623053120] [2021-06-05 03:39:43,917 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:43,917 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:43,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:43,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:43,917 INFO L87 Difference]: Start difference. First operand 5291 states and 25021 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:44,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:44,016 INFO L93 Difference]: Finished difference Result 11675 states and 51929 transitions. [2021-06-05 03:39:44,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:44,017 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:44,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:44,044 INFO L225 Difference]: With dead ends: 11675 [2021-06-05 03:39:44,044 INFO L226 Difference]: Without dead ends: 11180 [2021-06-05 03:39:44,044 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 139.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:44,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11180 states. [2021-06-05 03:39:44,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11180 to 5211. [2021-06-05 03:39:44,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5211 states, 5210 states have (on average 4.739539347408829) internal successors, (24693), 5210 states have internal predecessors, (24693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:44,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5211 states to 5211 states and 24693 transitions. [2021-06-05 03:39:44,268 INFO L78 Accepts]: Start accepts. Automaton has 5211 states and 24693 transitions. Word has length 29 [2021-06-05 03:39:44,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:44,268 INFO L482 AbstractCegarLoop]: Abstraction has 5211 states and 24693 transitions. [2021-06-05 03:39:44,268 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:44,268 INFO L276 IsEmpty]: Start isEmpty. Operand 5211 states and 24693 transitions. [2021-06-05 03:39:44,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:44,277 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:44,277 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:44,277 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2021-06-05 03:39:44,277 INFO L430 AbstractCegarLoop]: === Iteration 106 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:44,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:44,277 INFO L82 PathProgramCache]: Analyzing trace with hash 818382727, now seen corresponding path program 101 times [2021-06-05 03:39:44,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:44,278 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446990451] [2021-06-05 03:39:44,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:44,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:44,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:44,432 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:44,432 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446990451] [2021-06-05 03:39:44,432 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446990451] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:44,432 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:44,432 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:44,433 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199456277] [2021-06-05 03:39:44,433 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:44,433 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:44,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:44,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:44,433 INFO L87 Difference]: Start difference. First operand 5211 states and 24693 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:44,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:44,577 INFO L93 Difference]: Finished difference Result 11640 states and 51836 transitions. [2021-06-05 03:39:44,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:44,578 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:44,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:44,605 INFO L225 Difference]: With dead ends: 11640 [2021-06-05 03:39:44,605 INFO L226 Difference]: Without dead ends: 11163 [2021-06-05 03:39:44,606 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 172.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:44,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11163 states. [2021-06-05 03:39:44,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11163 to 5259. [2021-06-05 03:39:44,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5259 states, 5258 states have (on average 4.7297451502472425) internal successors, (24869), 5258 states have internal predecessors, (24869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:44,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5259 states to 5259 states and 24869 transitions. [2021-06-05 03:39:44,829 INFO L78 Accepts]: Start accepts. Automaton has 5259 states and 24869 transitions. Word has length 29 [2021-06-05 03:39:44,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:44,829 INFO L482 AbstractCegarLoop]: Abstraction has 5259 states and 24869 transitions. [2021-06-05 03:39:44,829 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:44,829 INFO L276 IsEmpty]: Start isEmpty. Operand 5259 states and 24869 transitions. [2021-06-05 03:39:44,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:44,838 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:44,838 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:44,838 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2021-06-05 03:39:44,838 INFO L430 AbstractCegarLoop]: === Iteration 107 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:44,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:44,838 INFO L82 PathProgramCache]: Analyzing trace with hash -28414235, now seen corresponding path program 102 times [2021-06-05 03:39:44,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:44,839 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916683220] [2021-06-05 03:39:44,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:44,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:44,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:44,988 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:44,988 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916683220] [2021-06-05 03:39:44,988 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916683220] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:44,988 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:44,988 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:44,988 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248126060] [2021-06-05 03:39:44,988 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:44,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:44,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:44,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:44,989 INFO L87 Difference]: Start difference. First operand 5259 states and 24869 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:45,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:45,081 INFO L93 Difference]: Finished difference Result 11578 states and 51519 transitions. [2021-06-05 03:39:45,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:45,081 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:45,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:45,108 INFO L225 Difference]: With dead ends: 11578 [2021-06-05 03:39:45,108 INFO L226 Difference]: Without dead ends: 11059 [2021-06-05 03:39:45,108 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 149.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:45,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11059 states. [2021-06-05 03:39:45,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11059 to 5155. [2021-06-05 03:39:45,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5155 states, 5154 states have (on average 4.752231276678308) internal successors, (24493), 5154 states have internal predecessors, (24493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:45,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 24493 transitions. [2021-06-05 03:39:45,329 INFO L78 Accepts]: Start accepts. Automaton has 5155 states and 24493 transitions. Word has length 29 [2021-06-05 03:39:45,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:45,329 INFO L482 AbstractCegarLoop]: Abstraction has 5155 states and 24493 transitions. [2021-06-05 03:39:45,329 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:45,329 INFO L276 IsEmpty]: Start isEmpty. Operand 5155 states and 24493 transitions. [2021-06-05 03:39:45,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:45,338 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:45,338 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:45,338 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2021-06-05 03:39:45,338 INFO L430 AbstractCegarLoop]: === Iteration 108 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:45,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:45,338 INFO L82 PathProgramCache]: Analyzing trace with hash -1674085723, now seen corresponding path program 103 times [2021-06-05 03:39:45,338 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:45,338 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095710387] [2021-06-05 03:39:45,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:45,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:45,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:45,466 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:45,466 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095710387] [2021-06-05 03:39:45,466 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095710387] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:45,466 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:45,466 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:45,466 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844332135] [2021-06-05 03:39:45,466 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:45,466 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:45,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:45,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:45,466 INFO L87 Difference]: Start difference. First operand 5155 states and 24493 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:45,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:45,567 INFO L93 Difference]: Finished difference Result 12078 states and 53782 transitions. [2021-06-05 03:39:45,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:45,567 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:45,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:45,595 INFO L225 Difference]: With dead ends: 12078 [2021-06-05 03:39:45,595 INFO L226 Difference]: Without dead ends: 11536 [2021-06-05 03:39:45,595 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 126.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:45,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11536 states. [2021-06-05 03:39:45,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11536 to 5385. [2021-06-05 03:39:45,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5385 states, 5384 states have (on average 4.719353640416047) internal successors, (25409), 5384 states have internal predecessors, (25409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:45,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5385 states to 5385 states and 25409 transitions. [2021-06-05 03:39:45,828 INFO L78 Accepts]: Start accepts. Automaton has 5385 states and 25409 transitions. Word has length 29 [2021-06-05 03:39:45,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:45,828 INFO L482 AbstractCegarLoop]: Abstraction has 5385 states and 25409 transitions. [2021-06-05 03:39:45,829 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:45,829 INFO L276 IsEmpty]: Start isEmpty. Operand 5385 states and 25409 transitions. [2021-06-05 03:39:45,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:45,838 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:45,838 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:45,838 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2021-06-05 03:39:45,838 INFO L430 AbstractCegarLoop]: === Iteration 109 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:45,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:45,838 INFO L82 PathProgramCache]: Analyzing trace with hash -593023097, now seen corresponding path program 104 times [2021-06-05 03:39:45,838 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:45,839 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690906116] [2021-06-05 03:39:45,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:45,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:45,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:45,958 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:45,958 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690906116] [2021-06-05 03:39:45,958 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690906116] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:45,958 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:45,958 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:45,958 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693314688] [2021-06-05 03:39:45,958 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:45,958 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:45,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:45,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:45,959 INFO L87 Difference]: Start difference. First operand 5385 states and 25409 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:46,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:46,088 INFO L93 Difference]: Finished difference Result 12013 states and 53413 transitions. [2021-06-05 03:39:46,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:46,089 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:46,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:46,117 INFO L225 Difference]: With dead ends: 12013 [2021-06-05 03:39:46,117 INFO L226 Difference]: Without dead ends: 11393 [2021-06-05 03:39:46,117 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 141.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:46,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11393 states. [2021-06-05 03:39:46,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11393 to 5242. [2021-06-05 03:39:46,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5242 states, 5241 states have (on average 4.735546651402404) internal successors, (24819), 5241 states have internal predecessors, (24819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:46,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5242 states to 5242 states and 24819 transitions. [2021-06-05 03:39:46,343 INFO L78 Accepts]: Start accepts. Automaton has 5242 states and 24819 transitions. Word has length 29 [2021-06-05 03:39:46,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:46,343 INFO L482 AbstractCegarLoop]: Abstraction has 5242 states and 24819 transitions. [2021-06-05 03:39:46,343 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:46,343 INFO L276 IsEmpty]: Start isEmpty. Operand 5242 states and 24819 transitions. [2021-06-05 03:39:46,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:46,352 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:46,352 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:46,352 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2021-06-05 03:39:46,352 INFO L430 AbstractCegarLoop]: === Iteration 110 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:46,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:46,352 INFO L82 PathProgramCache]: Analyzing trace with hash -581115227, now seen corresponding path program 105 times [2021-06-05 03:39:46,352 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:46,352 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67173183] [2021-06-05 03:39:46,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:46,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:46,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:46,481 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:46,481 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67173183] [2021-06-05 03:39:46,481 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67173183] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:46,481 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:46,481 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:46,481 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827799339] [2021-06-05 03:39:46,481 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:46,482 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:46,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:46,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:46,482 INFO L87 Difference]: Start difference. First operand 5242 states and 24819 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:46,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:46,590 INFO L93 Difference]: Finished difference Result 12043 states and 53591 transitions. [2021-06-05 03:39:46,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:46,590 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:46,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:46,619 INFO L225 Difference]: With dead ends: 12043 [2021-06-05 03:39:46,619 INFO L226 Difference]: Without dead ends: 11501 [2021-06-05 03:39:46,619 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 126.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:46,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11501 states. [2021-06-05 03:39:46,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11501 to 5352. [2021-06-05 03:39:46,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5352 states, 5351 states have (on average 4.713885255092506) internal successors, (25224), 5351 states have internal predecessors, (25224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:46,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5352 states to 5352 states and 25224 transitions. [2021-06-05 03:39:46,846 INFO L78 Accepts]: Start accepts. Automaton has 5352 states and 25224 transitions. Word has length 29 [2021-06-05 03:39:46,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:46,846 INFO L482 AbstractCegarLoop]: Abstraction has 5352 states and 25224 transitions. [2021-06-05 03:39:46,846 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:46,846 INFO L276 IsEmpty]: Start isEmpty. Operand 5352 states and 25224 transitions. [2021-06-05 03:39:46,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:46,855 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:46,855 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:46,855 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2021-06-05 03:39:46,856 INFO L430 AbstractCegarLoop]: === Iteration 111 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:46,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:46,856 INFO L82 PathProgramCache]: Analyzing trace with hash -531547483, now seen corresponding path program 106 times [2021-06-05 03:39:46,856 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:46,856 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537208550] [2021-06-05 03:39:46,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:46,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:46,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:46,976 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:46,976 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537208550] [2021-06-05 03:39:46,976 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537208550] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:46,976 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:46,976 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:46,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304330038] [2021-06-05 03:39:46,976 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:46,976 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:46,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:46,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:46,977 INFO L87 Difference]: Start difference. First operand 5352 states and 25224 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:47,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:47,101 INFO L93 Difference]: Finished difference Result 11976 states and 53218 transitions. [2021-06-05 03:39:47,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:47,102 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:47,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:47,129 INFO L225 Difference]: With dead ends: 11976 [2021-06-05 03:39:47,130 INFO L226 Difference]: Without dead ends: 11391 [2021-06-05 03:39:47,130 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 141.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:47,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11391 states. [2021-06-05 03:39:47,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11391 to 5242. [2021-06-05 03:39:47,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5242 states, 5241 states have (on average 4.7250524709025) internal successors, (24764), 5241 states have internal predecessors, (24764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:47,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5242 states to 5242 states and 24764 transitions. [2021-06-05 03:39:47,356 INFO L78 Accepts]: Start accepts. Automaton has 5242 states and 24764 transitions. Word has length 29 [2021-06-05 03:39:47,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:47,357 INFO L482 AbstractCegarLoop]: Abstraction has 5242 states and 24764 transitions. [2021-06-05 03:39:47,357 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:47,357 INFO L276 IsEmpty]: Start isEmpty. Operand 5242 states and 24764 transitions. [2021-06-05 03:39:47,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:47,366 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:47,366 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:47,366 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2021-06-05 03:39:47,366 INFO L430 AbstractCegarLoop]: === Iteration 112 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:47,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:47,366 INFO L82 PathProgramCache]: Analyzing trace with hash -193110265, now seen corresponding path program 107 times [2021-06-05 03:39:47,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:47,366 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668921812] [2021-06-05 03:39:47,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:47,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:47,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:47,485 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:47,485 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668921812] [2021-06-05 03:39:47,486 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668921812] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:47,486 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:47,486 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:47,486 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453608116] [2021-06-05 03:39:47,486 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:47,486 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:47,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:47,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:47,486 INFO L87 Difference]: Start difference. First operand 5242 states and 24764 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:47,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:47,607 INFO L93 Difference]: Finished difference Result 11881 states and 52876 transitions. [2021-06-05 03:39:47,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:47,607 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:47,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:47,635 INFO L225 Difference]: With dead ends: 11881 [2021-06-05 03:39:47,635 INFO L226 Difference]: Without dead ends: 11404 [2021-06-05 03:39:47,636 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 142.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:47,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11404 states. [2021-06-05 03:39:47,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11404 to 5320. [2021-06-05 03:39:47,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5320 states, 5319 states have (on average 4.710847903741305) internal successors, (25057), 5319 states have internal predecessors, (25057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:47,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5320 states to 5320 states and 25057 transitions. [2021-06-05 03:39:47,860 INFO L78 Accepts]: Start accepts. Automaton has 5320 states and 25057 transitions. Word has length 29 [2021-06-05 03:39:47,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:47,860 INFO L482 AbstractCegarLoop]: Abstraction has 5320 states and 25057 transitions. [2021-06-05 03:39:47,861 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:47,861 INFO L276 IsEmpty]: Start isEmpty. Operand 5320 states and 25057 transitions. [2021-06-05 03:39:47,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:47,869 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:47,869 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:47,869 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2021-06-05 03:39:47,870 INFO L430 AbstractCegarLoop]: === Iteration 113 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:47,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:47,870 INFO L82 PathProgramCache]: Analyzing trace with hash 1985777381, now seen corresponding path program 108 times [2021-06-05 03:39:47,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:47,870 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691995466] [2021-06-05 03:39:47,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:47,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:48,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:48,023 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:48,023 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691995466] [2021-06-05 03:39:48,023 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691995466] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:48,024 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:48,024 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:48,024 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644524401] [2021-06-05 03:39:48,024 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:48,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:48,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:48,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:48,024 INFO L87 Difference]: Start difference. First operand 5320 states and 25057 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:48,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:48,153 INFO L93 Difference]: Finished difference Result 11879 states and 52793 transitions. [2021-06-05 03:39:48,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:48,153 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:48,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:48,181 INFO L225 Difference]: With dead ends: 11879 [2021-06-05 03:39:48,181 INFO L226 Difference]: Without dead ends: 11239 [2021-06-05 03:39:48,181 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 174.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:48,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11239 states. [2021-06-05 03:39:48,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11239 to 5155. [2021-06-05 03:39:48,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5155 states, 5154 states have (on average 4.745246410554909) internal successors, (24457), 5154 states have internal predecessors, (24457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:48,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 24457 transitions. [2021-06-05 03:39:48,408 INFO L78 Accepts]: Start accepts. Automaton has 5155 states and 24457 transitions. Word has length 29 [2021-06-05 03:39:48,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:48,408 INFO L482 AbstractCegarLoop]: Abstraction has 5155 states and 24457 transitions. [2021-06-05 03:39:48,408 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:48,408 INFO L276 IsEmpty]: Start isEmpty. Operand 5155 states and 24457 transitions. [2021-06-05 03:39:48,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:48,417 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:48,417 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:48,417 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2021-06-05 03:39:48,417 INFO L430 AbstractCegarLoop]: === Iteration 114 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:48,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:48,418 INFO L82 PathProgramCache]: Analyzing trace with hash 1831495303, now seen corresponding path program 109 times [2021-06-05 03:39:48,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:48,418 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813226665] [2021-06-05 03:39:48,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:48,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:48,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:48,554 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:48,554 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813226665] [2021-06-05 03:39:48,554 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813226665] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:48,554 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:48,554 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:48,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260921320] [2021-06-05 03:39:48,555 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:48,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:48,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:48,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:48,555 INFO L87 Difference]: Start difference. First operand 5155 states and 24457 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:48,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:48,658 INFO L93 Difference]: Finished difference Result 11751 states and 52344 transitions. [2021-06-05 03:39:48,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:48,658 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:48,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:48,686 INFO L225 Difference]: With dead ends: 11751 [2021-06-05 03:39:48,686 INFO L226 Difference]: Without dead ends: 11209 [2021-06-05 03:39:48,686 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 140.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:48,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11209 states. [2021-06-05 03:39:48,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11209 to 5275. [2021-06-05 03:39:48,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5275 states, 5274 states have (on average 4.730565036025787) internal successors, (24949), 5274 states have internal predecessors, (24949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:48,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5275 states to 5275 states and 24949 transitions. [2021-06-05 03:39:48,911 INFO L78 Accepts]: Start accepts. Automaton has 5275 states and 24949 transitions. Word has length 29 [2021-06-05 03:39:48,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:48,911 INFO L482 AbstractCegarLoop]: Abstraction has 5275 states and 24949 transitions. [2021-06-05 03:39:48,911 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:48,912 INFO L276 IsEmpty]: Start isEmpty. Operand 5275 states and 24949 transitions. [2021-06-05 03:39:48,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:48,920 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:48,920 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:48,920 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2021-06-05 03:39:48,921 INFO L430 AbstractCegarLoop]: === Iteration 115 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:48,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:48,921 INFO L82 PathProgramCache]: Analyzing trace with hash 143249031, now seen corresponding path program 110 times [2021-06-05 03:39:48,921 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:48,921 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800730379] [2021-06-05 03:39:48,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:48,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:49,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:49,068 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:49,068 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800730379] [2021-06-05 03:39:49,068 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800730379] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:49,068 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:49,068 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:49,068 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734532720] [2021-06-05 03:39:49,069 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:49,069 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:49,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:49,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:49,069 INFO L87 Difference]: Start difference. First operand 5275 states and 24949 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:49,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:49,172 INFO L93 Difference]: Finished difference Result 11624 states and 51737 transitions. [2021-06-05 03:39:49,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:49,172 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:49,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:49,199 INFO L225 Difference]: With dead ends: 11624 [2021-06-05 03:39:49,199 INFO L226 Difference]: Without dead ends: 11129 [2021-06-05 03:39:49,199 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 149.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:49,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11129 states. [2021-06-05 03:39:49,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11129 to 5195. [2021-06-05 03:39:49,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5195 states, 5194 states have (on average 4.7402772429726605) internal successors, (24621), 5194 states have internal predecessors, (24621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:49,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5195 states to 5195 states and 24621 transitions. [2021-06-05 03:39:49,429 INFO L78 Accepts]: Start accepts. Automaton has 5195 states and 24621 transitions. Word has length 29 [2021-06-05 03:39:49,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:49,429 INFO L482 AbstractCegarLoop]: Abstraction has 5195 states and 24621 transitions. [2021-06-05 03:39:49,429 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:49,429 INFO L276 IsEmpty]: Start isEmpty. Operand 5195 states and 24621 transitions. [2021-06-05 03:39:49,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:49,437 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:49,438 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:49,438 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2021-06-05 03:39:49,438 INFO L430 AbstractCegarLoop]: === Iteration 116 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:49,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:49,438 INFO L82 PathProgramCache]: Analyzing trace with hash -191566235, now seen corresponding path program 111 times [2021-06-05 03:39:49,438 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:49,438 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266019539] [2021-06-05 03:39:49,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:49,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:49,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:49,566 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:49,566 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266019539] [2021-06-05 03:39:49,566 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266019539] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:49,566 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:49,566 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:49,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202328793] [2021-06-05 03:39:49,566 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:49,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:49,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:49,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:49,567 INFO L87 Difference]: Start difference. First operand 5195 states and 24621 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:49,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:49,681 INFO L93 Difference]: Finished difference Result 11841 states and 52715 transitions. [2021-06-05 03:39:49,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:49,682 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:49,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:49,709 INFO L225 Difference]: With dead ends: 11841 [2021-06-05 03:39:49,709 INFO L226 Difference]: Without dead ends: 11299 [2021-06-05 03:39:49,709 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 133.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:49,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11299 states. [2021-06-05 03:39:49,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11299 to 5305. [2021-06-05 03:39:49,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5305 states, 5304 states have (on average 4.718325791855204) internal successors, (25026), 5304 states have internal predecessors, (25026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:49,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5305 states to 5305 states and 25026 transitions. [2021-06-05 03:39:49,934 INFO L78 Accepts]: Start accepts. Automaton has 5305 states and 25026 transitions. Word has length 29 [2021-06-05 03:39:49,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:49,934 INFO L482 AbstractCegarLoop]: Abstraction has 5305 states and 25026 transitions. [2021-06-05 03:39:49,934 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:49,935 INFO L276 IsEmpty]: Start isEmpty. Operand 5305 states and 25026 transitions. [2021-06-05 03:39:49,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:49,943 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:49,943 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:49,943 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2021-06-05 03:39:49,943 INFO L430 AbstractCegarLoop]: === Iteration 117 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:49,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:49,944 INFO L82 PathProgramCache]: Analyzing trace with hash 1178054279, now seen corresponding path program 112 times [2021-06-05 03:39:49,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:49,944 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030918468] [2021-06-05 03:39:49,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:49,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:50,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:50,073 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:50,073 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030918468] [2021-06-05 03:39:50,073 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030918468] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:50,073 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:50,073 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:50,073 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62656239] [2021-06-05 03:39:50,073 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:50,073 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:50,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:50,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:50,073 INFO L87 Difference]: Start difference. First operand 5305 states and 25026 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:50,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:50,210 INFO L93 Difference]: Finished difference Result 11774 states and 52342 transitions. [2021-06-05 03:39:50,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:50,210 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:50,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:50,237 INFO L225 Difference]: With dead ends: 11774 [2021-06-05 03:39:50,237 INFO L226 Difference]: Without dead ends: 11189 [2021-06-05 03:39:50,237 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 149.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:50,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11189 states. [2021-06-05 03:39:50,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11189 to 5195. [2021-06-05 03:39:50,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5195 states, 5194 states have (on average 4.73257604928764) internal successors, (24581), 5194 states have internal predecessors, (24581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:50,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5195 states to 5195 states and 24581 transitions. [2021-06-05 03:39:50,463 INFO L78 Accepts]: Start accepts. Automaton has 5195 states and 24581 transitions. Word has length 29 [2021-06-05 03:39:50,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:50,463 INFO L482 AbstractCegarLoop]: Abstraction has 5195 states and 24581 transitions. [2021-06-05 03:39:50,463 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:50,463 INFO L276 IsEmpty]: Start isEmpty. Operand 5195 states and 24581 transitions. [2021-06-05 03:39:50,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:50,472 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:50,472 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:50,472 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2021-06-05 03:39:50,472 INFO L430 AbstractCegarLoop]: === Iteration 118 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:50,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:50,473 INFO L82 PathProgramCache]: Analyzing trace with hash 533210759, now seen corresponding path program 113 times [2021-06-05 03:39:50,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:50,473 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073263033] [2021-06-05 03:39:50,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:50,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:50,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:50,625 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:50,626 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073263033] [2021-06-05 03:39:50,626 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073263033] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:50,626 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:50,626 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:50,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093516133] [2021-06-05 03:39:50,626 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:50,626 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:50,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:50,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:50,626 INFO L87 Difference]: Start difference. First operand 5195 states and 24581 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:50,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:50,739 INFO L93 Difference]: Finished difference Result 11525 states and 51330 transitions. [2021-06-05 03:39:50,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:50,739 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:50,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:50,766 INFO L225 Difference]: With dead ends: 11525 [2021-06-05 03:39:50,766 INFO L226 Difference]: Without dead ends: 11110 [2021-06-05 03:39:50,766 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 158.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:50,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11110 states. [2021-06-05 03:39:51,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11110 to 5243. [2021-06-05 03:39:51,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5243 states, 5242 states have (on average 4.722815719191148) internal successors, (24757), 5242 states have internal predecessors, (24757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:51,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5243 states to 5243 states and 24757 transitions. [2021-06-05 03:39:51,044 INFO L78 Accepts]: Start accepts. Automaton has 5243 states and 24757 transitions. Word has length 29 [2021-06-05 03:39:51,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:51,044 INFO L482 AbstractCegarLoop]: Abstraction has 5243 states and 24757 transitions. [2021-06-05 03:39:51,044 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:51,044 INFO L276 IsEmpty]: Start isEmpty. Operand 5243 states and 24757 transitions. [2021-06-05 03:39:51,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:51,053 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:51,053 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:51,053 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2021-06-05 03:39:51,053 INFO L430 AbstractCegarLoop]: === Iteration 119 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:51,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:51,054 INFO L82 PathProgramCache]: Analyzing trace with hash -313586203, now seen corresponding path program 114 times [2021-06-05 03:39:51,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:51,054 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774908143] [2021-06-05 03:39:51,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:51,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:51,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:51,188 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:51,188 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774908143] [2021-06-05 03:39:51,188 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774908143] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:51,188 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:51,188 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:51,188 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759457087] [2021-06-05 03:39:51,188 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:51,188 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:51,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:51,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:51,188 INFO L87 Difference]: Start difference. First operand 5243 states and 24757 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:51,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:51,307 INFO L93 Difference]: Finished difference Result 11585 states and 51546 transitions. [2021-06-05 03:39:51,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:51,307 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:51,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:51,334 INFO L225 Difference]: With dead ends: 11585 [2021-06-05 03:39:51,334 INFO L226 Difference]: Without dead ends: 11022 [2021-06-05 03:39:51,334 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 156.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:51,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11022 states. [2021-06-05 03:39:51,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11022 to 5155. [2021-06-05 03:39:51,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5155 states, 5154 states have (on average 4.741365929375243) internal successors, (24437), 5154 states have internal predecessors, (24437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:51,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 24437 transitions. [2021-06-05 03:39:51,556 INFO L78 Accepts]: Start accepts. Automaton has 5155 states and 24437 transitions. Word has length 29 [2021-06-05 03:39:51,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:51,556 INFO L482 AbstractCegarLoop]: Abstraction has 5155 states and 24437 transitions. [2021-06-05 03:39:51,556 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:51,556 INFO L276 IsEmpty]: Start isEmpty. Operand 5155 states and 24437 transitions. [2021-06-05 03:39:51,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:51,564 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:51,565 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:51,565 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2021-06-05 03:39:51,565 INFO L430 AbstractCegarLoop]: === Iteration 120 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:51,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:51,565 INFO L82 PathProgramCache]: Analyzing trace with hash 1911016041, now seen corresponding path program 115 times [2021-06-05 03:39:51,565 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:51,565 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523037788] [2021-06-05 03:39:51,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:51,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:51,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:51,718 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:51,718 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523037788] [2021-06-05 03:39:51,718 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523037788] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:51,718 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:51,718 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:51,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753030304] [2021-06-05 03:39:51,719 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:51,719 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:51,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:51,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:51,719 INFO L87 Difference]: Start difference. First operand 5155 states and 24437 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:51,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:51,833 INFO L93 Difference]: Finished difference Result 11444 states and 51038 transitions. [2021-06-05 03:39:51,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:51,833 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:51,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:51,860 INFO L225 Difference]: With dead ends: 11444 [2021-06-05 03:39:51,860 INFO L226 Difference]: Without dead ends: 10967 [2021-06-05 03:39:51,860 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 160.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:51,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10967 states. [2021-06-05 03:39:52,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10967 to 5227. [2021-06-05 03:39:52,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5227 states, 5226 states have (on average 4.733448143895905) internal successors, (24737), 5226 states have internal predecessors, (24737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:52,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5227 states to 5227 states and 24737 transitions. [2021-06-05 03:39:52,082 INFO L78 Accepts]: Start accepts. Automaton has 5227 states and 24737 transitions. Word has length 29 [2021-06-05 03:39:52,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:52,082 INFO L482 AbstractCegarLoop]: Abstraction has 5227 states and 24737 transitions. [2021-06-05 03:39:52,082 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:52,082 INFO L276 IsEmpty]: Start isEmpty. Operand 5227 states and 24737 transitions. [2021-06-05 03:39:52,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:52,091 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:52,091 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:52,091 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2021-06-05 03:39:52,091 INFO L430 AbstractCegarLoop]: === Iteration 121 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:52,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:52,091 INFO L82 PathProgramCache]: Analyzing trace with hash 1064219079, now seen corresponding path program 116 times [2021-06-05 03:39:52,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:52,092 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611953382] [2021-06-05 03:39:52,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:52,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:52,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:52,233 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:52,233 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611953382] [2021-06-05 03:39:52,233 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611953382] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:52,233 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:52,233 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:52,233 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579193294] [2021-06-05 03:39:52,234 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:52,234 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:52,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:52,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:52,234 INFO L87 Difference]: Start difference. First operand 5227 states and 24737 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:52,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:52,329 INFO L93 Difference]: Finished difference Result 11382 states and 50721 transitions. [2021-06-05 03:39:52,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:52,329 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:52,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:52,355 INFO L225 Difference]: With dead ends: 11382 [2021-06-05 03:39:52,356 INFO L226 Difference]: Without dead ends: 10919 [2021-06-05 03:39:52,356 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 144.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:52,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10919 states. [2021-06-05 03:39:52,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10919 to 5179. [2021-06-05 03:39:52,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.738702201622248) internal successors, (24537), 5178 states have internal predecessors, (24537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:52,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24537 transitions. [2021-06-05 03:39:52,589 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24537 transitions. Word has length 29 [2021-06-05 03:39:52,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:52,589 INFO L482 AbstractCegarLoop]: Abstraction has 5179 states and 24537 transitions. [2021-06-05 03:39:52,589 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:52,589 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24537 transitions. [2021-06-05 03:39:52,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:52,598 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:52,598 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:52,598 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2021-06-05 03:39:52,598 INFO L430 AbstractCegarLoop]: === Iteration 122 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:52,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:52,599 INFO L82 PathProgramCache]: Analyzing trace with hash -112045497, now seen corresponding path program 117 times [2021-06-05 03:39:52,599 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:52,599 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667072746] [2021-06-05 03:39:52,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:52,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:52,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:52,728 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:52,728 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667072746] [2021-06-05 03:39:52,728 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667072746] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:52,728 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:52,728 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:52,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555743112] [2021-06-05 03:39:52,728 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:52,729 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:52,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:52,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:52,729 INFO L87 Difference]: Start difference. First operand 5179 states and 24537 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:52,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:52,844 INFO L93 Difference]: Finished difference Result 11534 states and 51425 transitions. [2021-06-05 03:39:52,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:52,844 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:52,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:52,870 INFO L225 Difference]: With dead ends: 11534 [2021-06-05 03:39:52,871 INFO L226 Difference]: Without dead ends: 11057 [2021-06-05 03:39:52,871 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 147.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:52,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11057 states. [2021-06-05 03:39:53,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11057 to 5257. [2021-06-05 03:39:53,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5257 states, 5256 states have (on average 4.724124809741248) internal successors, (24830), 5256 states have internal predecessors, (24830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:53,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5257 states to 5257 states and 24830 transitions. [2021-06-05 03:39:53,100 INFO L78 Accepts]: Start accepts. Automaton has 5257 states and 24830 transitions. Word has length 29 [2021-06-05 03:39:53,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:53,100 INFO L482 AbstractCegarLoop]: Abstraction has 5257 states and 24830 transitions. [2021-06-05 03:39:53,100 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:53,100 INFO L276 IsEmpty]: Start isEmpty. Operand 5257 states and 24830 transitions. [2021-06-05 03:39:53,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:53,109 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:53,109 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:53,109 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2021-06-05 03:39:53,109 INFO L430 AbstractCegarLoop]: === Iteration 123 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:53,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:53,109 INFO L82 PathProgramCache]: Analyzing trace with hash -908072377, now seen corresponding path program 118 times [2021-06-05 03:39:53,109 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:53,109 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571028590] [2021-06-05 03:39:53,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:53,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:53,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:53,242 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:53,242 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571028590] [2021-06-05 03:39:53,242 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571028590] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:53,242 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:53,242 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:53,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709479143] [2021-06-05 03:39:53,242 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:53,242 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:53,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:53,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:53,242 INFO L87 Difference]: Start difference. First operand 5257 states and 24830 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:53,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:53,359 INFO L93 Difference]: Finished difference Result 11532 states and 51342 transitions. [2021-06-05 03:39:53,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:53,359 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:53,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:53,386 INFO L225 Difference]: With dead ends: 11532 [2021-06-05 03:39:53,387 INFO L226 Difference]: Without dead ends: 10979 [2021-06-05 03:39:53,387 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 152.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:53,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10979 states. [2021-06-05 03:39:53,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10979 to 5179. [2021-06-05 03:39:53,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.734067207415991) internal successors, (24513), 5178 states have internal predecessors, (24513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:53,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24513 transitions. [2021-06-05 03:39:53,616 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24513 transitions. Word has length 29 [2021-06-05 03:39:53,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:53,616 INFO L482 AbstractCegarLoop]: Abstraction has 5179 states and 24513 transitions. [2021-06-05 03:39:53,616 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:53,616 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24513 transitions. [2021-06-05 03:39:53,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:53,625 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:53,625 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:53,625 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2021-06-05 03:39:53,625 INFO L430 AbstractCegarLoop]: === Iteration 124 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:53,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:53,625 INFO L82 PathProgramCache]: Analyzing trace with hash -968793563, now seen corresponding path program 119 times [2021-06-05 03:39:53,625 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:53,625 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54313218] [2021-06-05 03:39:53,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:53,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:53,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:53,780 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:53,780 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54313218] [2021-06-05 03:39:53,780 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54313218] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:53,780 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:53,780 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:53,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046686147] [2021-06-05 03:39:53,781 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:53,781 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:53,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:53,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:53,781 INFO L87 Difference]: Start difference. First operand 5179 states and 24513 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:53,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:53,879 INFO L93 Difference]: Finished difference Result 11380 states and 50716 transitions. [2021-06-05 03:39:53,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:53,880 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:53,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:53,908 INFO L225 Difference]: With dead ends: 11380 [2021-06-05 03:39:53,909 INFO L226 Difference]: Without dead ends: 10965 [2021-06-05 03:39:53,909 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 156.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:54,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10965 states. [2021-06-05 03:39:54,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10965 to 5227. [2021-06-05 03:39:54,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5227 states, 5226 states have (on average 4.724263298890165) internal successors, (24689), 5226 states have internal predecessors, (24689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:54,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5227 states to 5227 states and 24689 transitions. [2021-06-05 03:39:54,138 INFO L78 Accepts]: Start accepts. Automaton has 5227 states and 24689 transitions. Word has length 29 [2021-06-05 03:39:54,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:54,139 INFO L482 AbstractCegarLoop]: Abstraction has 5227 states and 24689 transitions. [2021-06-05 03:39:54,139 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:54,139 INFO L276 IsEmpty]: Start isEmpty. Operand 5227 states and 24689 transitions. [2021-06-05 03:39:54,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:54,147 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:54,147 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:54,147 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2021-06-05 03:39:54,147 INFO L430 AbstractCegarLoop]: === Iteration 125 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:54,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:54,148 INFO L82 PathProgramCache]: Analyzing trace with hash -1449695609, now seen corresponding path program 120 times [2021-06-05 03:39:54,148 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:54,148 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162506688] [2021-06-05 03:39:54,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:54,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:54,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:54,283 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:54,283 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162506688] [2021-06-05 03:39:54,283 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162506688] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:54,283 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:54,283 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:54,283 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414180648] [2021-06-05 03:39:54,283 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:54,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:54,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:54,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:54,283 INFO L87 Difference]: Start difference. First operand 5227 states and 24689 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:54,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:54,444 INFO L93 Difference]: Finished difference Result 11440 states and 50932 transitions. [2021-06-05 03:39:54,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:54,445 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:54,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:54,478 INFO L225 Difference]: With dead ends: 11440 [2021-06-05 03:39:54,478 INFO L226 Difference]: Without dead ends: 10841 [2021-06-05 03:39:54,479 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 163.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:54,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10841 states. [2021-06-05 03:39:54,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10841 to 5103. [2021-06-05 03:39:54,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5103 states, 5102 states have (on average 4.7614660917287335) internal successors, (24293), 5102 states have internal predecessors, (24293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:54,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5103 states to 5103 states and 24293 transitions. [2021-06-05 03:39:54,721 INFO L78 Accepts]: Start accepts. Automaton has 5103 states and 24293 transitions. Word has length 29 [2021-06-05 03:39:54,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:54,721 INFO L482 AbstractCegarLoop]: Abstraction has 5103 states and 24293 transitions. [2021-06-05 03:39:54,721 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:54,722 INFO L276 IsEmpty]: Start isEmpty. Operand 5103 states and 24293 transitions. [2021-06-05 03:39:54,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:54,730 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:54,730 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:54,731 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2021-06-05 03:39:54,731 INFO L430 AbstractCegarLoop]: === Iteration 126 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:54,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:54,731 INFO L82 PathProgramCache]: Analyzing trace with hash 483927435, now seen corresponding path program 121 times [2021-06-05 03:39:54,731 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:54,731 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847809273] [2021-06-05 03:39:54,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:54,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:54,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:54,859 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:54,859 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847809273] [2021-06-05 03:39:54,860 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847809273] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:54,860 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:54,860 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:54,860 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002737142] [2021-06-05 03:39:54,860 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:54,860 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:54,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:54,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:54,860 INFO L87 Difference]: Start difference. First operand 5103 states and 24293 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:54,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:54,975 INFO L93 Difference]: Finished difference Result 11930 states and 53371 transitions. [2021-06-05 03:39:54,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:54,975 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:54,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:55,004 INFO L225 Difference]: With dead ends: 11930 [2021-06-05 03:39:55,004 INFO L226 Difference]: Without dead ends: 11515 [2021-06-05 03:39:55,004 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 150.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:55,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11515 states. [2021-06-05 03:39:55,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11515 to 5297. [2021-06-05 03:39:55,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5297 states, 5296 states have (on average 4.751888217522659) internal successors, (25166), 5296 states have internal predecessors, (25166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:55,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5297 states to 5297 states and 25166 transitions. [2021-06-05 03:39:55,241 INFO L78 Accepts]: Start accepts. Automaton has 5297 states and 25166 transitions. Word has length 29 [2021-06-05 03:39:55,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:55,241 INFO L482 AbstractCegarLoop]: Abstraction has 5297 states and 25166 transitions. [2021-06-05 03:39:55,241 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:55,241 INFO L276 IsEmpty]: Start isEmpty. Operand 5297 states and 25166 transitions. [2021-06-05 03:39:55,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:55,250 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:55,250 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:55,250 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2021-06-05 03:39:55,250 INFO L430 AbstractCegarLoop]: === Iteration 127 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:55,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:55,250 INFO L82 PathProgramCache]: Analyzing trace with hash -2056219253, now seen corresponding path program 122 times [2021-06-05 03:39:55,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:55,250 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018698644] [2021-06-05 03:39:55,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:55,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:55,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:55,385 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:55,386 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018698644] [2021-06-05 03:39:55,386 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018698644] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:55,386 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:55,386 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:55,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254938802] [2021-06-05 03:39:55,386 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:55,386 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:55,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:55,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:55,386 INFO L87 Difference]: Start difference. First operand 5297 states and 25166 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:55,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:55,485 INFO L93 Difference]: Finished difference Result 12057 states and 53850 transitions. [2021-06-05 03:39:55,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:55,485 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:55,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:55,514 INFO L225 Difference]: With dead ends: 12057 [2021-06-05 03:39:55,514 INFO L226 Difference]: Without dead ends: 11435 [2021-06-05 03:39:55,514 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 137.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:55,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11435 states. [2021-06-05 03:39:55,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11435 to 5217. [2021-06-05 03:39:55,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5217 states, 5216 states have (on average 4.755751533742331) internal successors, (24806), 5216 states have internal predecessors, (24806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:55,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5217 states to 5217 states and 24806 transitions. [2021-06-05 03:39:55,742 INFO L78 Accepts]: Start accepts. Automaton has 5217 states and 24806 transitions. Word has length 29 [2021-06-05 03:39:55,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:55,742 INFO L482 AbstractCegarLoop]: Abstraction has 5217 states and 24806 transitions. [2021-06-05 03:39:55,742 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:55,742 INFO L276 IsEmpty]: Start isEmpty. Operand 5217 states and 24806 transitions. [2021-06-05 03:39:55,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:55,751 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:55,751 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:55,751 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2021-06-05 03:39:55,751 INFO L430 AbstractCegarLoop]: === Iteration 128 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:55,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:55,751 INFO L82 PathProgramCache]: Analyzing trace with hash 264125579, now seen corresponding path program 123 times [2021-06-05 03:39:55,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:55,752 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806986097] [2021-06-05 03:39:55,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:55,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:55,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:55,889 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:55,889 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806986097] [2021-06-05 03:39:55,889 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806986097] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:55,889 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:55,889 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:55,889 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398869656] [2021-06-05 03:39:55,889 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:55,889 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:55,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:55,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:55,890 INFO L87 Difference]: Start difference. First operand 5217 states and 24806 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:56,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:56,024 INFO L93 Difference]: Finished difference Result 11833 states and 52929 transitions. [2021-06-05 03:39:56,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:56,024 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:56,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:56,053 INFO L225 Difference]: With dead ends: 11833 [2021-06-05 03:39:56,053 INFO L226 Difference]: Without dead ends: 11418 [2021-06-05 03:39:56,054 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 152.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:56,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11418 states. [2021-06-05 03:39:56,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11418 to 5265. [2021-06-05 03:39:56,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5265 states, 5264 states have (on average 4.74582066869301) internal successors, (24982), 5264 states have internal predecessors, (24982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:56,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5265 states to 5265 states and 24982 transitions. [2021-06-05 03:39:56,285 INFO L78 Accepts]: Start accepts. Automaton has 5265 states and 24982 transitions. Word has length 29 [2021-06-05 03:39:56,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:56,286 INFO L482 AbstractCegarLoop]: Abstraction has 5265 states and 24982 transitions. [2021-06-05 03:39:56,286 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:56,286 INFO L276 IsEmpty]: Start isEmpty. Operand 5265 states and 24982 transitions. [2021-06-05 03:39:56,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:56,295 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:56,295 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:56,295 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2021-06-05 03:39:56,295 INFO L430 AbstractCegarLoop]: === Iteration 129 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:56,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:56,295 INFO L82 PathProgramCache]: Analyzing trace with hash 980788525, now seen corresponding path program 124 times [2021-06-05 03:39:56,295 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:56,295 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418689602] [2021-06-05 03:39:56,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:56,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:56,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:56,429 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:56,429 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418689602] [2021-06-05 03:39:56,429 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418689602] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:56,430 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:56,430 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:56,430 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640489436] [2021-06-05 03:39:56,430 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:56,430 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:56,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:56,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:56,430 INFO L87 Difference]: Start difference. First operand 5265 states and 24982 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:56,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:56,551 INFO L93 Difference]: Finished difference Result 11895 states and 53150 transitions. [2021-06-05 03:39:56,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:56,551 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:56,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:56,579 INFO L225 Difference]: With dead ends: 11895 [2021-06-05 03:39:56,580 INFO L226 Difference]: Without dead ends: 11370 [2021-06-05 03:39:56,580 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 154.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:56,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11370 states. [2021-06-05 03:39:56,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11370 to 5217. [2021-06-05 03:39:56,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5217 states, 5216 states have (on average 4.751150306748467) internal successors, (24782), 5216 states have internal predecessors, (24782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:56,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5217 states to 5217 states and 24782 transitions. [2021-06-05 03:39:56,807 INFO L78 Accepts]: Start accepts. Automaton has 5217 states and 24782 transitions. Word has length 29 [2021-06-05 03:39:56,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:56,807 INFO L482 AbstractCegarLoop]: Abstraction has 5217 states and 24782 transitions. [2021-06-05 03:39:56,807 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:56,807 INFO L276 IsEmpty]: Start isEmpty. Operand 5217 states and 24782 transitions. [2021-06-05 03:39:56,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:56,817 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:56,817 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:56,817 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2021-06-05 03:39:56,817 INFO L430 AbstractCegarLoop]: === Iteration 130 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:56,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:56,817 INFO L82 PathProgramCache]: Analyzing trace with hash -1230953171, now seen corresponding path program 125 times [2021-06-05 03:39:56,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:56,817 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743432310] [2021-06-05 03:39:56,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:56,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:56,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:56,943 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:56,943 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743432310] [2021-06-05 03:39:56,943 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743432310] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:56,943 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:56,943 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:56,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285591175] [2021-06-05 03:39:56,943 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:56,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:56,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:56,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:56,944 INFO L87 Difference]: Start difference. First operand 5217 states and 24782 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:57,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:57,047 INFO L93 Difference]: Finished difference Result 12182 states and 54365 transitions. [2021-06-05 03:39:57,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:57,047 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:57,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:57,075 INFO L225 Difference]: With dead ends: 12182 [2021-06-05 03:39:57,075 INFO L226 Difference]: Without dead ends: 11640 [2021-06-05 03:39:57,076 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 129.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:57,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11640 states. [2021-06-05 03:39:57,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11640 to 5360. [2021-06-05 03:39:57,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5360 states, 5359 states have (on average 4.721216644896436) internal successors, (25301), 5359 states have internal predecessors, (25301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:57,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5360 states to 5360 states and 25301 transitions. [2021-06-05 03:39:57,312 INFO L78 Accepts]: Start accepts. Automaton has 5360 states and 25301 transitions. Word has length 29 [2021-06-05 03:39:57,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:57,312 INFO L482 AbstractCegarLoop]: Abstraction has 5360 states and 25301 transitions. [2021-06-05 03:39:57,312 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:57,312 INFO L276 IsEmpty]: Start isEmpty. Operand 5360 states and 25301 transitions. [2021-06-05 03:39:57,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:57,321 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:57,321 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:57,321 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2021-06-05 03:39:57,321 INFO L430 AbstractCegarLoop]: === Iteration 131 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:57,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:57,321 INFO L82 PathProgramCache]: Analyzing trace with hash 1020677131, now seen corresponding path program 126 times [2021-06-05 03:39:57,322 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:57,322 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774234185] [2021-06-05 03:39:57,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:57,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:57,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:57,444 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:57,444 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774234185] [2021-06-05 03:39:57,444 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774234185] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:57,444 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:57,444 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:57,444 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122034484] [2021-06-05 03:39:57,445 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:57,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:57,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:57,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:57,445 INFO L87 Difference]: Start difference. First operand 5360 states and 25301 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:57,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:57,573 INFO L93 Difference]: Finished difference Result 12117 states and 53996 transitions. [2021-06-05 03:39:57,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:57,573 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:57,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:57,602 INFO L225 Difference]: With dead ends: 12117 [2021-06-05 03:39:57,602 INFO L226 Difference]: Without dead ends: 11441 [2021-06-05 03:39:57,602 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 145.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:57,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11441 states. [2021-06-05 03:39:57,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11441 to 5161. [2021-06-05 03:39:57,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.757751937984496) internal successors, (24550), 5160 states have internal predecessors, (24550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:57,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24550 transitions. [2021-06-05 03:39:57,830 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24550 transitions. Word has length 29 [2021-06-05 03:39:57,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:57,830 INFO L482 AbstractCegarLoop]: Abstraction has 5161 states and 24550 transitions. [2021-06-05 03:39:57,830 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:57,830 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24550 transitions. [2021-06-05 03:39:57,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:57,839 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:57,839 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:57,839 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2021-06-05 03:39:57,839 INFO L430 AbstractCegarLoop]: === Iteration 132 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:57,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:57,839 INFO L82 PathProgramCache]: Analyzing trace with hash -1606166005, now seen corresponding path program 127 times [2021-06-05 03:39:57,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:57,840 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601201362] [2021-06-05 03:39:57,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:57,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:57,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:57,971 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:57,971 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601201362] [2021-06-05 03:39:57,971 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601201362] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:57,971 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:57,971 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:57,971 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564069446] [2021-06-05 03:39:57,971 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:57,971 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:57,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:57,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:57,971 INFO L87 Difference]: Start difference. First operand 5161 states and 24550 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:58,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:58,089 INFO L93 Difference]: Finished difference Result 11879 states and 53159 transitions. [2021-06-05 03:39:58,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:58,090 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:58,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:58,118 INFO L225 Difference]: With dead ends: 11879 [2021-06-05 03:39:58,118 INFO L226 Difference]: Without dead ends: 11464 [2021-06-05 03:39:58,119 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 155.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:58,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11464 states. [2021-06-05 03:39:58,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11464 to 5281. [2021-06-05 03:39:58,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5281 states, 5280 states have (on average 4.7488636363636365) internal successors, (25074), 5280 states have internal predecessors, (25074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:58,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5281 states to 5281 states and 25074 transitions. [2021-06-05 03:39:58,348 INFO L78 Accepts]: Start accepts. Automaton has 5281 states and 25074 transitions. Word has length 29 [2021-06-05 03:39:58,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:58,348 INFO L482 AbstractCegarLoop]: Abstraction has 5281 states and 25074 transitions. [2021-06-05 03:39:58,348 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:58,348 INFO L276 IsEmpty]: Start isEmpty. Operand 5281 states and 25074 transitions. [2021-06-05 03:39:58,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:58,357 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:58,357 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:58,357 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2021-06-05 03:39:58,357 INFO L430 AbstractCegarLoop]: === Iteration 133 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:58,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:58,357 INFO L82 PathProgramCache]: Analyzing trace with hash 148654603, now seen corresponding path program 128 times [2021-06-05 03:39:58,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:58,357 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669943501] [2021-06-05 03:39:58,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:58,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:58,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:58,492 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:58,492 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669943501] [2021-06-05 03:39:58,492 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669943501] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:58,492 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:58,492 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:58,492 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749059797] [2021-06-05 03:39:58,492 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:58,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:58,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:58,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:58,492 INFO L87 Difference]: Start difference. First operand 5281 states and 25074 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:58,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:58,592 INFO L93 Difference]: Finished difference Result 12006 states and 53638 transitions. [2021-06-05 03:39:58,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:58,592 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:58,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:58,620 INFO L225 Difference]: With dead ends: 12006 [2021-06-05 03:39:58,620 INFO L226 Difference]: Without dead ends: 11384 [2021-06-05 03:39:58,620 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 140.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:58,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11384 states. [2021-06-05 03:39:58,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11384 to 5201. [2021-06-05 03:39:58,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5201 states, 5200 states have (on average 4.752692307692308) internal successors, (24714), 5200 states have internal predecessors, (24714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:58,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5201 states to 5201 states and 24714 transitions. [2021-06-05 03:39:58,850 INFO L78 Accepts]: Start accepts. Automaton has 5201 states and 24714 transitions. Word has length 29 [2021-06-05 03:39:58,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:58,850 INFO L482 AbstractCegarLoop]: Abstraction has 5201 states and 24714 transitions. [2021-06-05 03:39:58,850 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:58,850 INFO L276 IsEmpty]: Start isEmpty. Operand 5201 states and 24714 transitions. [2021-06-05 03:39:58,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:58,859 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:58,859 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:58,859 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2021-06-05 03:39:58,859 INFO L430 AbstractCegarLoop]: === Iteration 134 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:58,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:58,860 INFO L82 PathProgramCache]: Analyzing trace with hash 801297833, now seen corresponding path program 129 times [2021-06-05 03:39:58,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:58,860 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982155396] [2021-06-05 03:39:58,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:58,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:59,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:59,005 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:59,005 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982155396] [2021-06-05 03:39:59,005 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982155396] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:59,005 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:59,005 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:59,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189513830] [2021-06-05 03:39:59,005 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:59,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:59,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:59,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:59,006 INFO L87 Difference]: Start difference. First operand 5201 states and 24714 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:59,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:59,129 INFO L93 Difference]: Finished difference Result 11780 states and 52712 transitions. [2021-06-05 03:39:59,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:59,130 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:59,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:59,166 INFO L225 Difference]: With dead ends: 11780 [2021-06-05 03:39:59,166 INFO L226 Difference]: Without dead ends: 11365 [2021-06-05 03:39:59,166 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 165.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:59,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11365 states. [2021-06-05 03:39:59,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11365 to 5249. [2021-06-05 03:39:59,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5249 states, 5248 states have (on average 4.742759146341464) internal successors, (24890), 5248 states have internal predecessors, (24890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:59,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5249 states to 5249 states and 24890 transitions. [2021-06-05 03:39:59,467 INFO L78 Accepts]: Start accepts. Automaton has 5249 states and 24890 transitions. Word has length 29 [2021-06-05 03:39:59,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:59,468 INFO L482 AbstractCegarLoop]: Abstraction has 5249 states and 24890 transitions. [2021-06-05 03:39:59,468 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:59,468 INFO L276 IsEmpty]: Start isEmpty. Operand 5249 states and 24890 transitions. [2021-06-05 03:39:59,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:39:59,477 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:39:59,477 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:39:59,477 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2021-06-05 03:39:59,477 INFO L430 AbstractCegarLoop]: === Iteration 135 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:39:59,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:39:59,477 INFO L82 PathProgramCache]: Analyzing trace with hash 286616907, now seen corresponding path program 130 times [2021-06-05 03:39:59,477 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:39:59,477 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545879474] [2021-06-05 03:39:59,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:39:59,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:39:59,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:39:59,621 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:39:59,621 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545879474] [2021-06-05 03:39:59,621 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545879474] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:39:59,621 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:39:59,621 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:39:59,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360292873] [2021-06-05 03:39:59,622 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:39:59,622 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:39:59,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:39:59,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:39:59,622 INFO L87 Difference]: Start difference. First operand 5249 states and 24890 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:59,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:39:59,742 INFO L93 Difference]: Finished difference Result 11840 states and 52928 transitions. [2021-06-05 03:39:59,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:39:59,743 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:39:59,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:39:59,770 INFO L225 Difference]: With dead ends: 11840 [2021-06-05 03:39:59,770 INFO L226 Difference]: Without dead ends: 11317 [2021-06-05 03:39:59,770 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 164.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:39:59,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11317 states. [2021-06-05 03:39:59,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11317 to 5201. [2021-06-05 03:39:59,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5201 states, 5200 states have (on average 4.748076923076923) internal successors, (24690), 5200 states have internal predecessors, (24690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:59,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5201 states to 5201 states and 24690 transitions. [2021-06-05 03:39:59,997 INFO L78 Accepts]: Start accepts. Automaton has 5201 states and 24690 transitions. Word has length 29 [2021-06-05 03:39:59,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:39:59,997 INFO L482 AbstractCegarLoop]: Abstraction has 5201 states and 24690 transitions. [2021-06-05 03:39:59,997 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:39:59,997 INFO L276 IsEmpty]: Start isEmpty. Operand 5201 states and 24690 transitions. [2021-06-05 03:40:00,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:00,006 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:00,006 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:00,006 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2021-06-05 03:40:00,006 INFO L430 AbstractCegarLoop]: === Iteration 136 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:00,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:00,007 INFO L82 PathProgramCache]: Analyzing trace with hash 1025445195, now seen corresponding path program 131 times [2021-06-05 03:40:00,007 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:00,007 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667758415] [2021-06-05 03:40:00,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:00,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:00,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:00,133 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:00,133 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667758415] [2021-06-05 03:40:00,133 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667758415] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:00,133 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:00,133 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:00,133 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896088756] [2021-06-05 03:40:00,133 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:00,133 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:00,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:00,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:00,133 INFO L87 Difference]: Start difference. First operand 5201 states and 24690 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:00,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:00,241 INFO L93 Difference]: Finished difference Result 12096 states and 54033 transitions. [2021-06-05 03:40:00,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:00,241 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:00,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:00,269 INFO L225 Difference]: With dead ends: 12096 [2021-06-05 03:40:00,269 INFO L226 Difference]: Without dead ends: 11554 [2021-06-05 03:40:00,269 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 132.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:00,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11554 states. [2021-06-05 03:40:00,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11554 to 5311. [2021-06-05 03:40:00,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5311 states, 5310 states have (on average 4.7259887005649714) internal successors, (25095), 5310 states have internal predecessors, (25095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:00,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5311 states to 5311 states and 25095 transitions. [2021-06-05 03:40:00,499 INFO L78 Accepts]: Start accepts. Automaton has 5311 states and 25095 transitions. Word has length 29 [2021-06-05 03:40:00,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:00,500 INFO L482 AbstractCegarLoop]: Abstraction has 5311 states and 25095 transitions. [2021-06-05 03:40:00,500 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:00,500 INFO L276 IsEmpty]: Start isEmpty. Operand 5311 states and 25095 transitions. [2021-06-05 03:40:00,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:00,561 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:00,561 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:00,561 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2021-06-05 03:40:00,561 INFO L430 AbstractCegarLoop]: === Iteration 137 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:00,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:00,562 INFO L82 PathProgramCache]: Analyzing trace with hash 284493097, now seen corresponding path program 132 times [2021-06-05 03:40:00,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:00,562 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010611876] [2021-06-05 03:40:00,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:00,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:00,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:00,685 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:00,685 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010611876] [2021-06-05 03:40:00,686 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010611876] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:00,686 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:00,686 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:00,686 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610153610] [2021-06-05 03:40:00,686 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:00,686 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:00,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:00,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:00,686 INFO L87 Difference]: Start difference. First operand 5311 states and 25095 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:00,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:00,809 INFO L93 Difference]: Finished difference Result 12029 states and 53660 transitions. [2021-06-05 03:40:00,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:00,809 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:00,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:00,837 INFO L225 Difference]: With dead ends: 12029 [2021-06-05 03:40:00,837 INFO L226 Difference]: Without dead ends: 11404 [2021-06-05 03:40:00,837 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 145.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:00,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11404 states. [2021-06-05 03:40:01,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11404 to 5161. [2021-06-05 03:40:01,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.753875968992248) internal successors, (24530), 5160 states have internal predecessors, (24530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:01,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24530 transitions. [2021-06-05 03:40:01,071 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24530 transitions. Word has length 29 [2021-06-05 03:40:01,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:01,071 INFO L482 AbstractCegarLoop]: Abstraction has 5161 states and 24530 transitions. [2021-06-05 03:40:01,071 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:01,071 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24530 transitions. [2021-06-05 03:40:01,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:01,080 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:01,080 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:01,080 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2021-06-05 03:40:01,080 INFO L430 AbstractCegarLoop]: === Iteration 138 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:01,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:01,080 INFO L82 PathProgramCache]: Analyzing trace with hash -345174871, now seen corresponding path program 133 times [2021-06-05 03:40:01,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:01,080 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82469671] [2021-06-05 03:40:01,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:01,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:01,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:01,213 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:01,213 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82469671] [2021-06-05 03:40:01,213 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82469671] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:01,213 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:01,213 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:01,213 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164426310] [2021-06-05 03:40:01,213 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:01,213 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:01,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:01,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:01,213 INFO L87 Difference]: Start difference. First operand 5161 states and 24530 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:01,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:01,334 INFO L93 Difference]: Finished difference Result 11637 states and 52111 transitions. [2021-06-05 03:40:01,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:01,334 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:01,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:01,362 INFO L225 Difference]: With dead ends: 11637 [2021-06-05 03:40:01,362 INFO L226 Difference]: Without dead ends: 11222 [2021-06-05 03:40:01,362 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 155.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:01,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11222 states. [2021-06-05 03:40:01,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11222 to 5233. [2021-06-05 03:40:01,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5233 states, 5232 states have (on average 4.745795107033639) internal successors, (24830), 5232 states have internal predecessors, (24830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:01,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5233 states to 5233 states and 24830 transitions. [2021-06-05 03:40:01,590 INFO L78 Accepts]: Start accepts. Automaton has 5233 states and 24830 transitions. Word has length 29 [2021-06-05 03:40:01,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:01,590 INFO L482 AbstractCegarLoop]: Abstraction has 5233 states and 24830 transitions. [2021-06-05 03:40:01,590 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:01,590 INFO L276 IsEmpty]: Start isEmpty. Operand 5233 states and 24830 transitions. [2021-06-05 03:40:01,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:01,598 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:01,599 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:01,599 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2021-06-05 03:40:01,599 INFO L430 AbstractCegarLoop]: === Iteration 139 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:01,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:01,599 INFO L82 PathProgramCache]: Analyzing trace with hash 371488075, now seen corresponding path program 134 times [2021-06-05 03:40:01,599 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:01,599 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114865851] [2021-06-05 03:40:01,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:01,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:01,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:01,732 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:01,732 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114865851] [2021-06-05 03:40:01,732 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114865851] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:01,732 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:01,732 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:01,732 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068687839] [2021-06-05 03:40:01,732 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:01,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:01,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:01,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:01,733 INFO L87 Difference]: Start difference. First operand 5233 states and 24830 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:01,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:01,846 INFO L93 Difference]: Finished difference Result 11699 states and 52332 transitions. [2021-06-05 03:40:01,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:01,847 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:01,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:01,874 INFO L225 Difference]: With dead ends: 11699 [2021-06-05 03:40:01,874 INFO L226 Difference]: Without dead ends: 11174 [2021-06-05 03:40:01,874 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 156.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:01,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11174 states. [2021-06-05 03:40:02,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11174 to 5185. [2021-06-05 03:40:02,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5185 states, 5184 states have (on average 4.751157407407407) internal successors, (24630), 5184 states have internal predecessors, (24630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:02,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5185 states to 5185 states and 24630 transitions. [2021-06-05 03:40:02,103 INFO L78 Accepts]: Start accepts. Automaton has 5185 states and 24630 transitions. Word has length 29 [2021-06-05 03:40:02,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:02,104 INFO L482 AbstractCegarLoop]: Abstraction has 5185 states and 24630 transitions. [2021-06-05 03:40:02,104 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:02,104 INFO L276 IsEmpty]: Start isEmpty. Operand 5185 states and 24630 transitions. [2021-06-05 03:40:02,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:02,112 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:02,112 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:02,113 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2021-06-05 03:40:02,113 INFO L430 AbstractCegarLoop]: === Iteration 140 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:02,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:02,113 INFO L82 PathProgramCache]: Analyzing trace with hash -1519134581, now seen corresponding path program 135 times [2021-06-05 03:40:02,113 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:02,113 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994286445] [2021-06-05 03:40:02,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:02,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:02,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:02,250 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:02,250 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994286445] [2021-06-05 03:40:02,250 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994286445] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:02,250 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:02,250 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:02,250 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345601028] [2021-06-05 03:40:02,250 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:02,250 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:02,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:02,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:02,251 INFO L87 Difference]: Start difference. First operand 5185 states and 24630 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:02,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:02,371 INFO L93 Difference]: Finished difference Result 11635 states and 52082 transitions. [2021-06-05 03:40:02,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:02,371 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:02,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:02,400 INFO L225 Difference]: With dead ends: 11635 [2021-06-05 03:40:02,400 INFO L226 Difference]: Without dead ends: 11220 [2021-06-05 03:40:02,401 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 160.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:02,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11220 states. [2021-06-05 03:40:02,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11220 to 5233. [2021-06-05 03:40:02,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5233 states, 5232 states have (on average 4.741207951070336) internal successors, (24806), 5232 states have internal predecessors, (24806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:02,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5233 states to 5233 states and 24806 transitions. [2021-06-05 03:40:02,634 INFO L78 Accepts]: Start accepts. Automaton has 5233 states and 24806 transitions. Word has length 29 [2021-06-05 03:40:02,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:02,635 INFO L482 AbstractCegarLoop]: Abstraction has 5233 states and 24806 transitions. [2021-06-05 03:40:02,635 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:02,635 INFO L276 IsEmpty]: Start isEmpty. Operand 5233 states and 24806 transitions. [2021-06-05 03:40:02,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:02,643 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:02,643 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:02,644 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2021-06-05 03:40:02,644 INFO L430 AbstractCegarLoop]: === Iteration 141 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:02,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:02,644 INFO L82 PathProgramCache]: Analyzing trace with hash -489569205, now seen corresponding path program 136 times [2021-06-05 03:40:02,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:02,644 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444820953] [2021-06-05 03:40:02,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:02,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:02,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:02,782 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:02,782 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444820953] [2021-06-05 03:40:02,782 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444820953] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:02,782 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:02,782 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:02,782 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112468138] [2021-06-05 03:40:02,782 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:02,782 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:02,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:02,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:02,783 INFO L87 Difference]: Start difference. First operand 5233 states and 24806 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:02,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:02,905 INFO L93 Difference]: Finished difference Result 11695 states and 52298 transitions. [2021-06-05 03:40:02,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:02,906 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:02,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:02,933 INFO L225 Difference]: With dead ends: 11695 [2021-06-05 03:40:02,934 INFO L226 Difference]: Without dead ends: 11172 [2021-06-05 03:40:02,934 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 161.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:03,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11172 states. [2021-06-05 03:40:03,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11172 to 5185. [2021-06-05 03:40:03,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5185 states, 5184 states have (on average 4.746527777777778) internal successors, (24606), 5184 states have internal predecessors, (24606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:03,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5185 states to 5185 states and 24606 transitions. [2021-06-05 03:40:03,163 INFO L78 Accepts]: Start accepts. Automaton has 5185 states and 24606 transitions. Word has length 29 [2021-06-05 03:40:03,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:03,163 INFO L482 AbstractCegarLoop]: Abstraction has 5185 states and 24606 transitions. [2021-06-05 03:40:03,163 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:03,163 INFO L276 IsEmpty]: Start isEmpty. Operand 5185 states and 24606 transitions. [2021-06-05 03:40:03,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:03,172 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:03,172 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:03,172 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2021-06-05 03:40:03,172 INFO L430 AbstractCegarLoop]: === Iteration 142 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:03,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:03,172 INFO L82 PathProgramCache]: Analyzing trace with hash -315642771, now seen corresponding path program 137 times [2021-06-05 03:40:03,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:03,173 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457323791] [2021-06-05 03:40:03,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:03,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:03,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:03,301 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:03,301 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457323791] [2021-06-05 03:40:03,301 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457323791] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:03,301 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:03,301 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:03,301 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459574669] [2021-06-05 03:40:03,301 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:03,301 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:03,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:03,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:03,301 INFO L87 Difference]: Start difference. First operand 5185 states and 24606 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:03,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:03,449 INFO L93 Difference]: Finished difference Result 11789 states and 52743 transitions. [2021-06-05 03:40:03,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:03,449 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:03,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:03,479 INFO L225 Difference]: With dead ends: 11789 [2021-06-05 03:40:03,479 INFO L226 Difference]: Without dead ends: 11312 [2021-06-05 03:40:03,479 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 149.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:03,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11312 states. [2021-06-05 03:40:03,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11312 to 5263. [2021-06-05 03:40:03,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5263 states, 5262 states have (on average 4.7318510072215885) internal successors, (24899), 5262 states have internal predecessors, (24899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:03,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5263 states to 5263 states and 24899 transitions. [2021-06-05 03:40:03,712 INFO L78 Accepts]: Start accepts. Automaton has 5263 states and 24899 transitions. Word has length 29 [2021-06-05 03:40:03,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:03,712 INFO L482 AbstractCegarLoop]: Abstraction has 5263 states and 24899 transitions. [2021-06-05 03:40:03,712 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:03,712 INFO L276 IsEmpty]: Start isEmpty. Operand 5263 states and 24899 transitions. [2021-06-05 03:40:03,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:03,721 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:03,721 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:03,721 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2021-06-05 03:40:03,722 INFO L430 AbstractCegarLoop]: === Iteration 143 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:03,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:03,722 INFO L82 PathProgramCache]: Analyzing trace with hash -1707787317, now seen corresponding path program 138 times [2021-06-05 03:40:03,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:03,722 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729482133] [2021-06-05 03:40:03,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:03,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:03,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:03,848 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:03,848 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729482133] [2021-06-05 03:40:03,848 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729482133] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:03,848 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:03,848 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:03,848 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993579187] [2021-06-05 03:40:03,848 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:03,848 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:03,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:03,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:03,848 INFO L87 Difference]: Start difference. First operand 5263 states and 24899 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:03,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:03,976 INFO L93 Difference]: Finished difference Result 11787 states and 52660 transitions. [2021-06-05 03:40:03,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:03,977 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:03,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:04,005 INFO L225 Difference]: With dead ends: 11787 [2021-06-05 03:40:04,005 INFO L226 Difference]: Without dead ends: 11210 [2021-06-05 03:40:04,005 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 152.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:04,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11210 states. [2021-06-05 03:40:04,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11210 to 5161. [2021-06-05 03:40:04,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.751550387596899) internal successors, (24518), 5160 states have internal predecessors, (24518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:04,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24518 transitions. [2021-06-05 03:40:04,241 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24518 transitions. Word has length 29 [2021-06-05 03:40:04,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:04,241 INFO L482 AbstractCegarLoop]: Abstraction has 5161 states and 24518 transitions. [2021-06-05 03:40:04,241 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:04,241 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24518 transitions. [2021-06-05 03:40:04,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:04,250 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:04,250 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:04,250 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2021-06-05 03:40:04,250 INFO L430 AbstractCegarLoop]: === Iteration 144 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:04,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:04,250 INFO L82 PathProgramCache]: Analyzing trace with hash 356539501, now seen corresponding path program 139 times [2021-06-05 03:40:04,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:04,251 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698462592] [2021-06-05 03:40:04,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:04,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:04,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:04,367 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:04,367 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698462592] [2021-06-05 03:40:04,367 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698462592] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:04,367 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:04,367 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:04,367 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950992752] [2021-06-05 03:40:04,367 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:04,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:04,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:04,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:04,367 INFO L87 Difference]: Start difference. First operand 5161 states and 24518 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:04,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:04,479 INFO L93 Difference]: Finished difference Result 12333 states and 55056 transitions. [2021-06-05 03:40:04,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:04,479 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:04,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:04,512 INFO L225 Difference]: With dead ends: 12333 [2021-06-05 03:40:04,512 INFO L226 Difference]: Without dead ends: 11791 [2021-06-05 03:40:04,512 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 122.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:04,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11791 states. [2021-06-05 03:40:04,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11791 to 5391. [2021-06-05 03:40:04,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5391 states, 5390 states have (on average 4.71873840445269) internal successors, (25434), 5390 states have internal predecessors, (25434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:04,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5391 states to 5391 states and 25434 transitions. [2021-06-05 03:40:04,751 INFO L78 Accepts]: Start accepts. Automaton has 5391 states and 25434 transitions. Word has length 29 [2021-06-05 03:40:04,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:04,752 INFO L482 AbstractCegarLoop]: Abstraction has 5391 states and 25434 transitions. [2021-06-05 03:40:04,752 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:04,752 INFO L276 IsEmpty]: Start isEmpty. Operand 5391 states and 25434 transitions. [2021-06-05 03:40:04,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:04,761 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:04,761 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:04,761 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2021-06-05 03:40:04,761 INFO L430 AbstractCegarLoop]: === Iteration 145 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:04,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:04,761 INFO L82 PathProgramCache]: Analyzing trace with hash -1686797493, now seen corresponding path program 140 times [2021-06-05 03:40:04,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:04,761 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701519145] [2021-06-05 03:40:04,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:04,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:04,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:04,877 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:04,877 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701519145] [2021-06-05 03:40:04,877 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701519145] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:04,878 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:04,878 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:04,878 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983660505] [2021-06-05 03:40:04,878 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:04,878 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:04,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:04,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:04,878 INFO L87 Difference]: Start difference. First operand 5391 states and 25434 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:05,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:05,007 INFO L93 Difference]: Finished difference Result 12268 states and 54687 transitions. [2021-06-05 03:40:05,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:05,008 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:05,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:05,037 INFO L225 Difference]: With dead ends: 12268 [2021-06-05 03:40:05,037 INFO L226 Difference]: Without dead ends: 11648 [2021-06-05 03:40:05,037 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 138.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:05,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11648 states. [2021-06-05 03:40:05,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11648 to 5248. [2021-06-05 03:40:05,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5248 states, 5247 states have (on average 4.734896131122547) internal successors, (24844), 5247 states have internal predecessors, (24844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:05,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5248 states to 5248 states and 24844 transitions. [2021-06-05 03:40:05,272 INFO L78 Accepts]: Start accepts. Automaton has 5248 states and 24844 transitions. Word has length 29 [2021-06-05 03:40:05,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:05,272 INFO L482 AbstractCegarLoop]: Abstraction has 5248 states and 24844 transitions. [2021-06-05 03:40:05,272 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:05,272 INFO L276 IsEmpty]: Start isEmpty. Operand 5248 states and 24844 transitions. [2021-06-05 03:40:05,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:05,281 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:05,281 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:05,281 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2021-06-05 03:40:05,281 INFO L430 AbstractCegarLoop]: === Iteration 146 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:05,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:05,282 INFO L82 PathProgramCache]: Analyzing trace with hash -1759540149, now seen corresponding path program 141 times [2021-06-05 03:40:05,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:05,282 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126232030] [2021-06-05 03:40:05,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:05,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:05,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:05,398 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:05,398 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126232030] [2021-06-05 03:40:05,398 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126232030] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:05,398 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:05,398 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:05,398 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927586916] [2021-06-05 03:40:05,398 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:05,398 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:05,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:05,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:05,399 INFO L87 Difference]: Start difference. First operand 5248 states and 24844 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:05,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:05,503 INFO L93 Difference]: Finished difference Result 12298 states and 54865 transitions. [2021-06-05 03:40:05,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:05,503 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:05,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:05,533 INFO L225 Difference]: With dead ends: 12298 [2021-06-05 03:40:05,533 INFO L226 Difference]: Without dead ends: 11756 [2021-06-05 03:40:05,533 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 123.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:05,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11756 states. [2021-06-05 03:40:05,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11756 to 5358. [2021-06-05 03:40:05,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5358 states, 5357 states have (on average 4.7132723539294386) internal successors, (25249), 5357 states have internal predecessors, (25249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:05,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5358 states to 5358 states and 25249 transitions. [2021-06-05 03:40:05,775 INFO L78 Accepts]: Start accepts. Automaton has 5358 states and 25249 transitions. Word has length 29 [2021-06-05 03:40:05,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:05,775 INFO L482 AbstractCegarLoop]: Abstraction has 5358 states and 25249 transitions. [2021-06-05 03:40:05,775 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:05,775 INFO L276 IsEmpty]: Start isEmpty. Operand 5358 states and 25249 transitions. [2021-06-05 03:40:05,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:05,784 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:05,784 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:05,784 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2021-06-05 03:40:05,784 INFO L430 AbstractCegarLoop]: === Iteration 147 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:05,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:05,785 INFO L82 PathProgramCache]: Analyzing trace with hash -1203751861, now seen corresponding path program 142 times [2021-06-05 03:40:05,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:05,785 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926556382] [2021-06-05 03:40:05,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:05,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:05,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:05,900 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:05,900 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926556382] [2021-06-05 03:40:05,900 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926556382] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:05,900 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:05,900 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:05,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302973343] [2021-06-05 03:40:05,900 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:05,900 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:05,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:05,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:05,901 INFO L87 Difference]: Start difference. First operand 5358 states and 25249 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:06,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:06,021 INFO L93 Difference]: Finished difference Result 12231 states and 54492 transitions. [2021-06-05 03:40:06,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:06,021 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:06,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:06,051 INFO L225 Difference]: With dead ends: 12231 [2021-06-05 03:40:06,052 INFO L226 Difference]: Without dead ends: 11646 [2021-06-05 03:40:06,052 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 139.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:06,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11646 states. [2021-06-05 03:40:06,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11646 to 5248. [2021-06-05 03:40:06,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5248 states, 5247 states have (on average 4.724413950829045) internal successors, (24789), 5247 states have internal predecessors, (24789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:06,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5248 states to 5248 states and 24789 transitions. [2021-06-05 03:40:06,292 INFO L78 Accepts]: Start accepts. Automaton has 5248 states and 24789 transitions. Word has length 29 [2021-06-05 03:40:06,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:06,292 INFO L482 AbstractCegarLoop]: Abstraction has 5248 states and 24789 transitions. [2021-06-05 03:40:06,292 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:06,292 INFO L276 IsEmpty]: Start isEmpty. Operand 5248 states and 24789 transitions. [2021-06-05 03:40:06,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:06,301 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:06,301 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:06,301 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2021-06-05 03:40:06,301 INFO L430 AbstractCegarLoop]: === Iteration 148 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:06,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:06,301 INFO L82 PathProgramCache]: Analyzing trace with hash -777192535, now seen corresponding path program 143 times [2021-06-05 03:40:06,301 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:06,301 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594212558] [2021-06-05 03:40:06,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:06,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:06,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:06,417 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:06,418 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594212558] [2021-06-05 03:40:06,418 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594212558] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:06,418 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:06,418 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:06,418 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953396669] [2021-06-05 03:40:06,418 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:06,418 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:06,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:06,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:06,418 INFO L87 Difference]: Start difference. First operand 5248 states and 24789 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:06,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:06,537 INFO L93 Difference]: Finished difference Result 12136 states and 54150 transitions. [2021-06-05 03:40:06,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:06,538 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:06,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:06,567 INFO L225 Difference]: With dead ends: 12136 [2021-06-05 03:40:06,567 INFO L226 Difference]: Without dead ends: 11659 [2021-06-05 03:40:06,567 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 140.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:06,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11659 states. [2021-06-05 03:40:06,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11659 to 5326. [2021-06-05 03:40:06,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5326 states, 5325 states have (on average 4.710234741784038) internal successors, (25082), 5325 states have internal predecessors, (25082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:06,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5326 states to 5326 states and 25082 transitions. [2021-06-05 03:40:06,805 INFO L78 Accepts]: Start accepts. Automaton has 5326 states and 25082 transitions. Word has length 29 [2021-06-05 03:40:06,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:06,805 INFO L482 AbstractCegarLoop]: Abstraction has 5326 states and 25082 transitions. [2021-06-05 03:40:06,805 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:06,805 INFO L276 IsEmpty]: Start isEmpty. Operand 5326 states and 25082 transitions. [2021-06-05 03:40:06,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:06,814 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:06,814 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:06,814 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2021-06-05 03:40:06,814 INFO L430 AbstractCegarLoop]: === Iteration 149 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:06,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:06,815 INFO L82 PathProgramCache]: Analyzing trace with hash -984000501, now seen corresponding path program 144 times [2021-06-05 03:40:06,815 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:06,815 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109064591] [2021-06-05 03:40:06,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:06,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:06,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:06,934 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:06,934 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109064591] [2021-06-05 03:40:06,934 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109064591] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:06,934 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:06,934 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:06,934 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8988058] [2021-06-05 03:40:06,934 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:06,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:06,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:06,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:06,935 INFO L87 Difference]: Start difference. First operand 5326 states and 25082 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:07,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:07,065 INFO L93 Difference]: Finished difference Result 12134 states and 54067 transitions. [2021-06-05 03:40:07,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:07,065 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:07,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:07,094 INFO L225 Difference]: With dead ends: 12134 [2021-06-05 03:40:07,094 INFO L226 Difference]: Without dead ends: 11458 [2021-06-05 03:40:07,094 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 140.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:07,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11458 states. [2021-06-05 03:40:07,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11458 to 5125. [2021-06-05 03:40:07,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5125 states, 5124 states have (on average 4.758782201405152) internal successors, (24384), 5124 states have internal predecessors, (24384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:07,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5125 states to 5125 states and 24384 transitions. [2021-06-05 03:40:07,331 INFO L78 Accepts]: Start accepts. Automaton has 5125 states and 24384 transitions. Word has length 29 [2021-06-05 03:40:07,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:07,331 INFO L482 AbstractCegarLoop]: Abstraction has 5125 states and 24384 transitions. [2021-06-05 03:40:07,331 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:07,331 INFO L276 IsEmpty]: Start isEmpty. Operand 5125 states and 24384 transitions. [2021-06-05 03:40:07,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:07,340 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:07,340 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:07,340 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2021-06-05 03:40:07,340 INFO L430 AbstractCegarLoop]: === Iteration 150 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:07,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:07,341 INFO L82 PathProgramCache]: Analyzing trace with hash 1593216681, now seen corresponding path program 145 times [2021-06-05 03:40:07,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:07,341 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691329638] [2021-06-05 03:40:07,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:07,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:07,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:07,472 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:07,472 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691329638] [2021-06-05 03:40:07,473 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691329638] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:07,473 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:07,473 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:07,473 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414927775] [2021-06-05 03:40:07,473 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:07,473 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:07,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:07,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:07,473 INFO L87 Difference]: Start difference. First operand 5125 states and 24384 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:07,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:07,605 INFO L93 Difference]: Finished difference Result 11897 states and 53247 transitions. [2021-06-05 03:40:07,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:07,606 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:07,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:07,635 INFO L225 Difference]: With dead ends: 11897 [2021-06-05 03:40:07,635 INFO L226 Difference]: Without dead ends: 11482 [2021-06-05 03:40:07,635 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 155.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:07,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11482 states. [2021-06-05 03:40:07,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11482 to 5289. [2021-06-05 03:40:07,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5289 states, 5288 states have (on average 4.750378214826021) internal successors, (25120), 5288 states have internal predecessors, (25120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:07,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5289 states to 5289 states and 25120 transitions. [2021-06-05 03:40:07,866 INFO L78 Accepts]: Start accepts. Automaton has 5289 states and 25120 transitions. Word has length 29 [2021-06-05 03:40:07,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:07,866 INFO L482 AbstractCegarLoop]: Abstraction has 5289 states and 25120 transitions. [2021-06-05 03:40:07,866 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:07,867 INFO L276 IsEmpty]: Start isEmpty. Operand 5289 states and 25120 transitions. [2021-06-05 03:40:07,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:07,875 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:07,875 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:07,875 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2021-06-05 03:40:07,875 INFO L430 AbstractCegarLoop]: === Iteration 151 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:07,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:07,876 INFO L82 PathProgramCache]: Analyzing trace with hash -946930007, now seen corresponding path program 146 times [2021-06-05 03:40:07,876 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:07,876 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718173628] [2021-06-05 03:40:07,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:07,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:08,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:08,016 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:08,016 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718173628] [2021-06-05 03:40:08,016 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718173628] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:08,016 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:08,016 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:08,016 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427492175] [2021-06-05 03:40:08,016 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:08,016 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:08,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:08,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:08,017 INFO L87 Difference]: Start difference. First operand 5289 states and 25120 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:08,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:08,123 INFO L93 Difference]: Finished difference Result 12024 states and 53726 transitions. [2021-06-05 03:40:08,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:08,124 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:08,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:08,151 INFO L225 Difference]: With dead ends: 12024 [2021-06-05 03:40:08,152 INFO L226 Difference]: Without dead ends: 11402 [2021-06-05 03:40:08,152 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 139.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:08,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11402 states. [2021-06-05 03:40:08,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11402 to 5209. [2021-06-05 03:40:08,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5209 states, 5208 states have (on average 4.754224270353302) internal successors, (24760), 5208 states have internal predecessors, (24760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:08,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5209 states to 5209 states and 24760 transitions. [2021-06-05 03:40:08,391 INFO L78 Accepts]: Start accepts. Automaton has 5209 states and 24760 transitions. Word has length 29 [2021-06-05 03:40:08,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:08,391 INFO L482 AbstractCegarLoop]: Abstraction has 5209 states and 24760 transitions. [2021-06-05 03:40:08,391 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:08,391 INFO L276 IsEmpty]: Start isEmpty. Operand 5209 states and 24760 transitions. [2021-06-05 03:40:08,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:08,401 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:08,401 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:08,401 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2021-06-05 03:40:08,401 INFO L430 AbstractCegarLoop]: === Iteration 152 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:08,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:08,401 INFO L82 PathProgramCache]: Analyzing trace with hash 1373414825, now seen corresponding path program 147 times [2021-06-05 03:40:08,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:08,401 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2860421] [2021-06-05 03:40:08,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:08,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:08,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:08,534 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:08,534 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2860421] [2021-06-05 03:40:08,534 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2860421] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:08,534 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:08,534 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:08,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940604299] [2021-06-05 03:40:08,534 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:08,534 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:08,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:08,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:08,534 INFO L87 Difference]: Start difference. First operand 5209 states and 24760 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:08,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:08,668 INFO L93 Difference]: Finished difference Result 11800 states and 52805 transitions. [2021-06-05 03:40:08,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:08,668 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:08,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:08,697 INFO L225 Difference]: With dead ends: 11800 [2021-06-05 03:40:08,697 INFO L226 Difference]: Without dead ends: 11385 [2021-06-05 03:40:08,697 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 156.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:08,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11385 states. [2021-06-05 03:40:08,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11385 to 5257. [2021-06-05 03:40:08,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5257 states, 5256 states have (on average 4.744292237442922) internal successors, (24936), 5256 states have internal predecessors, (24936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:08,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5257 states to 5257 states and 24936 transitions. [2021-06-05 03:40:08,932 INFO L78 Accepts]: Start accepts. Automaton has 5257 states and 24936 transitions. Word has length 29 [2021-06-05 03:40:08,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:08,932 INFO L482 AbstractCegarLoop]: Abstraction has 5257 states and 24936 transitions. [2021-06-05 03:40:08,932 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:08,933 INFO L276 IsEmpty]: Start isEmpty. Operand 5257 states and 24936 transitions. [2021-06-05 03:40:08,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:08,941 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:08,942 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:08,942 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2021-06-05 03:40:08,942 INFO L430 AbstractCegarLoop]: === Iteration 153 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:08,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:08,942 INFO L82 PathProgramCache]: Analyzing trace with hash 2090077771, now seen corresponding path program 148 times [2021-06-05 03:40:08,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:08,942 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836880949] [2021-06-05 03:40:08,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:08,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:09,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:09,076 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:09,076 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836880949] [2021-06-05 03:40:09,076 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836880949] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:09,076 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:09,076 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:09,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137869488] [2021-06-05 03:40:09,076 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:09,076 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:09,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:09,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:09,076 INFO L87 Difference]: Start difference. First operand 5257 states and 24936 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:09,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:09,200 INFO L93 Difference]: Finished difference Result 11862 states and 53026 transitions. [2021-06-05 03:40:09,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:09,201 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:09,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:09,230 INFO L225 Difference]: With dead ends: 11862 [2021-06-05 03:40:09,230 INFO L226 Difference]: Without dead ends: 11337 [2021-06-05 03:40:09,230 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 155.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:09,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11337 states. [2021-06-05 03:40:09,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11337 to 5209. [2021-06-05 03:40:09,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5209 states, 5208 states have (on average 4.749615975422427) internal successors, (24736), 5208 states have internal predecessors, (24736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:09,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5209 states to 5209 states and 24736 transitions. [2021-06-05 03:40:09,470 INFO L78 Accepts]: Start accepts. Automaton has 5209 states and 24736 transitions. Word has length 29 [2021-06-05 03:40:09,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:09,470 INFO L482 AbstractCegarLoop]: Abstraction has 5209 states and 24736 transitions. [2021-06-05 03:40:09,470 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:09,470 INFO L276 IsEmpty]: Start isEmpty. Operand 5209 states and 24736 transitions. [2021-06-05 03:40:09,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:09,479 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:09,479 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:09,479 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2021-06-05 03:40:09,479 INFO L430 AbstractCegarLoop]: === Iteration 154 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:09,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:09,479 INFO L82 PathProgramCache]: Analyzing trace with hash -121663925, now seen corresponding path program 149 times [2021-06-05 03:40:09,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:09,479 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874785470] [2021-06-05 03:40:09,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:09,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:09,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:09,604 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:09,604 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874785470] [2021-06-05 03:40:09,604 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874785470] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:09,604 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:09,604 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:09,604 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042508534] [2021-06-05 03:40:09,604 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:09,604 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:09,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:09,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:09,605 INFO L87 Difference]: Start difference. First operand 5209 states and 24736 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:09,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:09,729 INFO L93 Difference]: Finished difference Result 12149 states and 54241 transitions. [2021-06-05 03:40:09,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:09,729 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:09,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:09,765 INFO L225 Difference]: With dead ends: 12149 [2021-06-05 03:40:09,766 INFO L226 Difference]: Without dead ends: 11607 [2021-06-05 03:40:09,766 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 140.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:09,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11607 states. [2021-06-05 03:40:10,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11607 to 5352. [2021-06-05 03:40:10,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5352 states, 5351 states have (on average 4.719678564754251) internal successors, (25255), 5351 states have internal predecessors, (25255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:10,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5352 states to 5352 states and 25255 transitions. [2021-06-05 03:40:10,028 INFO L78 Accepts]: Start accepts. Automaton has 5352 states and 25255 transitions. Word has length 29 [2021-06-05 03:40:10,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:10,028 INFO L482 AbstractCegarLoop]: Abstraction has 5352 states and 25255 transitions. [2021-06-05 03:40:10,028 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:10,028 INFO L276 IsEmpty]: Start isEmpty. Operand 5352 states and 25255 transitions. [2021-06-05 03:40:10,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:10,037 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:10,037 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:10,037 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2021-06-05 03:40:10,037 INFO L430 AbstractCegarLoop]: === Iteration 155 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:10,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:10,037 INFO L82 PathProgramCache]: Analyzing trace with hash 2129966377, now seen corresponding path program 150 times [2021-06-05 03:40:10,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:10,037 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99495108] [2021-06-05 03:40:10,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:10,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:10,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:10,214 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:10,214 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99495108] [2021-06-05 03:40:10,214 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99495108] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:10,214 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:10,214 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:10,214 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329821410] [2021-06-05 03:40:10,214 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:10,214 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:10,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:10,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:10,214 INFO L87 Difference]: Start difference. First operand 5352 states and 25255 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:10,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:10,342 INFO L93 Difference]: Finished difference Result 12084 states and 53872 transitions. [2021-06-05 03:40:10,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:10,342 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:10,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:10,370 INFO L225 Difference]: With dead ends: 12084 [2021-06-05 03:40:10,370 INFO L226 Difference]: Without dead ends: 11408 [2021-06-05 03:40:10,370 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 198.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:10,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11408 states. [2021-06-05 03:40:10,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11408 to 5153. [2021-06-05 03:40:10,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 5152 states have (on average 4.7562111801242235) internal successors, (24504), 5152 states have internal predecessors, (24504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:10,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 24504 transitions. [2021-06-05 03:40:10,598 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 24504 transitions. Word has length 29 [2021-06-05 03:40:10,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:10,598 INFO L482 AbstractCegarLoop]: Abstraction has 5153 states and 24504 transitions. [2021-06-05 03:40:10,599 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:10,599 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 24504 transitions. [2021-06-05 03:40:10,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:10,607 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:10,607 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:10,607 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2021-06-05 03:40:10,607 INFO L430 AbstractCegarLoop]: === Iteration 156 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:10,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:10,608 INFO L82 PathProgramCache]: Analyzing trace with hash -1726432693, now seen corresponding path program 151 times [2021-06-05 03:40:10,608 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:10,608 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497290357] [2021-06-05 03:40:10,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:10,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:10,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:10,743 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:10,743 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497290357] [2021-06-05 03:40:10,743 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497290357] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:10,743 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:10,743 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:10,743 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683766976] [2021-06-05 03:40:10,743 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:10,743 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:10,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:10,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:10,743 INFO L87 Difference]: Start difference. First operand 5153 states and 24504 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:10,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:10,859 INFO L93 Difference]: Finished difference Result 11840 states and 53016 transitions. [2021-06-05 03:40:10,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:10,859 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:10,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:10,887 INFO L225 Difference]: With dead ends: 11840 [2021-06-05 03:40:10,888 INFO L226 Difference]: Without dead ends: 11425 [2021-06-05 03:40:10,888 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 150.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:11,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11425 states. [2021-06-05 03:40:11,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11425 to 5273. [2021-06-05 03:40:11,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5273 states, 5272 states have (on average 4.7473444613050075) internal successors, (25028), 5272 states have internal predecessors, (25028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:11,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5273 states to 5273 states and 25028 transitions. [2021-06-05 03:40:11,117 INFO L78 Accepts]: Start accepts. Automaton has 5273 states and 25028 transitions. Word has length 29 [2021-06-05 03:40:11,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:11,117 INFO L482 AbstractCegarLoop]: Abstraction has 5273 states and 25028 transitions. [2021-06-05 03:40:11,117 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:11,117 INFO L276 IsEmpty]: Start isEmpty. Operand 5273 states and 25028 transitions. [2021-06-05 03:40:11,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:11,126 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:11,126 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:11,126 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2021-06-05 03:40:11,126 INFO L430 AbstractCegarLoop]: === Iteration 157 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:11,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:11,126 INFO L82 PathProgramCache]: Analyzing trace with hash 28387915, now seen corresponding path program 152 times [2021-06-05 03:40:11,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:11,126 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238962923] [2021-06-05 03:40:11,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:11,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:11,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:11,258 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:11,258 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238962923] [2021-06-05 03:40:11,258 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238962923] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:11,258 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:11,258 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:11,258 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904188505] [2021-06-05 03:40:11,259 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:11,259 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:11,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:11,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:11,259 INFO L87 Difference]: Start difference. First operand 5273 states and 25028 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:11,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:11,367 INFO L93 Difference]: Finished difference Result 11967 states and 53495 transitions. [2021-06-05 03:40:11,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:11,367 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:11,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:11,395 INFO L225 Difference]: With dead ends: 11967 [2021-06-05 03:40:11,396 INFO L226 Difference]: Without dead ends: 11345 [2021-06-05 03:40:11,396 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 135.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:11,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11345 states. [2021-06-05 03:40:11,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11345 to 5193. [2021-06-05 03:40:11,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5193 states, 5192 states have (on average 4.75115562403698) internal successors, (24668), 5192 states have internal predecessors, (24668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:11,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5193 states to 5193 states and 24668 transitions. [2021-06-05 03:40:11,624 INFO L78 Accepts]: Start accepts. Automaton has 5193 states and 24668 transitions. Word has length 29 [2021-06-05 03:40:11,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:11,624 INFO L482 AbstractCegarLoop]: Abstraction has 5193 states and 24668 transitions. [2021-06-05 03:40:11,624 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:11,624 INFO L276 IsEmpty]: Start isEmpty. Operand 5193 states and 24668 transitions. [2021-06-05 03:40:11,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:11,633 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:11,633 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:11,633 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2021-06-05 03:40:11,633 INFO L430 AbstractCegarLoop]: === Iteration 158 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:11,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:11,633 INFO L82 PathProgramCache]: Analyzing trace with hash -1291260311, now seen corresponding path program 153 times [2021-06-05 03:40:11,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:11,634 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723424017] [2021-06-05 03:40:11,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:11,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:11,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:11,776 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:11,776 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723424017] [2021-06-05 03:40:11,776 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723424017] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:11,776 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:11,776 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:11,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123505591] [2021-06-05 03:40:11,777 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:11,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:11,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:11,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:11,777 INFO L87 Difference]: Start difference. First operand 5193 states and 24668 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:11,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:11,902 INFO L93 Difference]: Finished difference Result 11737 states and 52557 transitions. [2021-06-05 03:40:11,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:11,903 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:11,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:11,931 INFO L225 Difference]: With dead ends: 11737 [2021-06-05 03:40:11,931 INFO L226 Difference]: Without dead ends: 11322 [2021-06-05 03:40:11,932 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 146.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:12,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11322 states. [2021-06-05 03:40:12,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11322 to 5241. [2021-06-05 03:40:12,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5241 states, 5240 states have (on average 4.741221374045802) internal successors, (24844), 5240 states have internal predecessors, (24844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:12,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5241 states to 5241 states and 24844 transitions. [2021-06-05 03:40:12,165 INFO L78 Accepts]: Start accepts. Automaton has 5241 states and 24844 transitions. Word has length 29 [2021-06-05 03:40:12,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:12,165 INFO L482 AbstractCegarLoop]: Abstraction has 5241 states and 24844 transitions. [2021-06-05 03:40:12,165 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:12,165 INFO L276 IsEmpty]: Start isEmpty. Operand 5241 states and 24844 transitions. [2021-06-05 03:40:12,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:12,174 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:12,174 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:12,174 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2021-06-05 03:40:12,174 INFO L430 AbstractCegarLoop]: === Iteration 159 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:12,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:12,174 INFO L82 PathProgramCache]: Analyzing trace with hash 1873354123, now seen corresponding path program 154 times [2021-06-05 03:40:12,174 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:12,174 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287315094] [2021-06-05 03:40:12,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:12,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:12,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:12,286 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:12,286 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287315094] [2021-06-05 03:40:12,286 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287315094] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:12,286 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:12,286 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:12,286 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130633249] [2021-06-05 03:40:12,286 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:12,286 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:12,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:12,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:12,287 INFO L87 Difference]: Start difference. First operand 5241 states and 24844 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:12,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:12,411 INFO L93 Difference]: Finished difference Result 11793 states and 52761 transitions. [2021-06-05 03:40:12,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:12,411 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:12,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:12,440 INFO L225 Difference]: With dead ends: 11793 [2021-06-05 03:40:12,440 INFO L226 Difference]: Without dead ends: 11274 [2021-06-05 03:40:12,440 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 142.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:12,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11274 states. [2021-06-05 03:40:12,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11274 to 5193. [2021-06-05 03:40:12,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5193 states, 5192 states have (on average 4.74653312788906) internal successors, (24644), 5192 states have internal predecessors, (24644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:12,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5193 states to 5193 states and 24644 transitions. [2021-06-05 03:40:12,672 INFO L78 Accepts]: Start accepts. Automaton has 5193 states and 24644 transitions. Word has length 29 [2021-06-05 03:40:12,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:12,672 INFO L482 AbstractCegarLoop]: Abstraction has 5193 states and 24644 transitions. [2021-06-05 03:40:12,672 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:12,672 INFO L276 IsEmpty]: Start isEmpty. Operand 5193 states and 24644 transitions. [2021-06-05 03:40:12,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:12,681 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:12,681 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:12,681 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2021-06-05 03:40:12,681 INFO L430 AbstractCegarLoop]: === Iteration 160 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:12,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:12,681 INFO L82 PathProgramCache]: Analyzing trace with hash 1939983755, now seen corresponding path program 155 times [2021-06-05 03:40:12,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:12,681 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033396824] [2021-06-05 03:40:12,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:12,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:12,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:12,823 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:12,823 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033396824] [2021-06-05 03:40:12,823 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033396824] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:12,823 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:12,823 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:12,823 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583782078] [2021-06-05 03:40:12,823 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:12,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:12,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:12,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:12,824 INFO L87 Difference]: Start difference. First operand 5193 states and 24644 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:12,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:12,932 INFO L93 Difference]: Finished difference Result 12051 states and 53871 transitions. [2021-06-05 03:40:12,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:12,933 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:12,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:12,961 INFO L225 Difference]: With dead ends: 12051 [2021-06-05 03:40:12,962 INFO L226 Difference]: Without dead ends: 11509 [2021-06-05 03:40:12,962 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 147.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:13,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11509 states. [2021-06-05 03:40:13,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11509 to 5301. [2021-06-05 03:40:13,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5301 states, 5300 states have (on average 4.725283018867924) internal successors, (25044), 5300 states have internal predecessors, (25044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:13,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5301 states to 5301 states and 25044 transitions. [2021-06-05 03:40:13,197 INFO L78 Accepts]: Start accepts. Automaton has 5301 states and 25044 transitions. Word has length 29 [2021-06-05 03:40:13,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:13,197 INFO L482 AbstractCegarLoop]: Abstraction has 5301 states and 25044 transitions. [2021-06-05 03:40:13,197 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:13,197 INFO L276 IsEmpty]: Start isEmpty. Operand 5301 states and 25044 transitions. [2021-06-05 03:40:13,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:13,206 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:13,206 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:13,206 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2021-06-05 03:40:13,206 INFO L430 AbstractCegarLoop]: === Iteration 161 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:13,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:13,207 INFO L82 PathProgramCache]: Analyzing trace with hash 1850224105, now seen corresponding path program 156 times [2021-06-05 03:40:13,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:13,207 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230214293] [2021-06-05 03:40:13,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:13,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:13,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:13,334 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:13,334 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230214293] [2021-06-05 03:40:13,334 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230214293] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:13,334 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:13,334 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:13,334 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116006507] [2021-06-05 03:40:13,334 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:13,334 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:13,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:13,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:13,334 INFO L87 Difference]: Start difference. First operand 5301 states and 25044 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:13,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:13,465 INFO L93 Difference]: Finished difference Result 11980 states and 53488 transitions. [2021-06-05 03:40:13,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:13,465 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:13,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:13,494 INFO L225 Difference]: With dead ends: 11980 [2021-06-05 03:40:13,494 INFO L226 Difference]: Without dead ends: 11361 [2021-06-05 03:40:13,495 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 150.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:13,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11361 states. [2021-06-05 03:40:13,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11361 to 5153. [2021-06-05 03:40:13,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 5152 states have (on average 4.752329192546584) internal successors, (24484), 5152 states have internal predecessors, (24484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:13,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 24484 transitions. [2021-06-05 03:40:13,727 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 24484 transitions. Word has length 29 [2021-06-05 03:40:13,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:13,727 INFO L482 AbstractCegarLoop]: Abstraction has 5153 states and 24484 transitions. [2021-06-05 03:40:13,727 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:13,727 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 24484 transitions. [2021-06-05 03:40:13,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:13,736 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:13,736 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:13,736 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2021-06-05 03:40:13,736 INFO L430 AbstractCegarLoop]: === Iteration 162 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:13,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:13,736 INFO L82 PathProgramCache]: Analyzing trace with hash -475392663, now seen corresponding path program 157 times [2021-06-05 03:40:13,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:13,736 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709134022] [2021-06-05 03:40:13,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:13,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:13,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:13,852 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:13,852 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709134022] [2021-06-05 03:40:13,852 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709134022] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:13,852 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:13,852 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:13,852 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906826429] [2021-06-05 03:40:13,852 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:13,852 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:13,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:13,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:13,852 INFO L87 Difference]: Start difference. First operand 5153 states and 24484 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:13,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:13,974 INFO L93 Difference]: Finished difference Result 11598 states and 51968 transitions. [2021-06-05 03:40:13,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:13,975 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:13,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:14,002 INFO L225 Difference]: With dead ends: 11598 [2021-06-05 03:40:14,003 INFO L226 Difference]: Without dead ends: 11183 [2021-06-05 03:40:14,003 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 141.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:14,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11183 states. [2021-06-05 03:40:14,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11183 to 5225. [2021-06-05 03:40:14,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5225 states, 5224 states have (on average 4.744257274119449) internal successors, (24784), 5224 states have internal predecessors, (24784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:14,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5225 states to 5225 states and 24784 transitions. [2021-06-05 03:40:14,236 INFO L78 Accepts]: Start accepts. Automaton has 5225 states and 24784 transitions. Word has length 29 [2021-06-05 03:40:14,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:14,236 INFO L482 AbstractCegarLoop]: Abstraction has 5225 states and 24784 transitions. [2021-06-05 03:40:14,236 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:14,236 INFO L276 IsEmpty]: Start isEmpty. Operand 5225 states and 24784 transitions. [2021-06-05 03:40:14,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:14,245 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:14,245 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:14,245 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2021-06-05 03:40:14,245 INFO L430 AbstractCegarLoop]: === Iteration 163 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:14,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:14,245 INFO L82 PathProgramCache]: Analyzing trace with hash 241270283, now seen corresponding path program 158 times [2021-06-05 03:40:14,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:14,245 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157959386] [2021-06-05 03:40:14,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:14,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:14,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:14,363 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:14,363 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157959386] [2021-06-05 03:40:14,363 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157959386] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:14,363 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:14,363 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:14,363 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522919494] [2021-06-05 03:40:14,363 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:14,363 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:14,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:14,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:14,364 INFO L87 Difference]: Start difference. First operand 5225 states and 24784 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:14,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:14,499 INFO L93 Difference]: Finished difference Result 11660 states and 52189 transitions. [2021-06-05 03:40:14,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:14,499 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:14,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:14,527 INFO L225 Difference]: With dead ends: 11660 [2021-06-05 03:40:14,528 INFO L226 Difference]: Without dead ends: 11135 [2021-06-05 03:40:14,528 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 142.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:14,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11135 states. [2021-06-05 03:40:14,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11135 to 5177. [2021-06-05 03:40:14,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5177 states, 5176 states have (on average 4.749613601236476) internal successors, (24584), 5176 states have internal predecessors, (24584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:14,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5177 states to 5177 states and 24584 transitions. [2021-06-05 03:40:14,759 INFO L78 Accepts]: Start accepts. Automaton has 5177 states and 24584 transitions. Word has length 29 [2021-06-05 03:40:14,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:14,759 INFO L482 AbstractCegarLoop]: Abstraction has 5177 states and 24584 transitions. [2021-06-05 03:40:14,759 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:14,759 INFO L276 IsEmpty]: Start isEmpty. Operand 5177 states and 24584 transitions. [2021-06-05 03:40:14,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:14,768 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:14,768 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:14,768 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2021-06-05 03:40:14,768 INFO L430 AbstractCegarLoop]: === Iteration 164 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:14,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:14,768 INFO L82 PathProgramCache]: Analyzing trace with hash 1952557259, now seen corresponding path program 159 times [2021-06-05 03:40:14,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:14,769 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770096734] [2021-06-05 03:40:14,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:14,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:14,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:14,887 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:14,887 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770096734] [2021-06-05 03:40:14,887 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770096734] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:14,887 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:14,887 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:14,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538341765] [2021-06-05 03:40:14,887 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:14,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:14,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:14,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:14,888 INFO L87 Difference]: Start difference. First operand 5177 states and 24584 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:15,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:15,011 INFO L93 Difference]: Finished difference Result 11592 states and 51927 transitions. [2021-06-05 03:40:15,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:15,011 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:15,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:15,039 INFO L225 Difference]: With dead ends: 11592 [2021-06-05 03:40:15,039 INFO L226 Difference]: Without dead ends: 11177 [2021-06-05 03:40:15,040 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 139.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:15,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11177 states. [2021-06-05 03:40:15,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11177 to 5225. [2021-06-05 03:40:15,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5225 states, 5224 states have (on average 4.7396630934150075) internal successors, (24760), 5224 states have internal predecessors, (24760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:15,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5225 states to 5225 states and 24760 transitions. [2021-06-05 03:40:15,272 INFO L78 Accepts]: Start accepts. Automaton has 5225 states and 24760 transitions. Word has length 29 [2021-06-05 03:40:15,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:15,272 INFO L482 AbstractCegarLoop]: Abstraction has 5225 states and 24760 transitions. [2021-06-05 03:40:15,272 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:15,272 INFO L276 IsEmpty]: Start isEmpty. Operand 5225 states and 24760 transitions. [2021-06-05 03:40:15,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:15,281 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:15,281 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:15,281 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2021-06-05 03:40:15,281 INFO L430 AbstractCegarLoop]: === Iteration 165 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:15,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:15,281 INFO L82 PathProgramCache]: Analyzing trace with hash 1097168011, now seen corresponding path program 160 times [2021-06-05 03:40:15,281 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:15,281 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574964465] [2021-06-05 03:40:15,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:15,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:15,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:15,389 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:15,389 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574964465] [2021-06-05 03:40:15,389 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574964465] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:15,389 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:15,389 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:15,389 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903950366] [2021-06-05 03:40:15,389 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:15,389 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:15,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:15,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:15,390 INFO L87 Difference]: Start difference. First operand 5225 states and 24760 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:15,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:15,528 INFO L93 Difference]: Finished difference Result 11648 states and 52131 transitions. [2021-06-05 03:40:15,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:15,528 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:15,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:15,555 INFO L225 Difference]: With dead ends: 11648 [2021-06-05 03:40:15,555 INFO L226 Difference]: Without dead ends: 11129 [2021-06-05 03:40:15,555 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 129.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:15,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11129 states. [2021-06-05 03:40:15,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11129 to 5177. [2021-06-05 03:40:15,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5177 states, 5176 states have (on average 4.744976816074189) internal successors, (24560), 5176 states have internal predecessors, (24560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:15,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5177 states to 5177 states and 24560 transitions. [2021-06-05 03:40:15,784 INFO L78 Accepts]: Start accepts. Automaton has 5177 states and 24560 transitions. Word has length 29 [2021-06-05 03:40:15,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:15,785 INFO L482 AbstractCegarLoop]: Abstraction has 5177 states and 24560 transitions. [2021-06-05 03:40:15,785 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:15,785 INFO L276 IsEmpty]: Start isEmpty. Operand 5177 states and 24560 transitions. [2021-06-05 03:40:15,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:15,794 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:15,794 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:15,794 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2021-06-05 03:40:15,794 INFO L430 AbstractCegarLoop]: === Iteration 166 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:15,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:15,794 INFO L82 PathProgramCache]: Analyzing trace with hash 598895789, now seen corresponding path program 161 times [2021-06-05 03:40:15,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:15,794 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892701347] [2021-06-05 03:40:15,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:15,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:15,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:15,899 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:15,899 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892701347] [2021-06-05 03:40:15,899 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892701347] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:15,899 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:15,899 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:15,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915772754] [2021-06-05 03:40:15,899 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:15,899 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:15,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:15,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:15,899 INFO L87 Difference]: Start difference. First operand 5177 states and 24560 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:16,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:16,013 INFO L93 Difference]: Finished difference Result 11744 states and 52581 transitions. [2021-06-05 03:40:16,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:16,014 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:16,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:16,042 INFO L225 Difference]: With dead ends: 11744 [2021-06-05 03:40:16,042 INFO L226 Difference]: Without dead ends: 11267 [2021-06-05 03:40:16,043 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 129.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:16,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11267 states. [2021-06-05 03:40:16,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11267 to 5253. [2021-06-05 03:40:16,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5253 states, 5252 states have (on average 4.731150038080731) internal successors, (24848), 5252 states have internal predecessors, (24848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:16,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5253 states to 5253 states and 24848 transitions. [2021-06-05 03:40:16,276 INFO L78 Accepts]: Start accepts. Automaton has 5253 states and 24848 transitions. Word has length 29 [2021-06-05 03:40:16,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:16,276 INFO L482 AbstractCegarLoop]: Abstraction has 5253 states and 24848 transitions. [2021-06-05 03:40:16,276 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:16,276 INFO L276 IsEmpty]: Start isEmpty. Operand 5253 states and 24848 transitions. [2021-06-05 03:40:16,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:16,285 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:16,285 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:16,285 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2021-06-05 03:40:16,285 INFO L430 AbstractCegarLoop]: === Iteration 167 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:16,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:16,285 INFO L82 PathProgramCache]: Analyzing trace with hash -142056309, now seen corresponding path program 162 times [2021-06-05 03:40:16,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:16,286 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773850634] [2021-06-05 03:40:16,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:16,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:16,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:16,389 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:16,389 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773850634] [2021-06-05 03:40:16,389 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773850634] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:16,389 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:16,389 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:16,389 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479095105] [2021-06-05 03:40:16,390 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:16,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:16,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:16,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:16,390 INFO L87 Difference]: Start difference. First operand 5253 states and 24848 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:16,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:16,509 INFO L93 Difference]: Finished difference Result 11738 states and 52488 transitions. [2021-06-05 03:40:16,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:16,509 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:16,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:16,538 INFO L225 Difference]: With dead ends: 11738 [2021-06-05 03:40:16,539 INFO L226 Difference]: Without dead ends: 11167 [2021-06-05 03:40:16,539 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 129.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:16,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11167 states. [2021-06-05 03:40:16,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11167 to 5153. [2021-06-05 03:40:16,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 5152 states have (on average 4.75) internal successors, (24472), 5152 states have internal predecessors, (24472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:16,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 24472 transitions. [2021-06-05 03:40:16,768 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 24472 transitions. Word has length 29 [2021-06-05 03:40:16,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:16,769 INFO L482 AbstractCegarLoop]: Abstraction has 5153 states and 24472 transitions. [2021-06-05 03:40:16,769 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:16,769 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 24472 transitions. [2021-06-05 03:40:16,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:16,777 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:16,777 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:16,778 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2021-06-05 03:40:16,778 INFO L430 AbstractCegarLoop]: === Iteration 168 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:16,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:16,778 INFO L82 PathProgramCache]: Analyzing trace with hash -466735955, now seen corresponding path program 163 times [2021-06-05 03:40:16,778 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:16,778 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44064098] [2021-06-05 03:40:16,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:16,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:16,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:16,894 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:16,895 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44064098] [2021-06-05 03:40:16,895 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44064098] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:16,895 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:16,895 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:16,895 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001662522] [2021-06-05 03:40:16,895 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:16,895 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:16,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:16,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:16,895 INFO L87 Difference]: Start difference. First operand 5153 states and 24472 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:16,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:17,000 INFO L93 Difference]: Finished difference Result 12275 states and 54854 transitions. [2021-06-05 03:40:17,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:17,000 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:17,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:17,029 INFO L225 Difference]: With dead ends: 12275 [2021-06-05 03:40:17,029 INFO L226 Difference]: Without dead ends: 11733 [2021-06-05 03:40:17,029 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 120.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:17,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11733 states. [2021-06-05 03:40:17,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11733 to 5366. [2021-06-05 03:40:17,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5366 states, 5365 states have (on average 4.7224603914259085) internal successors, (25336), 5365 states have internal predecessors, (25336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:17,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5366 states to 5366 states and 25336 transitions. [2021-06-05 03:40:17,264 INFO L78 Accepts]: Start accepts. Automaton has 5366 states and 25336 transitions. Word has length 29 [2021-06-05 03:40:17,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:17,265 INFO L482 AbstractCegarLoop]: Abstraction has 5366 states and 25336 transitions. [2021-06-05 03:40:17,265 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:17,265 INFO L276 IsEmpty]: Start isEmpty. Operand 5366 states and 25336 transitions. [2021-06-05 03:40:17,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:17,274 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:17,274 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:17,274 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2021-06-05 03:40:17,274 INFO L430 AbstractCegarLoop]: === Iteration 169 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:17,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:17,274 INFO L82 PathProgramCache]: Analyzing trace with hash 1784894347, now seen corresponding path program 164 times [2021-06-05 03:40:17,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:17,274 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896317210] [2021-06-05 03:40:17,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:17,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:17,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:17,384 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:17,384 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896317210] [2021-06-05 03:40:17,384 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896317210] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:17,384 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:17,384 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:17,384 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165588503] [2021-06-05 03:40:17,384 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:17,384 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:17,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:17,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:17,384 INFO L87 Difference]: Start difference. First operand 5366 states and 25336 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:17,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:17,500 INFO L93 Difference]: Finished difference Result 12210 states and 54485 transitions. [2021-06-05 03:40:17,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:17,501 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:17,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:17,529 INFO L225 Difference]: With dead ends: 12210 [2021-06-05 03:40:17,530 INFO L226 Difference]: Without dead ends: 11590 [2021-06-05 03:40:17,530 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 131.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:17,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11590 states. [2021-06-05 03:40:17,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11590 to 5223. [2021-06-05 03:40:17,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5223 states, 5222 states have (on average 4.7389888931443895) internal successors, (24747), 5222 states have internal predecessors, (24747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:17,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5223 states to 5223 states and 24747 transitions. [2021-06-05 03:40:17,759 INFO L78 Accepts]: Start accepts. Automaton has 5223 states and 24747 transitions. Word has length 29 [2021-06-05 03:40:17,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:17,759 INFO L482 AbstractCegarLoop]: Abstraction has 5223 states and 24747 transitions. [2021-06-05 03:40:17,759 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:17,760 INFO L276 IsEmpty]: Start isEmpty. Operand 5223 states and 24747 transitions. [2021-06-05 03:40:17,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:17,768 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:17,768 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:17,769 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2021-06-05 03:40:17,769 INFO L430 AbstractCegarLoop]: === Iteration 170 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:17,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:17,769 INFO L82 PathProgramCache]: Analyzing trace with hash 442869003, now seen corresponding path program 165 times [2021-06-05 03:40:17,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:17,769 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814434245] [2021-06-05 03:40:17,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:17,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:17,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:17,888 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:17,888 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814434245] [2021-06-05 03:40:17,888 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814434245] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:17,888 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:17,888 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:17,888 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775859047] [2021-06-05 03:40:17,888 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:17,889 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:17,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:17,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:17,889 INFO L87 Difference]: Start difference. First operand 5223 states and 24747 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:17,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:17,987 INFO L93 Difference]: Finished difference Result 12234 states and 54645 transitions. [2021-06-05 03:40:17,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:17,987 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:17,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:18,016 INFO L225 Difference]: With dead ends: 12234 [2021-06-05 03:40:18,016 INFO L226 Difference]: Without dead ends: 11692 [2021-06-05 03:40:18,016 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 126.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:18,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11692 states. [2021-06-05 03:40:18,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11692 to 5331. [2021-06-05 03:40:18,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5331 states, 5330 states have (on average 4.718011257035648) internal successors, (25147), 5330 states have internal predecessors, (25147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:18,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5331 states to 5331 states and 25147 transitions. [2021-06-05 03:40:18,248 INFO L78 Accepts]: Start accepts. Automaton has 5331 states and 25147 transitions. Word has length 29 [2021-06-05 03:40:18,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:18,248 INFO L482 AbstractCegarLoop]: Abstraction has 5331 states and 25147 transitions. [2021-06-05 03:40:18,248 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:18,248 INFO L276 IsEmpty]: Start isEmpty. Operand 5331 states and 25147 transitions. [2021-06-05 03:40:18,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:18,257 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:18,257 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:18,257 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2021-06-05 03:40:18,258 INFO L430 AbstractCegarLoop]: === Iteration 171 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:18,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:18,258 INFO L82 PathProgramCache]: Analyzing trace with hash 361979147, now seen corresponding path program 166 times [2021-06-05 03:40:18,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:18,258 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851694002] [2021-06-05 03:40:18,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:18,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:18,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:18,392 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:18,392 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851694002] [2021-06-05 03:40:18,392 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851694002] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:18,392 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:18,392 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:18,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444395403] [2021-06-05 03:40:18,392 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:18,392 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:18,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:18,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:18,393 INFO L87 Difference]: Start difference. First operand 5331 states and 25147 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:18,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:18,526 INFO L93 Difference]: Finished difference Result 12163 states and 54262 transitions. [2021-06-05 03:40:18,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:18,526 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:18,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:18,555 INFO L225 Difference]: With dead ends: 12163 [2021-06-05 03:40:18,555 INFO L226 Difference]: Without dead ends: 11584 [2021-06-05 03:40:18,555 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 154.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:18,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11584 states. [2021-06-05 03:40:18,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11584 to 5223. [2021-06-05 03:40:18,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5223 states, 5222 states have (on average 4.728648027575642) internal successors, (24693), 5222 states have internal predecessors, (24693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:18,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5223 states to 5223 states and 24693 transitions. [2021-06-05 03:40:18,785 INFO L78 Accepts]: Start accepts. Automaton has 5223 states and 24693 transitions. Word has length 29 [2021-06-05 03:40:18,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:18,785 INFO L482 AbstractCegarLoop]: Abstraction has 5223 states and 24693 transitions. [2021-06-05 03:40:18,785 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:18,785 INFO L276 IsEmpty]: Start isEmpty. Operand 5223 states and 24693 transitions. [2021-06-05 03:40:18,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:18,794 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:18,794 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:18,794 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2021-06-05 03:40:18,794 INFO L430 AbstractCegarLoop]: === Iteration 172 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:18,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:18,794 INFO L82 PathProgramCache]: Analyzing trace with hash 1425216617, now seen corresponding path program 167 times [2021-06-05 03:40:18,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:18,794 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046629280] [2021-06-05 03:40:18,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:18,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:18,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:18,901 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:18,901 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046629280] [2021-06-05 03:40:18,901 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046629280] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:18,901 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:18,901 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:18,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567939299] [2021-06-05 03:40:18,901 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:18,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:18,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:18,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:18,902 INFO L87 Difference]: Start difference. First operand 5223 states and 24693 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:19,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:19,019 INFO L93 Difference]: Finished difference Result 12072 states and 53931 transitions. [2021-06-05 03:40:19,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:19,019 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:19,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:19,048 INFO L225 Difference]: With dead ends: 12072 [2021-06-05 03:40:19,048 INFO L226 Difference]: Without dead ends: 11595 [2021-06-05 03:40:19,048 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 130.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:19,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11595 states. [2021-06-05 03:40:19,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11595 to 5299. [2021-06-05 03:40:19,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5299 states, 5298 states have (on average 4.715175537938845) internal successors, (24981), 5298 states have internal predecessors, (24981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:19,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5299 states to 5299 states and 24981 transitions. [2021-06-05 03:40:19,277 INFO L78 Accepts]: Start accepts. Automaton has 5299 states and 24981 transitions. Word has length 29 [2021-06-05 03:40:19,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:19,278 INFO L482 AbstractCegarLoop]: Abstraction has 5299 states and 24981 transitions. [2021-06-05 03:40:19,278 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:19,278 INFO L276 IsEmpty]: Start isEmpty. Operand 5299 states and 24981 transitions. [2021-06-05 03:40:19,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:19,287 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:19,287 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:19,287 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2021-06-05 03:40:19,287 INFO L430 AbstractCegarLoop]: === Iteration 173 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:19,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:19,287 INFO L82 PathProgramCache]: Analyzing trace with hash -69461941, now seen corresponding path program 168 times [2021-06-05 03:40:19,287 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:19,287 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112690755] [2021-06-05 03:40:19,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:19,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:19,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:19,396 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:19,396 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112690755] [2021-06-05 03:40:19,396 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112690755] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:19,396 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:19,396 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:19,397 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130017336] [2021-06-05 03:40:19,397 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:19,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:19,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:19,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:19,397 INFO L87 Difference]: Start difference. First operand 5299 states and 24981 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:19,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:19,516 INFO L93 Difference]: Finished difference Result 12066 states and 53838 transitions. [2021-06-05 03:40:19,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:19,517 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:19,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:19,548 INFO L225 Difference]: With dead ends: 12066 [2021-06-05 03:40:19,548 INFO L226 Difference]: Without dead ends: 11421 [2021-06-05 03:40:19,548 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 131.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:19,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11421 states. [2021-06-05 03:40:19,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11421 to 5125. [2021-06-05 03:40:19,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5125 states, 5124 states have (on average 4.756049960967994) internal successors, (24370), 5124 states have internal predecessors, (24370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:19,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5125 states to 5125 states and 24370 transitions. [2021-06-05 03:40:19,814 INFO L78 Accepts]: Start accepts. Automaton has 5125 states and 24370 transitions. Word has length 29 [2021-06-05 03:40:19,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:19,814 INFO L482 AbstractCegarLoop]: Abstraction has 5125 states and 24370 transitions. [2021-06-05 03:40:19,814 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:19,814 INFO L276 IsEmpty]: Start isEmpty. Operand 5125 states and 24370 transitions. [2021-06-05 03:40:19,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:19,822 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:19,823 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:19,823 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2021-06-05 03:40:19,823 INFO L430 AbstractCegarLoop]: === Iteration 174 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:19,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:19,823 INFO L82 PathProgramCache]: Analyzing trace with hash 1020026571, now seen corresponding path program 169 times [2021-06-05 03:40:19,823 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:19,823 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121081598] [2021-06-05 03:40:19,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:19,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:19,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:19,973 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:19,973 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121081598] [2021-06-05 03:40:19,973 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121081598] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:19,974 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:19,974 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:19,974 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895006570] [2021-06-05 03:40:19,974 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:19,974 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:19,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:19,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:19,974 INFO L87 Difference]: Start difference. First operand 5125 states and 24370 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:20,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:20,091 INFO L93 Difference]: Finished difference Result 11771 states and 52765 transitions. [2021-06-05 03:40:20,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:20,091 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:20,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:20,119 INFO L225 Difference]: With dead ends: 11771 [2021-06-05 03:40:20,119 INFO L226 Difference]: Without dead ends: 11356 [2021-06-05 03:40:20,119 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 158.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:20,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11356 states. [2021-06-05 03:40:20,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11356 to 5265. [2021-06-05 03:40:20,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5265 states, 5264 states have (on average 4.750379939209727) internal successors, (25006), 5264 states have internal predecessors, (25006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:20,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5265 states to 5265 states and 25006 transitions. [2021-06-05 03:40:20,349 INFO L78 Accepts]: Start accepts. Automaton has 5265 states and 25006 transitions. Word has length 29 [2021-06-05 03:40:20,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:20,349 INFO L482 AbstractCegarLoop]: Abstraction has 5265 states and 25006 transitions. [2021-06-05 03:40:20,349 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:20,349 INFO L276 IsEmpty]: Start isEmpty. Operand 5265 states and 25006 transitions. [2021-06-05 03:40:20,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:20,358 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:20,358 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:20,358 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2021-06-05 03:40:20,358 INFO L430 AbstractCegarLoop]: === Iteration 175 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:20,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:20,358 INFO L82 PathProgramCache]: Analyzing trace with hash -1520120117, now seen corresponding path program 170 times [2021-06-05 03:40:20,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:20,358 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855481267] [2021-06-05 03:40:20,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:20,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:20,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:20,482 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:20,482 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855481267] [2021-06-05 03:40:20,483 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855481267] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:20,483 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:20,483 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:20,483 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995711748] [2021-06-05 03:40:20,483 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:20,483 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:20,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:20,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:20,483 INFO L87 Difference]: Start difference. First operand 5265 states and 25006 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:20,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:20,588 INFO L93 Difference]: Finished difference Result 11898 states and 53244 transitions. [2021-06-05 03:40:20,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:20,588 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:20,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:20,617 INFO L225 Difference]: With dead ends: 11898 [2021-06-05 03:40:20,617 INFO L226 Difference]: Without dead ends: 11276 [2021-06-05 03:40:20,617 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 131.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:20,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11276 states. [2021-06-05 03:40:20,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11276 to 5185. [2021-06-05 03:40:20,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5185 states, 5184 states have (on average 4.754243827160494) internal successors, (24646), 5184 states have internal predecessors, (24646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:20,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5185 states to 5185 states and 24646 transitions. [2021-06-05 03:40:20,844 INFO L78 Accepts]: Start accepts. Automaton has 5185 states and 24646 transitions. Word has length 29 [2021-06-05 03:40:20,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:20,844 INFO L482 AbstractCegarLoop]: Abstraction has 5185 states and 24646 transitions. [2021-06-05 03:40:20,844 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:20,844 INFO L276 IsEmpty]: Start isEmpty. Operand 5185 states and 24646 transitions. [2021-06-05 03:40:20,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:20,852 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:20,852 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:20,853 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2021-06-05 03:40:20,853 INFO L430 AbstractCegarLoop]: === Iteration 176 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:20,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:20,853 INFO L82 PathProgramCache]: Analyzing trace with hash -867476887, now seen corresponding path program 171 times [2021-06-05 03:40:20,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:20,853 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351426520] [2021-06-05 03:40:20,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:20,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:20,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:20,986 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:20,986 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351426520] [2021-06-05 03:40:20,986 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351426520] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:20,986 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:20,986 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:20,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250504465] [2021-06-05 03:40:20,987 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:20,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:20,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:20,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:20,987 INFO L87 Difference]: Start difference. First operand 5185 states and 24646 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:21,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:21,110 INFO L93 Difference]: Finished difference Result 11672 states and 52318 transitions. [2021-06-05 03:40:21,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:21,110 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:21,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:21,139 INFO L225 Difference]: With dead ends: 11672 [2021-06-05 03:40:21,139 INFO L226 Difference]: Without dead ends: 11257 [2021-06-05 03:40:21,139 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 151.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:21,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11257 states. [2021-06-05 03:40:21,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11257 to 5233. [2021-06-05 03:40:21,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5233 states, 5232 states have (on average 4.7442660550458715) internal successors, (24822), 5232 states have internal predecessors, (24822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:21,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5233 states to 5233 states and 24822 transitions. [2021-06-05 03:40:21,371 INFO L78 Accepts]: Start accepts. Automaton has 5233 states and 24822 transitions. Word has length 29 [2021-06-05 03:40:21,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:21,371 INFO L482 AbstractCegarLoop]: Abstraction has 5233 states and 24822 transitions. [2021-06-05 03:40:21,371 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:21,371 INFO L276 IsEmpty]: Start isEmpty. Operand 5233 states and 24822 transitions. [2021-06-05 03:40:21,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:21,380 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:21,380 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:21,380 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2021-06-05 03:40:21,380 INFO L430 AbstractCegarLoop]: === Iteration 177 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:21,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:21,381 INFO L82 PathProgramCache]: Analyzing trace with hash -1382157813, now seen corresponding path program 172 times [2021-06-05 03:40:21,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:21,381 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594008129] [2021-06-05 03:40:21,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:21,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:21,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:21,510 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:21,510 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594008129] [2021-06-05 03:40:21,510 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594008129] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:21,510 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:21,510 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:21,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208642632] [2021-06-05 03:40:21,510 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:21,510 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:21,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:21,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:21,510 INFO L87 Difference]: Start difference. First operand 5233 states and 24822 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:21,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:21,648 INFO L93 Difference]: Finished difference Result 11732 states and 52534 transitions. [2021-06-05 03:40:21,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:21,649 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:21,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:21,677 INFO L225 Difference]: With dead ends: 11732 [2021-06-05 03:40:21,677 INFO L226 Difference]: Without dead ends: 11209 [2021-06-05 03:40:21,678 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 153.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:21,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11209 states. [2021-06-05 03:40:21,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11209 to 5185. [2021-06-05 03:40:21,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5185 states, 5184 states have (on average 4.749614197530864) internal successors, (24622), 5184 states have internal predecessors, (24622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:21,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5185 states to 5185 states and 24622 transitions. [2021-06-05 03:40:21,906 INFO L78 Accepts]: Start accepts. Automaton has 5185 states and 24622 transitions. Word has length 29 [2021-06-05 03:40:21,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:21,906 INFO L482 AbstractCegarLoop]: Abstraction has 5185 states and 24622 transitions. [2021-06-05 03:40:21,906 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:21,906 INFO L276 IsEmpty]: Start isEmpty. Operand 5185 states and 24622 transitions. [2021-06-05 03:40:21,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:21,915 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:21,915 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:21,915 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2021-06-05 03:40:21,915 INFO L430 AbstractCegarLoop]: === Iteration 178 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:21,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:21,916 INFO L82 PathProgramCache]: Analyzing trace with hash -643329525, now seen corresponding path program 173 times [2021-06-05 03:40:21,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:21,916 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117302162] [2021-06-05 03:40:21,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:21,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:22,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:22,031 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:22,031 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117302162] [2021-06-05 03:40:22,031 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117302162] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:22,031 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:22,031 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:22,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832065794] [2021-06-05 03:40:22,031 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:22,031 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:22,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:22,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:22,032 INFO L87 Difference]: Start difference. First operand 5185 states and 24622 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:22,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:22,134 INFO L93 Difference]: Finished difference Result 11988 states and 53639 transitions. [2021-06-05 03:40:22,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:22,134 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:22,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:22,163 INFO L225 Difference]: With dead ends: 11988 [2021-06-05 03:40:22,163 INFO L226 Difference]: Without dead ends: 11446 [2021-06-05 03:40:22,164 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 122.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:22,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11446 states. [2021-06-05 03:40:22,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11446 to 5295. [2021-06-05 03:40:22,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5295 states, 5294 states have (on average 4.727427276161692) internal successors, (25027), 5294 states have internal predecessors, (25027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:22,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5295 states to 5295 states and 25027 transitions. [2021-06-05 03:40:22,395 INFO L78 Accepts]: Start accepts. Automaton has 5295 states and 25027 transitions. Word has length 29 [2021-06-05 03:40:22,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:22,395 INFO L482 AbstractCegarLoop]: Abstraction has 5295 states and 25027 transitions. [2021-06-05 03:40:22,395 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:22,396 INFO L276 IsEmpty]: Start isEmpty. Operand 5295 states and 25027 transitions. [2021-06-05 03:40:22,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:22,405 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:22,405 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:22,405 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2021-06-05 03:40:22,405 INFO L430 AbstractCegarLoop]: === Iteration 179 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:22,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:22,405 INFO L82 PathProgramCache]: Analyzing trace with hash -1384281623, now seen corresponding path program 174 times [2021-06-05 03:40:22,405 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:22,405 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502094432] [2021-06-05 03:40:22,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:22,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:22,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:22,529 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:22,529 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502094432] [2021-06-05 03:40:22,529 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502094432] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:22,529 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:22,529 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:22,529 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969430914] [2021-06-05 03:40:22,529 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:22,529 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:22,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:22,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:22,530 INFO L87 Difference]: Start difference. First operand 5295 states and 25027 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:22,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:22,654 INFO L93 Difference]: Finished difference Result 11921 states and 53266 transitions. [2021-06-05 03:40:22,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:22,654 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:22,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:22,685 INFO L225 Difference]: With dead ends: 11921 [2021-06-05 03:40:22,685 INFO L226 Difference]: Without dead ends: 11296 [2021-06-05 03:40:22,685 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 146.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:22,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11296 states. [2021-06-05 03:40:22,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11296 to 5145. [2021-06-05 03:40:22,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5145 states, 5144 states have (on average 4.755443234836703) internal successors, (24462), 5144 states have internal predecessors, (24462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:22,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5145 states to 5145 states and 24462 transitions. [2021-06-05 03:40:22,915 INFO L78 Accepts]: Start accepts. Automaton has 5145 states and 24462 transitions. Word has length 29 [2021-06-05 03:40:22,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:22,915 INFO L482 AbstractCegarLoop]: Abstraction has 5145 states and 24462 transitions. [2021-06-05 03:40:22,916 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:22,916 INFO L276 IsEmpty]: Start isEmpty. Operand 5145 states and 24462 transitions. [2021-06-05 03:40:22,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:22,924 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:22,925 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:22,925 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2021-06-05 03:40:22,925 INFO L430 AbstractCegarLoop]: === Iteration 180 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:22,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:22,925 INFO L82 PathProgramCache]: Analyzing trace with hash -1816893655, now seen corresponding path program 175 times [2021-06-05 03:40:22,925 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:22,925 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117707249] [2021-06-05 03:40:22,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:22,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:23,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:23,061 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:23,061 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117707249] [2021-06-05 03:40:23,061 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117707249] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:23,061 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:23,061 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:23,061 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486485555] [2021-06-05 03:40:23,061 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:23,061 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:23,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:23,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:23,061 INFO L87 Difference]: Start difference. First operand 5145 states and 24462 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:23,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:23,183 INFO L93 Difference]: Finished difference Result 11765 states and 52726 transitions. [2021-06-05 03:40:23,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:23,184 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:23,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:23,212 INFO L225 Difference]: With dead ends: 11765 [2021-06-05 03:40:23,212 INFO L226 Difference]: Without dead ends: 11350 [2021-06-05 03:40:23,212 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 156.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:23,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11350 states. [2021-06-05 03:40:23,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11350 to 5265. [2021-06-05 03:40:23,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5265 states, 5264 states have (on average 4.746580547112462) internal successors, (24986), 5264 states have internal predecessors, (24986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:23,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5265 states to 5265 states and 24986 transitions. [2021-06-05 03:40:23,441 INFO L78 Accepts]: Start accepts. Automaton has 5265 states and 24986 transitions. Word has length 29 [2021-06-05 03:40:23,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:23,441 INFO L482 AbstractCegarLoop]: Abstraction has 5265 states and 24986 transitions. [2021-06-05 03:40:23,442 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:23,442 INFO L276 IsEmpty]: Start isEmpty. Operand 5265 states and 24986 transitions. [2021-06-05 03:40:23,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:23,450 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:23,450 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:23,450 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2021-06-05 03:40:23,450 INFO L430 AbstractCegarLoop]: === Iteration 181 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:23,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:23,451 INFO L82 PathProgramCache]: Analyzing trace with hash -62073047, now seen corresponding path program 176 times [2021-06-05 03:40:23,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:23,451 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767544953] [2021-06-05 03:40:23,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:23,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:23,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:23,579 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:23,579 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767544953] [2021-06-05 03:40:23,579 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767544953] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:23,579 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:23,579 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:23,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935835207] [2021-06-05 03:40:23,579 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:23,579 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:23,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:23,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:23,580 INFO L87 Difference]: Start difference. First operand 5265 states and 24986 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:23,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:23,683 INFO L93 Difference]: Finished difference Result 11892 states and 53205 transitions. [2021-06-05 03:40:23,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:23,683 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:23,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:23,711 INFO L225 Difference]: With dead ends: 11892 [2021-06-05 03:40:23,711 INFO L226 Difference]: Without dead ends: 11270 [2021-06-05 03:40:23,711 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 135.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:23,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11270 states. [2021-06-05 03:40:23,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11270 to 5185. [2021-06-05 03:40:23,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5185 states, 5184 states have (on average 4.750385802469136) internal successors, (24626), 5184 states have internal predecessors, (24626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:23,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5185 states to 5185 states and 24626 transitions. [2021-06-05 03:40:23,939 INFO L78 Accepts]: Start accepts. Automaton has 5185 states and 24626 transitions. Word has length 29 [2021-06-05 03:40:23,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:23,939 INFO L482 AbstractCegarLoop]: Abstraction has 5185 states and 24626 transitions. [2021-06-05 03:40:23,939 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:23,939 INFO L276 IsEmpty]: Start isEmpty. Operand 5185 states and 24626 transitions. [2021-06-05 03:40:23,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:23,948 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:23,948 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:23,948 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2021-06-05 03:40:23,948 INFO L430 AbstractCegarLoop]: === Iteration 182 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:23,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:23,948 INFO L82 PathProgramCache]: Analyzing trace with hash 173638377, now seen corresponding path program 177 times [2021-06-05 03:40:23,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:23,948 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180820622] [2021-06-05 03:40:23,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:23,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:24,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:24,062 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:24,062 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180820622] [2021-06-05 03:40:24,062 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180820622] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:24,062 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:24,062 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:24,063 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114330417] [2021-06-05 03:40:24,063 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:24,063 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:24,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:24,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:24,063 INFO L87 Difference]: Start difference. First operand 5185 states and 24626 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:24,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:24,190 INFO L93 Difference]: Finished difference Result 11662 states and 52267 transitions. [2021-06-05 03:40:24,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:24,190 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:24,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:24,225 INFO L225 Difference]: With dead ends: 11662 [2021-06-05 03:40:24,225 INFO L226 Difference]: Without dead ends: 11247 [2021-06-05 03:40:24,225 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 137.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:24,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11247 states. [2021-06-05 03:40:24,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11247 to 5233. [2021-06-05 03:40:24,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5233 states, 5232 states have (on average 4.740443425076452) internal successors, (24802), 5232 states have internal predecessors, (24802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:24,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5233 states to 5233 states and 24802 transitions. [2021-06-05 03:40:24,460 INFO L78 Accepts]: Start accepts. Automaton has 5233 states and 24802 transitions. Word has length 29 [2021-06-05 03:40:24,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:24,460 INFO L482 AbstractCegarLoop]: Abstraction has 5233 states and 24802 transitions. [2021-06-05 03:40:24,460 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:24,460 INFO L276 IsEmpty]: Start isEmpty. Operand 5233 states and 24802 transitions. [2021-06-05 03:40:24,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:24,469 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:24,469 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:24,469 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2021-06-05 03:40:24,469 INFO L430 AbstractCegarLoop]: === Iteration 183 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:24,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:24,469 INFO L82 PathProgramCache]: Analyzing trace with hash -956714485, now seen corresponding path program 178 times [2021-06-05 03:40:24,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:24,470 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764845687] [2021-06-05 03:40:24,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:24,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:24,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:24,582 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:24,582 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764845687] [2021-06-05 03:40:24,583 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764845687] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:24,583 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:24,583 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:24,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590124443] [2021-06-05 03:40:24,583 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:24,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:24,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:24,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:24,583 INFO L87 Difference]: Start difference. First operand 5233 states and 24802 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:24,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:24,703 INFO L93 Difference]: Finished difference Result 11718 states and 52471 transitions. [2021-06-05 03:40:24,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:24,703 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:24,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:24,733 INFO L225 Difference]: With dead ends: 11718 [2021-06-05 03:40:24,734 INFO L226 Difference]: Without dead ends: 11199 [2021-06-05 03:40:24,734 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 137.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:24,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11199 states. [2021-06-05 03:40:24,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11199 to 5185. [2021-06-05 03:40:24,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5185 states, 5184 states have (on average 4.745756172839506) internal successors, (24602), 5184 states have internal predecessors, (24602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:24,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5185 states to 5185 states and 24602 transitions. [2021-06-05 03:40:24,960 INFO L78 Accepts]: Start accepts. Automaton has 5185 states and 24602 transitions. Word has length 29 [2021-06-05 03:40:24,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:24,960 INFO L482 AbstractCegarLoop]: Abstraction has 5185 states and 24602 transitions. [2021-06-05 03:40:24,960 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:24,960 INFO L276 IsEmpty]: Start isEmpty. Operand 5185 states and 24602 transitions. [2021-06-05 03:40:24,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:24,968 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:24,969 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:24,969 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2021-06-05 03:40:24,969 INFO L430 AbstractCegarLoop]: === Iteration 184 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:24,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:24,969 INFO L82 PathProgramCache]: Analyzing trace with hash -890084853, now seen corresponding path program 179 times [2021-06-05 03:40:24,969 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:24,969 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533347008] [2021-06-05 03:40:24,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:24,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:25,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:25,112 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:25,112 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533347008] [2021-06-05 03:40:25,112 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533347008] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:25,112 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:25,112 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:25,112 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106195676] [2021-06-05 03:40:25,112 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:25,112 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:25,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:25,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:25,113 INFO L87 Difference]: Start difference. First operand 5185 states and 24602 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:25,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:25,229 INFO L93 Difference]: Finished difference Result 11976 states and 53581 transitions. [2021-06-05 03:40:25,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:25,229 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:25,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:25,259 INFO L225 Difference]: With dead ends: 11976 [2021-06-05 03:40:25,259 INFO L226 Difference]: Without dead ends: 11434 [2021-06-05 03:40:25,259 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 148.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:25,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11434 states. [2021-06-05 03:40:25,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11434 to 5293. [2021-06-05 03:40:25,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5293 states, 5292 states have (on average 4.724489795918367) internal successors, (25002), 5292 states have internal predecessors, (25002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:25,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5293 states to 5293 states and 25002 transitions. [2021-06-05 03:40:25,490 INFO L78 Accepts]: Start accepts. Automaton has 5293 states and 25002 transitions. Word has length 29 [2021-06-05 03:40:25,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:25,490 INFO L482 AbstractCegarLoop]: Abstraction has 5293 states and 25002 transitions. [2021-06-05 03:40:25,490 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:25,490 INFO L276 IsEmpty]: Start isEmpty. Operand 5293 states and 25002 transitions. [2021-06-05 03:40:25,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:25,499 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:25,499 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:25,499 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2021-06-05 03:40:25,499 INFO L430 AbstractCegarLoop]: === Iteration 185 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:25,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:25,499 INFO L82 PathProgramCache]: Analyzing trace with hash -979844503, now seen corresponding path program 180 times [2021-06-05 03:40:25,499 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:25,500 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592949203] [2021-06-05 03:40:25,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:25,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:25,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:25,625 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:25,625 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592949203] [2021-06-05 03:40:25,626 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592949203] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:25,626 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:25,626 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:25,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636206610] [2021-06-05 03:40:25,626 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:25,626 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:25,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:25,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:25,626 INFO L87 Difference]: Start difference. First operand 5293 states and 25002 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:25,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:25,749 INFO L93 Difference]: Finished difference Result 11905 states and 53198 transitions. [2021-06-05 03:40:25,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:25,749 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:25,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:25,778 INFO L225 Difference]: With dead ends: 11905 [2021-06-05 03:40:25,778 INFO L226 Difference]: Without dead ends: 11286 [2021-06-05 03:40:25,778 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 155.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:25,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11286 states. [2021-06-05 03:40:25,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11286 to 5145. [2021-06-05 03:40:25,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5145 states, 5144 states have (on average 4.751555209953343) internal successors, (24442), 5144 states have internal predecessors, (24442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:26,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5145 states to 5145 states and 24442 transitions. [2021-06-05 03:40:26,003 INFO L78 Accepts]: Start accepts. Automaton has 5145 states and 24442 transitions. Word has length 29 [2021-06-05 03:40:26,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:26,003 INFO L482 AbstractCegarLoop]: Abstraction has 5145 states and 24442 transitions. [2021-06-05 03:40:26,003 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:26,003 INFO L276 IsEmpty]: Start isEmpty. Operand 5145 states and 24442 transitions. [2021-06-05 03:40:26,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:26,011 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:26,012 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:26,012 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2021-06-05 03:40:26,012 INFO L430 AbstractCegarLoop]: === Iteration 186 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:26,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:26,012 INFO L82 PathProgramCache]: Analyzing trace with hash 721354503, now seen corresponding path program 181 times [2021-06-05 03:40:26,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:26,012 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804228744] [2021-06-05 03:40:26,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:26,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:26,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:26,129 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:26,129 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804228744] [2021-06-05 03:40:26,129 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804228744] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:26,129 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:26,129 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:26,129 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285924744] [2021-06-05 03:40:26,130 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:26,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:26,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:26,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:26,130 INFO L87 Difference]: Start difference. First operand 5145 states and 24442 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:26,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:26,259 INFO L93 Difference]: Finished difference Result 11519 states and 51668 transitions. [2021-06-05 03:40:26,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:26,259 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:26,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:26,287 INFO L225 Difference]: With dead ends: 11519 [2021-06-05 03:40:26,287 INFO L226 Difference]: Without dead ends: 11104 [2021-06-05 03:40:26,287 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 141.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:26,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11104 states. [2021-06-05 03:40:26,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11104 to 5217. [2021-06-05 03:40:26,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5217 states, 5216 states have (on average 4.743481595092025) internal successors, (24742), 5216 states have internal predecessors, (24742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:26,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5217 states to 5217 states and 24742 transitions. [2021-06-05 03:40:26,514 INFO L78 Accepts]: Start accepts. Automaton has 5217 states and 24742 transitions. Word has length 29 [2021-06-05 03:40:26,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:26,514 INFO L482 AbstractCegarLoop]: Abstraction has 5217 states and 24742 transitions. [2021-06-05 03:40:26,514 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:26,514 INFO L276 IsEmpty]: Start isEmpty. Operand 5217 states and 24742 transitions. [2021-06-05 03:40:26,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:26,523 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:26,523 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:26,523 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2021-06-05 03:40:26,523 INFO L430 AbstractCegarLoop]: === Iteration 187 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:26,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:26,523 INFO L82 PathProgramCache]: Analyzing trace with hash 206673577, now seen corresponding path program 182 times [2021-06-05 03:40:26,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:26,523 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76479597] [2021-06-05 03:40:26,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:26,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:26,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:26,640 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:26,641 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76479597] [2021-06-05 03:40:26,641 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76479597] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:26,641 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:26,641 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:26,641 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774385909] [2021-06-05 03:40:26,641 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:26,641 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:26,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:26,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:26,641 INFO L87 Difference]: Start difference. First operand 5217 states and 24742 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:26,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:26,776 INFO L93 Difference]: Finished difference Result 11579 states and 51884 transitions. [2021-06-05 03:40:26,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:26,776 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:26,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:26,804 INFO L225 Difference]: With dead ends: 11579 [2021-06-05 03:40:26,804 INFO L226 Difference]: Without dead ends: 11056 [2021-06-05 03:40:26,804 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 142.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:26,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11056 states. [2021-06-05 03:40:27,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11056 to 5169. [2021-06-05 03:40:27,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5169 states, 5168 states have (on average 4.748839009287925) internal successors, (24542), 5168 states have internal predecessors, (24542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:27,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5169 states to 5169 states and 24542 transitions. [2021-06-05 03:40:27,029 INFO L78 Accepts]: Start accepts. Automaton has 5169 states and 24542 transitions. Word has length 29 [2021-06-05 03:40:27,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:27,029 INFO L482 AbstractCegarLoop]: Abstraction has 5169 states and 24542 transitions. [2021-06-05 03:40:27,029 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:27,029 INFO L276 IsEmpty]: Start isEmpty. Operand 5169 states and 24542 transitions. [2021-06-05 03:40:27,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:27,037 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:27,038 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:27,038 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2021-06-05 03:40:27,038 INFO L430 AbstractCegarLoop]: === Iteration 188 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:27,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:27,038 INFO L82 PathProgramCache]: Analyzing trace with hash 240452457, now seen corresponding path program 183 times [2021-06-05 03:40:27,038 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:27,038 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139790395] [2021-06-05 03:40:27,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:27,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:27,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:27,156 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:27,156 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139790395] [2021-06-05 03:40:27,156 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139790395] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:27,156 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:27,156 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:27,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154631007] [2021-06-05 03:40:27,156 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:27,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:27,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:27,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:27,157 INFO L87 Difference]: Start difference. First operand 5169 states and 24542 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:27,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:27,292 INFO L93 Difference]: Finished difference Result 11515 states and 51632 transitions. [2021-06-05 03:40:27,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:27,292 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:27,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:27,320 INFO L225 Difference]: With dead ends: 11515 [2021-06-05 03:40:27,320 INFO L226 Difference]: Without dead ends: 11100 [2021-06-05 03:40:27,321 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 131.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:27,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11100 states. [2021-06-05 03:40:27,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11100 to 5217. [2021-06-05 03:40:27,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5217 states, 5216 states have (on average 4.73888036809816) internal successors, (24718), 5216 states have internal predecessors, (24718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:27,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5217 states to 5217 states and 24718 transitions. [2021-06-05 03:40:27,548 INFO L78 Accepts]: Start accepts. Automaton has 5217 states and 24718 transitions. Word has length 29 [2021-06-05 03:40:27,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:27,548 INFO L482 AbstractCegarLoop]: Abstraction has 5217 states and 24718 transitions. [2021-06-05 03:40:27,548 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:27,548 INFO L276 IsEmpty]: Start isEmpty. Operand 5217 states and 24718 transitions. [2021-06-05 03:40:27,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:27,556 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:27,556 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:27,556 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2021-06-05 03:40:27,557 INFO L430 AbstractCegarLoop]: === Iteration 189 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:27,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:27,557 INFO L82 PathProgramCache]: Analyzing trace with hash 1923628585, now seen corresponding path program 184 times [2021-06-05 03:40:27,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:27,557 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135981213] [2021-06-05 03:40:27,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:27,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:27,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:27,661 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:27,661 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135981213] [2021-06-05 03:40:27,661 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135981213] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:27,661 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:27,661 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:27,661 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974434516] [2021-06-05 03:40:27,661 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:27,661 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:27,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:27,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:27,662 INFO L87 Difference]: Start difference. First operand 5217 states and 24718 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:27,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:27,775 INFO L93 Difference]: Finished difference Result 11571 states and 51836 transitions. [2021-06-05 03:40:27,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:27,776 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:27,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:27,803 INFO L225 Difference]: With dead ends: 11571 [2021-06-05 03:40:27,803 INFO L226 Difference]: Without dead ends: 11052 [2021-06-05 03:40:27,803 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:27,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11052 states. [2021-06-05 03:40:28,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11052 to 5169. [2021-06-05 03:40:28,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5169 states, 5168 states have (on average 4.7441950464396285) internal successors, (24518), 5168 states have internal predecessors, (24518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:28,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5169 states to 5169 states and 24518 transitions. [2021-06-05 03:40:28,029 INFO L78 Accepts]: Start accepts. Automaton has 5169 states and 24518 transitions. Word has length 29 [2021-06-05 03:40:28,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:28,029 INFO L482 AbstractCegarLoop]: Abstraction has 5169 states and 24518 transitions. [2021-06-05 03:40:28,029 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:28,029 INFO L276 IsEmpty]: Start isEmpty. Operand 5169 states and 24518 transitions. [2021-06-05 03:40:28,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:28,038 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:28,038 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:28,038 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2021-06-05 03:40:28,038 INFO L430 AbstractCegarLoop]: === Iteration 190 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:28,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:28,038 INFO L82 PathProgramCache]: Analyzing trace with hash 564299083, now seen corresponding path program 185 times [2021-06-05 03:40:28,038 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:28,038 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554888107] [2021-06-05 03:40:28,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:28,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:28,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:28,163 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:28,163 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554888107] [2021-06-05 03:40:28,163 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554888107] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:28,163 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:28,163 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:28,164 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772864064] [2021-06-05 03:40:28,164 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:28,164 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:28,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:28,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:28,164 INFO L87 Difference]: Start difference. First operand 5169 states and 24518 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:28,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:28,289 INFO L93 Difference]: Finished difference Result 11663 states and 52276 transitions. [2021-06-05 03:40:28,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:28,289 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:28,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:28,317 INFO L225 Difference]: With dead ends: 11663 [2021-06-05 03:40:28,317 INFO L226 Difference]: Without dead ends: 11188 [2021-06-05 03:40:28,317 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 146.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:28,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11188 states. [2021-06-05 03:40:28,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11188 to 5245. [2021-06-05 03:40:28,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5245 states, 5244 states have (on average 4.730358504958048) internal successors, (24806), 5244 states have internal predecessors, (24806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:28,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5245 states to 5245 states and 24806 transitions. [2021-06-05 03:40:28,547 INFO L78 Accepts]: Start accepts. Automaton has 5245 states and 24806 transitions. Word has length 29 [2021-06-05 03:40:28,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:28,548 INFO L482 AbstractCegarLoop]: Abstraction has 5245 states and 24806 transitions. [2021-06-05 03:40:28,548 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:28,548 INFO L276 IsEmpty]: Start isEmpty. Operand 5245 states and 24806 transitions. [2021-06-05 03:40:28,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:28,557 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:28,557 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:28,557 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2021-06-05 03:40:28,557 INFO L430 AbstractCegarLoop]: === Iteration 191 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:28,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:28,557 INFO L82 PathProgramCache]: Analyzing trace with hash -1479037911, now seen corresponding path program 186 times [2021-06-05 03:40:28,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:28,557 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092686942] [2021-06-05 03:40:28,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:28,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:28,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:28,663 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:28,663 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092686942] [2021-06-05 03:40:28,663 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092686942] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:28,664 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:28,664 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:28,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634994848] [2021-06-05 03:40:28,664 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:28,664 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:28,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:28,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:28,664 INFO L87 Difference]: Start difference. First operand 5245 states and 24806 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:28,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:28,789 INFO L93 Difference]: Finished difference Result 11659 states and 52188 transitions. [2021-06-05 03:40:28,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:28,789 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:28,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:28,817 INFO L225 Difference]: With dead ends: 11659 [2021-06-05 03:40:28,817 INFO L226 Difference]: Without dead ends: 11088 [2021-06-05 03:40:28,818 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 130.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:28,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11088 states. [2021-06-05 03:40:29,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11088 to 5145. [2021-06-05 03:40:29,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5145 states, 5144 states have (on average 4.749222395023328) internal successors, (24430), 5144 states have internal predecessors, (24430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:29,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5145 states to 5145 states and 24430 transitions. [2021-06-05 03:40:29,100 INFO L78 Accepts]: Start accepts. Automaton has 5145 states and 24430 transitions. Word has length 29 [2021-06-05 03:40:29,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:29,100 INFO L482 AbstractCegarLoop]: Abstraction has 5145 states and 24430 transitions. [2021-06-05 03:40:29,100 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:29,100 INFO L276 IsEmpty]: Start isEmpty. Operand 5145 states and 24430 transitions. [2021-06-05 03:40:29,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:29,109 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:29,109 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:29,109 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2021-06-05 03:40:29,109 INFO L430 AbstractCegarLoop]: === Iteration 192 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:29,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:29,109 INFO L82 PathProgramCache]: Analyzing trace with hash -1845729973, now seen corresponding path program 187 times [2021-06-05 03:40:29,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:29,110 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913655803] [2021-06-05 03:40:29,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:29,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:29,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:29,230 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:29,230 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913655803] [2021-06-05 03:40:29,230 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913655803] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:29,230 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:29,230 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:29,230 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549693026] [2021-06-05 03:40:29,230 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:29,230 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:29,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:29,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:29,231 INFO L87 Difference]: Start difference. First operand 5145 states and 24430 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:29,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:29,332 INFO L93 Difference]: Finished difference Result 12114 states and 54260 transitions. [2021-06-05 03:40:29,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:29,332 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:29,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:29,362 INFO L225 Difference]: With dead ends: 12114 [2021-06-05 03:40:29,362 INFO L226 Difference]: Without dead ends: 11572 [2021-06-05 03:40:29,362 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 111.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:29,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11572 states. [2021-06-05 03:40:29,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11572 to 5309. [2021-06-05 03:40:29,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5309 states, 5308 states have (on average 4.73172569706104) internal successors, (25116), 5308 states have internal predecessors, (25116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:29,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5309 states to 5309 states and 25116 transitions. [2021-06-05 03:40:29,597 INFO L78 Accepts]: Start accepts. Automaton has 5309 states and 25116 transitions. Word has length 29 [2021-06-05 03:40:29,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:29,597 INFO L482 AbstractCegarLoop]: Abstraction has 5309 states and 25116 transitions. [2021-06-05 03:40:29,597 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:29,598 INFO L276 IsEmpty]: Start isEmpty. Operand 5309 states and 25116 transitions. [2021-06-05 03:40:29,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:29,607 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:29,607 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:29,607 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2021-06-05 03:40:29,607 INFO L430 AbstractCegarLoop]: === Iteration 193 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:29,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:29,608 INFO L82 PathProgramCache]: Analyzing trace with hash 1708285225, now seen corresponding path program 188 times [2021-06-05 03:40:29,608 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:29,608 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475411521] [2021-06-05 03:40:29,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:29,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:29,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:29,715 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:29,716 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475411521] [2021-06-05 03:40:29,716 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475411521] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:29,716 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:29,716 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:29,716 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447814771] [2021-06-05 03:40:29,716 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:29,716 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:29,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:29,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:29,716 INFO L87 Difference]: Start difference. First operand 5309 states and 25116 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:29,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:29,839 INFO L93 Difference]: Finished difference Result 12047 states and 53887 transitions. [2021-06-05 03:40:29,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:29,839 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:29,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:29,867 INFO L225 Difference]: With dead ends: 12047 [2021-06-05 03:40:29,868 INFO L226 Difference]: Without dead ends: 11462 [2021-06-05 03:40:29,868 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:29,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11462 states. [2021-06-05 03:40:30,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11462 to 5199. [2021-06-05 03:40:30,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5199 states, 5198 states have (on average 4.7435552135436705) internal successors, (24657), 5198 states have internal predecessors, (24657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:30,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5199 states to 5199 states and 24657 transitions. [2021-06-05 03:40:30,097 INFO L78 Accepts]: Start accepts. Automaton has 5199 states and 24657 transitions. Word has length 29 [2021-06-05 03:40:30,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:30,097 INFO L482 AbstractCegarLoop]: Abstraction has 5199 states and 24657 transitions. [2021-06-05 03:40:30,098 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:30,098 INFO L276 IsEmpty]: Start isEmpty. Operand 5199 states and 24657 transitions. [2021-06-05 03:40:30,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:30,106 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:30,106 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:30,106 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2021-06-05 03:40:30,107 INFO L430 AbstractCegarLoop]: === Iteration 194 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:30,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:30,107 INFO L82 PathProgramCache]: Analyzing trace with hash 1602440361, now seen corresponding path program 189 times [2021-06-05 03:40:30,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:30,107 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312993478] [2021-06-05 03:40:30,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:30,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:30,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:30,225 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:30,225 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312993478] [2021-06-05 03:40:30,225 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312993478] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:30,225 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:30,225 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:30,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551456243] [2021-06-05 03:40:30,225 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:30,225 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:30,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:30,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:30,226 INFO L87 Difference]: Start difference. First operand 5199 states and 24657 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:30,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:30,323 INFO L93 Difference]: Finished difference Result 12108 states and 54187 transitions. [2021-06-05 03:40:30,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:30,323 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:30,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:30,352 INFO L225 Difference]: With dead ends: 12108 [2021-06-05 03:40:30,352 INFO L226 Difference]: Without dead ends: 11566 [2021-06-05 03:40:30,352 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 124.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:30,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11566 states. [2021-06-05 03:40:30,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11566 to 5307. [2021-06-05 03:40:30,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5307 states, 5306 states have (on average 4.72238974745571) internal successors, (25057), 5306 states have internal predecessors, (25057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:30,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5307 states to 5307 states and 25057 transitions. [2021-06-05 03:40:30,585 INFO L78 Accepts]: Start accepts. Automaton has 5307 states and 25057 transitions. Word has length 29 [2021-06-05 03:40:30,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:30,585 INFO L482 AbstractCegarLoop]: Abstraction has 5307 states and 25057 transitions. [2021-06-05 03:40:30,585 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:30,585 INFO L276 IsEmpty]: Start isEmpty. Operand 5307 states and 25057 transitions. [2021-06-05 03:40:30,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:30,594 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:30,594 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:30,594 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2021-06-05 03:40:30,594 INFO L430 AbstractCegarLoop]: === Iteration 195 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:30,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:30,594 INFO L82 PathProgramCache]: Analyzing trace with hash -197675607, now seen corresponding path program 190 times [2021-06-05 03:40:30,594 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:30,594 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239770568] [2021-06-05 03:40:30,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:30,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:30,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:30,714 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:30,714 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239770568] [2021-06-05 03:40:30,714 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239770568] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:30,714 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:30,714 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:30,714 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603649074] [2021-06-05 03:40:30,714 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:30,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:30,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:30,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:30,714 INFO L87 Difference]: Start difference. First operand 5307 states and 25057 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:30,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:30,828 INFO L93 Difference]: Finished difference Result 12037 states and 53804 transitions. [2021-06-05 03:40:30,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:30,828 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:30,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:30,856 INFO L225 Difference]: With dead ends: 12037 [2021-06-05 03:40:30,856 INFO L226 Difference]: Without dead ends: 11458 [2021-06-05 03:40:30,856 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 140.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:30,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11458 states. [2021-06-05 03:40:31,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11458 to 5199. [2021-06-05 03:40:31,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5199 states, 5198 states have (on average 4.7331666025394385) internal successors, (24603), 5198 states have internal predecessors, (24603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:31,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5199 states to 5199 states and 24603 transitions. [2021-06-05 03:40:31,087 INFO L78 Accepts]: Start accepts. Automaton has 5199 states and 24603 transitions. Word has length 29 [2021-06-05 03:40:31,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:31,087 INFO L482 AbstractCegarLoop]: Abstraction has 5199 states and 24603 transitions. [2021-06-05 03:40:31,087 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:31,087 INFO L276 IsEmpty]: Start isEmpty. Operand 5199 states and 24603 transitions. [2021-06-05 03:40:31,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:31,095 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:31,095 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:31,096 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2021-06-05 03:40:31,096 INFO L430 AbstractCegarLoop]: === Iteration 196 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:31,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:31,096 INFO L82 PathProgramCache]: Analyzing trace with hash 1348607495, now seen corresponding path program 191 times [2021-06-05 03:40:31,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:31,096 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790769329] [2021-06-05 03:40:31,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:31,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:31,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:31,199 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:31,199 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790769329] [2021-06-05 03:40:31,199 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790769329] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:31,199 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:31,199 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:31,199 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622793864] [2021-06-05 03:40:31,199 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:31,200 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:31,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:31,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:31,200 INFO L87 Difference]: Start difference. First operand 5199 states and 24603 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:31,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:31,322 INFO L93 Difference]: Finished difference Result 11942 states and 53463 transitions. [2021-06-05 03:40:31,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:31,322 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:31,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:31,350 INFO L225 Difference]: With dead ends: 11942 [2021-06-05 03:40:31,351 INFO L226 Difference]: Without dead ends: 11467 [2021-06-05 03:40:31,351 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:31,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11467 states. [2021-06-05 03:40:31,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11467 to 5275. [2021-06-05 03:40:31,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5275 states, 5274 states have (on average 4.719567690557452) internal successors, (24891), 5274 states have internal predecessors, (24891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:31,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5275 states to 5275 states and 24891 transitions. [2021-06-05 03:40:31,585 INFO L78 Accepts]: Start accepts. Automaton has 5275 states and 24891 transitions. Word has length 29 [2021-06-05 03:40:31,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:31,585 INFO L482 AbstractCegarLoop]: Abstraction has 5275 states and 24891 transitions. [2021-06-05 03:40:31,585 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:31,585 INFO L276 IsEmpty]: Start isEmpty. Operand 5275 states and 24891 transitions. [2021-06-05 03:40:31,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:31,594 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:31,594 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:31,594 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2021-06-05 03:40:31,594 INFO L430 AbstractCegarLoop]: === Iteration 197 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:31,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:31,595 INFO L82 PathProgramCache]: Analyzing trace with hash -1865297175, now seen corresponding path program 192 times [2021-06-05 03:40:31,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:31,595 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522987833] [2021-06-05 03:40:31,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:31,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:31,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:31,709 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:31,709 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522987833] [2021-06-05 03:40:31,709 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522987833] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:31,709 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:31,709 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:31,709 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635509324] [2021-06-05 03:40:31,710 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:31,710 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:31,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:31,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:31,710 INFO L87 Difference]: Start difference. First operand 5275 states and 24891 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:31,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:31,838 INFO L93 Difference]: Finished difference Result 11938 states and 53375 transitions. [2021-06-05 03:40:31,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:31,838 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:31,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:31,866 INFO L225 Difference]: With dead ends: 11938 [2021-06-05 03:40:31,866 INFO L226 Difference]: Without dead ends: 11317 [2021-06-05 03:40:31,866 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 129.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:31,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11317 states. [2021-06-05 03:40:32,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11317 to 5125. [2021-06-05 03:40:32,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5125 states, 5124 states have (on average 4.754098360655738) internal successors, (24360), 5124 states have internal predecessors, (24360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:32,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5125 states to 5125 states and 24360 transitions. [2021-06-05 03:40:32,090 INFO L78 Accepts]: Start accepts. Automaton has 5125 states and 24360 transitions. Word has length 29 [2021-06-05 03:40:32,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:32,090 INFO L482 AbstractCegarLoop]: Abstraction has 5125 states and 24360 transitions. [2021-06-05 03:40:32,090 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:32,090 INFO L276 IsEmpty]: Start isEmpty. Operand 5125 states and 24360 transitions. [2021-06-05 03:40:32,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:32,099 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:32,099 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:32,099 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2021-06-05 03:40:32,099 INFO L430 AbstractCegarLoop]: === Iteration 198 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:32,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:32,099 INFO L82 PathProgramCache]: Analyzing trace with hash -1579137529, now seen corresponding path program 193 times [2021-06-05 03:40:32,099 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:32,099 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565022896] [2021-06-05 03:40:32,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:32,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:32,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:32,224 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:32,224 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565022896] [2021-06-05 03:40:32,225 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565022896] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:32,225 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:32,225 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:32,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370413054] [2021-06-05 03:40:32,225 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:32,225 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:32,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:32,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:32,225 INFO L87 Difference]: Start difference. First operand 5125 states and 24360 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:32,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:32,362 INFO L93 Difference]: Finished difference Result 11312 states and 50753 transitions. [2021-06-05 03:40:32,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:32,363 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:32,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:32,393 INFO L225 Difference]: With dead ends: 11312 [2021-06-05 03:40:32,393 INFO L226 Difference]: Without dead ends: 10897 [2021-06-05 03:40:32,393 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 148.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:32,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10897 states. [2021-06-05 03:40:32,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10897 to 5209. [2021-06-05 03:40:32,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5209 states, 5208 states have (on average 4.7480798771121355) internal successors, (24728), 5208 states have internal predecessors, (24728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:32,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5209 states to 5209 states and 24728 transitions. [2021-06-05 03:40:32,618 INFO L78 Accepts]: Start accepts. Automaton has 5209 states and 24728 transitions. Word has length 29 [2021-06-05 03:40:32,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:32,618 INFO L482 AbstractCegarLoop]: Abstraction has 5209 states and 24728 transitions. [2021-06-05 03:40:32,618 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:32,618 INFO L276 IsEmpty]: Start isEmpty. Operand 5209 states and 24728 transitions. [2021-06-05 03:40:32,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:32,627 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:32,627 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:32,627 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2021-06-05 03:40:32,627 INFO L430 AbstractCegarLoop]: === Iteration 199 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:32,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:32,627 INFO L82 PathProgramCache]: Analyzing trace with hash -862474583, now seen corresponding path program 194 times [2021-06-05 03:40:32,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:32,627 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181628619] [2021-06-05 03:40:32,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:32,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:32,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:32,750 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:32,750 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181628619] [2021-06-05 03:40:32,750 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181628619] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:32,750 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:32,750 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:32,750 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133586472] [2021-06-05 03:40:32,751 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:32,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:32,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:32,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:32,751 INFO L87 Difference]: Start difference. First operand 5209 states and 24728 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:32,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:32,875 INFO L93 Difference]: Finished difference Result 11374 states and 50974 transitions. [2021-06-05 03:40:32,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:32,875 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:32,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:32,903 INFO L225 Difference]: With dead ends: 11374 [2021-06-05 03:40:32,903 INFO L226 Difference]: Without dead ends: 10849 [2021-06-05 03:40:32,903 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 148.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:33,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10849 states. [2021-06-05 03:40:33,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10849 to 5161. [2021-06-05 03:40:33,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.753488372093023) internal successors, (24528), 5160 states have internal predecessors, (24528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:33,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24528 transitions. [2021-06-05 03:40:33,130 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24528 transitions. Word has length 29 [2021-06-05 03:40:33,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:33,130 INFO L482 AbstractCegarLoop]: Abstraction has 5161 states and 24528 transitions. [2021-06-05 03:40:33,130 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:33,130 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24528 transitions. [2021-06-05 03:40:33,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:33,139 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:33,139 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:33,139 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2021-06-05 03:40:33,139 INFO L430 AbstractCegarLoop]: === Iteration 200 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:33,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:33,139 INFO L82 PathProgramCache]: Analyzing trace with hash 1541870057, now seen corresponding path program 195 times [2021-06-05 03:40:33,140 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:33,140 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205847865] [2021-06-05 03:40:33,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:33,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:33,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:33,267 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:33,267 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205847865] [2021-06-05 03:40:33,267 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205847865] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:33,267 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:33,267 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:33,267 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649258452] [2021-06-05 03:40:33,267 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:33,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:33,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:33,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:33,268 INFO L87 Difference]: Start difference. First operand 5161 states and 24528 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:33,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:33,388 INFO L93 Difference]: Finished difference Result 11310 states and 50724 transitions. [2021-06-05 03:40:33,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:33,389 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:33,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:33,417 INFO L225 Difference]: With dead ends: 11310 [2021-06-05 03:40:33,417 INFO L226 Difference]: Without dead ends: 10895 [2021-06-05 03:40:33,417 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 152.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:33,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10895 states. [2021-06-05 03:40:33,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10895 to 5209. [2021-06-05 03:40:33,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5209 states, 5208 states have (on average 4.743471582181259) internal successors, (24704), 5208 states have internal predecessors, (24704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:33,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5209 states to 5209 states and 24704 transitions. [2021-06-05 03:40:33,646 INFO L78 Accepts]: Start accepts. Automaton has 5209 states and 24704 transitions. Word has length 29 [2021-06-05 03:40:33,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:33,646 INFO L482 AbstractCegarLoop]: Abstraction has 5209 states and 24704 transitions. [2021-06-05 03:40:33,646 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:33,646 INFO L276 IsEmpty]: Start isEmpty. Operand 5209 states and 24704 transitions. [2021-06-05 03:40:33,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:33,655 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:33,655 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:33,655 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2021-06-05 03:40:33,655 INFO L430 AbstractCegarLoop]: === Iteration 201 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:33,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:33,655 INFO L82 PathProgramCache]: Analyzing trace with hash -1723531863, now seen corresponding path program 196 times [2021-06-05 03:40:33,655 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:33,655 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385937389] [2021-06-05 03:40:33,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:33,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:33,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:33,783 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:33,784 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385937389] [2021-06-05 03:40:33,784 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385937389] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:33,784 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:33,784 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:33,784 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680739814] [2021-06-05 03:40:33,784 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:33,784 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:33,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:33,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:33,784 INFO L87 Difference]: Start difference. First operand 5209 states and 24704 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:33,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:33,907 INFO L93 Difference]: Finished difference Result 11370 states and 50940 transitions. [2021-06-05 03:40:33,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:33,907 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:33,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:33,934 INFO L225 Difference]: With dead ends: 11370 [2021-06-05 03:40:33,934 INFO L226 Difference]: Without dead ends: 10847 [2021-06-05 03:40:33,934 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 153.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:34,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10847 states. [2021-06-05 03:40:34,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10847 to 5161. [2021-06-05 03:40:34,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.748837209302326) internal successors, (24504), 5160 states have internal predecessors, (24504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:34,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24504 transitions. [2021-06-05 03:40:34,156 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24504 transitions. Word has length 29 [2021-06-05 03:40:34,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:34,156 INFO L482 AbstractCegarLoop]: Abstraction has 5161 states and 24504 transitions. [2021-06-05 03:40:34,156 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:34,156 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24504 transitions. [2021-06-05 03:40:34,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:34,165 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:34,165 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:34,165 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2021-06-05 03:40:34,165 INFO L430 AbstractCegarLoop]: === Iteration 202 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:34,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:34,165 INFO L82 PathProgramCache]: Analyzing trace with hash -1549605429, now seen corresponding path program 197 times [2021-06-05 03:40:34,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:34,165 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276726674] [2021-06-05 03:40:34,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:34,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:34,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:34,280 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:34,280 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276726674] [2021-06-05 03:40:34,280 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276726674] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:34,280 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:34,281 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:34,281 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644548443] [2021-06-05 03:40:34,281 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:34,281 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:34,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:34,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:34,281 INFO L87 Difference]: Start difference. First operand 5161 states and 24504 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:34,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:34,393 INFO L93 Difference]: Finished difference Result 11464 states and 51385 transitions. [2021-06-05 03:40:34,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:34,393 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:34,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:34,420 INFO L225 Difference]: With dead ends: 11464 [2021-06-05 03:40:34,420 INFO L226 Difference]: Without dead ends: 10987 [2021-06-05 03:40:34,421 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 139.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:34,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10987 states. [2021-06-05 03:40:34,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10987 to 5239. [2021-06-05 03:40:34,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5239 states, 5238 states have (on average 4.734058801069111) internal successors, (24797), 5238 states have internal predecessors, (24797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:34,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5239 states to 5239 states and 24797 transitions. [2021-06-05 03:40:34,649 INFO L78 Accepts]: Start accepts. Automaton has 5239 states and 24797 transitions. Word has length 29 [2021-06-05 03:40:34,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:34,649 INFO L482 AbstractCegarLoop]: Abstraction has 5239 states and 24797 transitions. [2021-06-05 03:40:34,649 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:34,649 INFO L276 IsEmpty]: Start isEmpty. Operand 5239 states and 24797 transitions. [2021-06-05 03:40:34,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:34,658 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:34,658 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:34,658 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2021-06-05 03:40:34,658 INFO L430 AbstractCegarLoop]: === Iteration 203 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:34,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:34,659 INFO L82 PathProgramCache]: Analyzing trace with hash 1353217321, now seen corresponding path program 198 times [2021-06-05 03:40:34,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:34,659 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604090655] [2021-06-05 03:40:34,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:34,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:34,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:34,774 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:34,774 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604090655] [2021-06-05 03:40:34,774 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604090655] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:34,774 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:34,775 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:34,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796632512] [2021-06-05 03:40:34,775 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:34,775 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:34,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:34,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:34,775 INFO L87 Difference]: Start difference. First operand 5239 states and 24797 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:34,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:34,898 INFO L93 Difference]: Finished difference Result 11462 states and 51302 transitions. [2021-06-05 03:40:34,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:34,898 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:34,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:34,925 INFO L225 Difference]: With dead ends: 11462 [2021-06-05 03:40:34,925 INFO L226 Difference]: Without dead ends: 10885 [2021-06-05 03:40:34,926 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 140.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:35,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10885 states. [2021-06-05 03:40:35,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10885 to 5137. [2021-06-05 03:40:35,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5137 states, 5136 states have (on average 4.753894080996885) internal successors, (24416), 5136 states have internal predecessors, (24416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:35,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5137 states to 5137 states and 24416 transitions. [2021-06-05 03:40:35,146 INFO L78 Accepts]: Start accepts. Automaton has 5137 states and 24416 transitions. Word has length 29 [2021-06-05 03:40:35,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:35,146 INFO L482 AbstractCegarLoop]: Abstraction has 5137 states and 24416 transitions. [2021-06-05 03:40:35,147 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:35,147 INFO L276 IsEmpty]: Start isEmpty. Operand 5137 states and 24416 transitions. [2021-06-05 03:40:35,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:35,155 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:35,155 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:35,155 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2021-06-05 03:40:35,155 INFO L430 AbstractCegarLoop]: === Iteration 204 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:35,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:35,155 INFO L82 PathProgramCache]: Analyzing trace with hash 130464233, now seen corresponding path program 199 times [2021-06-05 03:40:35,155 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:35,155 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745619880] [2021-06-05 03:40:35,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:35,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:35,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:35,286 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:35,286 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745619880] [2021-06-05 03:40:35,286 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745619880] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:35,286 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:35,286 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:35,286 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824794621] [2021-06-05 03:40:35,286 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:35,286 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:35,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:35,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:35,287 INFO L87 Difference]: Start difference. First operand 5137 states and 24416 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:35,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:35,419 INFO L93 Difference]: Finished difference Result 11306 states and 50722 transitions. [2021-06-05 03:40:35,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:35,420 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:35,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:35,447 INFO L225 Difference]: With dead ends: 11306 [2021-06-05 03:40:35,448 INFO L226 Difference]: Without dead ends: 10891 [2021-06-05 03:40:35,448 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 163.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:35,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10891 states. [2021-06-05 03:40:35,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10891 to 5209. [2021-06-05 03:40:35,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5209 states, 5208 states have (on average 4.745775729646698) internal successors, (24716), 5208 states have internal predecessors, (24716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:35,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5209 states to 5209 states and 24716 transitions. [2021-06-05 03:40:35,677 INFO L78 Accepts]: Start accepts. Automaton has 5209 states and 24716 transitions. Word has length 29 [2021-06-05 03:40:35,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:35,677 INFO L482 AbstractCegarLoop]: Abstraction has 5209 states and 24716 transitions. [2021-06-05 03:40:35,677 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:35,677 INFO L276 IsEmpty]: Start isEmpty. Operand 5209 states and 24716 transitions. [2021-06-05 03:40:35,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:35,686 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:35,686 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:35,686 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2021-06-05 03:40:35,686 INFO L430 AbstractCegarLoop]: === Iteration 205 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:35,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:35,687 INFO L82 PathProgramCache]: Analyzing trace with hash 847127179, now seen corresponding path program 200 times [2021-06-05 03:40:35,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:35,687 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923780662] [2021-06-05 03:40:35,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:35,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:35,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:35,811 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:35,811 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923780662] [2021-06-05 03:40:35,811 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923780662] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:35,811 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:35,811 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:35,811 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434655179] [2021-06-05 03:40:35,812 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:35,812 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:35,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:35,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:35,812 INFO L87 Difference]: Start difference. First operand 5209 states and 24716 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:35,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:35,937 INFO L93 Difference]: Finished difference Result 11368 states and 50943 transitions. [2021-06-05 03:40:35,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:35,939 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:35,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:35,968 INFO L225 Difference]: With dead ends: 11368 [2021-06-05 03:40:35,968 INFO L226 Difference]: Without dead ends: 10843 [2021-06-05 03:40:35,968 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 146.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:36,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10843 states. [2021-06-05 03:40:36,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10843 to 5161. [2021-06-05 03:40:36,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.751162790697674) internal successors, (24516), 5160 states have internal predecessors, (24516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:36,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24516 transitions. [2021-06-05 03:40:36,199 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24516 transitions. Word has length 29 [2021-06-05 03:40:36,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:36,199 INFO L482 AbstractCegarLoop]: Abstraction has 5161 states and 24516 transitions. [2021-06-05 03:40:36,199 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:36,199 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24516 transitions. [2021-06-05 03:40:36,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:36,208 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:36,208 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:36,208 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2021-06-05 03:40:36,208 INFO L430 AbstractCegarLoop]: === Iteration 206 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:36,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:36,208 INFO L82 PathProgramCache]: Analyzing trace with hash 530377065, now seen corresponding path program 201 times [2021-06-05 03:40:36,208 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:36,208 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801862807] [2021-06-05 03:40:36,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:36,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:36,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:36,334 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:36,334 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801862807] [2021-06-05 03:40:36,334 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801862807] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:36,334 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:36,334 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:36,334 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418660297] [2021-06-05 03:40:36,334 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:36,334 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:36,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:36,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:36,335 INFO L87 Difference]: Start difference. First operand 5161 states and 24516 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:36,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:36,451 INFO L93 Difference]: Finished difference Result 11300 states and 50681 transitions. [2021-06-05 03:40:36,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:36,452 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:36,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:36,480 INFO L225 Difference]: With dead ends: 11300 [2021-06-05 03:40:36,480 INFO L226 Difference]: Without dead ends: 10885 [2021-06-05 03:40:36,480 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 150.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:36,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10885 states. [2021-06-05 03:40:36,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10885 to 5209. [2021-06-05 03:40:36,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5209 states, 5208 states have (on average 4.7411674347158215) internal successors, (24692), 5208 states have internal predecessors, (24692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:36,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5209 states to 5209 states and 24692 transitions. [2021-06-05 03:40:36,706 INFO L78 Accepts]: Start accepts. Automaton has 5209 states and 24692 transitions. Word has length 29 [2021-06-05 03:40:36,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:36,706 INFO L482 AbstractCegarLoop]: Abstraction has 5209 states and 24692 transitions. [2021-06-05 03:40:36,706 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:36,706 INFO L276 IsEmpty]: Start isEmpty. Operand 5209 states and 24692 transitions. [2021-06-05 03:40:36,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:36,715 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:36,715 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:36,715 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205 [2021-06-05 03:40:36,715 INFO L430 AbstractCegarLoop]: === Iteration 207 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:36,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:36,716 INFO L82 PathProgramCache]: Analyzing trace with hash -325012183, now seen corresponding path program 202 times [2021-06-05 03:40:36,716 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:36,716 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022273187] [2021-06-05 03:40:36,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:36,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:36,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:36,819 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:36,819 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022273187] [2021-06-05 03:40:36,819 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022273187] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:36,819 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:36,819 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:36,819 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936590913] [2021-06-05 03:40:36,819 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:36,820 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:36,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:36,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:36,820 INFO L87 Difference]: Start difference. First operand 5209 states and 24692 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:36,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:36,945 INFO L93 Difference]: Finished difference Result 11356 states and 50885 transitions. [2021-06-05 03:40:36,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:36,946 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:36,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:36,973 INFO L225 Difference]: With dead ends: 11356 [2021-06-05 03:40:36,974 INFO L226 Difference]: Without dead ends: 10837 [2021-06-05 03:40:36,974 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 129.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:37,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10837 states. [2021-06-05 03:40:37,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10837 to 5161. [2021-06-05 03:40:37,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.746511627906977) internal successors, (24492), 5160 states have internal predecessors, (24492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:37,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24492 transitions. [2021-06-05 03:40:37,204 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24492 transitions. Word has length 29 [2021-06-05 03:40:37,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:37,204 INFO L482 AbstractCegarLoop]: Abstraction has 5161 states and 24492 transitions. [2021-06-05 03:40:37,204 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:37,204 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24492 transitions. [2021-06-05 03:40:37,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:37,213 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:37,213 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:37,213 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206 [2021-06-05 03:40:37,213 INFO L430 AbstractCegarLoop]: === Iteration 208 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:37,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:37,213 INFO L82 PathProgramCache]: Analyzing trace with hash -823284405, now seen corresponding path program 203 times [2021-06-05 03:40:37,213 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:37,213 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537374146] [2021-06-05 03:40:37,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:37,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:37,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:37,324 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:37,325 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537374146] [2021-06-05 03:40:37,325 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537374146] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:37,325 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:37,325 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:37,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482254596] [2021-06-05 03:40:37,325 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:37,325 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:37,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:37,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:37,325 INFO L87 Difference]: Start difference. First operand 5161 states and 24492 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:37,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:37,444 INFO L93 Difference]: Finished difference Result 11452 states and 51335 transitions. [2021-06-05 03:40:37,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:37,444 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:37,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:37,472 INFO L225 Difference]: With dead ends: 11452 [2021-06-05 03:40:37,472 INFO L226 Difference]: Without dead ends: 10975 [2021-06-05 03:40:37,472 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 133.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:37,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10975 states. [2021-06-05 03:40:37,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10975 to 5237. [2021-06-05 03:40:37,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5237 states, 5236 states have (on average 4.732620320855615) internal successors, (24780), 5236 states have internal predecessors, (24780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:37,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5237 states to 5237 states and 24780 transitions. [2021-06-05 03:40:37,699 INFO L78 Accepts]: Start accepts. Automaton has 5237 states and 24780 transitions. Word has length 29 [2021-06-05 03:40:37,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:37,699 INFO L482 AbstractCegarLoop]: Abstraction has 5237 states and 24780 transitions. [2021-06-05 03:40:37,699 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:37,699 INFO L276 IsEmpty]: Start isEmpty. Operand 5237 states and 24780 transitions. [2021-06-05 03:40:37,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:37,708 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:37,708 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:37,708 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2021-06-05 03:40:37,708 INFO L430 AbstractCegarLoop]: === Iteration 209 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:37,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:37,709 INFO L82 PathProgramCache]: Analyzing trace with hash -1564236503, now seen corresponding path program 204 times [2021-06-05 03:40:37,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:37,709 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338585320] [2021-06-05 03:40:37,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:37,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:37,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:37,837 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:37,837 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338585320] [2021-06-05 03:40:37,837 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338585320] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:37,837 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:37,838 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:37,838 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206887670] [2021-06-05 03:40:37,838 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:37,838 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:37,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:37,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:37,838 INFO L87 Difference]: Start difference. First operand 5237 states and 24780 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:37,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:37,965 INFO L93 Difference]: Finished difference Result 11446 states and 51242 transitions. [2021-06-05 03:40:37,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:37,965 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:37,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:37,993 INFO L225 Difference]: With dead ends: 11446 [2021-06-05 03:40:37,993 INFO L226 Difference]: Without dead ends: 10875 [2021-06-05 03:40:37,993 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 148.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:38,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10875 states. [2021-06-05 03:40:38,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10875 to 5137. [2021-06-05 03:40:38,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5137 states, 5136 states have (on average 4.751557632398754) internal successors, (24404), 5136 states have internal predecessors, (24404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:38,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5137 states to 5137 states and 24404 transitions. [2021-06-05 03:40:38,220 INFO L78 Accepts]: Start accepts. Automaton has 5137 states and 24404 transitions. Word has length 29 [2021-06-05 03:40:38,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:38,220 INFO L482 AbstractCegarLoop]: Abstraction has 5137 states and 24404 transitions. [2021-06-05 03:40:38,220 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:38,220 INFO L276 IsEmpty]: Start isEmpty. Operand 5137 states and 24404 transitions. [2021-06-05 03:40:38,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:38,229 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:38,229 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:38,229 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2021-06-05 03:40:38,229 INFO L430 AbstractCegarLoop]: === Iteration 210 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:38,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:38,229 INFO L82 PathProgramCache]: Analyzing trace with hash -1660463925, now seen corresponding path program 205 times [2021-06-05 03:40:38,229 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:38,229 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881327290] [2021-06-05 03:40:38,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:38,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:38,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:38,354 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:38,354 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881327290] [2021-06-05 03:40:38,354 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881327290] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:38,354 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:38,354 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:38,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159728994] [2021-06-05 03:40:38,354 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:38,354 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:38,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:38,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:38,355 INFO L87 Difference]: Start difference. First operand 5137 states and 24404 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:38,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:38,520 INFO L93 Difference]: Finished difference Result 11302 states and 50700 transitions. [2021-06-05 03:40:38,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:38,520 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:38,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:38,551 INFO L225 Difference]: With dead ends: 11302 [2021-06-05 03:40:38,551 INFO L226 Difference]: Without dead ends: 10887 [2021-06-05 03:40:38,551 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 149.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:38,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10887 states. [2021-06-05 03:40:38,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10887 to 5209. [2021-06-05 03:40:38,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5209 states, 5208 states have (on average 4.743471582181259) internal successors, (24704), 5208 states have internal predecessors, (24704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:38,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5209 states to 5209 states and 24704 transitions. [2021-06-05 03:40:38,771 INFO L78 Accepts]: Start accepts. Automaton has 5209 states and 24704 transitions. Word has length 29 [2021-06-05 03:40:38,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:38,771 INFO L482 AbstractCegarLoop]: Abstraction has 5209 states and 24704 transitions. [2021-06-05 03:40:38,771 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:38,771 INFO L276 IsEmpty]: Start isEmpty. Operand 5209 states and 24704 transitions. [2021-06-05 03:40:38,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:38,780 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:38,780 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:38,780 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2021-06-05 03:40:38,780 INFO L430 AbstractCegarLoop]: === Iteration 211 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:38,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:38,780 INFO L82 PathProgramCache]: Analyzing trace with hash -630898549, now seen corresponding path program 206 times [2021-06-05 03:40:38,780 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:38,780 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856992556] [2021-06-05 03:40:38,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:38,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:38,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:38,896 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:38,896 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856992556] [2021-06-05 03:40:38,896 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856992556] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:38,896 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:38,896 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:38,896 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505870607] [2021-06-05 03:40:38,896 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:38,896 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:38,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:38,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:38,897 INFO L87 Difference]: Start difference. First operand 5209 states and 24704 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:39,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:39,021 INFO L93 Difference]: Finished difference Result 11362 states and 50916 transitions. [2021-06-05 03:40:39,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:39,025 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:39,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:39,053 INFO L225 Difference]: With dead ends: 11362 [2021-06-05 03:40:39,053 INFO L226 Difference]: Without dead ends: 10839 [2021-06-05 03:40:39,053 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 140.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:39,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10839 states. [2021-06-05 03:40:39,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10839 to 5161. [2021-06-05 03:40:39,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.748837209302326) internal successors, (24504), 5160 states have internal predecessors, (24504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:39,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24504 transitions. [2021-06-05 03:40:39,276 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24504 transitions. Word has length 29 [2021-06-05 03:40:39,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:39,277 INFO L482 AbstractCegarLoop]: Abstraction has 5161 states and 24504 transitions. [2021-06-05 03:40:39,277 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:39,277 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24504 transitions. [2021-06-05 03:40:39,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:39,285 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:39,285 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:39,285 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210 [2021-06-05 03:40:39,285 INFO L430 AbstractCegarLoop]: === Iteration 212 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:39,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:39,286 INFO L82 PathProgramCache]: Analyzing trace with hash 611441833, now seen corresponding path program 207 times [2021-06-05 03:40:39,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:39,286 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967844370] [2021-06-05 03:40:39,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:39,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:39,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:39,390 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:39,390 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967844370] [2021-06-05 03:40:39,390 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967844370] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:39,391 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:39,391 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:39,391 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262901073] [2021-06-05 03:40:39,391 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:39,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:39,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:39,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:39,391 INFO L87 Difference]: Start difference. First operand 5161 states and 24504 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:39,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:39,512 INFO L93 Difference]: Finished difference Result 11298 states and 50664 transitions. [2021-06-05 03:40:39,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:39,512 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:39,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:39,539 INFO L225 Difference]: With dead ends: 11298 [2021-06-05 03:40:39,539 INFO L226 Difference]: Without dead ends: 10883 [2021-06-05 03:40:39,540 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 127.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:39,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10883 states. [2021-06-05 03:40:39,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10883 to 5209. [2021-06-05 03:40:39,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5209 states, 5208 states have (on average 4.738863287250384) internal successors, (24680), 5208 states have internal predecessors, (24680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:39,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5209 states to 5209 states and 24680 transitions. [2021-06-05 03:40:39,764 INFO L78 Accepts]: Start accepts. Automaton has 5209 states and 24680 transitions. Word has length 29 [2021-06-05 03:40:39,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:39,764 INFO L482 AbstractCegarLoop]: Abstraction has 5209 states and 24680 transitions. [2021-06-05 03:40:39,764 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:39,764 INFO L276 IsEmpty]: Start isEmpty. Operand 5209 states and 24680 transitions. [2021-06-05 03:40:39,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:39,773 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:39,773 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:39,773 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2021-06-05 03:40:39,773 INFO L430 AbstractCegarLoop]: === Iteration 213 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:39,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:39,773 INFO L82 PathProgramCache]: Analyzing trace with hash 1076105355, now seen corresponding path program 208 times [2021-06-05 03:40:39,773 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:39,773 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059292884] [2021-06-05 03:40:39,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:39,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:39,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:39,876 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:39,876 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059292884] [2021-06-05 03:40:39,876 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059292884] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:39,876 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:39,876 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:39,877 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179166252] [2021-06-05 03:40:39,877 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:39,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:39,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:39,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:39,877 INFO L87 Difference]: Start difference. First operand 5209 states and 24680 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:39,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:39,992 INFO L93 Difference]: Finished difference Result 11354 states and 50868 transitions. [2021-06-05 03:40:39,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:39,993 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:39,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:40,020 INFO L225 Difference]: With dead ends: 11354 [2021-06-05 03:40:40,020 INFO L226 Difference]: Without dead ends: 10835 [2021-06-05 03:40:40,020 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 127.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:40,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10835 states. [2021-06-05 03:40:40,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10835 to 5161. [2021-06-05 03:40:40,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.744186046511628) internal successors, (24480), 5160 states have internal predecessors, (24480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:40,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24480 transitions. [2021-06-05 03:40:40,242 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24480 transitions. Word has length 29 [2021-06-05 03:40:40,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:40,242 INFO L482 AbstractCegarLoop]: Abstraction has 5161 states and 24480 transitions. [2021-06-05 03:40:40,242 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:40,242 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24480 transitions. [2021-06-05 03:40:40,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:40,251 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:40,251 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:40,251 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2021-06-05 03:40:40,251 INFO L430 AbstractCegarLoop]: === Iteration 214 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:40,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:40,251 INFO L82 PathProgramCache]: Analyzing trace with hash 1973754955, now seen corresponding path program 209 times [2021-06-05 03:40:40,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:40,251 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932018435] [2021-06-05 03:40:40,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:40,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:40,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:40,354 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:40,354 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932018435] [2021-06-05 03:40:40,355 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932018435] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:40,355 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:40,355 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:40,355 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155398982] [2021-06-05 03:40:40,355 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:40,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:40,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:40,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:40,355 INFO L87 Difference]: Start difference. First operand 5161 states and 24480 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:40,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:40,466 INFO L93 Difference]: Finished difference Result 11446 states and 51308 transitions. [2021-06-05 03:40:40,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:40,467 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:40,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:40,494 INFO L225 Difference]: With dead ends: 11446 [2021-06-05 03:40:40,494 INFO L226 Difference]: Without dead ends: 10971 [2021-06-05 03:40:40,494 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:40,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10971 states. [2021-06-05 03:40:40,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10971 to 5237. [2021-06-05 03:40:40,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5237 states, 5236 states have (on average 4.730328495034377) internal successors, (24768), 5236 states have internal predecessors, (24768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:40,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5237 states to 5237 states and 24768 transitions. [2021-06-05 03:40:40,718 INFO L78 Accepts]: Start accepts. Automaton has 5237 states and 24768 transitions. Word has length 29 [2021-06-05 03:40:40,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:40,719 INFO L482 AbstractCegarLoop]: Abstraction has 5237 states and 24768 transitions. [2021-06-05 03:40:40,719 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:40,719 INFO L276 IsEmpty]: Start isEmpty. Operand 5237 states and 24768 transitions. [2021-06-05 03:40:40,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:40,727 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:40,727 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:40,727 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213 [2021-06-05 03:40:40,728 INFO L430 AbstractCegarLoop]: === Iteration 215 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:40,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:40,728 INFO L82 PathProgramCache]: Analyzing trace with hash -69582039, now seen corresponding path program 210 times [2021-06-05 03:40:40,728 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:40,728 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626751830] [2021-06-05 03:40:40,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:40,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:40,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:40,832 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:40,832 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626751830] [2021-06-05 03:40:40,832 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626751830] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:40,832 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:40,832 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:40,832 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396247713] [2021-06-05 03:40:40,833 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:40,833 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:40,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:40,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:40,833 INFO L87 Difference]: Start difference. First operand 5237 states and 24768 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:40,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:40,946 INFO L93 Difference]: Finished difference Result 11442 states and 51220 transitions. [2021-06-05 03:40:40,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:40,946 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:40,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:40,973 INFO L225 Difference]: With dead ends: 11442 [2021-06-05 03:40:40,973 INFO L226 Difference]: Without dead ends: 10871 [2021-06-05 03:40:40,973 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 127.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:41,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10871 states. [2021-06-05 03:40:41,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10871 to 5137. [2021-06-05 03:40:41,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5137 states, 5136 states have (on average 4.749221183800623) internal successors, (24392), 5136 states have internal predecessors, (24392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:41,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5137 states to 5137 states and 24392 transitions. [2021-06-05 03:40:41,194 INFO L78 Accepts]: Start accepts. Automaton has 5137 states and 24392 transitions. Word has length 29 [2021-06-05 03:40:41,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:41,194 INFO L482 AbstractCegarLoop]: Abstraction has 5137 states and 24392 transitions. [2021-06-05 03:40:41,194 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:41,194 INFO L276 IsEmpty]: Start isEmpty. Operand 5137 states and 24392 transitions. [2021-06-05 03:40:41,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:41,202 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:41,203 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:41,203 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2021-06-05 03:40:41,203 INFO L430 AbstractCegarLoop]: === Iteration 216 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:41,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:41,203 INFO L82 PathProgramCache]: Analyzing trace with hash -1468877843, now seen corresponding path program 211 times [2021-06-05 03:40:41,203 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:41,203 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964901012] [2021-06-05 03:40:41,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:41,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:41,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:41,307 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:41,307 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964901012] [2021-06-05 03:40:41,307 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964901012] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:41,308 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:41,308 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:41,308 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703997391] [2021-06-05 03:40:41,308 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:41,308 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:41,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:41,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:41,308 INFO L87 Difference]: Start difference. First operand 5137 states and 24392 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:41,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:41,427 INFO L93 Difference]: Finished difference Result 11590 states and 52006 transitions. [2021-06-05 03:40:41,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:41,427 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:41,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:41,456 INFO L225 Difference]: With dead ends: 11590 [2021-06-05 03:40:41,456 INFO L226 Difference]: Without dead ends: 11113 [2021-06-05 03:40:41,456 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 129.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:41,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11113 states. [2021-06-05 03:40:41,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11113 to 5253. [2021-06-05 03:40:41,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5253 states, 5252 states have (on average 4.738385376999238) internal successors, (24886), 5252 states have internal predecessors, (24886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:41,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5253 states to 5253 states and 24886 transitions. [2021-06-05 03:40:41,685 INFO L78 Accepts]: Start accepts. Automaton has 5253 states and 24886 transitions. Word has length 29 [2021-06-05 03:40:41,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:41,685 INFO L482 AbstractCegarLoop]: Abstraction has 5253 states and 24886 transitions. [2021-06-05 03:40:41,685 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:41,686 INFO L276 IsEmpty]: Start isEmpty. Operand 5253 states and 24886 transitions. [2021-06-05 03:40:41,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:41,694 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:41,694 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:41,695 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215 [2021-06-05 03:40:41,695 INFO L430 AbstractCegarLoop]: === Iteration 217 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:41,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:41,695 INFO L82 PathProgramCache]: Analyzing trace with hash 1433944907, now seen corresponding path program 212 times [2021-06-05 03:40:41,695 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:41,695 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676247222] [2021-06-05 03:40:41,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:41,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:41,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:41,799 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:41,799 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676247222] [2021-06-05 03:40:41,799 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676247222] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:41,799 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:41,799 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:41,799 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611234632] [2021-06-05 03:40:41,799 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:41,799 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:41,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:41,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:41,800 INFO L87 Difference]: Start difference. First operand 5253 states and 24886 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:41,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:41,916 INFO L93 Difference]: Finished difference Result 11588 states and 51923 transitions. [2021-06-05 03:40:41,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:41,916 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:41,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:41,944 INFO L225 Difference]: With dead ends: 11588 [2021-06-05 03:40:41,944 INFO L226 Difference]: Without dead ends: 11035 [2021-06-05 03:40:41,944 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 129.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:42,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11035 states. [2021-06-05 03:40:42,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11035 to 5175. [2021-06-05 03:40:42,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5175 states, 5174 states have (on average 4.745844607653653) internal successors, (24555), 5174 states have internal predecessors, (24555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:42,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5175 states to 5175 states and 24555 transitions. [2021-06-05 03:40:42,171 INFO L78 Accepts]: Start accepts. Automaton has 5175 states and 24555 transitions. Word has length 29 [2021-06-05 03:40:42,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:42,171 INFO L482 AbstractCegarLoop]: Abstraction has 5175 states and 24555 transitions. [2021-06-05 03:40:42,171 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:42,171 INFO L276 IsEmpty]: Start isEmpty. Operand 5175 states and 24555 transitions. [2021-06-05 03:40:42,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:42,180 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:42,180 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:42,180 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2021-06-05 03:40:42,180 INFO L430 AbstractCegarLoop]: === Iteration 218 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:42,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:42,180 INFO L82 PathProgramCache]: Analyzing trace with hash 1979292491, now seen corresponding path program 213 times [2021-06-05 03:40:42,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:42,180 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325119624] [2021-06-05 03:40:42,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:42,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:42,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:42,284 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:42,284 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325119624] [2021-06-05 03:40:42,284 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325119624] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:42,284 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:42,284 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:42,284 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077509425] [2021-06-05 03:40:42,284 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:42,285 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:42,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:42,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:42,285 INFO L87 Difference]: Start difference. First operand 5175 states and 24555 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:42,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:42,400 INFO L93 Difference]: Finished difference Result 11584 states and 51949 transitions. [2021-06-05 03:40:42,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:42,400 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:42,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:42,428 INFO L225 Difference]: With dead ends: 11584 [2021-06-05 03:40:42,428 INFO L226 Difference]: Without dead ends: 11107 [2021-06-05 03:40:42,428 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 129.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:42,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11107 states. [2021-06-05 03:40:42,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11107 to 5251. [2021-06-05 03:40:42,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5251 states, 5250 states have (on average 4.732) internal successors, (24843), 5250 states have internal predecessors, (24843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:42,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5251 states to 5251 states and 24843 transitions. [2021-06-05 03:40:42,660 INFO L78 Accepts]: Start accepts. Automaton has 5251 states and 24843 transitions. Word has length 29 [2021-06-05 03:40:42,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:42,660 INFO L482 AbstractCegarLoop]: Abstraction has 5251 states and 24843 transitions. [2021-06-05 03:40:42,660 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:42,660 INFO L276 IsEmpty]: Start isEmpty. Operand 5251 states and 24843 transitions. [2021-06-05 03:40:42,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:42,669 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:42,669 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:42,669 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2021-06-05 03:40:42,669 INFO L430 AbstractCegarLoop]: === Iteration 219 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:42,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:42,669 INFO L82 PathProgramCache]: Analyzing trace with hash -472015925, now seen corresponding path program 214 times [2021-06-05 03:40:42,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:42,669 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265253711] [2021-06-05 03:40:42,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:42,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:42,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:42,774 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:42,774 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265253711] [2021-06-05 03:40:42,774 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265253711] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:42,774 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:42,774 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:42,774 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623283561] [2021-06-05 03:40:42,774 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:42,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:42,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:42,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:42,774 INFO L87 Difference]: Start difference. First operand 5251 states and 24843 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:42,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:42,897 INFO L93 Difference]: Finished difference Result 11578 states and 51856 transitions. [2021-06-05 03:40:42,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:42,897 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:42,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:42,925 INFO L225 Difference]: With dead ends: 11578 [2021-06-05 03:40:42,925 INFO L226 Difference]: Without dead ends: 11031 [2021-06-05 03:40:42,925 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 129.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:43,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11031 states. [2021-06-05 03:40:43,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11031 to 5175. [2021-06-05 03:40:43,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5175 states, 5174 states have (on average 4.738500193274063) internal successors, (24517), 5174 states have internal predecessors, (24517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:43,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5175 states to 5175 states and 24517 transitions. [2021-06-05 03:40:43,150 INFO L78 Accepts]: Start accepts. Automaton has 5175 states and 24517 transitions. Word has length 29 [2021-06-05 03:40:43,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:43,150 INFO L482 AbstractCegarLoop]: Abstraction has 5175 states and 24517 transitions. [2021-06-05 03:40:43,150 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:43,150 INFO L276 IsEmpty]: Start isEmpty. Operand 5175 states and 24517 transitions. [2021-06-05 03:40:43,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:43,159 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:43,159 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:43,159 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2021-06-05 03:40:43,159 INFO L430 AbstractCegarLoop]: === Iteration 220 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:43,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:43,159 INFO L82 PathProgramCache]: Analyzing trace with hash -1951417431, now seen corresponding path program 215 times [2021-06-05 03:40:43,159 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:43,159 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143336130] [2021-06-05 03:40:43,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:43,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:43,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:43,267 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:43,267 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143336130] [2021-06-05 03:40:43,267 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143336130] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:43,267 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:43,267 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:43,268 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102490614] [2021-06-05 03:40:43,268 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:43,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:43,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:43,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:43,268 INFO L87 Difference]: Start difference. First operand 5175 states and 24517 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:43,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:43,384 INFO L93 Difference]: Finished difference Result 11580 states and 51901 transitions. [2021-06-05 03:40:43,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:43,385 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:43,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:43,413 INFO L225 Difference]: With dead ends: 11580 [2021-06-05 03:40:43,413 INFO L226 Difference]: Without dead ends: 11105 [2021-06-05 03:40:43,413 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 130.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:43,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11105 states. [2021-06-05 03:40:43,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11105 to 5251. [2021-06-05 03:40:43,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5251 states, 5250 states have (on average 4.7247619047619045) internal successors, (24805), 5250 states have internal predecessors, (24805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:43,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5251 states to 5251 states and 24805 transitions. [2021-06-05 03:40:43,639 INFO L78 Accepts]: Start accepts. Automaton has 5251 states and 24805 transitions. Word has length 29 [2021-06-05 03:40:43,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:43,639 INFO L482 AbstractCegarLoop]: Abstraction has 5251 states and 24805 transitions. [2021-06-05 03:40:43,640 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:43,640 INFO L276 IsEmpty]: Start isEmpty. Operand 5251 states and 24805 transitions. [2021-06-05 03:40:43,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:43,649 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:43,649 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:43,649 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219 [2021-06-05 03:40:43,649 INFO L430 AbstractCegarLoop]: === Iteration 221 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:43,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:43,649 INFO L82 PathProgramCache]: Analyzing trace with hash -870354805, now seen corresponding path program 216 times [2021-06-05 03:40:43,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:43,649 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29898900] [2021-06-05 03:40:43,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:43,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:43,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:43,754 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:43,754 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29898900] [2021-06-05 03:40:43,754 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29898900] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:43,754 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:43,754 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:43,754 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862855117] [2021-06-05 03:40:43,754 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:43,754 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:43,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:43,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:43,755 INFO L87 Difference]: Start difference. First operand 5251 states and 24805 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:43,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:43,875 INFO L93 Difference]: Finished difference Result 11576 states and 51813 transitions. [2021-06-05 03:40:43,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:43,876 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:43,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:43,903 INFO L225 Difference]: With dead ends: 11576 [2021-06-05 03:40:43,903 INFO L226 Difference]: Without dead ends: 10979 [2021-06-05 03:40:43,904 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 129.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:44,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10979 states. [2021-06-05 03:40:44,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10979 to 5125. [2021-06-05 03:40:44,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5125 states, 5124 states have (on average 4.752927400468384) internal successors, (24354), 5124 states have internal predecessors, (24354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:44,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5125 states to 5125 states and 24354 transitions. [2021-06-05 03:40:44,130 INFO L78 Accepts]: Start accepts. Automaton has 5125 states and 24354 transitions. Word has length 29 [2021-06-05 03:40:44,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:44,130 INFO L482 AbstractCegarLoop]: Abstraction has 5125 states and 24354 transitions. [2021-06-05 03:40:44,130 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:44,130 INFO L276 IsEmpty]: Start isEmpty. Operand 5125 states and 24354 transitions. [2021-06-05 03:40:44,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:44,138 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:44,138 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:44,138 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2021-06-05 03:40:44,138 INFO L430 AbstractCegarLoop]: === Iteration 222 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:44,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:44,139 INFO L82 PathProgramCache]: Analyzing trace with hash 1103340525, now seen corresponding path program 217 times [2021-06-05 03:40:44,139 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:44,139 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647342341] [2021-06-05 03:40:44,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:44,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:44,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:44,246 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:44,246 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647342341] [2021-06-05 03:40:44,246 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647342341] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:44,246 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:44,246 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:44,247 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370563182] [2021-06-05 03:40:44,247 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:44,247 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:44,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:44,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:44,247 INFO L87 Difference]: Start difference. First operand 5125 states and 24354 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:44,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:44,356 INFO L93 Difference]: Finished difference Result 12530 states and 56033 transitions. [2021-06-05 03:40:44,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:44,356 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:44,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:44,388 INFO L225 Difference]: With dead ends: 12530 [2021-06-05 03:40:44,388 INFO L226 Difference]: Without dead ends: 11988 [2021-06-05 03:40:44,388 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 114.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:44,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11988 states. [2021-06-05 03:40:44,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11988 to 5406. [2021-06-05 03:40:44,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5406 states, 5405 states have (on average 4.719333950046254) internal successors, (25508), 5405 states have internal predecessors, (25508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:44,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5406 states to 5406 states and 25508 transitions. [2021-06-05 03:40:44,629 INFO L78 Accepts]: Start accepts. Automaton has 5406 states and 25508 transitions. Word has length 29 [2021-06-05 03:40:44,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:44,629 INFO L482 AbstractCegarLoop]: Abstraction has 5406 states and 25508 transitions. [2021-06-05 03:40:44,629 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:44,629 INFO L276 IsEmpty]: Start isEmpty. Operand 5406 states and 25508 transitions. [2021-06-05 03:40:44,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:44,638 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:44,638 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:44,638 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2021-06-05 03:40:44,638 INFO L430 AbstractCegarLoop]: === Iteration 223 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:44,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:44,638 INFO L82 PathProgramCache]: Analyzing trace with hash -939996469, now seen corresponding path program 218 times [2021-06-05 03:40:44,639 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:44,639 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96089998] [2021-06-05 03:40:44,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:44,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:44,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:44,745 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:44,745 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96089998] [2021-06-05 03:40:44,746 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96089998] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:44,746 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:44,746 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:44,746 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480861076] [2021-06-05 03:40:44,746 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:44,746 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:44,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:44,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:44,746 INFO L87 Difference]: Start difference. First operand 5406 states and 25508 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:44,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:44,882 INFO L93 Difference]: Finished difference Result 12465 states and 55664 transitions. [2021-06-05 03:40:44,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:44,882 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:44,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:44,912 INFO L225 Difference]: With dead ends: 12465 [2021-06-05 03:40:44,912 INFO L226 Difference]: Without dead ends: 11845 [2021-06-05 03:40:44,912 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 131.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:45,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11845 states. [2021-06-05 03:40:45,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11845 to 5263. [2021-06-05 03:40:45,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5263 states, 5262 states have (on average 4.735461801596351) internal successors, (24918), 5262 states have internal predecessors, (24918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:45,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5263 states to 5263 states and 24918 transitions. [2021-06-05 03:40:45,151 INFO L78 Accepts]: Start accepts. Automaton has 5263 states and 24918 transitions. Word has length 29 [2021-06-05 03:40:45,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:45,151 INFO L482 AbstractCegarLoop]: Abstraction has 5263 states and 24918 transitions. [2021-06-05 03:40:45,151 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:45,151 INFO L276 IsEmpty]: Start isEmpty. Operand 5263 states and 24918 transitions. [2021-06-05 03:40:45,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:45,160 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:45,160 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:45,160 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222 [2021-06-05 03:40:45,160 INFO L430 AbstractCegarLoop]: === Iteration 224 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:45,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:45,160 INFO L82 PathProgramCache]: Analyzing trace with hash -1012739125, now seen corresponding path program 219 times [2021-06-05 03:40:45,160 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:45,160 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888831094] [2021-06-05 03:40:45,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:45,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:45,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:45,286 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:45,286 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888831094] [2021-06-05 03:40:45,286 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888831094] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:45,286 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:45,286 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:45,286 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096425455] [2021-06-05 03:40:45,286 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:45,286 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:45,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:45,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:45,287 INFO L87 Difference]: Start difference. First operand 5263 states and 24918 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:45,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:45,391 INFO L93 Difference]: Finished difference Result 12495 states and 55842 transitions. [2021-06-05 03:40:45,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:45,392 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:45,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:45,421 INFO L225 Difference]: With dead ends: 12495 [2021-06-05 03:40:45,421 INFO L226 Difference]: Without dead ends: 11953 [2021-06-05 03:40:45,421 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:45,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11953 states. [2021-06-05 03:40:45,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11953 to 5373. [2021-06-05 03:40:45,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5373 states, 5372 states have (on average 4.713886820551005) internal successors, (25323), 5372 states have internal predecessors, (25323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:45,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5373 states to 5373 states and 25323 transitions. [2021-06-05 03:40:45,655 INFO L78 Accepts]: Start accepts. Automaton has 5373 states and 25323 transitions. Word has length 29 [2021-06-05 03:40:45,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:45,655 INFO L482 AbstractCegarLoop]: Abstraction has 5373 states and 25323 transitions. [2021-06-05 03:40:45,655 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:45,655 INFO L276 IsEmpty]: Start isEmpty. Operand 5373 states and 25323 transitions. [2021-06-05 03:40:45,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:45,664 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:45,664 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:45,664 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable223 [2021-06-05 03:40:45,665 INFO L430 AbstractCegarLoop]: === Iteration 225 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:45,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:45,665 INFO L82 PathProgramCache]: Analyzing trace with hash -456950837, now seen corresponding path program 220 times [2021-06-05 03:40:45,665 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:45,665 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424256307] [2021-06-05 03:40:45,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:45,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:45,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:45,771 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:45,771 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424256307] [2021-06-05 03:40:45,771 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424256307] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:45,771 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:45,772 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:45,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810763917] [2021-06-05 03:40:45,772 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:45,772 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:45,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:45,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:45,772 INFO L87 Difference]: Start difference. First operand 5373 states and 25323 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:45,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:45,903 INFO L93 Difference]: Finished difference Result 12428 states and 55469 transitions. [2021-06-05 03:40:45,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:45,903 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:45,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:45,934 INFO L225 Difference]: With dead ends: 12428 [2021-06-05 03:40:45,934 INFO L226 Difference]: Without dead ends: 11843 [2021-06-05 03:40:45,934 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 131.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:46,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11843 states. [2021-06-05 03:40:46,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11843 to 5263. [2021-06-05 03:40:46,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5263 states, 5262 states have (on average 4.72500950209046) internal successors, (24863), 5262 states have internal predecessors, (24863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:46,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5263 states to 5263 states and 24863 transitions. [2021-06-05 03:40:46,170 INFO L78 Accepts]: Start accepts. Automaton has 5263 states and 24863 transitions. Word has length 29 [2021-06-05 03:40:46,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:46,170 INFO L482 AbstractCegarLoop]: Abstraction has 5263 states and 24863 transitions. [2021-06-05 03:40:46,170 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:46,170 INFO L276 IsEmpty]: Start isEmpty. Operand 5263 states and 24863 transitions. [2021-06-05 03:40:46,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:46,179 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:46,179 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:46,179 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable224 [2021-06-05 03:40:46,179 INFO L430 AbstractCegarLoop]: === Iteration 226 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:46,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:46,180 INFO L82 PathProgramCache]: Analyzing trace with hash -30391511, now seen corresponding path program 221 times [2021-06-05 03:40:46,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:46,180 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977897119] [2021-06-05 03:40:46,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:46,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:46,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:46,289 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:46,289 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977897119] [2021-06-05 03:40:46,289 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977897119] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:46,289 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:46,289 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:46,289 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780848613] [2021-06-05 03:40:46,289 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:46,289 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:46,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:46,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:46,290 INFO L87 Difference]: Start difference. First operand 5263 states and 24863 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:46,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:46,415 INFO L93 Difference]: Finished difference Result 12333 states and 55127 transitions. [2021-06-05 03:40:46,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:46,415 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:46,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:46,445 INFO L225 Difference]: With dead ends: 12333 [2021-06-05 03:40:46,445 INFO L226 Difference]: Without dead ends: 11856 [2021-06-05 03:40:46,445 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 134.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:46,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11856 states. [2021-06-05 03:40:46,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11856 to 5341. [2021-06-05 03:40:46,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5341 states, 5340 states have (on average 4.710861423220973) internal successors, (25156), 5340 states have internal predecessors, (25156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:46,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5341 states to 5341 states and 25156 transitions. [2021-06-05 03:40:46,683 INFO L78 Accepts]: Start accepts. Automaton has 5341 states and 25156 transitions. Word has length 29 [2021-06-05 03:40:46,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:46,683 INFO L482 AbstractCegarLoop]: Abstraction has 5341 states and 25156 transitions. [2021-06-05 03:40:46,683 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:46,683 INFO L276 IsEmpty]: Start isEmpty. Operand 5341 states and 25156 transitions. [2021-06-05 03:40:46,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:46,692 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:46,692 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:46,692 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225 [2021-06-05 03:40:46,692 INFO L430 AbstractCegarLoop]: === Iteration 227 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:46,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:46,693 INFO L82 PathProgramCache]: Analyzing trace with hash -237199477, now seen corresponding path program 222 times [2021-06-05 03:40:46,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:46,693 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476201597] [2021-06-05 03:40:46,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:46,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:46,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:46,801 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:46,801 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476201597] [2021-06-05 03:40:46,801 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476201597] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:46,801 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:46,801 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:46,801 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727655676] [2021-06-05 03:40:46,801 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:46,801 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:46,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:46,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:46,801 INFO L87 Difference]: Start difference. First operand 5341 states and 25156 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:46,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:46,925 INFO L93 Difference]: Finished difference Result 12331 states and 55044 transitions. [2021-06-05 03:40:46,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:46,926 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:46,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:46,956 INFO L225 Difference]: With dead ends: 12331 [2021-06-05 03:40:46,956 INFO L226 Difference]: Without dead ends: 11691 [2021-06-05 03:40:46,956 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 132.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:47,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11691 states. [2021-06-05 03:40:47,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11691 to 5176. [2021-06-05 03:40:47,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5176 states, 5175 states have (on average 4.743768115942029) internal successors, (24549), 5175 states have internal predecessors, (24549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:47,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5176 states to 5176 states and 24549 transitions. [2021-06-05 03:40:47,189 INFO L78 Accepts]: Start accepts. Automaton has 5176 states and 24549 transitions. Word has length 29 [2021-06-05 03:40:47,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:47,190 INFO L482 AbstractCegarLoop]: Abstraction has 5176 states and 24549 transitions. [2021-06-05 03:40:47,190 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:47,190 INFO L276 IsEmpty]: Start isEmpty. Operand 5176 states and 24549 transitions. [2021-06-05 03:40:47,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:47,198 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:47,199 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:47,199 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226 [2021-06-05 03:40:47,199 INFO L430 AbstractCegarLoop]: === Iteration 228 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:47,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:47,199 INFO L82 PathProgramCache]: Analyzing trace with hash -919721013, now seen corresponding path program 223 times [2021-06-05 03:40:47,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:47,199 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563740985] [2021-06-05 03:40:47,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:47,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:47,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:47,309 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:47,309 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563740985] [2021-06-05 03:40:47,309 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563740985] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:47,309 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:47,309 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:47,309 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126989630] [2021-06-05 03:40:47,309 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:47,309 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:47,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:47,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:47,309 INFO L87 Difference]: Start difference. First operand 5176 states and 24549 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:47,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:47,426 INFO L93 Difference]: Finished difference Result 12505 states and 55912 transitions. [2021-06-05 03:40:47,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:47,427 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:47,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:47,456 INFO L225 Difference]: With dead ends: 12505 [2021-06-05 03:40:47,457 INFO L226 Difference]: Without dead ends: 11963 [2021-06-05 03:40:47,457 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 116.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:47,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11963 states. [2021-06-05 03:40:47,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11963 to 5389. [2021-06-05 03:40:47,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5389 states, 5388 states have (on average 4.716592427616926) internal successors, (25413), 5388 states have internal predecessors, (25413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:47,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5389 states to 5389 states and 25413 transitions. [2021-06-05 03:40:47,777 INFO L78 Accepts]: Start accepts. Automaton has 5389 states and 25413 transitions. Word has length 29 [2021-06-05 03:40:47,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:47,777 INFO L482 AbstractCegarLoop]: Abstraction has 5389 states and 25413 transitions. [2021-06-05 03:40:47,777 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:47,777 INFO L276 IsEmpty]: Start isEmpty. Operand 5389 states and 25413 transitions. [2021-06-05 03:40:47,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:47,786 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:47,786 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:47,786 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227 [2021-06-05 03:40:47,786 INFO L430 AbstractCegarLoop]: === Iteration 229 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:47,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:47,787 INFO L82 PathProgramCache]: Analyzing trace with hash 1331909289, now seen corresponding path program 224 times [2021-06-05 03:40:47,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:47,787 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992607881] [2021-06-05 03:40:47,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:47,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:47,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:47,898 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:47,898 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992607881] [2021-06-05 03:40:47,898 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992607881] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:47,898 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:47,898 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:47,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967450390] [2021-06-05 03:40:47,898 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:47,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:47,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:47,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:47,899 INFO L87 Difference]: Start difference. First operand 5389 states and 25413 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:48,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:48,017 INFO L93 Difference]: Finished difference Result 12440 states and 55543 transitions. [2021-06-05 03:40:48,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:48,018 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:48,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:48,047 INFO L225 Difference]: With dead ends: 12440 [2021-06-05 03:40:48,047 INFO L226 Difference]: Without dead ends: 11820 [2021-06-05 03:40:48,047 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 132.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:48,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11820 states. [2021-06-05 03:40:48,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11820 to 5246. [2021-06-05 03:40:48,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5246 states, 5245 states have (on average 4.732888465204957) internal successors, (24824), 5245 states have internal predecessors, (24824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:48,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5246 states to 5246 states and 24824 transitions. [2021-06-05 03:40:48,281 INFO L78 Accepts]: Start accepts. Automaton has 5246 states and 24824 transitions. Word has length 29 [2021-06-05 03:40:48,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:48,281 INFO L482 AbstractCegarLoop]: Abstraction has 5246 states and 24824 transitions. [2021-06-05 03:40:48,281 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:48,281 INFO L276 IsEmpty]: Start isEmpty. Operand 5246 states and 24824 transitions. [2021-06-05 03:40:48,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:48,290 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:48,290 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:48,290 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable228 [2021-06-05 03:40:48,291 INFO L430 AbstractCegarLoop]: === Iteration 230 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:48,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:48,291 INFO L82 PathProgramCache]: Analyzing trace with hash 1309936715, now seen corresponding path program 225 times [2021-06-05 03:40:48,291 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:48,291 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972001080] [2021-06-05 03:40:48,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:48,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:48,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:48,415 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:48,415 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972001080] [2021-06-05 03:40:48,415 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972001080] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:48,415 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:48,416 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:48,416 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788378754] [2021-06-05 03:40:48,416 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:48,416 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:48,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:48,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:48,416 INFO L87 Difference]: Start difference. First operand 5246 states and 24824 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:48,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:48,523 INFO L93 Difference]: Finished difference Result 12464 states and 55703 transitions. [2021-06-05 03:40:48,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:48,523 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:48,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:48,552 INFO L225 Difference]: With dead ends: 12464 [2021-06-05 03:40:48,553 INFO L226 Difference]: Without dead ends: 11922 [2021-06-05 03:40:48,553 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 134.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:48,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11922 states. [2021-06-05 03:40:48,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11922 to 5354. [2021-06-05 03:40:48,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5354 states, 5353 states have (on average 4.712124042592938) internal successors, (25224), 5353 states have internal predecessors, (25224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:48,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5354 states to 5354 states and 25224 transitions. [2021-06-05 03:40:48,787 INFO L78 Accepts]: Start accepts. Automaton has 5354 states and 25224 transitions. Word has length 29 [2021-06-05 03:40:48,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:48,787 INFO L482 AbstractCegarLoop]: Abstraction has 5354 states and 25224 transitions. [2021-06-05 03:40:48,787 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:48,787 INFO L276 IsEmpty]: Start isEmpty. Operand 5354 states and 25224 transitions. [2021-06-05 03:40:48,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:48,796 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:48,796 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:48,796 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229 [2021-06-05 03:40:48,796 INFO L430 AbstractCegarLoop]: === Iteration 231 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:48,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:48,796 INFO L82 PathProgramCache]: Analyzing trace with hash 1229046859, now seen corresponding path program 226 times [2021-06-05 03:40:48,796 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:48,796 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161734811] [2021-06-05 03:40:48,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:48,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:48,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:48,912 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:48,912 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161734811] [2021-06-05 03:40:48,912 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161734811] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:48,912 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:48,912 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:48,912 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913499448] [2021-06-05 03:40:48,913 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:48,913 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:48,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:48,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:48,913 INFO L87 Difference]: Start difference. First operand 5354 states and 25224 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:49,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:49,033 INFO L93 Difference]: Finished difference Result 12393 states and 55320 transitions. [2021-06-05 03:40:49,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:49,034 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:49,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:49,063 INFO L225 Difference]: With dead ends: 12393 [2021-06-05 03:40:49,063 INFO L226 Difference]: Without dead ends: 11814 [2021-06-05 03:40:49,063 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 140.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:49,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11814 states. [2021-06-05 03:40:49,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11814 to 5246. [2021-06-05 03:40:49,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5246 states, 5245 states have (on average 4.7225929456625355) internal successors, (24770), 5245 states have internal predecessors, (24770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:49,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5246 states to 5246 states and 24770 transitions. [2021-06-05 03:40:49,298 INFO L78 Accepts]: Start accepts. Automaton has 5246 states and 24770 transitions. Word has length 29 [2021-06-05 03:40:49,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:49,298 INFO L482 AbstractCegarLoop]: Abstraction has 5246 states and 24770 transitions. [2021-06-05 03:40:49,299 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:49,299 INFO L276 IsEmpty]: Start isEmpty. Operand 5246 states and 24770 transitions. [2021-06-05 03:40:49,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:49,307 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:49,307 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:49,307 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable230 [2021-06-05 03:40:49,307 INFO L430 AbstractCegarLoop]: === Iteration 232 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:49,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:49,308 INFO L82 PathProgramCache]: Analyzing trace with hash -2002682967, now seen corresponding path program 227 times [2021-06-05 03:40:49,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:49,308 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408057983] [2021-06-05 03:40:49,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:49,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:49,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:49,412 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:49,412 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408057983] [2021-06-05 03:40:49,412 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408057983] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:49,412 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:49,412 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:49,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985092907] [2021-06-05 03:40:49,412 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:49,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:49,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:49,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:49,413 INFO L87 Difference]: Start difference. First operand 5246 states and 24770 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:49,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:49,529 INFO L93 Difference]: Finished difference Result 12302 states and 54989 transitions. [2021-06-05 03:40:49,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:49,530 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:49,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:49,559 INFO L225 Difference]: With dead ends: 12302 [2021-06-05 03:40:49,559 INFO L226 Difference]: Without dead ends: 11825 [2021-06-05 03:40:49,559 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:49,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11825 states. [2021-06-05 03:40:49,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11825 to 5322. [2021-06-05 03:40:49,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5322 states, 5321 states have (on average 4.7092651757188495) internal successors, (25058), 5321 states have internal predecessors, (25058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:49,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5322 states to 5322 states and 25058 transitions. [2021-06-05 03:40:49,790 INFO L78 Accepts]: Start accepts. Automaton has 5322 states and 25058 transitions. Word has length 29 [2021-06-05 03:40:49,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:49,790 INFO L482 AbstractCegarLoop]: Abstraction has 5322 states and 25058 transitions. [2021-06-05 03:40:49,790 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:49,790 INFO L276 IsEmpty]: Start isEmpty. Operand 5322 states and 25058 transitions. [2021-06-05 03:40:49,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:49,799 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:49,799 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:49,799 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231 [2021-06-05 03:40:49,799 INFO L430 AbstractCegarLoop]: === Iteration 233 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:49,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:49,799 INFO L82 PathProgramCache]: Analyzing trace with hash 797605771, now seen corresponding path program 228 times [2021-06-05 03:40:49,800 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:49,800 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180886981] [2021-06-05 03:40:49,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:49,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:49,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:49,919 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:49,919 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180886981] [2021-06-05 03:40:49,920 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180886981] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:49,920 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:49,920 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:49,920 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242170417] [2021-06-05 03:40:49,920 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:49,920 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:49,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:49,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:49,920 INFO L87 Difference]: Start difference. First operand 5322 states and 25058 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:50,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:50,082 INFO L93 Difference]: Finished difference Result 12296 states and 54896 transitions. [2021-06-05 03:40:50,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:50,082 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:50,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:50,111 INFO L225 Difference]: With dead ends: 12296 [2021-06-05 03:40:50,111 INFO L226 Difference]: Without dead ends: 11679 [2021-06-05 03:40:50,112 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 148.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:50,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11679 states. [2021-06-05 03:40:50,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11679 to 5176. [2021-06-05 03:40:50,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5176 states, 5175 states have (on average 4.737004830917875) internal successors, (24514), 5175 states have internal predecessors, (24514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:50,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5176 states to 5176 states and 24514 transitions. [2021-06-05 03:40:50,342 INFO L78 Accepts]: Start accepts. Automaton has 5176 states and 24514 transitions. Word has length 29 [2021-06-05 03:40:50,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:50,343 INFO L482 AbstractCegarLoop]: Abstraction has 5176 states and 24514 transitions. [2021-06-05 03:40:50,343 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:50,343 INFO L276 IsEmpty]: Start isEmpty. Operand 5176 states and 24514 transitions. [2021-06-05 03:40:50,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:50,351 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:50,351 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:50,351 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable232 [2021-06-05 03:40:50,351 INFO L430 AbstractCegarLoop]: === Iteration 234 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:50,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:50,352 INFO L82 PathProgramCache]: Analyzing trace with hash 1239264425, now seen corresponding path program 229 times [2021-06-05 03:40:50,352 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:50,352 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234372343] [2021-06-05 03:40:50,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:50,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:50,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:50,458 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:50,458 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234372343] [2021-06-05 03:40:50,458 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234372343] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:50,458 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:50,458 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:50,458 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576712555] [2021-06-05 03:40:50,458 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:50,458 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:50,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:50,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:50,458 INFO L87 Difference]: Start difference. First operand 5176 states and 24514 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:50,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:50,566 INFO L93 Difference]: Finished difference Result 12419 states and 55573 transitions. [2021-06-05 03:40:50,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:50,566 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:50,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:50,596 INFO L225 Difference]: With dead ends: 12419 [2021-06-05 03:40:50,596 INFO L226 Difference]: Without dead ends: 11877 [2021-06-05 03:40:50,596 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 113.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:50,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11877 states. [2021-06-05 03:40:50,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11877 to 5340. [2021-06-05 03:40:50,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5340 states, 5339 states have (on average 4.719985015920584) internal successors, (25200), 5339 states have internal predecessors, (25200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:50,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5340 states to 5340 states and 25200 transitions. [2021-06-05 03:40:50,830 INFO L78 Accepts]: Start accepts. Automaton has 5340 states and 25200 transitions. Word has length 29 [2021-06-05 03:40:50,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:50,830 INFO L482 AbstractCegarLoop]: Abstraction has 5340 states and 25200 transitions. [2021-06-05 03:40:50,830 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:50,830 INFO L276 IsEmpty]: Start isEmpty. Operand 5340 states and 25200 transitions. [2021-06-05 03:40:50,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:50,839 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:50,839 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:50,839 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable233 [2021-06-05 03:40:50,839 INFO L430 AbstractCegarLoop]: === Iteration 235 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:50,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:50,839 INFO L82 PathProgramCache]: Analyzing trace with hash 1795052713, now seen corresponding path program 230 times [2021-06-05 03:40:50,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:50,839 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855009873] [2021-06-05 03:40:50,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:50,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:50,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:50,944 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:50,944 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855009873] [2021-06-05 03:40:50,944 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855009873] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:50,944 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:50,944 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:50,944 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345507101] [2021-06-05 03:40:50,944 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:50,944 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:50,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:50,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:50,945 INFO L87 Difference]: Start difference. First operand 5340 states and 25200 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:51,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:51,080 INFO L93 Difference]: Finished difference Result 12352 states and 55200 transitions. [2021-06-05 03:40:51,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:51,081 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:51,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:51,110 INFO L225 Difference]: With dead ends: 12352 [2021-06-05 03:40:51,110 INFO L226 Difference]: Without dead ends: 11767 [2021-06-05 03:40:51,111 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:51,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11767 states. [2021-06-05 03:40:51,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11767 to 5230. [2021-06-05 03:40:51,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5230 states, 5229 states have (on average 4.731497418244406) internal successors, (24741), 5229 states have internal predecessors, (24741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:51,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5230 states to 5230 states and 24741 transitions. [2021-06-05 03:40:51,341 INFO L78 Accepts]: Start accepts. Automaton has 5230 states and 24741 transitions. Word has length 29 [2021-06-05 03:40:51,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:51,341 INFO L482 AbstractCegarLoop]: Abstraction has 5230 states and 24741 transitions. [2021-06-05 03:40:51,341 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:51,341 INFO L276 IsEmpty]: Start isEmpty. Operand 5230 states and 24741 transitions. [2021-06-05 03:40:51,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:51,350 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:51,350 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:51,350 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable234 [2021-06-05 03:40:51,350 INFO L430 AbstractCegarLoop]: === Iteration 236 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:51,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:51,350 INFO L82 PathProgramCache]: Analyzing trace with hash 758362379, now seen corresponding path program 231 times [2021-06-05 03:40:51,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:51,350 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798413254] [2021-06-05 03:40:51,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:51,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:51,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:51,468 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:51,468 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798413254] [2021-06-05 03:40:51,468 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798413254] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:51,468 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:51,468 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:51,468 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502577050] [2021-06-05 03:40:51,468 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:51,468 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:51,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:51,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:51,468 INFO L87 Difference]: Start difference. First operand 5230 states and 24741 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:51,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:51,568 INFO L93 Difference]: Finished difference Result 12413 states and 55500 transitions. [2021-06-05 03:40:51,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:51,568 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:51,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:51,602 INFO L225 Difference]: With dead ends: 12413 [2021-06-05 03:40:51,602 INFO L226 Difference]: Without dead ends: 11871 [2021-06-05 03:40:51,603 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 124.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:51,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11871 states. [2021-06-05 03:40:51,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11871 to 5338. [2021-06-05 03:40:51,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5338 states, 5337 states have (on average 4.710698894510024) internal successors, (25141), 5337 states have internal predecessors, (25141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:51,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5338 states to 5338 states and 25141 transitions. [2021-06-05 03:40:51,845 INFO L78 Accepts]: Start accepts. Automaton has 5338 states and 25141 transitions. Word has length 29 [2021-06-05 03:40:51,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:51,845 INFO L482 AbstractCegarLoop]: Abstraction has 5338 states and 25141 transitions. [2021-06-05 03:40:51,845 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:51,845 INFO L276 IsEmpty]: Start isEmpty. Operand 5338 states and 25141 transitions. [2021-06-05 03:40:51,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:51,854 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:51,854 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:51,854 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable235 [2021-06-05 03:40:51,854 INFO L430 AbstractCegarLoop]: === Iteration 237 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:51,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:51,855 INFO L82 PathProgramCache]: Analyzing trace with hash -803965783, now seen corresponding path program 232 times [2021-06-05 03:40:51,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:51,855 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653179666] [2021-06-05 03:40:51,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:51,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:51,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:51,972 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:51,972 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653179666] [2021-06-05 03:40:51,972 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653179666] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:51,972 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:51,972 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:51,972 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874683357] [2021-06-05 03:40:51,972 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:51,972 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:51,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:51,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:51,973 INFO L87 Difference]: Start difference. First operand 5338 states and 25141 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:52,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:52,090 INFO L93 Difference]: Finished difference Result 12342 states and 55117 transitions. [2021-06-05 03:40:52,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:52,091 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:52,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:52,120 INFO L225 Difference]: With dead ends: 12342 [2021-06-05 03:40:52,120 INFO L226 Difference]: Without dead ends: 11763 [2021-06-05 03:40:52,120 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 141.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:52,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11763 states. [2021-06-05 03:40:52,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11763 to 5230. [2021-06-05 03:40:52,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5230 states, 5229 states have (on average 4.721170395869191) internal successors, (24687), 5229 states have internal predecessors, (24687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:52,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5230 states to 5230 states and 24687 transitions. [2021-06-05 03:40:52,350 INFO L78 Accepts]: Start accepts. Automaton has 5230 states and 24687 transitions. Word has length 29 [2021-06-05 03:40:52,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:52,350 INFO L482 AbstractCegarLoop]: Abstraction has 5230 states and 24687 transitions. [2021-06-05 03:40:52,350 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:52,350 INFO L276 IsEmpty]: Start isEmpty. Operand 5230 states and 24687 transitions. [2021-06-05 03:40:52,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:52,359 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:52,359 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:52,359 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable236 [2021-06-05 03:40:52,359 INFO L430 AbstractCegarLoop]: === Iteration 238 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:52,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:52,360 INFO L82 PathProgramCache]: Analyzing trace with hash 1369312425, now seen corresponding path program 233 times [2021-06-05 03:40:52,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:52,360 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273545372] [2021-06-05 03:40:52,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:52,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:52,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:52,466 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:52,466 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273545372] [2021-06-05 03:40:52,466 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273545372] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:52,466 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:52,466 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:52,466 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021403381] [2021-06-05 03:40:52,466 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:52,466 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:52,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:52,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:52,466 INFO L87 Difference]: Start difference. First operand 5230 states and 24687 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:52,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:52,582 INFO L93 Difference]: Finished difference Result 12247 states and 54776 transitions. [2021-06-05 03:40:52,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:52,582 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:52,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:52,611 INFO L225 Difference]: With dead ends: 12247 [2021-06-05 03:40:52,611 INFO L226 Difference]: Without dead ends: 11772 [2021-06-05 03:40:52,612 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 130.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:52,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11772 states. [2021-06-05 03:40:52,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11772 to 5306. [2021-06-05 03:40:52,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5306 states, 5305 states have (on average 4.707822808671065) internal successors, (24975), 5305 states have internal predecessors, (24975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:52,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5306 states to 5306 states and 24975 transitions. [2021-06-05 03:40:52,844 INFO L78 Accepts]: Start accepts. Automaton has 5306 states and 24975 transitions. Word has length 29 [2021-06-05 03:40:52,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:52,844 INFO L482 AbstractCegarLoop]: Abstraction has 5306 states and 24975 transitions. [2021-06-05 03:40:52,844 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:52,844 INFO L276 IsEmpty]: Start isEmpty. Operand 5306 states and 24975 transitions. [2021-06-05 03:40:52,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:52,853 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:52,853 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:52,853 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable237 [2021-06-05 03:40:52,853 INFO L430 AbstractCegarLoop]: === Iteration 239 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:52,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:52,853 INFO L82 PathProgramCache]: Analyzing trace with hash -1844592245, now seen corresponding path program 234 times [2021-06-05 03:40:52,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:52,853 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722769397] [2021-06-05 03:40:52,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:52,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:52,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:52,958 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:52,958 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722769397] [2021-06-05 03:40:52,958 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722769397] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:52,958 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:52,958 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:52,958 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003800045] [2021-06-05 03:40:52,958 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:52,958 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:52,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:52,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:52,958 INFO L87 Difference]: Start difference. First operand 5306 states and 24975 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:53,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:53,076 INFO L93 Difference]: Finished difference Result 12243 states and 54688 transitions. [2021-06-05 03:40:53,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:53,076 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:53,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:53,105 INFO L225 Difference]: With dead ends: 12243 [2021-06-05 03:40:53,105 INFO L226 Difference]: Without dead ends: 11642 [2021-06-05 03:40:53,105 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:53,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11642 states. [2021-06-05 03:40:53,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11642 to 5176. [2021-06-05 03:40:53,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5176 states, 5175 states have (on average 4.731787439613527) internal successors, (24487), 5175 states have internal predecessors, (24487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:53,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5176 states to 5176 states and 24487 transitions. [2021-06-05 03:40:53,332 INFO L78 Accepts]: Start accepts. Automaton has 5176 states and 24487 transitions. Word has length 29 [2021-06-05 03:40:53,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:53,332 INFO L482 AbstractCegarLoop]: Abstraction has 5176 states and 24487 transitions. [2021-06-05 03:40:53,332 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:53,332 INFO L276 IsEmpty]: Start isEmpty. Operand 5176 states and 24487 transitions. [2021-06-05 03:40:53,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:53,341 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:53,341 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:53,341 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable238 [2021-06-05 03:40:53,341 INFO L430 AbstractCegarLoop]: === Iteration 240 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:53,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:53,341 INFO L82 PathProgramCache]: Analyzing trace with hash -2083306361, now seen corresponding path program 235 times [2021-06-05 03:40:53,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:53,341 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565236781] [2021-06-05 03:40:53,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:53,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:53,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:53,452 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:53,452 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565236781] [2021-06-05 03:40:53,452 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565236781] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:53,452 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:53,453 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:53,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620747975] [2021-06-05 03:40:53,453 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:53,453 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:53,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:53,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:53,453 INFO L87 Difference]: Start difference. First operand 5176 states and 24487 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:53,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:53,569 INFO L93 Difference]: Finished difference Result 12112 states and 54260 transitions. [2021-06-05 03:40:53,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:53,569 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:53,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:53,598 INFO L225 Difference]: With dead ends: 12112 [2021-06-05 03:40:53,598 INFO L226 Difference]: Without dead ends: 11635 [2021-06-05 03:40:53,598 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 131.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:53,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11635 states. [2021-06-05 03:40:53,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11635 to 5292. [2021-06-05 03:40:53,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5292 states, 5291 states have (on average 4.721413721413722) internal successors, (24981), 5291 states have internal predecessors, (24981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:53,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5292 states to 5292 states and 24981 transitions. [2021-06-05 03:40:53,834 INFO L78 Accepts]: Start accepts. Automaton has 5292 states and 24981 transitions. Word has length 29 [2021-06-05 03:40:53,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:53,834 INFO L482 AbstractCegarLoop]: Abstraction has 5292 states and 24981 transitions. [2021-06-05 03:40:53,835 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:53,835 INFO L276 IsEmpty]: Start isEmpty. Operand 5292 states and 24981 transitions. [2021-06-05 03:40:53,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:53,843 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:53,843 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:53,843 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable239 [2021-06-05 03:40:53,844 INFO L430 AbstractCegarLoop]: === Iteration 241 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:53,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:53,844 INFO L82 PathProgramCache]: Analyzing trace with hash 2004852969, now seen corresponding path program 236 times [2021-06-05 03:40:53,844 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:53,844 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790765205] [2021-06-05 03:40:53,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:53,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:53,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:53,982 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:53,982 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790765205] [2021-06-05 03:40:53,983 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790765205] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:53,983 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:53,983 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:53,983 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158012576] [2021-06-05 03:40:53,983 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:53,983 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:53,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:53,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:53,983 INFO L87 Difference]: Start difference. First operand 5292 states and 24981 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:54,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:54,101 INFO L93 Difference]: Finished difference Result 12110 states and 54177 transitions. [2021-06-05 03:40:54,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:54,101 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:54,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:54,129 INFO L225 Difference]: With dead ends: 12110 [2021-06-05 03:40:54,130 INFO L226 Difference]: Without dead ends: 11557 [2021-06-05 03:40:54,130 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 149.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:54,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11557 states. [2021-06-05 03:40:54,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11557 to 5214. [2021-06-05 03:40:54,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5214 states, 5213 states have (on average 4.7285632073662) internal successors, (24650), 5213 states have internal predecessors, (24650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:54,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5214 states to 5214 states and 24650 transitions. [2021-06-05 03:40:54,356 INFO L78 Accepts]: Start accepts. Automaton has 5214 states and 24650 transitions. Word has length 29 [2021-06-05 03:40:54,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:54,356 INFO L482 AbstractCegarLoop]: Abstraction has 5214 states and 24650 transitions. [2021-06-05 03:40:54,356 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:54,356 INFO L276 IsEmpty]: Start isEmpty. Operand 5214 states and 24650 transitions. [2021-06-05 03:40:54,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:54,365 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:54,365 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:54,365 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable240 [2021-06-05 03:40:54,365 INFO L430 AbstractCegarLoop]: === Iteration 242 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:54,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:54,365 INFO L82 PathProgramCache]: Analyzing trace with hash 1730758889, now seen corresponding path program 237 times [2021-06-05 03:40:54,365 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:54,365 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214971767] [2021-06-05 03:40:54,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:54,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:54,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:54,471 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:54,471 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214971767] [2021-06-05 03:40:54,471 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214971767] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:54,471 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:54,471 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:54,471 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830148290] [2021-06-05 03:40:54,471 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:54,471 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:54,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:54,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:54,471 INFO L87 Difference]: Start difference. First operand 5214 states and 24650 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:54,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:54,591 INFO L93 Difference]: Finished difference Result 12106 states and 54203 transitions. [2021-06-05 03:40:54,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:54,591 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:54,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:54,619 INFO L225 Difference]: With dead ends: 12106 [2021-06-05 03:40:54,620 INFO L226 Difference]: Without dead ends: 11629 [2021-06-05 03:40:54,620 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 129.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:54,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11629 states. [2021-06-05 03:40:54,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11629 to 5290. [2021-06-05 03:40:54,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5290 states, 5289 states have (on average 4.715069011155228) internal successors, (24938), 5289 states have internal predecessors, (24938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:54,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5290 states to 5290 states and 24938 transitions. [2021-06-05 03:40:54,850 INFO L78 Accepts]: Start accepts. Automaton has 5290 states and 24938 transitions. Word has length 29 [2021-06-05 03:40:54,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:54,850 INFO L482 AbstractCegarLoop]: Abstraction has 5290 states and 24938 transitions. [2021-06-05 03:40:54,850 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:54,850 INFO L276 IsEmpty]: Start isEmpty. Operand 5290 states and 24938 transitions. [2021-06-05 03:40:54,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:54,858 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:54,858 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:54,859 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable241 [2021-06-05 03:40:54,859 INFO L430 AbstractCegarLoop]: === Iteration 243 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:54,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:54,859 INFO L82 PathProgramCache]: Analyzing trace with hash -1245357975, now seen corresponding path program 238 times [2021-06-05 03:40:54,859 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:54,859 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215461400] [2021-06-05 03:40:54,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:54,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:54,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:54,966 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:54,966 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215461400] [2021-06-05 03:40:54,966 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215461400] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:54,966 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:54,966 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:54,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374386940] [2021-06-05 03:40:54,967 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:54,967 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:54,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:54,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:54,967 INFO L87 Difference]: Start difference. First operand 5290 states and 24938 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:55,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:55,084 INFO L93 Difference]: Finished difference Result 12100 states and 54110 transitions. [2021-06-05 03:40:55,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:55,084 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:55,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:55,113 INFO L225 Difference]: With dead ends: 12100 [2021-06-05 03:40:55,113 INFO L226 Difference]: Without dead ends: 11553 [2021-06-05 03:40:55,113 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 130.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:55,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11553 states. [2021-06-05 03:40:55,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11553 to 5214. [2021-06-05 03:40:55,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5214 states, 5213 states have (on average 4.721273738730098) internal successors, (24612), 5213 states have internal predecessors, (24612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:55,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5214 states to 5214 states and 24612 transitions. [2021-06-05 03:40:55,345 INFO L78 Accepts]: Start accepts. Automaton has 5214 states and 24612 transitions. Word has length 29 [2021-06-05 03:40:55,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:55,345 INFO L482 AbstractCegarLoop]: Abstraction has 5214 states and 24612 transitions. [2021-06-05 03:40:55,345 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:55,345 INFO L276 IsEmpty]: Start isEmpty. Operand 5214 states and 24612 transitions. [2021-06-05 03:40:55,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:55,354 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:55,354 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:55,354 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable242 [2021-06-05 03:40:55,354 INFO L430 AbstractCegarLoop]: === Iteration 244 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:55,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:55,354 INFO L82 PathProgramCache]: Analyzing trace with hash 137835595, now seen corresponding path program 239 times [2021-06-05 03:40:55,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:55,354 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056068073] [2021-06-05 03:40:55,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:55,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:55,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:55,460 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:55,460 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056068073] [2021-06-05 03:40:55,461 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056068073] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:55,461 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:55,461 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:55,461 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893452792] [2021-06-05 03:40:55,461 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:55,461 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:55,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:55,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:55,461 INFO L87 Difference]: Start difference. First operand 5214 states and 24612 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:55,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:55,576 INFO L93 Difference]: Finished difference Result 12102 states and 54155 transitions. [2021-06-05 03:40:55,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:55,576 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:55,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:55,605 INFO L225 Difference]: With dead ends: 12102 [2021-06-05 03:40:55,605 INFO L226 Difference]: Without dead ends: 11627 [2021-06-05 03:40:55,605 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 130.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:55,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11627 states. [2021-06-05 03:40:55,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11627 to 5290. [2021-06-05 03:40:55,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5290 states, 5289 states have (on average 4.707884288145207) internal successors, (24900), 5289 states have internal predecessors, (24900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:55,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5290 states to 5290 states and 24900 transitions. [2021-06-05 03:40:55,834 INFO L78 Accepts]: Start accepts. Automaton has 5290 states and 24900 transitions. Word has length 29 [2021-06-05 03:40:55,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:55,834 INFO L482 AbstractCegarLoop]: Abstraction has 5290 states and 24900 transitions. [2021-06-05 03:40:55,834 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:55,834 INFO L276 IsEmpty]: Start isEmpty. Operand 5290 states and 24900 transitions. [2021-06-05 03:40:55,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:55,842 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:55,842 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:55,842 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable243 [2021-06-05 03:40:55,842 INFO L430 AbstractCegarLoop]: === Iteration 245 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:55,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:55,843 INFO L82 PathProgramCache]: Analyzing trace with hash -708961367, now seen corresponding path program 240 times [2021-06-05 03:40:55,843 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:55,843 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487817745] [2021-06-05 03:40:55,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:55,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:55,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:55,950 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:55,950 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487817745] [2021-06-05 03:40:55,950 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487817745] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:55,950 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:55,950 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:55,950 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818619576] [2021-06-05 03:40:55,950 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:55,950 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:55,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:55,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:55,951 INFO L87 Difference]: Start difference. First operand 5290 states and 24900 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:56,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:56,072 INFO L93 Difference]: Finished difference Result 12098 states and 54067 transitions. [2021-06-05 03:40:56,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:56,073 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:56,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:56,101 INFO L225 Difference]: With dead ends: 12098 [2021-06-05 03:40:56,101 INFO L226 Difference]: Without dead ends: 11440 [2021-06-05 03:40:56,102 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 130.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:56,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11440 states. [2021-06-05 03:40:56,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11440 to 5103. [2021-06-05 03:40:56,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5103 states, 5102 states have (on average 4.759506076048608) internal successors, (24283), 5102 states have internal predecessors, (24283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:56,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5103 states to 5103 states and 24283 transitions. [2021-06-05 03:40:56,330 INFO L78 Accepts]: Start accepts. Automaton has 5103 states and 24283 transitions. Word has length 29 [2021-06-05 03:40:56,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:56,330 INFO L482 AbstractCegarLoop]: Abstraction has 5103 states and 24283 transitions. [2021-06-05 03:40:56,330 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:56,330 INFO L276 IsEmpty]: Start isEmpty. Operand 5103 states and 24283 transitions. [2021-06-05 03:40:56,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:56,339 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:56,339 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:56,339 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable244 [2021-06-05 03:40:56,339 INFO L430 AbstractCegarLoop]: === Iteration 246 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:56,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:56,339 INFO L82 PathProgramCache]: Analyzing trace with hash 545987019, now seen corresponding path program 241 times [2021-06-05 03:40:56,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:56,339 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069677444] [2021-06-05 03:40:56,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:56,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:56,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:56,479 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:56,479 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069677444] [2021-06-05 03:40:56,479 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069677444] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:56,479 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:56,479 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:56,479 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613350145] [2021-06-05 03:40:56,479 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:56,479 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:56,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:56,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:56,480 INFO L87 Difference]: Start difference. First operand 5103 states and 24283 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:56,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:56,600 INFO L93 Difference]: Finished difference Result 11435 states and 51030 transitions. [2021-06-05 03:40:56,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:56,601 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:56,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:56,627 INFO L225 Difference]: With dead ends: 11435 [2021-06-05 03:40:56,627 INFO L226 Difference]: Without dead ends: 11020 [2021-06-05 03:40:56,628 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 164.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:56,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11020 states. [2021-06-05 03:40:56,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11020 to 5275. [2021-06-05 03:40:56,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5275 states, 5274 states have (on average 4.752180508153204) internal successors, (25063), 5274 states have internal predecessors, (25063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:56,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5275 states to 5275 states and 25063 transitions. [2021-06-05 03:40:56,862 INFO L78 Accepts]: Start accepts. Automaton has 5275 states and 25063 transitions. Word has length 29 [2021-06-05 03:40:56,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:56,862 INFO L482 AbstractCegarLoop]: Abstraction has 5275 states and 25063 transitions. [2021-06-05 03:40:56,862 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:56,862 INFO L276 IsEmpty]: Start isEmpty. Operand 5275 states and 25063 transitions. [2021-06-05 03:40:56,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:56,871 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:56,871 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:56,871 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable245 [2021-06-05 03:40:56,871 INFO L430 AbstractCegarLoop]: === Iteration 247 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:56,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:56,872 INFO L82 PathProgramCache]: Analyzing trace with hash -1994159669, now seen corresponding path program 242 times [2021-06-05 03:40:56,872 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:56,872 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576452071] [2021-06-05 03:40:56,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:56,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:57,017 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 17 [2021-06-05 03:40:57,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:57,099 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:57,099 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576452071] [2021-06-05 03:40:57,099 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576452071] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:57,099 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:57,099 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:57,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024678069] [2021-06-05 03:40:57,099 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:57,100 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:57,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:57,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:57,100 INFO L87 Difference]: Start difference. First operand 5275 states and 25063 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:57,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:57,218 INFO L93 Difference]: Finished difference Result 11562 states and 51509 transitions. [2021-06-05 03:40:57,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:57,219 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:57,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:57,246 INFO L225 Difference]: With dead ends: 11562 [2021-06-05 03:40:57,246 INFO L226 Difference]: Without dead ends: 10940 [2021-06-05 03:40:57,247 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 233.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:57,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10940 states. [2021-06-05 03:40:57,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10940 to 5195. [2021-06-05 03:40:57,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5195 states, 5194 states have (on average 4.756064690026954) internal successors, (24703), 5194 states have internal predecessors, (24703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:57,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5195 states to 5195 states and 24703 transitions. [2021-06-05 03:40:57,473 INFO L78 Accepts]: Start accepts. Automaton has 5195 states and 24703 transitions. Word has length 29 [2021-06-05 03:40:57,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:57,473 INFO L482 AbstractCegarLoop]: Abstraction has 5195 states and 24703 transitions. [2021-06-05 03:40:57,473 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:57,473 INFO L276 IsEmpty]: Start isEmpty. Operand 5195 states and 24703 transitions. [2021-06-05 03:40:57,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:57,482 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:57,482 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:57,482 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable246 [2021-06-05 03:40:57,482 INFO L430 AbstractCegarLoop]: === Iteration 248 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:57,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:57,483 INFO L82 PathProgramCache]: Analyzing trace with hash 326185163, now seen corresponding path program 243 times [2021-06-05 03:40:57,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:57,483 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743753280] [2021-06-05 03:40:57,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:57,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:57,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:57,622 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:57,622 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743753280] [2021-06-05 03:40:57,622 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743753280] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:57,622 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:57,623 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:57,623 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744459588] [2021-06-05 03:40:57,623 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:57,623 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:57,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:57,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:57,623 INFO L87 Difference]: Start difference. First operand 5195 states and 24703 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:57,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:57,739 INFO L93 Difference]: Finished difference Result 11338 states and 50588 transitions. [2021-06-05 03:40:57,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:57,739 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:57,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:57,765 INFO L225 Difference]: With dead ends: 11338 [2021-06-05 03:40:57,766 INFO L226 Difference]: Without dead ends: 10923 [2021-06-05 03:40:57,766 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 160.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:57,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10923 states. [2021-06-05 03:40:57,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10923 to 5243. [2021-06-05 03:40:57,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5243 states, 5242 states have (on average 4.746089278901183) internal successors, (24879), 5242 states have internal predecessors, (24879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:57,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5243 states to 5243 states and 24879 transitions. [2021-06-05 03:40:57,990 INFO L78 Accepts]: Start accepts. Automaton has 5243 states and 24879 transitions. Word has length 29 [2021-06-05 03:40:57,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:57,990 INFO L482 AbstractCegarLoop]: Abstraction has 5243 states and 24879 transitions. [2021-06-05 03:40:57,990 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:57,990 INFO L276 IsEmpty]: Start isEmpty. Operand 5243 states and 24879 transitions. [2021-06-05 03:40:57,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:57,999 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:57,999 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:57,999 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable247 [2021-06-05 03:40:57,999 INFO L430 AbstractCegarLoop]: === Iteration 249 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:58,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:58,000 INFO L82 PathProgramCache]: Analyzing trace with hash 1042848109, now seen corresponding path program 244 times [2021-06-05 03:40:58,000 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:58,000 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127522582] [2021-06-05 03:40:58,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:58,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:58,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:58,139 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:58,139 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127522582] [2021-06-05 03:40:58,139 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127522582] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:58,139 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:58,139 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:58,139 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233739470] [2021-06-05 03:40:58,139 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:58,140 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:58,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:58,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:58,140 INFO L87 Difference]: Start difference. First operand 5243 states and 24879 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:58,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:58,266 INFO L93 Difference]: Finished difference Result 11400 states and 50809 transitions. [2021-06-05 03:40:58,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:58,266 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:58,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:58,293 INFO L225 Difference]: With dead ends: 11400 [2021-06-05 03:40:58,293 INFO L226 Difference]: Without dead ends: 10875 [2021-06-05 03:40:58,293 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 160.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:58,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10875 states. [2021-06-05 03:40:58,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10875 to 5195. [2021-06-05 03:40:58,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5195 states, 5194 states have (on average 4.751443973815942) internal successors, (24679), 5194 states have internal predecessors, (24679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:58,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5195 states to 5195 states and 24679 transitions. [2021-06-05 03:40:58,519 INFO L78 Accepts]: Start accepts. Automaton has 5195 states and 24679 transitions. Word has length 29 [2021-06-05 03:40:58,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:58,519 INFO L482 AbstractCegarLoop]: Abstraction has 5195 states and 24679 transitions. [2021-06-05 03:40:58,520 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:58,520 INFO L276 IsEmpty]: Start isEmpty. Operand 5195 states and 24679 transitions. [2021-06-05 03:40:58,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:58,528 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:58,528 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:58,528 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable248 [2021-06-05 03:40:58,528 INFO L430 AbstractCegarLoop]: === Iteration 250 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:58,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:58,529 INFO L82 PathProgramCache]: Analyzing trace with hash -1168893587, now seen corresponding path program 245 times [2021-06-05 03:40:58,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:58,529 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353282701] [2021-06-05 03:40:58,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:58,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:58,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:58,654 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:58,654 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353282701] [2021-06-05 03:40:58,654 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353282701] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:58,654 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:58,654 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:58,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543920718] [2021-06-05 03:40:58,655 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:58,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:58,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:58,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:58,655 INFO L87 Difference]: Start difference. First operand 5195 states and 24679 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:58,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:58,753 INFO L93 Difference]: Finished difference Result 11687 states and 52024 transitions. [2021-06-05 03:40:58,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:58,754 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:58,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:58,781 INFO L225 Difference]: With dead ends: 11687 [2021-06-05 03:40:58,781 INFO L226 Difference]: Without dead ends: 11145 [2021-06-05 03:40:58,781 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 132.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:58,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11145 states. [2021-06-05 03:40:58,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11145 to 5338. [2021-06-05 03:40:58,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5338 states, 5337 states have (on average 4.721379051901818) internal successors, (25198), 5337 states have internal predecessors, (25198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:59,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5338 states to 5338 states and 25198 transitions. [2021-06-05 03:40:59,008 INFO L78 Accepts]: Start accepts. Automaton has 5338 states and 25198 transitions. Word has length 29 [2021-06-05 03:40:59,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:59,009 INFO L482 AbstractCegarLoop]: Abstraction has 5338 states and 25198 transitions. [2021-06-05 03:40:59,009 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:59,009 INFO L276 IsEmpty]: Start isEmpty. Operand 5338 states and 25198 transitions. [2021-06-05 03:40:59,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:59,017 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:59,017 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:59,018 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable249 [2021-06-05 03:40:59,018 INFO L430 AbstractCegarLoop]: === Iteration 251 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:59,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:59,018 INFO L82 PathProgramCache]: Analyzing trace with hash 1082736715, now seen corresponding path program 246 times [2021-06-05 03:40:59,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:59,018 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294164757] [2021-06-05 03:40:59,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:59,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:59,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:59,146 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:59,146 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294164757] [2021-06-05 03:40:59,146 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294164757] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:59,146 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:59,146 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:59,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641827918] [2021-06-05 03:40:59,146 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:59,146 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:59,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:59,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:59,146 INFO L87 Difference]: Start difference. First operand 5338 states and 25198 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:59,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:59,262 INFO L93 Difference]: Finished difference Result 11622 states and 51655 transitions. [2021-06-05 03:40:59,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:59,262 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:59,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:59,289 INFO L225 Difference]: With dead ends: 11622 [2021-06-05 03:40:59,289 INFO L226 Difference]: Without dead ends: 10946 [2021-06-05 03:40:59,289 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 148.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:59,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10946 states. [2021-06-05 03:40:59,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10946 to 5139. [2021-06-05 03:40:59,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5139 states, 5138 states have (on average 4.758855585831062) internal successors, (24451), 5138 states have internal predecessors, (24451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:59,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5139 states to 5139 states and 24451 transitions. [2021-06-05 03:40:59,512 INFO L78 Accepts]: Start accepts. Automaton has 5139 states and 24451 transitions. Word has length 29 [2021-06-05 03:40:59,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:40:59,512 INFO L482 AbstractCegarLoop]: Abstraction has 5139 states and 24451 transitions. [2021-06-05 03:40:59,512 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:59,512 INFO L276 IsEmpty]: Start isEmpty. Operand 5139 states and 24451 transitions. [2021-06-05 03:40:59,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:40:59,520 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:40:59,521 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:40:59,521 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable250 [2021-06-05 03:40:59,521 INFO L430 AbstractCegarLoop]: === Iteration 252 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:40:59,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:40:59,521 INFO L82 PathProgramCache]: Analyzing trace with hash -262545845, now seen corresponding path program 247 times [2021-06-05 03:40:59,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:40:59,521 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816171819] [2021-06-05 03:40:59,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:40:59,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:40:59,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:40:59,663 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:40:59,663 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816171819] [2021-06-05 03:40:59,663 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816171819] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:40:59,663 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:40:59,664 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:40:59,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740961334] [2021-06-05 03:40:59,664 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:40:59,664 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:40:59,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:40:59,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:40:59,664 INFO L87 Difference]: Start difference. First operand 5139 states and 24451 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:40:59,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:40:59,783 INFO L93 Difference]: Finished difference Result 11270 states and 50287 transitions. [2021-06-05 03:40:59,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:40:59,783 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:40:59,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:40:59,809 INFO L225 Difference]: With dead ends: 11270 [2021-06-05 03:40:59,809 INFO L226 Difference]: Without dead ends: 10855 [2021-06-05 03:40:59,810 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 162.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:40:59,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10855 states. [2021-06-05 03:41:00,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10855 to 5251. [2021-06-05 03:41:00,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5251 states, 5250 states have (on average 4.7487619047619045) internal successors, (24931), 5250 states have internal predecessors, (24931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:00,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5251 states to 5251 states and 24931 transitions. [2021-06-05 03:41:00,032 INFO L78 Accepts]: Start accepts. Automaton has 5251 states and 24931 transitions. Word has length 29 [2021-06-05 03:41:00,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:00,032 INFO L482 AbstractCegarLoop]: Abstraction has 5251 states and 24931 transitions. [2021-06-05 03:41:00,032 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:00,032 INFO L276 IsEmpty]: Start isEmpty. Operand 5251 states and 24931 transitions. [2021-06-05 03:41:00,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:00,040 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:00,040 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:00,041 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable251 [2021-06-05 03:41:00,041 INFO L430 AbstractCegarLoop]: === Iteration 253 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:00,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:00,041 INFO L82 PathProgramCache]: Analyzing trace with hash 1492274763, now seen corresponding path program 248 times [2021-06-05 03:41:00,041 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:00,041 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898151731] [2021-06-05 03:41:00,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:00,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:00,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:00,206 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:00,206 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898151731] [2021-06-05 03:41:00,206 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898151731] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:00,206 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:00,206 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:00,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267397257] [2021-06-05 03:41:00,206 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:00,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:00,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:00,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:00,206 INFO L87 Difference]: Start difference. First operand 5251 states and 24931 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:00,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:00,313 INFO L93 Difference]: Finished difference Result 11397 states and 50766 transitions. [2021-06-05 03:41:00,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:00,313 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:00,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:00,339 INFO L225 Difference]: With dead ends: 11397 [2021-06-05 03:41:00,340 INFO L226 Difference]: Without dead ends: 10775 [2021-06-05 03:41:00,340 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 166.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:00,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10775 states. [2021-06-05 03:41:00,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10775 to 5171. [2021-06-05 03:41:00,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5171 states, 5170 states have (on average 4.754158607350097) internal successors, (24579), 5170 states have internal predecessors, (24579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:00,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5171 states to 5171 states and 24579 transitions. [2021-06-05 03:41:00,560 INFO L78 Accepts]: Start accepts. Automaton has 5171 states and 24579 transitions. Word has length 29 [2021-06-05 03:41:00,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:00,560 INFO L482 AbstractCegarLoop]: Abstraction has 5171 states and 24579 transitions. [2021-06-05 03:41:00,560 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:00,561 INFO L276 IsEmpty]: Start isEmpty. Operand 5171 states and 24579 transitions. [2021-06-05 03:41:00,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:00,569 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:00,569 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:00,569 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable252 [2021-06-05 03:41:00,569 INFO L430 AbstractCegarLoop]: === Iteration 254 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:00,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:00,569 INFO L82 PathProgramCache]: Analyzing trace with hash -177757847, now seen corresponding path program 249 times [2021-06-05 03:41:00,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:00,570 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839393162] [2021-06-05 03:41:00,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:00,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:00,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:00,695 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:00,695 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839393162] [2021-06-05 03:41:00,695 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839393162] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:00,695 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:00,695 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:00,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498821521] [2021-06-05 03:41:00,695 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:00,695 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:00,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:00,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:00,695 INFO L87 Difference]: Start difference. First operand 5171 states and 24579 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:00,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:00,825 INFO L93 Difference]: Finished difference Result 11095 states and 49504 transitions. [2021-06-05 03:41:00,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:00,826 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:00,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:00,851 INFO L225 Difference]: With dead ends: 11095 [2021-06-05 03:41:00,851 INFO L226 Difference]: Without dead ends: 10680 [2021-06-05 03:41:00,852 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 148.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:00,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10680 states. [2021-06-05 03:41:01,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10680 to 5203. [2021-06-05 03:41:01,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5203 states, 5202 states have (on average 4.746443675509419) internal successors, (24691), 5202 states have internal predecessors, (24691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:01,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5203 states to 5203 states and 24691 transitions. [2021-06-05 03:41:01,071 INFO L78 Accepts]: Start accepts. Automaton has 5203 states and 24691 transitions. Word has length 29 [2021-06-05 03:41:01,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:01,072 INFO L482 AbstractCegarLoop]: Abstraction has 5203 states and 24691 transitions. [2021-06-05 03:41:01,072 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:01,072 INFO L276 IsEmpty]: Start isEmpty. Operand 5203 states and 24691 transitions. [2021-06-05 03:41:01,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:01,080 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:01,080 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:01,080 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable253 [2021-06-05 03:41:01,080 INFO L430 AbstractCegarLoop]: === Iteration 255 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:01,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:01,081 INFO L82 PathProgramCache]: Analyzing trace with hash 1715088455, now seen corresponding path program 250 times [2021-06-05 03:41:01,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:01,081 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739519844] [2021-06-05 03:41:01,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:01,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:01,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:01,209 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:01,209 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739519844] [2021-06-05 03:41:01,210 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739519844] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:01,210 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:01,210 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:01,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300406634] [2021-06-05 03:41:01,210 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:01,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:01,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:01,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:01,210 INFO L87 Difference]: Start difference. First operand 5203 states and 24691 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:01,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:01,320 INFO L93 Difference]: Finished difference Result 11095 states and 49472 transitions. [2021-06-05 03:41:01,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:01,320 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:01,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:01,347 INFO L225 Difference]: With dead ends: 11095 [2021-06-05 03:41:01,347 INFO L226 Difference]: Without dead ends: 10648 [2021-06-05 03:41:01,347 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 133.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:01,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10648 states. [2021-06-05 03:41:01,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10648 to 5171. [2021-06-05 03:41:01,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5171 states, 5170 states have (on average 4.751063829787234) internal successors, (24563), 5170 states have internal predecessors, (24563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:01,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5171 states to 5171 states and 24563 transitions. [2021-06-05 03:41:01,568 INFO L78 Accepts]: Start accepts. Automaton has 5171 states and 24563 transitions. Word has length 29 [2021-06-05 03:41:01,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:01,568 INFO L482 AbstractCegarLoop]: Abstraction has 5171 states and 24563 transitions. [2021-06-05 03:41:01,568 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:01,568 INFO L276 IsEmpty]: Start isEmpty. Operand 5171 states and 24563 transitions. [2021-06-05 03:41:01,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:01,579 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:01,579 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:01,579 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable254 [2021-06-05 03:41:01,579 INFO L430 AbstractCegarLoop]: === Iteration 256 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:01,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:01,580 INFO L82 PathProgramCache]: Analyzing trace with hash -1858275291, now seen corresponding path program 251 times [2021-06-05 03:41:01,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:01,580 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14753980] [2021-06-05 03:41:01,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:01,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:01,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:01,721 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:01,721 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14753980] [2021-06-05 03:41:01,721 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14753980] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:01,721 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:01,721 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:01,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922412953] [2021-06-05 03:41:01,722 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:01,722 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:01,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:01,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:01,722 INFO L87 Difference]: Start difference. First operand 5171 states and 24563 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:01,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:01,827 INFO L93 Difference]: Finished difference Result 11397 states and 50766 transitions. [2021-06-05 03:41:01,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:01,829 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:01,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:01,856 INFO L225 Difference]: With dead ends: 11397 [2021-06-05 03:41:01,857 INFO L226 Difference]: Without dead ends: 10855 [2021-06-05 03:41:01,857 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 142.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:01,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10855 states. [2021-06-05 03:41:02,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10855 to 5251. [2021-06-05 03:41:02,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5251 states, 5250 states have (on average 4.73352380952381) internal successors, (24851), 5250 states have internal predecessors, (24851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:02,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5251 states to 5251 states and 24851 transitions. [2021-06-05 03:41:02,082 INFO L78 Accepts]: Start accepts. Automaton has 5251 states and 24851 transitions. Word has length 29 [2021-06-05 03:41:02,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:02,082 INFO L482 AbstractCegarLoop]: Abstraction has 5251 states and 24851 transitions. [2021-06-05 03:41:02,082 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:02,083 INFO L276 IsEmpty]: Start isEmpty. Operand 5251 states and 24851 transitions. [2021-06-05 03:41:02,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:02,091 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:02,091 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:02,091 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable255 [2021-06-05 03:41:02,091 INFO L430 AbstractCegarLoop]: === Iteration 257 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:02,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:02,092 INFO L82 PathProgramCache]: Analyzing trace with hash -2065083257, now seen corresponding path program 252 times [2021-06-05 03:41:02,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:02,092 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854801281] [2021-06-05 03:41:02,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:02,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:02,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:02,234 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:02,234 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854801281] [2021-06-05 03:41:02,235 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854801281] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:02,235 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:02,235 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:02,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619939277] [2021-06-05 03:41:02,235 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:02,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:02,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:02,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:02,235 INFO L87 Difference]: Start difference. First operand 5251 states and 24851 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:02,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:02,353 INFO L93 Difference]: Finished difference Result 11270 states and 50159 transitions. [2021-06-05 03:41:02,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:02,354 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:02,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:02,382 INFO L225 Difference]: With dead ends: 11270 [2021-06-05 03:41:02,382 INFO L226 Difference]: Without dead ends: 10743 [2021-06-05 03:41:02,382 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 141.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:02,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10743 states. [2021-06-05 03:41:02,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10743 to 5139. [2021-06-05 03:41:02,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5139 states, 5138 states have (on average 4.755741533670689) internal successors, (24435), 5138 states have internal predecessors, (24435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:02,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5139 states to 5139 states and 24435 transitions. [2021-06-05 03:41:02,609 INFO L78 Accepts]: Start accepts. Automaton has 5139 states and 24435 transitions. Word has length 29 [2021-06-05 03:41:02,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:02,609 INFO L482 AbstractCegarLoop]: Abstraction has 5139 states and 24435 transitions. [2021-06-05 03:41:02,609 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:02,609 INFO L276 IsEmpty]: Start isEmpty. Operand 5139 states and 24435 transitions. [2021-06-05 03:41:02,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:02,618 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:02,618 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:02,618 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable256 [2021-06-05 03:41:02,618 INFO L430 AbstractCegarLoop]: === Iteration 258 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:02,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:02,618 INFO L82 PathProgramCache]: Analyzing trace with hash 1008396393, now seen corresponding path program 253 times [2021-06-05 03:41:02,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:02,619 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207046259] [2021-06-05 03:41:02,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:02,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:02,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:02,757 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:02,757 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207046259] [2021-06-05 03:41:02,757 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207046259] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:02,757 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:02,757 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:02,757 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576636244] [2021-06-05 03:41:02,757 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:02,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:02,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:02,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:02,758 INFO L87 Difference]: Start difference. First operand 5139 states and 24435 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:02,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:02,875 INFO L93 Difference]: Finished difference Result 11028 states and 49243 transitions. [2021-06-05 03:41:02,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:02,875 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:02,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:02,901 INFO L225 Difference]: With dead ends: 11028 [2021-06-05 03:41:02,902 INFO L226 Difference]: Without dead ends: 10613 [2021-06-05 03:41:02,902 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 162.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:03,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10613 states. [2021-06-05 03:41:03,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10613 to 5203. [2021-06-05 03:41:03,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5203 states, 5202 states have (on average 4.746443675509419) internal successors, (24691), 5202 states have internal predecessors, (24691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:03,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5203 states to 5203 states and 24691 transitions. [2021-06-05 03:41:03,123 INFO L78 Accepts]: Start accepts. Automaton has 5203 states and 24691 transitions. Word has length 29 [2021-06-05 03:41:03,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:03,123 INFO L482 AbstractCegarLoop]: Abstraction has 5203 states and 24691 transitions. [2021-06-05 03:41:03,123 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:03,124 INFO L276 IsEmpty]: Start isEmpty. Operand 5203 states and 24691 transitions. [2021-06-05 03:41:03,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:03,132 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:03,132 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:03,132 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable257 [2021-06-05 03:41:03,132 INFO L430 AbstractCegarLoop]: === Iteration 259 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:03,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:03,133 INFO L82 PathProgramCache]: Analyzing trace with hash 1725059339, now seen corresponding path program 254 times [2021-06-05 03:41:03,133 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:03,133 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769539502] [2021-06-05 03:41:03,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:03,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:03,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:03,270 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:03,270 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769539502] [2021-06-05 03:41:03,270 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769539502] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:03,270 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:03,270 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:03,270 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369469600] [2021-06-05 03:41:03,271 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:03,271 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:03,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:03,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:03,271 INFO L87 Difference]: Start difference. First operand 5203 states and 24691 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:03,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:03,441 INFO L93 Difference]: Finished difference Result 11090 states and 49464 transitions. [2021-06-05 03:41:03,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:03,441 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:03,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:03,467 INFO L225 Difference]: With dead ends: 11090 [2021-06-05 03:41:03,467 INFO L226 Difference]: Without dead ends: 10565 [2021-06-05 03:41:03,467 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 162.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:03,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10565 states. [2021-06-05 03:41:03,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10565 to 5155. [2021-06-05 03:41:03,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5155 states, 5154 states have (on average 4.753395421032208) internal successors, (24499), 5154 states have internal predecessors, (24499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:03,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 24499 transitions. [2021-06-05 03:41:03,697 INFO L78 Accepts]: Start accepts. Automaton has 5155 states and 24499 transitions. Word has length 29 [2021-06-05 03:41:03,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:03,697 INFO L482 AbstractCegarLoop]: Abstraction has 5155 states and 24499 transitions. [2021-06-05 03:41:03,697 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:03,697 INFO L276 IsEmpty]: Start isEmpty. Operand 5155 states and 24499 transitions. [2021-06-05 03:41:03,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:03,706 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:03,706 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:03,706 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable258 [2021-06-05 03:41:03,706 INFO L430 AbstractCegarLoop]: === Iteration 260 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:03,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:03,706 INFO L82 PathProgramCache]: Analyzing trace with hash 527494347, now seen corresponding path program 255 times [2021-06-05 03:41:03,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:03,706 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016912736] [2021-06-05 03:41:03,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:03,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:03,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:03,834 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:03,834 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016912736] [2021-06-05 03:41:03,834 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016912736] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:03,834 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:03,834 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:03,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722505974] [2021-06-05 03:41:03,834 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:03,834 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:03,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:03,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:03,835 INFO L87 Difference]: Start difference. First operand 5155 states and 24499 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:03,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:03,944 INFO L93 Difference]: Finished difference Result 10950 states and 48878 transitions. [2021-06-05 03:41:03,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:03,945 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:03,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:03,971 INFO L225 Difference]: With dead ends: 10950 [2021-06-05 03:41:03,971 INFO L226 Difference]: Without dead ends: 10535 [2021-06-05 03:41:03,971 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 150.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:04,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10535 states. [2021-06-05 03:41:04,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10535 to 5187. [2021-06-05 03:41:04,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5187 states, 5186 states have (on average 4.745661396066333) internal successors, (24611), 5186 states have internal predecessors, (24611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:04,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 5187 states and 24611 transitions. [2021-06-05 03:41:04,193 INFO L78 Accepts]: Start accepts. Automaton has 5187 states and 24611 transitions. Word has length 29 [2021-06-05 03:41:04,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:04,193 INFO L482 AbstractCegarLoop]: Abstraction has 5187 states and 24611 transitions. [2021-06-05 03:41:04,193 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:04,193 INFO L276 IsEmpty]: Start isEmpty. Operand 5187 states and 24611 transitions. [2021-06-05 03:41:04,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:04,202 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:04,202 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:04,202 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable259 [2021-06-05 03:41:04,202 INFO L430 AbstractCegarLoop]: === Iteration 261 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:04,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:04,202 INFO L82 PathProgramCache]: Analyzing trace with hash 938902343, now seen corresponding path program 256 times [2021-06-05 03:41:04,202 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:04,202 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098692230] [2021-06-05 03:41:04,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:04,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:04,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:04,329 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:04,329 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098692230] [2021-06-05 03:41:04,329 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098692230] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:04,330 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:04,330 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:04,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651100249] [2021-06-05 03:41:04,330 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:04,330 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:04,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:04,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:04,330 INFO L87 Difference]: Start difference. First operand 5187 states and 24611 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:04,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:04,437 INFO L93 Difference]: Finished difference Result 10950 states and 48846 transitions. [2021-06-05 03:41:04,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:04,438 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:04,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:04,464 INFO L225 Difference]: With dead ends: 10950 [2021-06-05 03:41:04,465 INFO L226 Difference]: Without dead ends: 10503 [2021-06-05 03:41:04,465 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 134.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:04,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10503 states. [2021-06-05 03:41:04,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10503 to 5155. [2021-06-05 03:41:04,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5155 states, 5154 states have (on average 4.750291036088475) internal successors, (24483), 5154 states have internal predecessors, (24483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:04,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 24483 transitions. [2021-06-05 03:41:04,687 INFO L78 Accepts]: Start accepts. Automaton has 5155 states and 24483 transitions. Word has length 29 [2021-06-05 03:41:04,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:04,687 INFO L482 AbstractCegarLoop]: Abstraction has 5155 states and 24483 transitions. [2021-06-05 03:41:04,687 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:04,687 INFO L276 IsEmpty]: Start isEmpty. Operand 5155 states and 24483 transitions. [2021-06-05 03:41:04,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:04,696 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:04,696 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:04,696 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable260 [2021-06-05 03:41:04,696 INFO L430 AbstractCegarLoop]: === Iteration 262 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:04,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:04,696 INFO L82 PathProgramCache]: Analyzing trace with hash 1074597831, now seen corresponding path program 257 times [2021-06-05 03:41:04,696 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:04,696 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795040898] [2021-06-05 03:41:04,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:04,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:04,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:04,829 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:04,829 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795040898] [2021-06-05 03:41:04,829 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795040898] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:04,829 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:04,829 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:04,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199051506] [2021-06-05 03:41:04,830 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:04,830 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:04,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:04,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:04,830 INFO L87 Difference]: Start difference. First operand 5155 states and 24483 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:04,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:04,939 INFO L93 Difference]: Finished difference Result 11090 states and 49480 transitions. [2021-06-05 03:41:04,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:04,939 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:04,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:04,965 INFO L225 Difference]: With dead ends: 11090 [2021-06-05 03:41:04,965 INFO L226 Difference]: Without dead ends: 10613 [2021-06-05 03:41:04,966 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 157.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:05,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10613 states. [2021-06-05 03:41:05,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10613 to 5203. [2021-06-05 03:41:05,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5203 states, 5202 states have (on average 4.740292195309497) internal successors, (24659), 5202 states have internal predecessors, (24659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:05,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5203 states to 5203 states and 24659 transitions. [2021-06-05 03:41:05,186 INFO L78 Accepts]: Start accepts. Automaton has 5203 states and 24659 transitions. Word has length 29 [2021-06-05 03:41:05,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:05,186 INFO L482 AbstractCegarLoop]: Abstraction has 5203 states and 24659 transitions. [2021-06-05 03:41:05,186 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:05,186 INFO L276 IsEmpty]: Start isEmpty. Operand 5203 states and 24659 transitions. [2021-06-05 03:41:05,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:05,194 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:05,195 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:05,195 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable261 [2021-06-05 03:41:05,195 INFO L430 AbstractCegarLoop]: === Iteration 263 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:05,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:05,195 INFO L82 PathProgramCache]: Analyzing trace with hash -2139306839, now seen corresponding path program 258 times [2021-06-05 03:41:05,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:05,195 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280339373] [2021-06-05 03:41:05,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:05,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:05,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:05,337 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:05,338 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280339373] [2021-06-05 03:41:05,338 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280339373] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:05,338 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:05,338 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:05,338 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756481255] [2021-06-05 03:41:05,338 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:05,338 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:05,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:05,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:05,338 INFO L87 Difference]: Start difference. First operand 5203 states and 24659 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:05,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:05,437 INFO L93 Difference]: Finished difference Result 11028 states and 49163 transitions. [2021-06-05 03:41:05,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:05,437 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:05,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:05,464 INFO L225 Difference]: With dead ends: 11028 [2021-06-05 03:41:05,465 INFO L226 Difference]: Without dead ends: 10549 [2021-06-05 03:41:05,465 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 150.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:05,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10549 states. [2021-06-05 03:41:05,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10549 to 5139. [2021-06-05 03:41:05,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5139 states, 5138 states have (on average 4.7541845075905025) internal successors, (24427), 5138 states have internal predecessors, (24427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:05,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5139 states to 5139 states and 24427 transitions. [2021-06-05 03:41:05,694 INFO L78 Accepts]: Start accepts. Automaton has 5139 states and 24427 transitions. Word has length 29 [2021-06-05 03:41:05,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:05,694 INFO L482 AbstractCegarLoop]: Abstraction has 5139 states and 24427 transitions. [2021-06-05 03:41:05,694 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:05,694 INFO L276 IsEmpty]: Start isEmpty. Operand 5139 states and 24427 transitions. [2021-06-05 03:41:05,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:05,703 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:05,703 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:05,703 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable262 [2021-06-05 03:41:05,703 INFO L430 AbstractCegarLoop]: === Iteration 264 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:05,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:05,703 INFO L82 PathProgramCache]: Analyzing trace with hash -612414427, now seen corresponding path program 259 times [2021-06-05 03:41:05,704 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:05,704 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260452073] [2021-06-05 03:41:05,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:05,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:05,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:05,827 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:05,827 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260452073] [2021-06-05 03:41:05,827 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260452073] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:05,827 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:05,827 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:05,828 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366596156] [2021-06-05 03:41:05,828 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:05,828 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:05,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:05,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:05,828 INFO L87 Difference]: Start difference. First operand 5139 states and 24427 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:05,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:05,929 INFO L93 Difference]: Finished difference Result 11687 states and 52040 transitions. [2021-06-05 03:41:05,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:05,929 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:05,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:05,956 INFO L225 Difference]: With dead ends: 11687 [2021-06-05 03:41:05,956 INFO L226 Difference]: Without dead ends: 11145 [2021-06-05 03:41:05,956 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 130.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:06,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11145 states. [2021-06-05 03:41:06,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11145 to 5338. [2021-06-05 03:41:06,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5338 states, 5337 states have (on average 4.724376990818812) internal successors, (25214), 5337 states have internal predecessors, (25214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:06,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5338 states to 5338 states and 25214 transitions. [2021-06-05 03:41:06,190 INFO L78 Accepts]: Start accepts. Automaton has 5338 states and 25214 transitions. Word has length 29 [2021-06-05 03:41:06,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:06,190 INFO L482 AbstractCegarLoop]: Abstraction has 5338 states and 25214 transitions. [2021-06-05 03:41:06,190 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:06,190 INFO L276 IsEmpty]: Start isEmpty. Operand 5338 states and 25214 transitions. [2021-06-05 03:41:06,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:06,199 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:06,199 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:06,199 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable263 [2021-06-05 03:41:06,199 INFO L430 AbstractCegarLoop]: === Iteration 265 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:06,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:06,199 INFO L82 PathProgramCache]: Analyzing trace with hash 468648199, now seen corresponding path program 260 times [2021-06-05 03:41:06,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:06,199 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450155280] [2021-06-05 03:41:06,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:06,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:06,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:06,329 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:06,329 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450155280] [2021-06-05 03:41:06,329 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450155280] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:06,329 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:06,329 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:06,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495163214] [2021-06-05 03:41:06,330 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:06,330 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:06,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:06,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:06,330 INFO L87 Difference]: Start difference. First operand 5338 states and 25214 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:06,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:06,444 INFO L93 Difference]: Finished difference Result 11622 states and 51671 transitions. [2021-06-05 03:41:06,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:06,444 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:06,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:06,471 INFO L225 Difference]: With dead ends: 11622 [2021-06-05 03:41:06,471 INFO L226 Difference]: Without dead ends: 11002 [2021-06-05 03:41:06,472 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 150.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:06,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11002 states. [2021-06-05 03:41:06,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11002 to 5195. [2021-06-05 03:41:06,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5195 states, 5194 states have (on average 4.74374278013092) internal successors, (24639), 5194 states have internal predecessors, (24639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:06,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5195 states to 5195 states and 24639 transitions. [2021-06-05 03:41:06,748 INFO L78 Accepts]: Start accepts. Automaton has 5195 states and 24639 transitions. Word has length 29 [2021-06-05 03:41:06,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:06,748 INFO L482 AbstractCegarLoop]: Abstraction has 5195 states and 24639 transitions. [2021-06-05 03:41:06,748 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:06,748 INFO L276 IsEmpty]: Start isEmpty. Operand 5195 states and 24639 transitions. [2021-06-05 03:41:06,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:06,757 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:06,757 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:06,757 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable264 [2021-06-05 03:41:06,757 INFO L430 AbstractCegarLoop]: === Iteration 266 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:06,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:06,758 INFO L82 PathProgramCache]: Analyzing trace with hash -1093316473, now seen corresponding path program 261 times [2021-06-05 03:41:06,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:06,758 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580971781] [2021-06-05 03:41:06,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:06,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:06,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:06,887 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:06,887 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580971781] [2021-06-05 03:41:06,887 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580971781] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:06,887 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:06,887 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:06,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676195922] [2021-06-05 03:41:06,887 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:06,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:06,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:06,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:06,888 INFO L87 Difference]: Start difference. First operand 5195 states and 24639 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:06,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:06,984 INFO L93 Difference]: Finished difference Result 11562 states and 51453 transitions. [2021-06-05 03:41:06,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:06,984 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:06,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:07,011 INFO L225 Difference]: With dead ends: 11562 [2021-06-05 03:41:07,011 INFO L226 Difference]: Without dead ends: 11020 [2021-06-05 03:41:07,011 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 135.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:07,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11020 states. [2021-06-05 03:41:07,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11020 to 5275. [2021-06-05 03:41:07,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5275 states, 5274 states have (on average 4.726393629124004) internal successors, (24927), 5274 states have internal predecessors, (24927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:07,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5275 states to 5275 states and 24927 transitions. [2021-06-05 03:41:07,235 INFO L78 Accepts]: Start accepts. Automaton has 5275 states and 24927 transitions. Word has length 29 [2021-06-05 03:41:07,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:07,235 INFO L482 AbstractCegarLoop]: Abstraction has 5275 states and 24927 transitions. [2021-06-05 03:41:07,235 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:07,235 INFO L276 IsEmpty]: Start isEmpty. Operand 5275 states and 24927 transitions. [2021-06-05 03:41:07,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:07,244 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:07,244 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:07,244 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable265 [2021-06-05 03:41:07,244 INFO L430 AbstractCegarLoop]: === Iteration 267 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:07,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:07,244 INFO L82 PathProgramCache]: Analyzing trace with hash 1513404551, now seen corresponding path program 262 times [2021-06-05 03:41:07,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:07,244 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951955493] [2021-06-05 03:41:07,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:07,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:07,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:07,372 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:07,372 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951955493] [2021-06-05 03:41:07,372 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951955493] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:07,372 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:07,372 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:07,372 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078602277] [2021-06-05 03:41:07,373 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:07,373 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:07,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:07,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:07,373 INFO L87 Difference]: Start difference. First operand 5275 states and 24927 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:07,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:07,472 INFO L93 Difference]: Finished difference Result 11435 states and 50846 transitions. [2021-06-05 03:41:07,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:07,473 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:07,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:07,500 INFO L225 Difference]: With dead ends: 11435 [2021-06-05 03:41:07,500 INFO L226 Difference]: Without dead ends: 10940 [2021-06-05 03:41:07,500 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 134.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:07,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10940 states. [2021-06-05 03:41:07,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10940 to 5195. [2021-06-05 03:41:07,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5195 states, 5194 states have (on average 4.736041586445899) internal successors, (24599), 5194 states have internal predecessors, (24599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:07,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5195 states to 5195 states and 24599 transitions. [2021-06-05 03:41:07,725 INFO L78 Accepts]: Start accepts. Automaton has 5195 states and 24599 transitions. Word has length 29 [2021-06-05 03:41:07,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:07,725 INFO L482 AbstractCegarLoop]: Abstraction has 5195 states and 24599 transitions. [2021-06-05 03:41:07,725 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:07,725 INFO L276 IsEmpty]: Start isEmpty. Operand 5195 states and 24599 transitions. [2021-06-05 03:41:07,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:07,734 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:07,734 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:07,734 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable266 [2021-06-05 03:41:07,734 INFO L430 AbstractCegarLoop]: === Iteration 268 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:07,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:07,734 INFO L82 PathProgramCache]: Analyzing trace with hash -705311511, now seen corresponding path program 263 times [2021-06-05 03:41:07,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:07,734 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152291797] [2021-06-05 03:41:07,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:07,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:07,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:07,860 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:07,860 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152291797] [2021-06-05 03:41:07,860 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152291797] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:07,860 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:07,861 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:07,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049330983] [2021-06-05 03:41:07,861 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:07,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:07,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:07,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:07,861 INFO L87 Difference]: Start difference. First operand 5195 states and 24599 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:07,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:07,978 INFO L93 Difference]: Finished difference Result 11400 states and 50753 transitions. [2021-06-05 03:41:07,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:07,979 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:07,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:08,005 INFO L225 Difference]: With dead ends: 11400 [2021-06-05 03:41:08,005 INFO L226 Difference]: Without dead ends: 10923 [2021-06-05 03:41:08,006 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 148.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:08,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10923 states. [2021-06-05 03:41:08,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10923 to 5243. [2021-06-05 03:41:08,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5243 states, 5242 states have (on average 4.726249523082793) internal successors, (24775), 5242 states have internal predecessors, (24775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:08,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5243 states to 5243 states and 24775 transitions. [2021-06-05 03:41:08,231 INFO L78 Accepts]: Start accepts. Automaton has 5243 states and 24775 transitions. Word has length 29 [2021-06-05 03:41:08,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:08,232 INFO L482 AbstractCegarLoop]: Abstraction has 5243 states and 24775 transitions. [2021-06-05 03:41:08,232 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:08,232 INFO L276 IsEmpty]: Start isEmpty. Operand 5243 states and 24775 transitions. [2021-06-05 03:41:08,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:08,240 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:08,240 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:08,240 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable267 [2021-06-05 03:41:08,240 INFO L430 AbstractCegarLoop]: === Iteration 269 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:08,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:08,241 INFO L82 PathProgramCache]: Analyzing trace with hash -1552108473, now seen corresponding path program 264 times [2021-06-05 03:41:08,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:08,241 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966957242] [2021-06-05 03:41:08,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:08,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:08,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:08,368 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:08,368 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966957242] [2021-06-05 03:41:08,368 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966957242] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:08,368 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:08,368 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:08,368 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292384098] [2021-06-05 03:41:08,369 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:08,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:08,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:08,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:08,369 INFO L87 Difference]: Start difference. First operand 5243 states and 24775 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:08,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:08,471 INFO L93 Difference]: Finished difference Result 11338 states and 50436 transitions. [2021-06-05 03:41:08,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:08,472 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:08,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:08,499 INFO L225 Difference]: With dead ends: 11338 [2021-06-05 03:41:08,499 INFO L226 Difference]: Without dead ends: 10795 [2021-06-05 03:41:08,499 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 134.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:08,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10795 states. [2021-06-05 03:41:08,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10795 to 5115. [2021-06-05 03:41:08,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5115 states, 5114 states have (on average 4.759288228392648) internal successors, (24339), 5114 states have internal predecessors, (24339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:08,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5115 states to 5115 states and 24339 transitions. [2021-06-05 03:41:08,725 INFO L78 Accepts]: Start accepts. Automaton has 5115 states and 24339 transitions. Word has length 29 [2021-06-05 03:41:08,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:08,726 INFO L482 AbstractCegarLoop]: Abstraction has 5115 states and 24339 transitions. [2021-06-05 03:41:08,726 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:08,726 INFO L276 IsEmpty]: Start isEmpty. Operand 5115 states and 24339 transitions. [2021-06-05 03:41:08,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:08,734 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:08,734 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:08,734 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable268 [2021-06-05 03:41:08,735 INFO L430 AbstractCegarLoop]: === Iteration 270 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:08,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:08,735 INFO L82 PathProgramCache]: Analyzing trace with hash 1183232459, now seen corresponding path program 265 times [2021-06-05 03:41:08,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:08,735 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813003498] [2021-06-05 03:41:08,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:08,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:08,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:08,873 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:08,873 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813003498] [2021-06-05 03:41:08,873 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813003498] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:08,873 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:08,873 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:08,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006538580] [2021-06-05 03:41:08,873 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:08,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:08,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:08,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:08,874 INFO L87 Difference]: Start difference. First operand 5115 states and 24339 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:08,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:08,992 INFO L93 Difference]: Finished difference Result 11597 states and 51819 transitions. [2021-06-05 03:41:08,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:08,993 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:08,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:09,020 INFO L225 Difference]: With dead ends: 11597 [2021-06-05 03:41:09,021 INFO L226 Difference]: Without dead ends: 11182 [2021-06-05 03:41:09,021 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 151.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:09,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11182 states. [2021-06-05 03:41:09,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11182 to 5279. [2021-06-05 03:41:09,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5279 states, 5278 states have (on average 4.750852595680182) internal successors, (25075), 5278 states have internal predecessors, (25075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:09,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5279 states to 5279 states and 25075 transitions. [2021-06-05 03:41:09,251 INFO L78 Accepts]: Start accepts. Automaton has 5279 states and 25075 transitions. Word has length 29 [2021-06-05 03:41:09,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:09,251 INFO L482 AbstractCegarLoop]: Abstraction has 5279 states and 25075 transitions. [2021-06-05 03:41:09,251 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:09,251 INFO L276 IsEmpty]: Start isEmpty. Operand 5279 states and 25075 transitions. [2021-06-05 03:41:09,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:09,260 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:09,260 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:09,260 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable269 [2021-06-05 03:41:09,260 INFO L430 AbstractCegarLoop]: === Iteration 271 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:09,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:09,260 INFO L82 PathProgramCache]: Analyzing trace with hash -1356914229, now seen corresponding path program 266 times [2021-06-05 03:41:09,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:09,260 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038782168] [2021-06-05 03:41:09,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:09,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:09,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:09,389 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:09,389 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038782168] [2021-06-05 03:41:09,389 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038782168] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:09,389 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:09,389 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:09,389 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352965651] [2021-06-05 03:41:09,389 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:09,389 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:09,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:09,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:09,389 INFO L87 Difference]: Start difference. First operand 5279 states and 25075 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:09,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:09,493 INFO L93 Difference]: Finished difference Result 11724 states and 52298 transitions. [2021-06-05 03:41:09,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:09,493 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:09,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:09,520 INFO L225 Difference]: With dead ends: 11724 [2021-06-05 03:41:09,520 INFO L226 Difference]: Without dead ends: 11102 [2021-06-05 03:41:09,521 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 135.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:09,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11102 states. [2021-06-05 03:41:09,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11102 to 5199. [2021-06-05 03:41:09,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5199 states, 5198 states have (on average 4.754713351288958) internal successors, (24715), 5198 states have internal predecessors, (24715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:09,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5199 states to 5199 states and 24715 transitions. [2021-06-05 03:41:09,747 INFO L78 Accepts]: Start accepts. Automaton has 5199 states and 24715 transitions. Word has length 29 [2021-06-05 03:41:09,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:09,747 INFO L482 AbstractCegarLoop]: Abstraction has 5199 states and 24715 transitions. [2021-06-05 03:41:09,747 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:09,747 INFO L276 IsEmpty]: Start isEmpty. Operand 5199 states and 24715 transitions. [2021-06-05 03:41:09,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:09,755 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:09,755 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:09,755 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable270 [2021-06-05 03:41:09,756 INFO L430 AbstractCegarLoop]: === Iteration 272 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:09,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:09,756 INFO L82 PathProgramCache]: Analyzing trace with hash 963430603, now seen corresponding path program 267 times [2021-06-05 03:41:09,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:09,756 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487920763] [2021-06-05 03:41:09,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:09,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:09,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:09,883 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:09,883 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487920763] [2021-06-05 03:41:09,883 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487920763] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:09,883 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:09,883 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:09,883 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519570291] [2021-06-05 03:41:09,883 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:09,883 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:09,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:09,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:09,884 INFO L87 Difference]: Start difference. First operand 5199 states and 24715 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:09,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:09,998 INFO L93 Difference]: Finished difference Result 11500 states and 51377 transitions. [2021-06-05 03:41:09,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:09,998 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:09,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:10,025 INFO L225 Difference]: With dead ends: 11500 [2021-06-05 03:41:10,025 INFO L226 Difference]: Without dead ends: 11085 [2021-06-05 03:41:10,025 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 151.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:10,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11085 states. [2021-06-05 03:41:10,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11085 to 5247. [2021-06-05 03:41:10,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5247 states, 5246 states have (on average 4.744757910789173) internal successors, (24891), 5246 states have internal predecessors, (24891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:10,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5247 states to 5247 states and 24891 transitions. [2021-06-05 03:41:10,253 INFO L78 Accepts]: Start accepts. Automaton has 5247 states and 24891 transitions. Word has length 29 [2021-06-05 03:41:10,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:10,253 INFO L482 AbstractCegarLoop]: Abstraction has 5247 states and 24891 transitions. [2021-06-05 03:41:10,253 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:10,253 INFO L276 IsEmpty]: Start isEmpty. Operand 5247 states and 24891 transitions. [2021-06-05 03:41:10,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:10,262 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:10,262 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:10,262 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable271 [2021-06-05 03:41:10,262 INFO L430 AbstractCegarLoop]: === Iteration 273 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:10,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:10,262 INFO L82 PathProgramCache]: Analyzing trace with hash 1680093549, now seen corresponding path program 268 times [2021-06-05 03:41:10,262 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:10,262 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211277485] [2021-06-05 03:41:10,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:10,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:10,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:10,396 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:10,396 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211277485] [2021-06-05 03:41:10,396 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211277485] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:10,396 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:10,396 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:10,397 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155933764] [2021-06-05 03:41:10,397 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:10,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:10,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:10,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:10,397 INFO L87 Difference]: Start difference. First operand 5247 states and 24891 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:10,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:10,511 INFO L93 Difference]: Finished difference Result 11562 states and 51598 transitions. [2021-06-05 03:41:10,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:10,512 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:10,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:10,539 INFO L225 Difference]: With dead ends: 11562 [2021-06-05 03:41:10,539 INFO L226 Difference]: Without dead ends: 11037 [2021-06-05 03:41:10,539 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 154.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:10,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11037 states. [2021-06-05 03:41:10,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11037 to 5199. [2021-06-05 03:41:10,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5199 states, 5198 states have (on average 4.750096190842632) internal successors, (24691), 5198 states have internal predecessors, (24691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:10,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5199 states to 5199 states and 24691 transitions. [2021-06-05 03:41:10,765 INFO L78 Accepts]: Start accepts. Automaton has 5199 states and 24691 transitions. Word has length 29 [2021-06-05 03:41:10,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:10,765 INFO L482 AbstractCegarLoop]: Abstraction has 5199 states and 24691 transitions. [2021-06-05 03:41:10,765 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:10,765 INFO L276 IsEmpty]: Start isEmpty. Operand 5199 states and 24691 transitions. [2021-06-05 03:41:10,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:10,774 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:10,774 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:10,774 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable272 [2021-06-05 03:41:10,774 INFO L430 AbstractCegarLoop]: === Iteration 274 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:10,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:10,775 INFO L82 PathProgramCache]: Analyzing trace with hash -531648147, now seen corresponding path program 269 times [2021-06-05 03:41:10,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:10,775 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679292579] [2021-06-05 03:41:10,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:10,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:10,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:10,894 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:10,894 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679292579] [2021-06-05 03:41:10,894 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679292579] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:10,894 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:10,894 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:10,894 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925764406] [2021-06-05 03:41:10,894 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:10,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:10,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:10,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:10,895 INFO L87 Difference]: Start difference. First operand 5199 states and 24691 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:11,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:11,021 INFO L93 Difference]: Finished difference Result 11849 states and 52813 transitions. [2021-06-05 03:41:11,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:11,021 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:11,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:11,049 INFO L225 Difference]: With dead ends: 11849 [2021-06-05 03:41:11,049 INFO L226 Difference]: Without dead ends: 11307 [2021-06-05 03:41:11,049 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 131.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:11,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11307 states. [2021-06-05 03:41:11,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11307 to 5342. [2021-06-05 03:41:11,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5342 states, 5341 states have (on average 4.7200898708107095) internal successors, (25210), 5341 states have internal predecessors, (25210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:11,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5342 states to 5342 states and 25210 transitions. [2021-06-05 03:41:11,277 INFO L78 Accepts]: Start accepts. Automaton has 5342 states and 25210 transitions. Word has length 29 [2021-06-05 03:41:11,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:11,277 INFO L482 AbstractCegarLoop]: Abstraction has 5342 states and 25210 transitions. [2021-06-05 03:41:11,277 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:11,277 INFO L276 IsEmpty]: Start isEmpty. Operand 5342 states and 25210 transitions. [2021-06-05 03:41:11,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:11,286 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:11,286 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:11,286 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable273 [2021-06-05 03:41:11,286 INFO L430 AbstractCegarLoop]: === Iteration 275 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:11,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:11,286 INFO L82 PathProgramCache]: Analyzing trace with hash 1719982155, now seen corresponding path program 270 times [2021-06-05 03:41:11,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:11,286 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417960668] [2021-06-05 03:41:11,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:11,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:11,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:11,429 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:11,429 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417960668] [2021-06-05 03:41:11,429 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417960668] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:11,429 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:11,429 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:11,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281566915] [2021-06-05 03:41:11,429 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:11,429 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:11,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:11,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:11,430 INFO L87 Difference]: Start difference. First operand 5342 states and 25210 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:11,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:11,543 INFO L93 Difference]: Finished difference Result 11784 states and 52444 transitions. [2021-06-05 03:41:11,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:11,543 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:11,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:11,571 INFO L225 Difference]: With dead ends: 11784 [2021-06-05 03:41:11,571 INFO L226 Difference]: Without dead ends: 11108 [2021-06-05 03:41:11,571 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 161.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:11,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11108 states. [2021-06-05 03:41:11,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11108 to 5143. [2021-06-05 03:41:11,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.756709451575262) internal successors, (24459), 5142 states have internal predecessors, (24459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:11,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24459 transitions. [2021-06-05 03:41:11,794 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24459 transitions. Word has length 29 [2021-06-05 03:41:11,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:11,794 INFO L482 AbstractCegarLoop]: Abstraction has 5143 states and 24459 transitions. [2021-06-05 03:41:11,794 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:11,794 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24459 transitions. [2021-06-05 03:41:11,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:11,803 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:11,803 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:11,803 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable274 [2021-06-05 03:41:11,803 INFO L430 AbstractCegarLoop]: === Iteration 276 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:11,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:11,803 INFO L82 PathProgramCache]: Analyzing trace with hash 2057954541, now seen corresponding path program 271 times [2021-06-05 03:41:11,803 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:11,803 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25896737] [2021-06-05 03:41:11,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:11,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:11,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:11,929 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:11,929 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25896737] [2021-06-05 03:41:11,929 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25896737] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:11,929 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:11,929 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:11,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603005542] [2021-06-05 03:41:11,929 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:11,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:11,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:11,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:11,929 INFO L87 Difference]: Start difference. First operand 5143 states and 24459 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:12,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:12,044 INFO L93 Difference]: Finished difference Result 11540 states and 51588 transitions. [2021-06-05 03:41:12,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:12,044 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:12,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:12,071 INFO L225 Difference]: With dead ends: 11540 [2021-06-05 03:41:12,071 INFO L226 Difference]: Without dead ends: 11125 [2021-06-05 03:41:12,071 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 149.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:12,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11125 states. [2021-06-05 03:41:12,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11125 to 5263. [2021-06-05 03:41:12,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5263 states, 5262 states have (on average 4.747814519194223) internal successors, (24983), 5262 states have internal predecessors, (24983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:12,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5263 states to 5263 states and 24983 transitions. [2021-06-05 03:41:12,298 INFO L78 Accepts]: Start accepts. Automaton has 5263 states and 24983 transitions. Word has length 29 [2021-06-05 03:41:12,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:12,299 INFO L482 AbstractCegarLoop]: Abstraction has 5263 states and 24983 transitions. [2021-06-05 03:41:12,299 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:12,299 INFO L276 IsEmpty]: Start isEmpty. Operand 5263 states and 24983 transitions. [2021-06-05 03:41:12,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:12,307 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:12,308 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:12,308 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable275 [2021-06-05 03:41:12,308 INFO L430 AbstractCegarLoop]: === Iteration 277 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:12,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:12,308 INFO L82 PathProgramCache]: Analyzing trace with hash -482192147, now seen corresponding path program 272 times [2021-06-05 03:41:12,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:12,308 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250617676] [2021-06-05 03:41:12,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:12,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:12,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:12,435 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:12,435 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250617676] [2021-06-05 03:41:12,435 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250617676] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:12,435 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:12,435 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:12,435 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096414620] [2021-06-05 03:41:12,435 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:12,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:12,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:12,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:12,437 INFO L87 Difference]: Start difference. First operand 5263 states and 24983 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:12,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:12,536 INFO L93 Difference]: Finished difference Result 11667 states and 52067 transitions. [2021-06-05 03:41:12,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:12,536 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:12,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:12,565 INFO L225 Difference]: With dead ends: 11667 [2021-06-05 03:41:12,566 INFO L226 Difference]: Without dead ends: 11045 [2021-06-05 03:41:12,566 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 134.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:12,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11045 states. [2021-06-05 03:41:12,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11045 to 5183. [2021-06-05 03:41:12,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5183 states, 5182 states have (on average 4.7516402933230415) internal successors, (24623), 5182 states have internal predecessors, (24623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:12,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5183 states to 5183 states and 24623 transitions. [2021-06-05 03:41:12,795 INFO L78 Accepts]: Start accepts. Automaton has 5183 states and 24623 transitions. Word has length 29 [2021-06-05 03:41:12,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:12,795 INFO L482 AbstractCegarLoop]: Abstraction has 5183 states and 24623 transitions. [2021-06-05 03:41:12,795 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:12,795 INFO L276 IsEmpty]: Start isEmpty. Operand 5183 states and 24623 transitions. [2021-06-05 03:41:12,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:12,803 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:12,804 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:12,804 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable276 [2021-06-05 03:41:12,804 INFO L430 AbstractCegarLoop]: === Iteration 278 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:12,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:12,804 INFO L82 PathProgramCache]: Analyzing trace with hash -1801840373, now seen corresponding path program 273 times [2021-06-05 03:41:12,804 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:12,804 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229867578] [2021-06-05 03:41:12,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:12,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:12,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:12,915 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:12,915 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229867578] [2021-06-05 03:41:12,915 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229867578] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:12,915 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:12,915 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:12,915 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838560155] [2021-06-05 03:41:12,915 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:12,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:12,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:12,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:12,915 INFO L87 Difference]: Start difference. First operand 5183 states and 24623 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:13,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:13,039 INFO L93 Difference]: Finished difference Result 11437 states and 51129 transitions. [2021-06-05 03:41:13,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:13,040 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:13,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:13,067 INFO L225 Difference]: With dead ends: 11437 [2021-06-05 03:41:13,067 INFO L226 Difference]: Without dead ends: 11022 [2021-06-05 03:41:13,068 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 134.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:13,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11022 states. [2021-06-05 03:41:13,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11022 to 5231. [2021-06-05 03:41:13,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5231 states, 5230 states have (on average 4.7416826003824095) internal successors, (24799), 5230 states have internal predecessors, (24799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:13,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5231 states to 5231 states and 24799 transitions. [2021-06-05 03:41:13,295 INFO L78 Accepts]: Start accepts. Automaton has 5231 states and 24799 transitions. Word has length 29 [2021-06-05 03:41:13,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:13,295 INFO L482 AbstractCegarLoop]: Abstraction has 5231 states and 24799 transitions. [2021-06-05 03:41:13,295 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:13,295 INFO L276 IsEmpty]: Start isEmpty. Operand 5231 states and 24799 transitions. [2021-06-05 03:41:13,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:13,304 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:13,304 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:13,304 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable277 [2021-06-05 03:41:13,304 INFO L430 AbstractCegarLoop]: === Iteration 279 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:13,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:13,304 INFO L82 PathProgramCache]: Analyzing trace with hash 1362774061, now seen corresponding path program 274 times [2021-06-05 03:41:13,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:13,304 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821824173] [2021-06-05 03:41:13,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:13,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:13,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:13,414 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:13,415 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821824173] [2021-06-05 03:41:13,415 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821824173] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:13,415 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:13,415 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:13,415 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041830122] [2021-06-05 03:41:13,415 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:13,415 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:13,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:13,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:13,415 INFO L87 Difference]: Start difference. First operand 5231 states and 24799 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:13,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:13,532 INFO L93 Difference]: Finished difference Result 11493 states and 51333 transitions. [2021-06-05 03:41:13,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:13,532 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:13,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:13,559 INFO L225 Difference]: With dead ends: 11493 [2021-06-05 03:41:13,559 INFO L226 Difference]: Without dead ends: 10974 [2021-06-05 03:41:13,559 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 135.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:13,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10974 states. [2021-06-05 03:41:13,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10974 to 5183. [2021-06-05 03:41:13,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5183 states, 5182 states have (on average 4.747008876881513) internal successors, (24599), 5182 states have internal predecessors, (24599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:13,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5183 states to 5183 states and 24599 transitions. [2021-06-05 03:41:13,782 INFO L78 Accepts]: Start accepts. Automaton has 5183 states and 24599 transitions. Word has length 29 [2021-06-05 03:41:13,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:13,782 INFO L482 AbstractCegarLoop]: Abstraction has 5183 states and 24599 transitions. [2021-06-05 03:41:13,782 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:13,782 INFO L276 IsEmpty]: Start isEmpty. Operand 5183 states and 24599 transitions. [2021-06-05 03:41:13,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:13,791 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:13,791 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:13,791 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable278 [2021-06-05 03:41:13,791 INFO L430 AbstractCegarLoop]: === Iteration 280 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:13,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:13,791 INFO L82 PathProgramCache]: Analyzing trace with hash 1429403693, now seen corresponding path program 275 times [2021-06-05 03:41:13,791 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:13,791 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115884077] [2021-06-05 03:41:13,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:13,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:13,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:13,916 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:13,916 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115884077] [2021-06-05 03:41:13,916 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115884077] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:13,916 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:13,916 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:13,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904444505] [2021-06-05 03:41:13,916 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:13,916 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:13,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:13,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:13,916 INFO L87 Difference]: Start difference. First operand 5183 states and 24599 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:14,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:14,015 INFO L93 Difference]: Finished difference Result 11751 states and 52443 transitions. [2021-06-05 03:41:14,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:14,015 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:14,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:14,042 INFO L225 Difference]: With dead ends: 11751 [2021-06-05 03:41:14,042 INFO L226 Difference]: Without dead ends: 11209 [2021-06-05 03:41:14,043 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 132.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:14,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11209 states. [2021-06-05 03:41:14,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11209 to 5291. [2021-06-05 03:41:14,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5291 states, 5290 states have (on average 4.725708884688091) internal successors, (24999), 5290 states have internal predecessors, (24999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:14,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5291 states to 5291 states and 24999 transitions. [2021-06-05 03:41:14,268 INFO L78 Accepts]: Start accepts. Automaton has 5291 states and 24999 transitions. Word has length 29 [2021-06-05 03:41:14,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:14,268 INFO L482 AbstractCegarLoop]: Abstraction has 5291 states and 24999 transitions. [2021-06-05 03:41:14,268 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:14,268 INFO L276 IsEmpty]: Start isEmpty. Operand 5291 states and 24999 transitions. [2021-06-05 03:41:14,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:14,277 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:14,277 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:14,277 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable279 [2021-06-05 03:41:14,277 INFO L430 AbstractCegarLoop]: === Iteration 281 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:14,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:14,277 INFO L82 PathProgramCache]: Analyzing trace with hash 1339644043, now seen corresponding path program 276 times [2021-06-05 03:41:14,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:14,278 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253419132] [2021-06-05 03:41:14,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:14,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:14,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:14,401 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:14,401 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253419132] [2021-06-05 03:41:14,401 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253419132] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:14,401 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:14,401 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:14,401 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851685449] [2021-06-05 03:41:14,401 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:14,401 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:14,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:14,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:14,401 INFO L87 Difference]: Start difference. First operand 5291 states and 24999 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:14,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:14,534 INFO L93 Difference]: Finished difference Result 11680 states and 52060 transitions. [2021-06-05 03:41:14,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:14,534 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:14,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:14,561 INFO L225 Difference]: With dead ends: 11680 [2021-06-05 03:41:14,561 INFO L226 Difference]: Without dead ends: 11061 [2021-06-05 03:41:14,561 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 147.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:14,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11061 states. [2021-06-05 03:41:14,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11061 to 5143. [2021-06-05 03:41:14,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.752819914430183) internal successors, (24439), 5142 states have internal predecessors, (24439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:14,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24439 transitions. [2021-06-05 03:41:14,786 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24439 transitions. Word has length 29 [2021-06-05 03:41:14,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:14,786 INFO L482 AbstractCegarLoop]: Abstraction has 5143 states and 24439 transitions. [2021-06-05 03:41:14,786 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:14,786 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24439 transitions. [2021-06-05 03:41:14,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:14,795 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:14,795 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:14,795 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable280 [2021-06-05 03:41:14,795 INFO L430 AbstractCegarLoop]: === Iteration 282 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:14,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:14,795 INFO L82 PathProgramCache]: Analyzing trace with hash -985972725, now seen corresponding path program 277 times [2021-06-05 03:41:14,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:14,795 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425729195] [2021-06-05 03:41:14,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:14,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:14,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:14,910 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:14,910 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425729195] [2021-06-05 03:41:14,910 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425729195] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:14,910 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:14,910 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:14,910 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762945591] [2021-06-05 03:41:14,910 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:14,910 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:14,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:14,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:14,910 INFO L87 Difference]: Start difference. First operand 5143 states and 24439 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:15,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:15,027 INFO L93 Difference]: Finished difference Result 11298 states and 50540 transitions. [2021-06-05 03:41:15,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:15,027 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:15,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:15,054 INFO L225 Difference]: With dead ends: 11298 [2021-06-05 03:41:15,054 INFO L226 Difference]: Without dead ends: 10883 [2021-06-05 03:41:15,054 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 139.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:15,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10883 states. [2021-06-05 03:41:15,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10883 to 5215. [2021-06-05 03:41:15,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5215 states, 5214 states have (on average 4.744725738396625) internal successors, (24739), 5214 states have internal predecessors, (24739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:15,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5215 states to 5215 states and 24739 transitions. [2021-06-05 03:41:15,279 INFO L78 Accepts]: Start accepts. Automaton has 5215 states and 24739 transitions. Word has length 29 [2021-06-05 03:41:15,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:15,279 INFO L482 AbstractCegarLoop]: Abstraction has 5215 states and 24739 transitions. [2021-06-05 03:41:15,279 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:15,279 INFO L276 IsEmpty]: Start isEmpty. Operand 5215 states and 24739 transitions. [2021-06-05 03:41:15,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:15,288 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:15,288 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:15,288 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable281 [2021-06-05 03:41:15,288 INFO L430 AbstractCegarLoop]: === Iteration 283 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:15,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:15,288 INFO L82 PathProgramCache]: Analyzing trace with hash -269309779, now seen corresponding path program 278 times [2021-06-05 03:41:15,288 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:15,288 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042273486] [2021-06-05 03:41:15,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:15,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:15,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:15,403 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:15,403 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042273486] [2021-06-05 03:41:15,403 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042273486] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:15,403 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:15,403 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:15,403 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342439588] [2021-06-05 03:41:15,403 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:15,403 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:15,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:15,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:15,404 INFO L87 Difference]: Start difference. First operand 5215 states and 24739 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:15,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:15,534 INFO L93 Difference]: Finished difference Result 11360 states and 50761 transitions. [2021-06-05 03:41:15,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:15,534 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:15,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:15,560 INFO L225 Difference]: With dead ends: 11360 [2021-06-05 03:41:15,560 INFO L226 Difference]: Without dead ends: 10835 [2021-06-05 03:41:15,561 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 139.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:15,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10835 states. [2021-06-05 03:41:15,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10835 to 5167. [2021-06-05 03:41:15,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5167 states, 5166 states have (on average 4.750096786682152) internal successors, (24539), 5166 states have internal predecessors, (24539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:15,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 24539 transitions. [2021-06-05 03:41:15,783 INFO L78 Accepts]: Start accepts. Automaton has 5167 states and 24539 transitions. Word has length 29 [2021-06-05 03:41:15,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:15,783 INFO L482 AbstractCegarLoop]: Abstraction has 5167 states and 24539 transitions. [2021-06-05 03:41:15,783 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:15,783 INFO L276 IsEmpty]: Start isEmpty. Operand 5167 states and 24539 transitions. [2021-06-05 03:41:15,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:15,843 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:15,843 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:15,843 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable282 [2021-06-05 03:41:15,843 INFO L430 AbstractCegarLoop]: === Iteration 284 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:15,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:15,844 INFO L82 PathProgramCache]: Analyzing trace with hash 1441977197, now seen corresponding path program 279 times [2021-06-05 03:41:15,844 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:15,844 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038360431] [2021-06-05 03:41:15,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:15,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:15,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:15,943 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:15,943 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038360431] [2021-06-05 03:41:15,943 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038360431] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:15,943 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:15,943 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:15,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477470010] [2021-06-05 03:41:15,943 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:15,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:15,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:15,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:15,943 INFO L87 Difference]: Start difference. First operand 5167 states and 24539 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:16,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:16,053 INFO L93 Difference]: Finished difference Result 11292 states and 50499 transitions. [2021-06-05 03:41:16,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:16,054 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:16,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:16,080 INFO L225 Difference]: With dead ends: 11292 [2021-06-05 03:41:16,080 INFO L226 Difference]: Without dead ends: 10877 [2021-06-05 03:41:16,080 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 123.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:16,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10877 states. [2021-06-05 03:41:16,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10877 to 5215. [2021-06-05 03:41:16,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5215 states, 5214 states have (on average 4.740122746451861) internal successors, (24715), 5214 states have internal predecessors, (24715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:16,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5215 states to 5215 states and 24715 transitions. [2021-06-05 03:41:16,303 INFO L78 Accepts]: Start accepts. Automaton has 5215 states and 24715 transitions. Word has length 29 [2021-06-05 03:41:16,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:16,303 INFO L482 AbstractCegarLoop]: Abstraction has 5215 states and 24715 transitions. [2021-06-05 03:41:16,303 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:16,303 INFO L276 IsEmpty]: Start isEmpty. Operand 5215 states and 24715 transitions. [2021-06-05 03:41:16,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:16,312 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:16,312 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:16,312 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable283 [2021-06-05 03:41:16,312 INFO L430 AbstractCegarLoop]: === Iteration 285 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:16,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:16,312 INFO L82 PathProgramCache]: Analyzing trace with hash 586587949, now seen corresponding path program 280 times [2021-06-05 03:41:16,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:16,312 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455555269] [2021-06-05 03:41:16,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:16,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:16,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:16,411 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:16,411 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455555269] [2021-06-05 03:41:16,411 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455555269] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:16,412 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:16,412 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:16,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749620227] [2021-06-05 03:41:16,412 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:16,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:16,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:16,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:16,412 INFO L87 Difference]: Start difference. First operand 5215 states and 24715 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:16,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:16,524 INFO L93 Difference]: Finished difference Result 11348 states and 50703 transitions. [2021-06-05 03:41:16,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:16,524 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:16,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:16,550 INFO L225 Difference]: With dead ends: 11348 [2021-06-05 03:41:16,550 INFO L226 Difference]: Without dead ends: 10829 [2021-06-05 03:41:16,551 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 123.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:16,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10829 states. [2021-06-05 03:41:16,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10829 to 5167. [2021-06-05 03:41:16,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5167 states, 5166 states have (on average 4.745451025938831) internal successors, (24515), 5166 states have internal predecessors, (24515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:16,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 24515 transitions. [2021-06-05 03:41:16,771 INFO L78 Accepts]: Start accepts. Automaton has 5167 states and 24515 transitions. Word has length 29 [2021-06-05 03:41:16,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:16,771 INFO L482 AbstractCegarLoop]: Abstraction has 5167 states and 24515 transitions. [2021-06-05 03:41:16,771 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:16,771 INFO L276 IsEmpty]: Start isEmpty. Operand 5167 states and 24515 transitions. [2021-06-05 03:41:16,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:16,780 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:16,780 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:16,780 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable284 [2021-06-05 03:41:16,780 INFO L430 AbstractCegarLoop]: === Iteration 286 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:16,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:16,780 INFO L82 PathProgramCache]: Analyzing trace with hash 88315727, now seen corresponding path program 281 times [2021-06-05 03:41:16,780 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:16,780 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423133767] [2021-06-05 03:41:16,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:16,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:16,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:16,890 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:16,890 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423133767] [2021-06-05 03:41:16,890 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423133767] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:16,890 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:16,890 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:16,891 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263785674] [2021-06-05 03:41:16,891 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:16,891 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:16,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:16,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:16,891 INFO L87 Difference]: Start difference. First operand 5167 states and 24515 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:16,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:16,999 INFO L93 Difference]: Finished difference Result 11444 states and 51153 transitions. [2021-06-05 03:41:16,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:17,000 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:17,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:17,026 INFO L225 Difference]: With dead ends: 11444 [2021-06-05 03:41:17,026 INFO L226 Difference]: Without dead ends: 10967 [2021-06-05 03:41:17,026 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 130.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:17,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10967 states. [2021-06-05 03:41:17,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10967 to 5243. [2021-06-05 03:41:17,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5243 states, 5242 states have (on average 4.731590995803129) internal successors, (24803), 5242 states have internal predecessors, (24803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:17,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5243 states to 5243 states and 24803 transitions. [2021-06-05 03:41:17,249 INFO L78 Accepts]: Start accepts. Automaton has 5243 states and 24803 transitions. Word has length 29 [2021-06-05 03:41:17,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:17,249 INFO L482 AbstractCegarLoop]: Abstraction has 5243 states and 24803 transitions. [2021-06-05 03:41:17,249 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:17,249 INFO L276 IsEmpty]: Start isEmpty. Operand 5243 states and 24803 transitions. [2021-06-05 03:41:17,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:17,258 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:17,258 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:17,258 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable285 [2021-06-05 03:41:17,258 INFO L430 AbstractCegarLoop]: === Iteration 287 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:17,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:17,258 INFO L82 PathProgramCache]: Analyzing trace with hash -652636371, now seen corresponding path program 282 times [2021-06-05 03:41:17,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:17,258 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226643440] [2021-06-05 03:41:17,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:17,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:17,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:17,358 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:17,358 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226643440] [2021-06-05 03:41:17,358 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226643440] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:17,358 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:17,358 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:17,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374568267] [2021-06-05 03:41:17,359 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:17,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:17,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:17,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:17,359 INFO L87 Difference]: Start difference. First operand 5243 states and 24803 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:17,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:17,481 INFO L93 Difference]: Finished difference Result 11438 states and 51060 transitions. [2021-06-05 03:41:17,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:17,482 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:17,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:17,508 INFO L225 Difference]: With dead ends: 11438 [2021-06-05 03:41:17,508 INFO L226 Difference]: Without dead ends: 10867 [2021-06-05 03:41:17,508 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 125.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:17,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10867 states. [2021-06-05 03:41:17,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10867 to 5143. [2021-06-05 03:41:17,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.750486192143135) internal successors, (24427), 5142 states have internal predecessors, (24427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:17,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24427 transitions. [2021-06-05 03:41:17,732 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24427 transitions. Word has length 29 [2021-06-05 03:41:17,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:17,732 INFO L482 AbstractCegarLoop]: Abstraction has 5143 states and 24427 transitions. [2021-06-05 03:41:17,732 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:17,732 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24427 transitions. [2021-06-05 03:41:17,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:17,740 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:17,740 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:17,741 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable286 [2021-06-05 03:41:17,741 INFO L430 AbstractCegarLoop]: === Iteration 288 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:17,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:17,741 INFO L82 PathProgramCache]: Analyzing trace with hash -977316017, now seen corresponding path program 283 times [2021-06-05 03:41:17,741 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:17,741 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190161835] [2021-06-05 03:41:17,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:17,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:17,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:17,845 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:17,845 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190161835] [2021-06-05 03:41:17,845 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190161835] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:17,845 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:17,845 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:17,845 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520866581] [2021-06-05 03:41:17,845 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:17,845 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:17,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:17,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:17,845 INFO L87 Difference]: Start difference. First operand 5143 states and 24427 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:17,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:17,946 INFO L93 Difference]: Finished difference Result 11975 states and 53426 transitions. [2021-06-05 03:41:17,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:17,946 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:17,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:17,974 INFO L225 Difference]: With dead ends: 11975 [2021-06-05 03:41:17,975 INFO L226 Difference]: Without dead ends: 11433 [2021-06-05 03:41:17,975 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 110.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:18,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11433 states. [2021-06-05 03:41:18,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11433 to 5356. [2021-06-05 03:41:18,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5356 states, 5355 states have (on average 4.722875816993464) internal successors, (25291), 5355 states have internal predecessors, (25291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:18,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5356 states to 5356 states and 25291 transitions. [2021-06-05 03:41:18,205 INFO L78 Accepts]: Start accepts. Automaton has 5356 states and 25291 transitions. Word has length 29 [2021-06-05 03:41:18,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:18,205 INFO L482 AbstractCegarLoop]: Abstraction has 5356 states and 25291 transitions. [2021-06-05 03:41:18,205 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:18,205 INFO L276 IsEmpty]: Start isEmpty. Operand 5356 states and 25291 transitions. [2021-06-05 03:41:18,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:18,214 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:18,214 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:18,214 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable287 [2021-06-05 03:41:18,214 INFO L430 AbstractCegarLoop]: === Iteration 289 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:18,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:18,215 INFO L82 PathProgramCache]: Analyzing trace with hash 1274314285, now seen corresponding path program 284 times [2021-06-05 03:41:18,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:18,215 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366643309] [2021-06-05 03:41:18,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:18,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:18,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:18,318 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:18,318 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366643309] [2021-06-05 03:41:18,318 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366643309] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:18,318 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:18,319 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:18,319 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917408780] [2021-06-05 03:41:18,319 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:18,319 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:18,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:18,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:18,319 INFO L87 Difference]: Start difference. First operand 5356 states and 25291 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:18,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:18,437 INFO L93 Difference]: Finished difference Result 11910 states and 53057 transitions. [2021-06-05 03:41:18,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:18,437 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:18,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:18,466 INFO L225 Difference]: With dead ends: 11910 [2021-06-05 03:41:18,466 INFO L226 Difference]: Without dead ends: 11290 [2021-06-05 03:41:18,466 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:18,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11290 states. [2021-06-05 03:41:18,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11290 to 5213. [2021-06-05 03:41:18,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5213 states, 5212 states have (on average 4.739447429009977) internal successors, (24702), 5212 states have internal predecessors, (24702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:18,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5213 states to 5213 states and 24702 transitions. [2021-06-05 03:41:18,698 INFO L78 Accepts]: Start accepts. Automaton has 5213 states and 24702 transitions. Word has length 29 [2021-06-05 03:41:18,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:18,698 INFO L482 AbstractCegarLoop]: Abstraction has 5213 states and 24702 transitions. [2021-06-05 03:41:18,698 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:18,698 INFO L276 IsEmpty]: Start isEmpty. Operand 5213 states and 24702 transitions. [2021-06-05 03:41:18,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:18,707 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:18,707 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:18,707 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable288 [2021-06-05 03:41:18,707 INFO L430 AbstractCegarLoop]: === Iteration 290 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:18,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:18,707 INFO L82 PathProgramCache]: Analyzing trace with hash -67711059, now seen corresponding path program 285 times [2021-06-05 03:41:18,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:18,708 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443717391] [2021-06-05 03:41:18,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:18,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:18,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:18,842 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:18,842 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443717391] [2021-06-05 03:41:18,842 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443717391] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:18,842 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:18,842 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:18,842 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027659122] [2021-06-05 03:41:18,843 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:18,843 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:18,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:18,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:18,843 INFO L87 Difference]: Start difference. First operand 5213 states and 24702 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:18,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:18,944 INFO L93 Difference]: Finished difference Result 11934 states and 53217 transitions. [2021-06-05 03:41:18,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:18,944 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:18,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:18,972 INFO L225 Difference]: With dead ends: 11934 [2021-06-05 03:41:18,972 INFO L226 Difference]: Without dead ends: 11392 [2021-06-05 03:41:18,972 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 137.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:19,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11392 states. [2021-06-05 03:41:19,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11392 to 5321. [2021-06-05 03:41:19,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5321 states, 5320 states have (on average 4.718421052631579) internal successors, (25102), 5320 states have internal predecessors, (25102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:19,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5321 states to 5321 states and 25102 transitions. [2021-06-05 03:41:19,201 INFO L78 Accepts]: Start accepts. Automaton has 5321 states and 25102 transitions. Word has length 29 [2021-06-05 03:41:19,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:19,201 INFO L482 AbstractCegarLoop]: Abstraction has 5321 states and 25102 transitions. [2021-06-05 03:41:19,201 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:19,201 INFO L276 IsEmpty]: Start isEmpty. Operand 5321 states and 25102 transitions. [2021-06-05 03:41:19,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:19,210 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:19,210 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:19,210 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable289 [2021-06-05 03:41:19,210 INFO L430 AbstractCegarLoop]: === Iteration 291 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:19,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:19,211 INFO L82 PathProgramCache]: Analyzing trace with hash -148600915, now seen corresponding path program 286 times [2021-06-05 03:41:19,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:19,211 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917056491] [2021-06-05 03:41:19,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:19,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:19,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:19,332 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:19,332 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917056491] [2021-06-05 03:41:19,332 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917056491] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:19,332 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:19,332 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:19,332 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539265146] [2021-06-05 03:41:19,332 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:19,332 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:19,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:19,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:19,332 INFO L87 Difference]: Start difference. First operand 5321 states and 25102 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:19,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:19,455 INFO L93 Difference]: Finished difference Result 11863 states and 52834 transitions. [2021-06-05 03:41:19,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:19,455 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:19,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:19,483 INFO L225 Difference]: With dead ends: 11863 [2021-06-05 03:41:19,483 INFO L226 Difference]: Without dead ends: 11284 [2021-06-05 03:41:19,483 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 138.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:19,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11284 states. [2021-06-05 03:41:19,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11284 to 5213. [2021-06-05 03:41:19,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5213 states, 5212 states have (on average 4.729086722947045) internal successors, (24648), 5212 states have internal predecessors, (24648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:19,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5213 states to 5213 states and 24648 transitions. [2021-06-05 03:41:19,709 INFO L78 Accepts]: Start accepts. Automaton has 5213 states and 24648 transitions. Word has length 29 [2021-06-05 03:41:19,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:19,709 INFO L482 AbstractCegarLoop]: Abstraction has 5213 states and 24648 transitions. [2021-06-05 03:41:19,709 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:19,709 INFO L276 IsEmpty]: Start isEmpty. Operand 5213 states and 24648 transitions. [2021-06-05 03:41:19,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:19,717 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:19,717 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:19,717 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable290 [2021-06-05 03:41:19,717 INFO L430 AbstractCegarLoop]: === Iteration 292 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:19,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:19,718 INFO L82 PathProgramCache]: Analyzing trace with hash 914636555, now seen corresponding path program 287 times [2021-06-05 03:41:19,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:19,718 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445580969] [2021-06-05 03:41:19,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:19,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:19,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:19,830 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:19,830 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445580969] [2021-06-05 03:41:19,830 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445580969] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:19,830 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:19,830 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:19,830 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619064432] [2021-06-05 03:41:19,830 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:19,830 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:19,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:19,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:19,830 INFO L87 Difference]: Start difference. First operand 5213 states and 24648 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:19,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:19,944 INFO L93 Difference]: Finished difference Result 11772 states and 52503 transitions. [2021-06-05 03:41:19,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:19,945 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:19,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:19,972 INFO L225 Difference]: With dead ends: 11772 [2021-06-05 03:41:19,972 INFO L226 Difference]: Without dead ends: 11295 [2021-06-05 03:41:19,972 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 125.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:20,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11295 states. [2021-06-05 03:41:20,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11295 to 5289. [2021-06-05 03:41:20,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5289 states, 5288 states have (on average 4.7155824508320725) internal successors, (24936), 5288 states have internal predecessors, (24936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:20,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5289 states to 5289 states and 24936 transitions. [2021-06-05 03:41:20,197 INFO L78 Accepts]: Start accepts. Automaton has 5289 states and 24936 transitions. Word has length 29 [2021-06-05 03:41:20,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:20,197 INFO L482 AbstractCegarLoop]: Abstraction has 5289 states and 24936 transitions. [2021-06-05 03:41:20,197 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:20,197 INFO L276 IsEmpty]: Start isEmpty. Operand 5289 states and 24936 transitions. [2021-06-05 03:41:20,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:20,206 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:20,206 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:20,206 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable291 [2021-06-05 03:41:20,206 INFO L430 AbstractCegarLoop]: === Iteration 293 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:20,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:20,206 INFO L82 PathProgramCache]: Analyzing trace with hash -580042003, now seen corresponding path program 288 times [2021-06-05 03:41:20,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:20,207 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502481166] [2021-06-05 03:41:20,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:20,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:20,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:20,307 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:20,308 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502481166] [2021-06-05 03:41:20,308 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502481166] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:20,308 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:20,308 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:20,308 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346402603] [2021-06-05 03:41:20,308 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:20,308 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:20,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:20,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:20,308 INFO L87 Difference]: Start difference. First operand 5289 states and 24936 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:20,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:20,428 INFO L93 Difference]: Finished difference Result 11766 states and 52410 transitions. [2021-06-05 03:41:20,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:20,428 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:20,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:20,456 INFO L225 Difference]: With dead ends: 11766 [2021-06-05 03:41:20,456 INFO L226 Difference]: Without dead ends: 11121 [2021-06-05 03:41:20,456 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 125.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:20,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11121 states. [2021-06-05 03:41:20,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11121 to 5115. [2021-06-05 03:41:20,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5115 states, 5114 states have (on average 4.756941728588189) internal successors, (24327), 5114 states have internal predecessors, (24327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:20,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5115 states to 5115 states and 24327 transitions. [2021-06-05 03:41:20,681 INFO L78 Accepts]: Start accepts. Automaton has 5115 states and 24327 transitions. Word has length 29 [2021-06-05 03:41:20,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:20,681 INFO L482 AbstractCegarLoop]: Abstraction has 5115 states and 24327 transitions. [2021-06-05 03:41:20,681 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:20,681 INFO L276 IsEmpty]: Start isEmpty. Operand 5115 states and 24327 transitions. [2021-06-05 03:41:20,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:20,689 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:20,689 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:20,689 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable292 [2021-06-05 03:41:20,689 INFO L430 AbstractCegarLoop]: === Iteration 294 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:20,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:20,690 INFO L82 PathProgramCache]: Analyzing trace with hash 715106669, now seen corresponding path program 289 times [2021-06-05 03:41:20,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:20,690 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754569566] [2021-06-05 03:41:20,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:20,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:20,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:20,824 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:20,824 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754569566] [2021-06-05 03:41:20,824 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754569566] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:20,824 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:20,824 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:20,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327166078] [2021-06-05 03:41:20,824 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:20,824 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:20,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:20,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:20,825 INFO L87 Difference]: Start difference. First operand 5115 states and 24327 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:20,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:20,944 INFO L93 Difference]: Finished difference Result 11189 states and 49984 transitions. [2021-06-05 03:41:20,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:20,944 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:20,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:20,970 INFO L225 Difference]: With dead ends: 11189 [2021-06-05 03:41:20,970 INFO L226 Difference]: Without dead ends: 10774 [2021-06-05 03:41:20,971 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 157.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:21,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10774 states. [2021-06-05 03:41:21,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10774 to 5243. [2021-06-05 03:41:21,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5243 states, 5242 states have (on average 4.7491415490270885) internal successors, (24895), 5242 states have internal predecessors, (24895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:21,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5243 states to 5243 states and 24895 transitions. [2021-06-05 03:41:21,193 INFO L78 Accepts]: Start accepts. Automaton has 5243 states and 24895 transitions. Word has length 29 [2021-06-05 03:41:21,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:21,193 INFO L482 AbstractCegarLoop]: Abstraction has 5243 states and 24895 transitions. [2021-06-05 03:41:21,193 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:21,193 INFO L276 IsEmpty]: Start isEmpty. Operand 5243 states and 24895 transitions. [2021-06-05 03:41:21,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:21,202 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:21,202 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:21,202 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable293 [2021-06-05 03:41:21,202 INFO L430 AbstractCegarLoop]: === Iteration 295 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:21,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:21,202 INFO L82 PathProgramCache]: Analyzing trace with hash -1825040019, now seen corresponding path program 290 times [2021-06-05 03:41:21,202 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:21,202 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014345991] [2021-06-05 03:41:21,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:21,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:21,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:21,337 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:21,337 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014345991] [2021-06-05 03:41:21,337 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014345991] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:21,337 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:21,337 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:21,337 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185145555] [2021-06-05 03:41:21,337 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:21,338 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:21,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:21,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:21,338 INFO L87 Difference]: Start difference. First operand 5243 states and 24895 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:21,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:21,438 INFO L93 Difference]: Finished difference Result 11316 states and 50463 transitions. [2021-06-05 03:41:21,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:21,439 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:21,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:21,465 INFO L225 Difference]: With dead ends: 11316 [2021-06-05 03:41:21,465 INFO L226 Difference]: Without dead ends: 10694 [2021-06-05 03:41:21,465 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 142.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:21,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10694 states. [2021-06-05 03:41:21,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10694 to 5163. [2021-06-05 03:41:21,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5163 states, 5162 states have (on average 4.754552499031383) internal successors, (24543), 5162 states have internal predecessors, (24543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:21,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5163 states to 5163 states and 24543 transitions. [2021-06-05 03:41:21,692 INFO L78 Accepts]: Start accepts. Automaton has 5163 states and 24543 transitions. Word has length 29 [2021-06-05 03:41:21,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:21,692 INFO L482 AbstractCegarLoop]: Abstraction has 5163 states and 24543 transitions. [2021-06-05 03:41:21,693 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:21,693 INFO L276 IsEmpty]: Start isEmpty. Operand 5163 states and 24543 transitions. [2021-06-05 03:41:21,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:21,701 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:21,701 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:21,701 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable294 [2021-06-05 03:41:21,701 INFO L430 AbstractCegarLoop]: === Iteration 296 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:21,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:21,701 INFO L82 PathProgramCache]: Analyzing trace with hash 799894667, now seen corresponding path program 291 times [2021-06-05 03:41:21,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:21,702 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787298250] [2021-06-05 03:41:21,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:21,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:21,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:21,823 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:21,823 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787298250] [2021-06-05 03:41:21,823 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787298250] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:21,823 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:21,823 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:21,823 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418058418] [2021-06-05 03:41:21,823 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:21,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:21,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:21,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:21,824 INFO L87 Difference]: Start difference. First operand 5163 states and 24543 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:21,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:21,934 INFO L93 Difference]: Finished difference Result 11014 states and 49201 transitions. [2021-06-05 03:41:21,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:21,934 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:21,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:21,960 INFO L225 Difference]: With dead ends: 11014 [2021-06-05 03:41:21,960 INFO L226 Difference]: Without dead ends: 10599 [2021-06-05 03:41:21,960 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 145.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:22,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10599 states. [2021-06-05 03:41:22,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10599 to 5195. [2021-06-05 03:41:22,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5195 states, 5194 states have (on average 4.7468232576049285) internal successors, (24655), 5194 states have internal predecessors, (24655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:22,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5195 states to 5195 states and 24655 transitions. [2021-06-05 03:41:22,180 INFO L78 Accepts]: Start accepts. Automaton has 5195 states and 24655 transitions. Word has length 29 [2021-06-05 03:41:22,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:22,181 INFO L482 AbstractCegarLoop]: Abstraction has 5195 states and 24655 transitions. [2021-06-05 03:41:22,181 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:22,181 INFO L276 IsEmpty]: Start isEmpty. Operand 5195 states and 24655 transitions. [2021-06-05 03:41:22,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:22,189 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:22,189 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:22,189 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable295 [2021-06-05 03:41:22,189 INFO L430 AbstractCegarLoop]: === Iteration 297 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:22,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:22,190 INFO L82 PathProgramCache]: Analyzing trace with hash -1602226327, now seen corresponding path program 292 times [2021-06-05 03:41:22,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:22,190 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073185403] [2021-06-05 03:41:22,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:22,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:22,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:22,315 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:22,315 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073185403] [2021-06-05 03:41:22,315 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073185403] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:22,316 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:22,316 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:22,316 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271436808] [2021-06-05 03:41:22,316 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:22,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:22,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:22,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:22,316 INFO L87 Difference]: Start difference. First operand 5195 states and 24655 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:22,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:22,421 INFO L93 Difference]: Finished difference Result 11014 states and 49169 transitions. [2021-06-05 03:41:22,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:22,421 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:22,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:22,448 INFO L225 Difference]: With dead ends: 11014 [2021-06-05 03:41:22,448 INFO L226 Difference]: Without dead ends: 10567 [2021-06-05 03:41:22,449 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 133.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:22,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10567 states. [2021-06-05 03:41:22,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10567 to 5163. [2021-06-05 03:41:22,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5163 states, 5162 states have (on average 4.7514529252227815) internal successors, (24527), 5162 states have internal predecessors, (24527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:22,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5163 states to 5163 states and 24527 transitions. [2021-06-05 03:41:22,676 INFO L78 Accepts]: Start accepts. Automaton has 5163 states and 24527 transitions. Word has length 29 [2021-06-05 03:41:22,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:22,676 INFO L482 AbstractCegarLoop]: Abstraction has 5163 states and 24527 transitions. [2021-06-05 03:41:22,676 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:22,676 INFO L276 IsEmpty]: Start isEmpty. Operand 5163 states and 24527 transitions. [2021-06-05 03:41:22,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:22,685 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:22,685 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:22,685 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable296 [2021-06-05 03:41:22,685 INFO L430 AbstractCegarLoop]: === Iteration 298 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:22,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:22,685 INFO L82 PathProgramCache]: Analyzing trace with hash -880622777, now seen corresponding path program 293 times [2021-06-05 03:41:22,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:22,685 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934421767] [2021-06-05 03:41:22,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:22,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:22,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:22,819 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:22,819 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934421767] [2021-06-05 03:41:22,819 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934421767] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:22,819 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:22,819 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:22,819 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614873417] [2021-06-05 03:41:22,819 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:22,819 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:22,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:22,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:22,819 INFO L87 Difference]: Start difference. First operand 5163 states and 24527 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:22,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:22,914 INFO L93 Difference]: Finished difference Result 11316 states and 50463 transitions. [2021-06-05 03:41:22,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:22,914 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:22,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:22,941 INFO L225 Difference]: With dead ends: 11316 [2021-06-05 03:41:22,941 INFO L226 Difference]: Without dead ends: 10774 [2021-06-05 03:41:22,941 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 139.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:23,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10774 states. [2021-06-05 03:41:23,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10774 to 5243. [2021-06-05 03:41:23,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5243 states, 5242 states have (on average 4.733880198397558) internal successors, (24815), 5242 states have internal predecessors, (24815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:23,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5243 states to 5243 states and 24815 transitions. [2021-06-05 03:41:23,165 INFO L78 Accepts]: Start accepts. Automaton has 5243 states and 24815 transitions. Word has length 29 [2021-06-05 03:41:23,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:23,165 INFO L482 AbstractCegarLoop]: Abstraction has 5243 states and 24815 transitions. [2021-06-05 03:41:23,165 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:23,166 INFO L276 IsEmpty]: Start isEmpty. Operand 5243 states and 24815 transitions. [2021-06-05 03:41:23,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:23,174 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:23,174 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:23,174 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable297 [2021-06-05 03:41:23,174 INFO L430 AbstractCegarLoop]: === Iteration 299 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:23,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:23,175 INFO L82 PathProgramCache]: Analyzing trace with hash -1087430743, now seen corresponding path program 294 times [2021-06-05 03:41:23,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:23,175 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091227344] [2021-06-05 03:41:23,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:23,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:23,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:23,310 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:23,310 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091227344] [2021-06-05 03:41:23,310 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091227344] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:23,310 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:23,310 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:23,310 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312568254] [2021-06-05 03:41:23,311 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:23,311 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:23,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:23,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:23,311 INFO L87 Difference]: Start difference. First operand 5243 states and 24815 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:23,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:23,422 INFO L93 Difference]: Finished difference Result 11189 states and 49856 transitions. [2021-06-05 03:41:23,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:23,423 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:23,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:23,449 INFO L225 Difference]: With dead ends: 11189 [2021-06-05 03:41:23,449 INFO L226 Difference]: Without dead ends: 10662 [2021-06-05 03:41:23,449 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 138.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:23,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10662 states. [2021-06-05 03:41:23,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10662 to 5131. [2021-06-05 03:41:23,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.756140350877193) internal successors, (24399), 5130 states have internal predecessors, (24399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:23,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24399 transitions. [2021-06-05 03:41:23,669 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24399 transitions. Word has length 29 [2021-06-05 03:41:23,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:23,669 INFO L482 AbstractCegarLoop]: Abstraction has 5131 states and 24399 transitions. [2021-06-05 03:41:23,669 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:23,669 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24399 transitions. [2021-06-05 03:41:23,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:23,677 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:23,677 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:23,677 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable298 [2021-06-05 03:41:23,677 INFO L430 AbstractCegarLoop]: === Iteration 300 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:23,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:23,678 INFO L82 PathProgramCache]: Analyzing trace with hash 1200077387, now seen corresponding path program 295 times [2021-06-05 03:41:23,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:23,678 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718810627] [2021-06-05 03:41:23,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:23,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:23,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:23,811 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:23,811 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718810627] [2021-06-05 03:41:23,811 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718810627] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:23,811 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:23,811 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:23,811 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641324003] [2021-06-05 03:41:23,812 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:23,812 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:23,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:23,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:23,812 INFO L87 Difference]: Start difference. First operand 5131 states and 24399 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:23,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:23,929 INFO L93 Difference]: Finished difference Result 11297 states and 50484 transitions. [2021-06-05 03:41:23,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:23,930 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:23,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:23,956 INFO L225 Difference]: With dead ends: 11297 [2021-06-05 03:41:23,957 INFO L226 Difference]: Without dead ends: 10882 [2021-06-05 03:41:23,957 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 157.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:24,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10882 states. [2021-06-05 03:41:24,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10882 to 5251. [2021-06-05 03:41:24,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5251 states, 5250 states have (on average 4.747238095238095) internal successors, (24923), 5250 states have internal predecessors, (24923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:24,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5251 states to 5251 states and 24923 transitions. [2021-06-05 03:41:24,198 INFO L78 Accepts]: Start accepts. Automaton has 5251 states and 24923 transitions. Word has length 29 [2021-06-05 03:41:24,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:24,198 INFO L482 AbstractCegarLoop]: Abstraction has 5251 states and 24923 transitions. [2021-06-05 03:41:24,198 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:24,198 INFO L276 IsEmpty]: Start isEmpty. Operand 5251 states and 24923 transitions. [2021-06-05 03:41:24,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:24,207 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:24,207 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:24,207 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable299 [2021-06-05 03:41:24,207 INFO L430 AbstractCegarLoop]: === Iteration 301 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:24,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:24,207 INFO L82 PathProgramCache]: Analyzing trace with hash -1340069301, now seen corresponding path program 296 times [2021-06-05 03:41:24,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:24,207 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006087656] [2021-06-05 03:41:24,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:24,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:24,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:24,344 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:24,344 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006087656] [2021-06-05 03:41:24,344 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006087656] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:24,344 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:24,344 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:24,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025473696] [2021-06-05 03:41:24,344 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:24,344 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:24,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:24,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:24,344 INFO L87 Difference]: Start difference. First operand 5251 states and 24923 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:24,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:24,456 INFO L93 Difference]: Finished difference Result 11424 states and 50963 transitions. [2021-06-05 03:41:24,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:24,457 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:24,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:24,483 INFO L225 Difference]: With dead ends: 11424 [2021-06-05 03:41:24,483 INFO L226 Difference]: Without dead ends: 10802 [2021-06-05 03:41:24,483 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 143.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:24,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10802 states. [2021-06-05 03:41:24,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10802 to 5171. [2021-06-05 03:41:24,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5171 states, 5170 states have (on average 4.751063829787234) internal successors, (24563), 5170 states have internal predecessors, (24563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:24,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5171 states to 5171 states and 24563 transitions. [2021-06-05 03:41:24,710 INFO L78 Accepts]: Start accepts. Automaton has 5171 states and 24563 transitions. Word has length 29 [2021-06-05 03:41:24,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:24,710 INFO L482 AbstractCegarLoop]: Abstraction has 5171 states and 24563 transitions. [2021-06-05 03:41:24,710 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:24,710 INFO L276 IsEmpty]: Start isEmpty. Operand 5171 states and 24563 transitions. [2021-06-05 03:41:24,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:24,719 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:24,719 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:24,720 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable300 [2021-06-05 03:41:24,720 INFO L430 AbstractCegarLoop]: === Iteration 302 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:24,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:24,720 INFO L82 PathProgramCache]: Analyzing trace with hash -1412842101, now seen corresponding path program 297 times [2021-06-05 03:41:24,720 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:24,720 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180773707] [2021-06-05 03:41:24,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:24,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:24,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:24,840 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:24,840 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180773707] [2021-06-05 03:41:24,840 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180773707] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:24,840 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:24,840 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:24,840 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939385846] [2021-06-05 03:41:24,840 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:24,840 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:24,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:24,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:24,841 INFO L87 Difference]: Start difference. First operand 5171 states and 24563 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:24,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:24,965 INFO L93 Difference]: Finished difference Result 11194 states and 50025 transitions. [2021-06-05 03:41:24,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:24,965 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:24,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:24,992 INFO L225 Difference]: With dead ends: 11194 [2021-06-05 03:41:24,992 INFO L226 Difference]: Without dead ends: 10779 [2021-06-05 03:41:24,993 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 144.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:25,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10779 states. [2021-06-05 03:41:25,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10779 to 5219. [2021-06-05 03:41:25,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5219 states, 5218 states have (on average 4.741088539670372) internal successors, (24739), 5218 states have internal predecessors, (24739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:25,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5219 states to 5219 states and 24739 transitions. [2021-06-05 03:41:25,260 INFO L78 Accepts]: Start accepts. Automaton has 5219 states and 24739 transitions. Word has length 29 [2021-06-05 03:41:25,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:25,261 INFO L482 AbstractCegarLoop]: Abstraction has 5219 states and 24739 transitions. [2021-06-05 03:41:25,261 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:25,261 INFO L276 IsEmpty]: Start isEmpty. Operand 5219 states and 24739 transitions. [2021-06-05 03:41:25,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:25,269 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:25,269 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:25,269 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable301 [2021-06-05 03:41:25,269 INFO L430 AbstractCegarLoop]: === Iteration 303 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:25,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:25,270 INFO L82 PathProgramCache]: Analyzing trace with hash 1751772333, now seen corresponding path program 298 times [2021-06-05 03:41:25,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:25,270 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373041492] [2021-06-05 03:41:25,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:25,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:25,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:25,409 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:25,409 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373041492] [2021-06-05 03:41:25,409 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373041492] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:25,409 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:25,409 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:25,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842732097] [2021-06-05 03:41:25,409 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:25,409 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:25,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:25,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:25,409 INFO L87 Difference]: Start difference. First operand 5219 states and 24739 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:25,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:25,529 INFO L93 Difference]: Finished difference Result 11250 states and 50229 transitions. [2021-06-05 03:41:25,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:25,529 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:25,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:25,555 INFO L225 Difference]: With dead ends: 11250 [2021-06-05 03:41:25,555 INFO L226 Difference]: Without dead ends: 10731 [2021-06-05 03:41:25,555 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 162.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:25,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10731 states. [2021-06-05 03:41:25,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10731 to 5171. [2021-06-05 03:41:25,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5171 states, 5170 states have (on average 4.74642166344294) internal successors, (24539), 5170 states have internal predecessors, (24539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:25,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5171 states to 5171 states and 24539 transitions. [2021-06-05 03:41:25,777 INFO L78 Accepts]: Start accepts. Automaton has 5171 states and 24539 transitions. Word has length 29 [2021-06-05 03:41:25,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:25,777 INFO L482 AbstractCegarLoop]: Abstraction has 5171 states and 24539 transitions. [2021-06-05 03:41:25,777 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:25,778 INFO L276 IsEmpty]: Start isEmpty. Operand 5171 states and 24539 transitions. [2021-06-05 03:41:25,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:25,786 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:25,786 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:25,786 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable302 [2021-06-05 03:41:25,786 INFO L430 AbstractCegarLoop]: === Iteration 304 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:25,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:25,786 INFO L82 PathProgramCache]: Analyzing trace with hash 1818401965, now seen corresponding path program 299 times [2021-06-05 03:41:25,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:25,787 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464156973] [2021-06-05 03:41:25,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:25,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:25,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:25,917 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:25,917 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464156973] [2021-06-05 03:41:25,917 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464156973] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:25,917 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:25,917 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:25,917 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79285754] [2021-06-05 03:41:25,917 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:25,917 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:25,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:25,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:25,917 INFO L87 Difference]: Start difference. First operand 5171 states and 24539 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:26,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:26,024 INFO L93 Difference]: Finished difference Result 11508 states and 51339 transitions. [2021-06-05 03:41:26,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:26,024 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:26,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:26,051 INFO L225 Difference]: With dead ends: 11508 [2021-06-05 03:41:26,051 INFO L226 Difference]: Without dead ends: 10966 [2021-06-05 03:41:26,051 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 137.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:26,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10966 states. [2021-06-05 03:41:26,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10966 to 5279. [2021-06-05 03:41:26,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5279 states, 5278 states have (on average 4.725085259568019) internal successors, (24939), 5278 states have internal predecessors, (24939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:26,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5279 states to 5279 states and 24939 transitions. [2021-06-05 03:41:26,277 INFO L78 Accepts]: Start accepts. Automaton has 5279 states and 24939 transitions. Word has length 29 [2021-06-05 03:41:26,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:26,277 INFO L482 AbstractCegarLoop]: Abstraction has 5279 states and 24939 transitions. [2021-06-05 03:41:26,277 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:26,277 INFO L276 IsEmpty]: Start isEmpty. Operand 5279 states and 24939 transitions. [2021-06-05 03:41:26,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:26,286 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:26,286 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:26,286 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable303 [2021-06-05 03:41:26,286 INFO L430 AbstractCegarLoop]: === Iteration 305 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:26,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:26,287 INFO L82 PathProgramCache]: Analyzing trace with hash 1728642315, now seen corresponding path program 300 times [2021-06-05 03:41:26,287 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:26,287 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143112348] [2021-06-05 03:41:26,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:26,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:26,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:26,417 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:26,417 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143112348] [2021-06-05 03:41:26,417 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143112348] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:26,417 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:26,417 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:26,417 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973443306] [2021-06-05 03:41:26,417 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:26,417 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:26,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:26,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:26,417 INFO L87 Difference]: Start difference. First operand 5279 states and 24939 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:26,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:26,549 INFO L93 Difference]: Finished difference Result 11437 states and 50956 transitions. [2021-06-05 03:41:26,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:26,549 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:26,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:26,576 INFO L225 Difference]: With dead ends: 11437 [2021-06-05 03:41:26,576 INFO L226 Difference]: Without dead ends: 10818 [2021-06-05 03:41:26,576 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 154.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:26,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10818 states. [2021-06-05 03:41:26,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10818 to 5131. [2021-06-05 03:41:26,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.753021442495127) internal successors, (24383), 5130 states have internal predecessors, (24383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:26,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24383 transitions. [2021-06-05 03:41:26,799 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24383 transitions. Word has length 29 [2021-06-05 03:41:26,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:26,799 INFO L482 AbstractCegarLoop]: Abstraction has 5131 states and 24383 transitions. [2021-06-05 03:41:26,799 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:26,799 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24383 transitions. [2021-06-05 03:41:26,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:26,807 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:26,807 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:26,808 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable304 [2021-06-05 03:41:26,808 INFO L430 AbstractCegarLoop]: === Iteration 306 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:26,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:26,808 INFO L82 PathProgramCache]: Analyzing trace with hash -1906241239, now seen corresponding path program 301 times [2021-06-05 03:41:26,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:26,808 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906518744] [2021-06-05 03:41:26,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:26,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:26,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:26,917 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:26,917 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906518744] [2021-06-05 03:41:26,917 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906518744] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:26,917 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:26,917 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:26,917 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085492926] [2021-06-05 03:41:26,917 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:26,917 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:26,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:26,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:26,917 INFO L87 Difference]: Start difference. First operand 5131 states and 24383 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:27,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:27,048 INFO L93 Difference]: Finished difference Result 10863 states and 48558 transitions. [2021-06-05 03:41:27,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:27,048 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:27,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:27,074 INFO L225 Difference]: With dead ends: 10863 [2021-06-05 03:41:27,074 INFO L226 Difference]: Without dead ends: 10448 [2021-06-05 03:41:27,074 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 132.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:27,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10448 states. [2021-06-05 03:41:27,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10448 to 5179. [2021-06-05 03:41:27,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.746040942448822) internal successors, (24575), 5178 states have internal predecessors, (24575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:27,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24575 transitions. [2021-06-05 03:41:27,294 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24575 transitions. Word has length 29 [2021-06-05 03:41:27,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:27,294 INFO L482 AbstractCegarLoop]: Abstraction has 5179 states and 24575 transitions. [2021-06-05 03:41:27,294 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:27,294 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24575 transitions. [2021-06-05 03:41:27,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:27,303 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:27,303 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:27,303 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable305 [2021-06-05 03:41:27,303 INFO L430 AbstractCegarLoop]: === Iteration 307 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:27,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:27,303 INFO L82 PathProgramCache]: Analyzing trace with hash -13394937, now seen corresponding path program 302 times [2021-06-05 03:41:27,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:27,303 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849095145] [2021-06-05 03:41:27,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:27,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:27,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:27,414 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:27,415 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849095145] [2021-06-05 03:41:27,415 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849095145] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:27,415 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:27,415 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:27,415 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296882489] [2021-06-05 03:41:27,415 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:27,415 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:27,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:27,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:27,415 INFO L87 Difference]: Start difference. First operand 5179 states and 24575 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:27,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:27,532 INFO L93 Difference]: Finished difference Result 10863 states and 48526 transitions. [2021-06-05 03:41:27,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:27,532 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:27,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:27,558 INFO L225 Difference]: With dead ends: 10863 [2021-06-05 03:41:27,558 INFO L226 Difference]: Without dead ends: 10416 [2021-06-05 03:41:27,558 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 118.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:27,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10416 states. [2021-06-05 03:41:27,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10416 to 5147. [2021-06-05 03:41:27,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5147 states, 5146 states have (on average 4.750680139914497) internal successors, (24447), 5146 states have internal predecessors, (24447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:27,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5147 states to 5147 states and 24447 transitions. [2021-06-05 03:41:27,777 INFO L78 Accepts]: Start accepts. Automaton has 5147 states and 24447 transitions. Word has length 29 [2021-06-05 03:41:27,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:27,777 INFO L482 AbstractCegarLoop]: Abstraction has 5147 states and 24447 transitions. [2021-06-05 03:41:27,777 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:27,777 INFO L276 IsEmpty]: Start isEmpty. Operand 5147 states and 24447 transitions. [2021-06-05 03:41:27,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:27,785 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:27,786 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:27,786 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable306 [2021-06-05 03:41:27,786 INFO L430 AbstractCegarLoop]: === Iteration 308 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:27,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:27,786 INFO L82 PathProgramCache]: Analyzing trace with hash 1214766347, now seen corresponding path program 303 times [2021-06-05 03:41:27,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:27,786 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948566229] [2021-06-05 03:41:27,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:27,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:27,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:27,908 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:27,908 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948566229] [2021-06-05 03:41:27,908 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948566229] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:27,908 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:27,908 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:27,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020236571] [2021-06-05 03:41:27,909 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:27,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:27,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:27,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:27,909 INFO L87 Difference]: Start difference. First operand 5147 states and 24447 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:28,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:28,017 INFO L93 Difference]: Finished difference Result 10935 states and 48874 transitions. [2021-06-05 03:41:28,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:28,018 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:28,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:28,044 INFO L225 Difference]: With dead ends: 10935 [2021-06-05 03:41:28,044 INFO L226 Difference]: Without dead ends: 10520 [2021-06-05 03:41:28,044 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 138.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:28,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10520 states. [2021-06-05 03:41:28,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10520 to 5195. [2021-06-05 03:41:28,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5195 states, 5194 states have (on average 4.7406623026569115) internal successors, (24623), 5194 states have internal predecessors, (24623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:28,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5195 states to 5195 states and 24623 transitions. [2021-06-05 03:41:28,273 INFO L78 Accepts]: Start accepts. Automaton has 5195 states and 24623 transitions. Word has length 29 [2021-06-05 03:41:28,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:28,273 INFO L482 AbstractCegarLoop]: Abstraction has 5195 states and 24623 transitions. [2021-06-05 03:41:28,273 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:28,273 INFO L276 IsEmpty]: Start isEmpty. Operand 5195 states and 24623 transitions. [2021-06-05 03:41:28,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:28,281 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:28,282 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:28,282 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable307 [2021-06-05 03:41:28,282 INFO L430 AbstractCegarLoop]: === Iteration 309 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:28,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:28,282 INFO L82 PathProgramCache]: Analyzing trace with hash 1628659787, now seen corresponding path program 304 times [2021-06-05 03:41:28,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:28,282 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593011634] [2021-06-05 03:41:28,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:28,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:28,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:28,391 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:28,391 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593011634] [2021-06-05 03:41:28,391 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593011634] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:28,391 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:28,391 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:28,391 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338269738] [2021-06-05 03:41:28,391 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:28,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:28,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:28,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:28,392 INFO L87 Difference]: Start difference. First operand 5195 states and 24623 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:28,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:28,508 INFO L93 Difference]: Finished difference Result 10991 states and 49078 transitions. [2021-06-05 03:41:28,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:28,508 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:28,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:28,534 INFO L225 Difference]: With dead ends: 10991 [2021-06-05 03:41:28,535 INFO L226 Difference]: Without dead ends: 10472 [2021-06-05 03:41:28,535 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 133.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:28,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10472 states. [2021-06-05 03:41:28,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10472 to 5147. [2021-06-05 03:41:28,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5147 states, 5146 states have (on average 4.747570928876797) internal successors, (24431), 5146 states have internal predecessors, (24431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:28,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5147 states to 5147 states and 24431 transitions. [2021-06-05 03:41:28,755 INFO L78 Accepts]: Start accepts. Automaton has 5147 states and 24431 transitions. Word has length 29 [2021-06-05 03:41:28,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:28,755 INFO L482 AbstractCegarLoop]: Abstraction has 5147 states and 24431 transitions. [2021-06-05 03:41:28,755 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:28,755 INFO L276 IsEmpty]: Start isEmpty. Operand 5147 states and 24431 transitions. [2021-06-05 03:41:28,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:28,763 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:28,763 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:28,763 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable308 [2021-06-05 03:41:28,763 INFO L430 AbstractCegarLoop]: === Iteration 310 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:28,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:28,764 INFO L82 PathProgramCache]: Analyzing trace with hash -2106431353, now seen corresponding path program 305 times [2021-06-05 03:41:28,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:28,764 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999913776] [2021-06-05 03:41:28,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:28,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:28,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:28,886 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:28,886 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999913776] [2021-06-05 03:41:28,886 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999913776] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:28,886 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:28,886 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:28,886 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600860922] [2021-06-05 03:41:28,886 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:28,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:28,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:28,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:28,886 INFO L87 Difference]: Start difference. First operand 5147 states and 24431 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:28,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:28,979 INFO L93 Difference]: Finished difference Result 10935 states and 48858 transitions. [2021-06-05 03:41:28,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:28,979 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:28,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:29,005 INFO L225 Difference]: With dead ends: 10935 [2021-06-05 03:41:29,005 INFO L226 Difference]: Without dead ends: 10520 [2021-06-05 03:41:29,005 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 129.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:29,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10520 states. [2021-06-05 03:41:29,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10520 to 5195. [2021-06-05 03:41:29,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5195 states, 5194 states have (on average 4.737581825182903) internal successors, (24607), 5194 states have internal predecessors, (24607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:29,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5195 states to 5195 states and 24607 transitions. [2021-06-05 03:41:29,224 INFO L78 Accepts]: Start accepts. Automaton has 5195 states and 24607 transitions. Word has length 29 [2021-06-05 03:41:29,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:29,224 INFO L482 AbstractCegarLoop]: Abstraction has 5195 states and 24607 transitions. [2021-06-05 03:41:29,224 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:29,224 INFO L276 IsEmpty]: Start isEmpty. Operand 5195 states and 24607 transitions. [2021-06-05 03:41:29,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:29,232 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:29,232 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:29,232 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable309 [2021-06-05 03:41:29,233 INFO L430 AbstractCegarLoop]: === Iteration 311 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:29,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:29,233 INFO L82 PathProgramCache]: Analyzing trace with hash 1981727977, now seen corresponding path program 306 times [2021-06-05 03:41:29,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:29,233 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423640939] [2021-06-05 03:41:29,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:29,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:29,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:29,362 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:29,362 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423640939] [2021-06-05 03:41:29,362 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423640939] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:29,362 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:29,362 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:29,362 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180336851] [2021-06-05 03:41:29,362 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:29,362 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:29,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:29,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:29,363 INFO L87 Difference]: Start difference. First operand 5195 states and 24607 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:29,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:29,476 INFO L93 Difference]: Finished difference Result 10991 states and 49062 transitions. [2021-06-05 03:41:29,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:29,477 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:29,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:29,502 INFO L225 Difference]: With dead ends: 10991 [2021-06-05 03:41:29,502 INFO L226 Difference]: Without dead ends: 10456 [2021-06-05 03:41:29,502 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 149.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:29,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10456 states. [2021-06-05 03:41:29,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10456 to 5131. [2021-06-05 03:41:29,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.751461988304094) internal successors, (24375), 5130 states have internal predecessors, (24375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:29,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24375 transitions. [2021-06-05 03:41:29,720 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24375 transitions. Word has length 29 [2021-06-05 03:41:29,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:29,720 INFO L482 AbstractCegarLoop]: Abstraction has 5131 states and 24375 transitions. [2021-06-05 03:41:29,720 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:29,721 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24375 transitions. [2021-06-05 03:41:29,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:29,729 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:29,729 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:29,729 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable310 [2021-06-05 03:41:29,729 INFO L430 AbstractCegarLoop]: === Iteration 312 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:29,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:29,729 INFO L82 PathProgramCache]: Analyzing trace with hash 767915237, now seen corresponding path program 307 times [2021-06-05 03:41:29,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:29,729 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296024849] [2021-06-05 03:41:29,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:29,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:29,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:29,857 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:29,857 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296024849] [2021-06-05 03:41:29,857 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296024849] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:29,857 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:29,857 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:29,857 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444729973] [2021-06-05 03:41:29,857 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:29,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:29,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:29,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:29,858 INFO L87 Difference]: Start difference. First operand 5131 states and 24375 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:29,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:29,955 INFO L93 Difference]: Finished difference Result 11424 states and 50987 transitions. [2021-06-05 03:41:29,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:29,956 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:29,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:29,983 INFO L225 Difference]: With dead ends: 11424 [2021-06-05 03:41:29,983 INFO L226 Difference]: Without dead ends: 10882 [2021-06-05 03:41:29,983 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 134.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:30,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10882 states. [2021-06-05 03:41:30,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10882 to 5251. [2021-06-05 03:41:30,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5251 states, 5250 states have (on average 4.736571428571429) internal successors, (24867), 5250 states have internal predecessors, (24867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:30,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5251 states to 5251 states and 24867 transitions. [2021-06-05 03:41:30,208 INFO L78 Accepts]: Start accepts. Automaton has 5251 states and 24867 transitions. Word has length 29 [2021-06-05 03:41:30,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:30,208 INFO L482 AbstractCegarLoop]: Abstraction has 5251 states and 24867 transitions. [2021-06-05 03:41:30,208 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:30,208 INFO L276 IsEmpty]: Start isEmpty. Operand 5251 states and 24867 transitions. [2021-06-05 03:41:30,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:30,217 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:30,217 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:30,217 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable311 [2021-06-05 03:41:30,217 INFO L430 AbstractCegarLoop]: === Iteration 313 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:30,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:30,217 INFO L82 PathProgramCache]: Analyzing trace with hash 561107271, now seen corresponding path program 308 times [2021-06-05 03:41:30,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:30,218 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106687626] [2021-06-05 03:41:30,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:30,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:30,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:30,346 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:30,346 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106687626] [2021-06-05 03:41:30,346 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106687626] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:30,346 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:30,347 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:30,347 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797180477] [2021-06-05 03:41:30,347 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:30,347 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:30,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:30,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:30,347 INFO L87 Difference]: Start difference. First operand 5251 states and 24867 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:30,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:30,441 INFO L93 Difference]: Finished difference Result 11297 states and 50380 transitions. [2021-06-05 03:41:30,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:30,441 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:30,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:30,467 INFO L225 Difference]: With dead ends: 11297 [2021-06-05 03:41:30,467 INFO L226 Difference]: Without dead ends: 10802 [2021-06-05 03:41:30,467 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 135.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:30,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10802 states. [2021-06-05 03:41:30,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10802 to 5171. [2021-06-05 03:41:30,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5171 states, 5170 states have (on average 4.74642166344294) internal successors, (24539), 5170 states have internal predecessors, (24539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:30,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5171 states to 5171 states and 24539 transitions. [2021-06-05 03:41:30,688 INFO L78 Accepts]: Start accepts. Automaton has 5171 states and 24539 transitions. Word has length 29 [2021-06-05 03:41:30,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:30,688 INFO L482 AbstractCegarLoop]: Abstraction has 5171 states and 24539 transitions. [2021-06-05 03:41:30,688 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:30,688 INFO L276 IsEmpty]: Start isEmpty. Operand 5171 states and 24539 transitions. [2021-06-05 03:41:30,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:30,697 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:30,697 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:30,697 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable312 [2021-06-05 03:41:30,697 INFO L430 AbstractCegarLoop]: === Iteration 314 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:30,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:30,697 INFO L82 PathProgramCache]: Analyzing trace with hash -406044473, now seen corresponding path program 309 times [2021-06-05 03:41:30,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:30,697 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025647188] [2021-06-05 03:41:30,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:30,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:30,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:30,829 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:30,829 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025647188] [2021-06-05 03:41:30,829 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025647188] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:30,829 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:30,829 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:30,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488502863] [2021-06-05 03:41:30,829 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:30,829 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:30,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:30,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:30,829 INFO L87 Difference]: Start difference. First operand 5171 states and 24539 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:30,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:30,924 INFO L93 Difference]: Finished difference Result 11508 states and 51339 transitions. [2021-06-05 03:41:30,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:30,924 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:30,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:30,952 INFO L225 Difference]: With dead ends: 11508 [2021-06-05 03:41:30,952 INFO L226 Difference]: Without dead ends: 10966 [2021-06-05 03:41:30,952 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 139.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:31,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10966 states. [2021-06-05 03:41:31,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10966 to 5279. [2021-06-05 03:41:31,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5279 states, 5278 states have (on average 4.725085259568019) internal successors, (24939), 5278 states have internal predecessors, (24939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:31,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5279 states to 5279 states and 24939 transitions. [2021-06-05 03:41:31,178 INFO L78 Accepts]: Start accepts. Automaton has 5279 states and 24939 transitions. Word has length 29 [2021-06-05 03:41:31,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:31,178 INFO L482 AbstractCegarLoop]: Abstraction has 5279 states and 24939 transitions. [2021-06-05 03:41:31,178 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:31,178 INFO L276 IsEmpty]: Start isEmpty. Operand 5279 states and 24939 transitions. [2021-06-05 03:41:31,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:31,187 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:31,187 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:31,187 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable313 [2021-06-05 03:41:31,187 INFO L430 AbstractCegarLoop]: === Iteration 315 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:31,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:31,187 INFO L82 PathProgramCache]: Analyzing trace with hash -1644347321, now seen corresponding path program 310 times [2021-06-05 03:41:31,187 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:31,187 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76988860] [2021-06-05 03:41:31,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:31,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:31,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:31,319 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:31,319 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76988860] [2021-06-05 03:41:31,319 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76988860] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:31,319 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:31,319 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:31,319 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689564237] [2021-06-05 03:41:31,319 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:31,319 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:31,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:31,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:31,320 INFO L87 Difference]: Start difference. First operand 5279 states and 24939 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:31,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:31,434 INFO L93 Difference]: Finished difference Result 11437 states and 50956 transitions. [2021-06-05 03:41:31,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:31,434 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:31,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:31,460 INFO L225 Difference]: With dead ends: 11437 [2021-06-05 03:41:31,460 INFO L226 Difference]: Without dead ends: 10858 [2021-06-05 03:41:31,461 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 156.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:31,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10858 states. [2021-06-05 03:41:31,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10858 to 5171. [2021-06-05 03:41:31,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5171 states, 5170 states have (on average 4.738684719535783) internal successors, (24499), 5170 states have internal predecessors, (24499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:31,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5171 states to 5171 states and 24499 transitions. [2021-06-05 03:41:31,684 INFO L78 Accepts]: Start accepts. Automaton has 5171 states and 24499 transitions. Word has length 29 [2021-06-05 03:41:31,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:31,684 INFO L482 AbstractCegarLoop]: Abstraction has 5171 states and 24499 transitions. [2021-06-05 03:41:31,684 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:31,684 INFO L276 IsEmpty]: Start isEmpty. Operand 5171 states and 24499 transitions. [2021-06-05 03:41:31,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:31,693 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:31,693 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:31,693 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable314 [2021-06-05 03:41:31,693 INFO L430 AbstractCegarLoop]: === Iteration 316 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:31,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:31,693 INFO L82 PathProgramCache]: Analyzing trace with hash -1998967767, now seen corresponding path program 311 times [2021-06-05 03:41:31,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:31,693 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487799898] [2021-06-05 03:41:31,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:31,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:31,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:31,826 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:31,826 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487799898] [2021-06-05 03:41:31,826 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487799898] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:31,826 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:31,826 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:31,826 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389176177] [2021-06-05 03:41:31,826 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:31,826 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:31,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:31,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:31,827 INFO L87 Difference]: Start difference. First operand 5171 states and 24499 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:31,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:31,922 INFO L93 Difference]: Finished difference Result 11194 states and 49961 transitions. [2021-06-05 03:41:31,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:31,922 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:31,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:31,948 INFO L225 Difference]: With dead ends: 11194 [2021-06-05 03:41:31,948 INFO L226 Difference]: Without dead ends: 10779 [2021-06-05 03:41:31,948 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 139.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:32,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10779 states. [2021-06-05 03:41:32,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10779 to 5219. [2021-06-05 03:41:32,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5219 states, 5218 states have (on average 4.728823303947872) internal successors, (24675), 5218 states have internal predecessors, (24675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:32,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5219 states to 5219 states and 24675 transitions. [2021-06-05 03:41:32,169 INFO L78 Accepts]: Start accepts. Automaton has 5219 states and 24675 transitions. Word has length 29 [2021-06-05 03:41:32,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:32,170 INFO L482 AbstractCegarLoop]: Abstraction has 5219 states and 24675 transitions. [2021-06-05 03:41:32,170 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:32,170 INFO L276 IsEmpty]: Start isEmpty. Operand 5219 states and 24675 transitions. [2021-06-05 03:41:32,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:32,178 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:32,178 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:32,178 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable315 [2021-06-05 03:41:32,178 INFO L430 AbstractCegarLoop]: === Iteration 317 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:32,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:32,178 INFO L82 PathProgramCache]: Analyzing trace with hash 179919879, now seen corresponding path program 312 times [2021-06-05 03:41:32,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:32,179 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876680144] [2021-06-05 03:41:32,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:32,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:32,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:32,331 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:32,331 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876680144] [2021-06-05 03:41:32,331 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876680144] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:32,331 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:32,331 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:32,331 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107386905] [2021-06-05 03:41:32,331 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:32,331 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:32,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:32,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:32,332 INFO L87 Difference]: Start difference. First operand 5219 states and 24675 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:32,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:32,461 INFO L93 Difference]: Finished difference Result 11250 states and 50165 transitions. [2021-06-05 03:41:32,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:32,461 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:32,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:32,487 INFO L225 Difference]: With dead ends: 11250 [2021-06-05 03:41:32,487 INFO L226 Difference]: Without dead ends: 10675 [2021-06-05 03:41:32,487 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 172.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:32,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10675 states. [2021-06-05 03:41:32,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10675 to 5115. [2021-06-05 03:41:32,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5115 states, 5114 states have (on average 4.755377395385217) internal successors, (24319), 5114 states have internal predecessors, (24319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:32,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5115 states to 5115 states and 24319 transitions. [2021-06-05 03:41:32,710 INFO L78 Accepts]: Start accepts. Automaton has 5115 states and 24319 transitions. Word has length 29 [2021-06-05 03:41:32,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:32,710 INFO L482 AbstractCegarLoop]: Abstraction has 5115 states and 24319 transitions. [2021-06-05 03:41:32,710 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:32,710 INFO L276 IsEmpty]: Start isEmpty. Operand 5115 states and 24319 transitions. [2021-06-05 03:41:32,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:32,718 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:32,718 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:32,719 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable316 [2021-06-05 03:41:32,719 INFO L430 AbstractCegarLoop]: === Iteration 318 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:32,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:32,719 INFO L82 PathProgramCache]: Analyzing trace with hash -1874106327, now seen corresponding path program 313 times [2021-06-05 03:41:32,719 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:32,719 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334248883] [2021-06-05 03:41:32,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:32,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:32,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:32,845 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:32,845 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334248883] [2021-06-05 03:41:32,846 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334248883] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:32,846 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:32,846 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:32,846 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9588811] [2021-06-05 03:41:32,846 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:32,846 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:32,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:32,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:32,846 INFO L87 Difference]: Start difference. First operand 5115 states and 24319 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:32,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:32,977 INFO L93 Difference]: Finished difference Result 10730 states and 47974 transitions. [2021-06-05 03:41:32,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:32,977 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:32,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:33,003 INFO L225 Difference]: With dead ends: 10730 [2021-06-05 03:41:33,003 INFO L226 Difference]: Without dead ends: 10315 [2021-06-05 03:41:33,003 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 151.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:33,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10315 states. [2021-06-05 03:41:33,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10315 to 5187. [2021-06-05 03:41:33,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5187 states, 5186 states have (on average 4.747204010798304) internal successors, (24619), 5186 states have internal predecessors, (24619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:33,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 5187 states and 24619 transitions. [2021-06-05 03:41:33,233 INFO L78 Accepts]: Start accepts. Automaton has 5187 states and 24619 transitions. Word has length 29 [2021-06-05 03:41:33,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:33,233 INFO L482 AbstractCegarLoop]: Abstraction has 5187 states and 24619 transitions. [2021-06-05 03:41:33,233 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:33,233 INFO L276 IsEmpty]: Start isEmpty. Operand 5187 states and 24619 transitions. [2021-06-05 03:41:33,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:33,241 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:33,241 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:33,242 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable317 [2021-06-05 03:41:33,242 INFO L430 AbstractCegarLoop]: === Iteration 319 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:33,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:33,242 INFO L82 PathProgramCache]: Analyzing trace with hash -1157443381, now seen corresponding path program 314 times [2021-06-05 03:41:33,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:33,242 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470370473] [2021-06-05 03:41:33,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:33,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:33,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:33,371 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:33,371 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470370473] [2021-06-05 03:41:33,371 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470370473] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:33,371 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:33,371 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:33,371 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598645142] [2021-06-05 03:41:33,371 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:33,371 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:33,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:33,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:33,371 INFO L87 Difference]: Start difference. First operand 5187 states and 24619 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:33,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:33,493 INFO L93 Difference]: Finished difference Result 10792 states and 48195 transitions. [2021-06-05 03:41:33,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:33,493 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:33,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:33,519 INFO L225 Difference]: With dead ends: 10792 [2021-06-05 03:41:33,520 INFO L226 Difference]: Without dead ends: 10267 [2021-06-05 03:41:33,520 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 155.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:33,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10267 states. [2021-06-05 03:41:33,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10267 to 5139. [2021-06-05 03:41:33,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5139 states, 5138 states have (on average 4.7541845075905025) internal successors, (24427), 5138 states have internal predecessors, (24427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:33,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5139 states to 5139 states and 24427 transitions. [2021-06-05 03:41:33,739 INFO L78 Accepts]: Start accepts. Automaton has 5139 states and 24427 transitions. Word has length 29 [2021-06-05 03:41:33,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:33,739 INFO L482 AbstractCegarLoop]: Abstraction has 5139 states and 24427 transitions. [2021-06-05 03:41:33,739 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:33,740 INFO L276 IsEmpty]: Start isEmpty. Operand 5139 states and 24427 transitions. [2021-06-05 03:41:33,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:33,748 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:33,748 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:33,748 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable318 [2021-06-05 03:41:33,748 INFO L430 AbstractCegarLoop]: === Iteration 320 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:33,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:33,748 INFO L82 PathProgramCache]: Analyzing trace with hash 1939958923, now seen corresponding path program 315 times [2021-06-05 03:41:33,748 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:33,749 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646098125] [2021-06-05 03:41:33,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:33,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:33,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:33,866 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:33,867 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646098125] [2021-06-05 03:41:33,867 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646098125] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:33,867 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:33,867 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:33,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732490309] [2021-06-05 03:41:33,867 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:33,867 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:33,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:33,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:33,867 INFO L87 Difference]: Start difference. First operand 5139 states and 24427 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:33,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:33,977 INFO L93 Difference]: Finished difference Result 10652 states and 47609 transitions. [2021-06-05 03:41:33,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:33,978 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:33,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:34,003 INFO L225 Difference]: With dead ends: 10652 [2021-06-05 03:41:34,003 INFO L226 Difference]: Without dead ends: 10237 [2021-06-05 03:41:34,003 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 139.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:34,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10237 states. [2021-06-05 03:41:34,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10237 to 5171. [2021-06-05 03:41:34,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5171 states, 5170 states have (on average 4.74642166344294) internal successors, (24539), 5170 states have internal predecessors, (24539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:34,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5171 states to 5171 states and 24539 transitions. [2021-06-05 03:41:34,220 INFO L78 Accepts]: Start accepts. Automaton has 5171 states and 24539 transitions. Word has length 29 [2021-06-05 03:41:34,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:34,220 INFO L482 AbstractCegarLoop]: Abstraction has 5171 states and 24539 transitions. [2021-06-05 03:41:34,220 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:34,220 INFO L276 IsEmpty]: Start isEmpty. Operand 5171 states and 24539 transitions. [2021-06-05 03:41:34,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:34,229 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:34,229 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:34,229 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable319 [2021-06-05 03:41:34,229 INFO L430 AbstractCegarLoop]: === Iteration 321 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:34,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:34,229 INFO L82 PathProgramCache]: Analyzing trace with hash -1943600377, now seen corresponding path program 316 times [2021-06-05 03:41:34,229 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:34,229 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480480660] [2021-06-05 03:41:34,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:34,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:34,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:34,359 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:34,359 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480480660] [2021-06-05 03:41:34,359 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480480660] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:34,359 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:34,359 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:34,359 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756825427] [2021-06-05 03:41:34,359 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:34,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:34,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:34,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:34,360 INFO L87 Difference]: Start difference. First operand 5171 states and 24539 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:34,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:34,504 INFO L93 Difference]: Finished difference Result 10652 states and 47577 transitions. [2021-06-05 03:41:34,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:34,505 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:34,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:34,532 INFO L225 Difference]: With dead ends: 10652 [2021-06-05 03:41:34,533 INFO L226 Difference]: Without dead ends: 10205 [2021-06-05 03:41:34,533 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 136.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:34,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10205 states. [2021-06-05 03:41:34,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10205 to 5139. [2021-06-05 03:41:34,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5139 states, 5138 states have (on average 4.751070455430129) internal successors, (24411), 5138 states have internal predecessors, (24411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:34,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5139 states to 5139 states and 24411 transitions. [2021-06-05 03:41:34,752 INFO L78 Accepts]: Start accepts. Automaton has 5139 states and 24411 transitions. Word has length 29 [2021-06-05 03:41:34,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:34,753 INFO L482 AbstractCegarLoop]: Abstraction has 5139 states and 24411 transitions. [2021-06-05 03:41:34,753 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:34,753 INFO L276 IsEmpty]: Start isEmpty. Operand 5139 states and 24411 transitions. [2021-06-05 03:41:34,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:34,761 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:34,761 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:34,761 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable320 [2021-06-05 03:41:34,761 INFO L430 AbstractCegarLoop]: === Iteration 322 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:34,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:34,762 INFO L82 PathProgramCache]: Analyzing trace with hash -1807904889, now seen corresponding path program 317 times [2021-06-05 03:41:34,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:34,762 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482848662] [2021-06-05 03:41:34,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:34,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:34,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:34,886 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:34,886 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482848662] [2021-06-05 03:41:34,886 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482848662] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:34,886 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:34,886 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:34,886 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227062864] [2021-06-05 03:41:34,886 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:34,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:34,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:34,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:34,886 INFO L87 Difference]: Start difference. First operand 5139 states and 24411 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:35,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:35,000 INFO L93 Difference]: Finished difference Result 10792 states and 48211 transitions. [2021-06-05 03:41:35,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:35,000 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:35,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:35,026 INFO L225 Difference]: With dead ends: 10792 [2021-06-05 03:41:35,026 INFO L226 Difference]: Without dead ends: 10315 [2021-06-05 03:41:35,026 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 145.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:35,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10315 states. [2021-06-05 03:41:35,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10315 to 5187. [2021-06-05 03:41:35,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5187 states, 5186 states have (on average 4.74103355187042) internal successors, (24587), 5186 states have internal predecessors, (24587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:35,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 5187 states and 24587 transitions. [2021-06-05 03:41:35,249 INFO L78 Accepts]: Start accepts. Automaton has 5187 states and 24587 transitions. Word has length 29 [2021-06-05 03:41:35,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:35,250 INFO L482 AbstractCegarLoop]: Abstraction has 5187 states and 24587 transitions. [2021-06-05 03:41:35,250 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:35,250 INFO L276 IsEmpty]: Start isEmpty. Operand 5187 states and 24587 transitions. [2021-06-05 03:41:35,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:35,258 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:35,258 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:35,258 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable321 [2021-06-05 03:41:35,258 INFO L430 AbstractCegarLoop]: === Iteration 323 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:35,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:35,258 INFO L82 PathProgramCache]: Analyzing trace with hash -726842263, now seen corresponding path program 318 times [2021-06-05 03:41:35,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:35,259 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434465452] [2021-06-05 03:41:35,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:35,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:35,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:35,381 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:35,382 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434465452] [2021-06-05 03:41:35,382 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434465452] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:35,382 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:35,382 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:35,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577160468] [2021-06-05 03:41:35,382 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:35,382 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:35,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:35,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:35,382 INFO L87 Difference]: Start difference. First operand 5187 states and 24587 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:35,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:35,483 INFO L93 Difference]: Finished difference Result 10730 states and 47894 transitions. [2021-06-05 03:41:35,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:35,483 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:35,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:35,509 INFO L225 Difference]: With dead ends: 10730 [2021-06-05 03:41:35,510 INFO L226 Difference]: Without dead ends: 10251 [2021-06-05 03:41:35,510 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 131.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:35,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10251 states. [2021-06-05 03:41:35,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10251 to 5123. [2021-06-05 03:41:35,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5123 states, 5122 states have (on average 4.754978524014057) internal successors, (24355), 5122 states have internal predecessors, (24355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:35,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5123 states to 5123 states and 24355 transitions. [2021-06-05 03:41:35,732 INFO L78 Accepts]: Start accepts. Automaton has 5123 states and 24355 transitions. Word has length 29 [2021-06-05 03:41:35,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:35,733 INFO L482 AbstractCegarLoop]: Abstraction has 5123 states and 24355 transitions. [2021-06-05 03:41:35,733 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:35,733 INFO L276 IsEmpty]: Start isEmpty. Operand 5123 states and 24355 transitions. [2021-06-05 03:41:35,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:35,741 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:35,741 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:35,741 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable322 [2021-06-05 03:41:35,741 INFO L430 AbstractCegarLoop]: === Iteration 324 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:35,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:35,742 INFO L82 PathProgramCache]: Analyzing trace with hash -472988789, now seen corresponding path program 319 times [2021-06-05 03:41:35,742 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:35,742 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018526998] [2021-06-05 03:41:35,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:35,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:35,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:35,855 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:35,855 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018526998] [2021-06-05 03:41:35,855 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018526998] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:35,855 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:35,856 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:35,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727210461] [2021-06-05 03:41:35,856 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:35,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:35,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:35,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:35,856 INFO L87 Difference]: Start difference. First operand 5123 states and 24355 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:35,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:35,982 INFO L93 Difference]: Finished difference Result 10838 states and 48482 transitions. [2021-06-05 03:41:35,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:35,983 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:35,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:36,009 INFO L225 Difference]: With dead ends: 10838 [2021-06-05 03:41:36,010 INFO L226 Difference]: Without dead ends: 10423 [2021-06-05 03:41:36,010 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 138.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:36,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10423 states. [2021-06-05 03:41:36,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10423 to 5195. [2021-06-05 03:41:36,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5195 states, 5194 states have (on average 4.7468232576049285) internal successors, (24655), 5194 states have internal predecessors, (24655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:36,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5195 states to 5195 states and 24655 transitions. [2021-06-05 03:41:36,238 INFO L78 Accepts]: Start accepts. Automaton has 5195 states and 24655 transitions. Word has length 29 [2021-06-05 03:41:36,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:36,238 INFO L482 AbstractCegarLoop]: Abstraction has 5195 states and 24655 transitions. [2021-06-05 03:41:36,238 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:36,238 INFO L276 IsEmpty]: Start isEmpty. Operand 5195 states and 24655 transitions. [2021-06-05 03:41:36,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:36,247 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:36,247 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:36,247 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable323 [2021-06-05 03:41:36,247 INFO L430 AbstractCegarLoop]: === Iteration 325 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:36,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:36,247 INFO L82 PathProgramCache]: Analyzing trace with hash 243674157, now seen corresponding path program 320 times [2021-06-05 03:41:36,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:36,247 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016668738] [2021-06-05 03:41:36,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:36,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:36,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:36,362 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:36,362 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016668738] [2021-06-05 03:41:36,362 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016668738] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:36,362 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:36,362 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:36,362 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037074724] [2021-06-05 03:41:36,362 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:36,362 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:36,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:36,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:36,363 INFO L87 Difference]: Start difference. First operand 5195 states and 24655 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:36,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:36,483 INFO L93 Difference]: Finished difference Result 10900 states and 48703 transitions. [2021-06-05 03:41:36,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:36,483 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:36,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:36,509 INFO L225 Difference]: With dead ends: 10900 [2021-06-05 03:41:36,510 INFO L226 Difference]: Without dead ends: 10375 [2021-06-05 03:41:36,510 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 139.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:36,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10375 states. [2021-06-05 03:41:36,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10375 to 5147. [2021-06-05 03:41:36,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5147 states, 5146 states have (on average 4.752234745433347) internal successors, (24455), 5146 states have internal predecessors, (24455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:36,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5147 states to 5147 states and 24455 transitions. [2021-06-05 03:41:36,737 INFO L78 Accepts]: Start accepts. Automaton has 5147 states and 24455 transitions. Word has length 29 [2021-06-05 03:41:36,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:36,737 INFO L482 AbstractCegarLoop]: Abstraction has 5147 states and 24455 transitions. [2021-06-05 03:41:36,737 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:36,737 INFO L276 IsEmpty]: Start isEmpty. Operand 5147 states and 24455 transitions. [2021-06-05 03:41:36,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:36,746 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:36,746 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:36,746 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable324 [2021-06-05 03:41:36,746 INFO L430 AbstractCegarLoop]: === Iteration 326 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:36,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:36,746 INFO L82 PathProgramCache]: Analyzing trace with hash -83027061, now seen corresponding path program 321 times [2021-06-05 03:41:36,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:36,746 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738387648] [2021-06-05 03:41:36,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:36,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:36,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:36,847 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:36,847 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738387648] [2021-06-05 03:41:36,847 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738387648] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:36,847 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:36,847 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:36,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978123948] [2021-06-05 03:41:36,847 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:36,848 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:36,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:36,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:36,848 INFO L87 Difference]: Start difference. First operand 5147 states and 24455 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:36,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:36,966 INFO L93 Difference]: Finished difference Result 10832 states and 48441 transitions. [2021-06-05 03:41:36,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:36,966 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:36,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:36,992 INFO L225 Difference]: With dead ends: 10832 [2021-06-05 03:41:36,993 INFO L226 Difference]: Without dead ends: 10417 [2021-06-05 03:41:36,993 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 125.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:37,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10417 states. [2021-06-05 03:41:37,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10417 to 5195. [2021-06-05 03:41:37,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5195 states, 5194 states have (on average 4.742202541393916) internal successors, (24631), 5194 states have internal predecessors, (24631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:37,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5195 states to 5195 states and 24631 transitions. [2021-06-05 03:41:37,216 INFO L78 Accepts]: Start accepts. Automaton has 5195 states and 24631 transitions. Word has length 29 [2021-06-05 03:41:37,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:37,216 INFO L482 AbstractCegarLoop]: Abstraction has 5195 states and 24631 transitions. [2021-06-05 03:41:37,216 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:37,217 INFO L276 IsEmpty]: Start isEmpty. Operand 5195 states and 24631 transitions. [2021-06-05 03:41:37,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:37,225 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:37,225 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:37,225 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable325 [2021-06-05 03:41:37,225 INFO L430 AbstractCegarLoop]: === Iteration 327 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:37,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:37,226 INFO L82 PathProgramCache]: Analyzing trace with hash -938416309, now seen corresponding path program 322 times [2021-06-05 03:41:37,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:37,226 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043458072] [2021-06-05 03:41:37,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:37,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:37,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:37,327 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:37,327 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043458072] [2021-06-05 03:41:37,327 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043458072] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:37,327 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:37,327 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:37,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781890979] [2021-06-05 03:41:37,327 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:37,327 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:37,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:37,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:37,327 INFO L87 Difference]: Start difference. First operand 5195 states and 24631 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:37,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:37,453 INFO L93 Difference]: Finished difference Result 10888 states and 48645 transitions. [2021-06-05 03:41:37,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:37,454 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:37,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:37,479 INFO L225 Difference]: With dead ends: 10888 [2021-06-05 03:41:37,480 INFO L226 Difference]: Without dead ends: 10369 [2021-06-05 03:41:37,480 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 125.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:37,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10369 states. [2021-06-05 03:41:37,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10369 to 5147. [2021-06-05 03:41:37,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5147 states, 5146 states have (on average 4.747570928876797) internal successors, (24431), 5146 states have internal predecessors, (24431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:37,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5147 states to 5147 states and 24431 transitions. [2021-06-05 03:41:37,702 INFO L78 Accepts]: Start accepts. Automaton has 5147 states and 24431 transitions. Word has length 29 [2021-06-05 03:41:37,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:37,702 INFO L482 AbstractCegarLoop]: Abstraction has 5147 states and 24431 transitions. [2021-06-05 03:41:37,702 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:37,702 INFO L276 IsEmpty]: Start isEmpty. Operand 5147 states and 24431 transitions. [2021-06-05 03:41:37,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:37,711 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:37,711 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:37,711 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable326 [2021-06-05 03:41:37,711 INFO L430 AbstractCegarLoop]: === Iteration 328 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:37,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:37,711 INFO L82 PathProgramCache]: Analyzing trace with hash -1436688531, now seen corresponding path program 323 times [2021-06-05 03:41:37,712 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:37,712 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240646339] [2021-06-05 03:41:37,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:37,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:37,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:37,812 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:37,812 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240646339] [2021-06-05 03:41:37,813 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240646339] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:37,813 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:37,813 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:37,813 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781769519] [2021-06-05 03:41:37,813 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:37,813 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:37,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:37,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:37,813 INFO L87 Difference]: Start difference. First operand 5147 states and 24431 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:37,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:37,926 INFO L93 Difference]: Finished difference Result 10984 states and 49095 transitions. [2021-06-05 03:41:37,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:37,926 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:37,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:37,952 INFO L225 Difference]: With dead ends: 10984 [2021-06-05 03:41:37,953 INFO L226 Difference]: Without dead ends: 10507 [2021-06-05 03:41:37,953 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 126.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:38,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10507 states. [2021-06-05 03:41:38,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10507 to 5223. [2021-06-05 03:41:38,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5223 states, 5222 states have (on average 4.733626962849483) internal successors, (24719), 5222 states have internal predecessors, (24719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:38,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5223 states to 5223 states and 24719 transitions. [2021-06-05 03:41:38,177 INFO L78 Accepts]: Start accepts. Automaton has 5223 states and 24719 transitions. Word has length 29 [2021-06-05 03:41:38,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:38,177 INFO L482 AbstractCegarLoop]: Abstraction has 5223 states and 24719 transitions. [2021-06-05 03:41:38,178 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:38,178 INFO L276 IsEmpty]: Start isEmpty. Operand 5223 states and 24719 transitions. [2021-06-05 03:41:38,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:38,189 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:38,189 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:38,189 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable327 [2021-06-05 03:41:38,189 INFO L430 AbstractCegarLoop]: === Iteration 329 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:38,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:38,189 INFO L82 PathProgramCache]: Analyzing trace with hash 2117326667, now seen corresponding path program 324 times [2021-06-05 03:41:38,189 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:38,189 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69495699] [2021-06-05 03:41:38,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:38,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:38,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:38,289 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:38,289 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69495699] [2021-06-05 03:41:38,290 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69495699] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:38,290 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:38,290 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:38,290 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089974833] [2021-06-05 03:41:38,290 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:38,290 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:38,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:38,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:38,290 INFO L87 Difference]: Start difference. First operand 5223 states and 24719 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:38,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:38,409 INFO L93 Difference]: Finished difference Result 10978 states and 49002 transitions. [2021-06-05 03:41:38,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:38,410 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:38,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:38,435 INFO L225 Difference]: With dead ends: 10978 [2021-06-05 03:41:38,435 INFO L226 Difference]: Without dead ends: 10407 [2021-06-05 03:41:38,435 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 125.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:38,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10407 states. [2021-06-05 03:41:38,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10407 to 5123. [2021-06-05 03:41:38,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5123 states, 5122 states have (on average 4.753416634127294) internal successors, (24347), 5122 states have internal predecessors, (24347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:38,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5123 states to 5123 states and 24347 transitions. [2021-06-05 03:41:38,655 INFO L78 Accepts]: Start accepts. Automaton has 5123 states and 24347 transitions. Word has length 29 [2021-06-05 03:41:38,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:38,655 INFO L482 AbstractCegarLoop]: Abstraction has 5123 states and 24347 transitions. [2021-06-05 03:41:38,655 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:38,655 INFO L276 IsEmpty]: Start isEmpty. Operand 5123 states and 24347 transitions. [2021-06-05 03:41:38,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:38,664 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:38,664 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:38,664 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable328 [2021-06-05 03:41:38,664 INFO L430 AbstractCegarLoop]: === Iteration 330 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:38,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:38,664 INFO L82 PathProgramCache]: Analyzing trace with hash -1262375059, now seen corresponding path program 325 times [2021-06-05 03:41:38,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:38,664 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457086860] [2021-06-05 03:41:38,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:38,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:38,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:38,768 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:38,769 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457086860] [2021-06-05 03:41:38,769 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457086860] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:38,769 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:38,769 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:38,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329957116] [2021-06-05 03:41:38,769 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:38,769 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:38,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:38,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:38,769 INFO L87 Difference]: Start difference. First operand 5123 states and 24347 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:38,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:38,898 INFO L93 Difference]: Finished difference Result 10646 states and 47592 transitions. [2021-06-05 03:41:38,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:38,898 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:38,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:38,924 INFO L225 Difference]: With dead ends: 10646 [2021-06-05 03:41:38,924 INFO L226 Difference]: Without dead ends: 10231 [2021-06-05 03:41:38,924 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:39,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10231 states. [2021-06-05 03:41:39,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10231 to 5171. [2021-06-05 03:41:39,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5171 states, 5170 states have (on average 4.74642166344294) internal successors, (24539), 5170 states have internal predecessors, (24539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:39,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5171 states to 5171 states and 24539 transitions. [2021-06-05 03:41:39,148 INFO L78 Accepts]: Start accepts. Automaton has 5171 states and 24539 transitions. Word has length 29 [2021-06-05 03:41:39,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:39,148 INFO L482 AbstractCegarLoop]: Abstraction has 5171 states and 24539 transitions. [2021-06-05 03:41:39,148 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:39,148 INFO L276 IsEmpty]: Start isEmpty. Operand 5171 states and 24539 transitions. [2021-06-05 03:41:39,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:39,157 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:39,157 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:39,157 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable329 [2021-06-05 03:41:39,157 INFO L430 AbstractCegarLoop]: === Iteration 331 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:39,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:39,157 INFO L82 PathProgramCache]: Analyzing trace with hash -850967063, now seen corresponding path program 326 times [2021-06-05 03:41:39,157 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:39,158 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639809948] [2021-06-05 03:41:39,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:39,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:39,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:39,263 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:39,263 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639809948] [2021-06-05 03:41:39,263 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639809948] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:39,263 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:39,263 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:39,263 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285991697] [2021-06-05 03:41:39,263 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:39,263 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:39,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:39,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:39,263 INFO L87 Difference]: Start difference. First operand 5171 states and 24539 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:39,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:39,377 INFO L93 Difference]: Finished difference Result 10646 states and 47560 transitions. [2021-06-05 03:41:39,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:39,377 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:39,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:39,404 INFO L225 Difference]: With dead ends: 10646 [2021-06-05 03:41:39,404 INFO L226 Difference]: Without dead ends: 10199 [2021-06-05 03:41:39,404 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 112.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:39,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10199 states. [2021-06-05 03:41:39,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10199 to 5139. [2021-06-05 03:41:39,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5139 states, 5138 states have (on average 4.751070455430129) internal successors, (24411), 5138 states have internal predecessors, (24411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:39,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5139 states to 5139 states and 24411 transitions. [2021-06-05 03:41:39,625 INFO L78 Accepts]: Start accepts. Automaton has 5139 states and 24411 transitions. Word has length 29 [2021-06-05 03:41:39,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:39,625 INFO L482 AbstractCegarLoop]: Abstraction has 5139 states and 24411 transitions. [2021-06-05 03:41:39,625 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:39,625 INFO L276 IsEmpty]: Start isEmpty. Operand 5139 states and 24411 transitions. [2021-06-05 03:41:39,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:39,634 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:39,634 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:39,634 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable330 [2021-06-05 03:41:39,634 INFO L430 AbstractCegarLoop]: === Iteration 332 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:39,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:39,634 INFO L82 PathProgramCache]: Analyzing trace with hash 999579595, now seen corresponding path program 327 times [2021-06-05 03:41:39,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:39,634 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356248114] [2021-06-05 03:41:39,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:39,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:39,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:39,741 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:39,741 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356248114] [2021-06-05 03:41:39,741 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356248114] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:39,741 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:39,741 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:39,741 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688158555] [2021-06-05 03:41:39,741 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:39,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:39,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:39,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:39,741 INFO L87 Difference]: Start difference. First operand 5139 states and 24411 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:39,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:39,872 INFO L93 Difference]: Finished difference Result 10718 states and 47908 transitions. [2021-06-05 03:41:39,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:39,872 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:39,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:39,898 INFO L225 Difference]: With dead ends: 10718 [2021-06-05 03:41:39,898 INFO L226 Difference]: Without dead ends: 10303 [2021-06-05 03:41:39,898 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:40,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10303 states. [2021-06-05 03:41:40,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10303 to 5187. [2021-06-05 03:41:40,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5187 states, 5186 states have (on average 4.74103355187042) internal successors, (24587), 5186 states have internal predecessors, (24587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:40,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 5187 states and 24587 transitions. [2021-06-05 03:41:40,117 INFO L78 Accepts]: Start accepts. Automaton has 5187 states and 24587 transitions. Word has length 29 [2021-06-05 03:41:40,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:40,117 INFO L482 AbstractCegarLoop]: Abstraction has 5187 states and 24587 transitions. [2021-06-05 03:41:40,117 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:40,117 INFO L276 IsEmpty]: Start isEmpty. Operand 5187 states and 24587 transitions. [2021-06-05 03:41:40,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:40,126 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:40,126 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:40,126 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable331 [2021-06-05 03:41:40,126 INFO L430 AbstractCegarLoop]: === Iteration 333 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:40,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:40,126 INFO L82 PathProgramCache]: Analyzing trace with hash 771185453, now seen corresponding path program 328 times [2021-06-05 03:41:40,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:40,126 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394829737] [2021-06-05 03:41:40,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:40,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:40,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:40,230 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:40,230 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394829737] [2021-06-05 03:41:40,230 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394829737] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:40,230 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:40,230 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:40,230 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489874725] [2021-06-05 03:41:40,230 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:40,230 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:40,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:40,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:40,230 INFO L87 Difference]: Start difference. First operand 5187 states and 24587 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:40,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:40,341 INFO L93 Difference]: Finished difference Result 10774 states and 48112 transitions. [2021-06-05 03:41:40,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:40,341 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:40,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:40,366 INFO L225 Difference]: With dead ends: 10774 [2021-06-05 03:41:40,366 INFO L226 Difference]: Without dead ends: 10255 [2021-06-05 03:41:40,366 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:40,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10255 states. [2021-06-05 03:41:40,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10255 to 5139. [2021-06-05 03:41:40,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5139 states, 5138 states have (on average 4.747956403269755) internal successors, (24395), 5138 states have internal predecessors, (24395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:40,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5139 states to 5139 states and 24395 transitions. [2021-06-05 03:41:40,586 INFO L78 Accepts]: Start accepts. Automaton has 5139 states and 24395 transitions. Word has length 29 [2021-06-05 03:41:40,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:40,586 INFO L482 AbstractCegarLoop]: Abstraction has 5139 states and 24395 transitions. [2021-06-05 03:41:40,586 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:40,586 INFO L276 IsEmpty]: Start isEmpty. Operand 5139 states and 24395 transitions. [2021-06-05 03:41:40,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:40,595 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:40,595 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:40,595 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable332 [2021-06-05 03:41:40,595 INFO L430 AbstractCegarLoop]: === Iteration 334 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:40,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:40,595 INFO L82 PathProgramCache]: Analyzing trace with hash -696975481, now seen corresponding path program 329 times [2021-06-05 03:41:40,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:40,595 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561205812] [2021-06-05 03:41:40,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:40,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:40,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:40,710 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:40,710 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561205812] [2021-06-05 03:41:40,710 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561205812] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:40,710 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:40,710 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:40,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650590449] [2021-06-05 03:41:40,711 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:40,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:40,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:40,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:40,711 INFO L87 Difference]: Start difference. First operand 5139 states and 24395 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:40,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:40,802 INFO L93 Difference]: Finished difference Result 10718 states and 47892 transitions. [2021-06-05 03:41:40,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:40,802 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:40,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:40,827 INFO L225 Difference]: With dead ends: 10718 [2021-06-05 03:41:40,827 INFO L226 Difference]: Without dead ends: 10303 [2021-06-05 03:41:40,828 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 122.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:40,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10303 states. [2021-06-05 03:41:41,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10303 to 5187. [2021-06-05 03:41:41,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5187 states, 5186 states have (on average 4.737948322406479) internal successors, (24571), 5186 states have internal predecessors, (24571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:41,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 5187 states and 24571 transitions. [2021-06-05 03:41:41,045 INFO L78 Accepts]: Start accepts. Automaton has 5187 states and 24571 transitions. Word has length 29 [2021-06-05 03:41:41,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:41,045 INFO L482 AbstractCegarLoop]: Abstraction has 5187 states and 24571 transitions. [2021-06-05 03:41:41,046 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:41,046 INFO L276 IsEmpty]: Start isEmpty. Operand 5187 states and 24571 transitions. [2021-06-05 03:41:41,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:41,054 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:41,054 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:41,054 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable333 [2021-06-05 03:41:41,055 INFO L430 AbstractCegarLoop]: === Iteration 335 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:41,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:41,055 INFO L82 PathProgramCache]: Analyzing trace with hash -903783447, now seen corresponding path program 330 times [2021-06-05 03:41:41,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:41,055 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406113862] [2021-06-05 03:41:41,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:41,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:41,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:41,170 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:41,170 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406113862] [2021-06-05 03:41:41,170 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406113862] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:41,170 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:41,170 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:41,170 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886188293] [2021-06-05 03:41:41,170 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:41,170 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:41,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:41,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:41,171 INFO L87 Difference]: Start difference. First operand 5187 states and 24571 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:41,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:41,333 INFO L93 Difference]: Finished difference Result 10774 states and 48096 transitions. [2021-06-05 03:41:41,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:41,333 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:41,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:41,365 INFO L225 Difference]: With dead ends: 10774 [2021-06-05 03:41:41,365 INFO L226 Difference]: Without dead ends: 10239 [2021-06-05 03:41:41,366 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 151.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:41,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10239 states. [2021-06-05 03:41:41,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10239 to 5123. [2021-06-05 03:41:41,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5123 states, 5122 states have (on average 4.751854744240531) internal successors, (24339), 5122 states have internal predecessors, (24339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:41,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5123 states to 5123 states and 24339 transitions. [2021-06-05 03:41:41,605 INFO L78 Accepts]: Start accepts. Automaton has 5123 states and 24339 transitions. Word has length 29 [2021-06-05 03:41:41,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:41,605 INFO L482 AbstractCegarLoop]: Abstraction has 5123 states and 24339 transitions. [2021-06-05 03:41:41,605 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:41,605 INFO L276 IsEmpty]: Start isEmpty. Operand 5123 states and 24339 transitions. [2021-06-05 03:41:41,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:41,614 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:41,614 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:41,614 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable334 [2021-06-05 03:41:41,614 INFO L430 AbstractCegarLoop]: === Iteration 336 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:41,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:41,614 INFO L82 PathProgramCache]: Analyzing trace with hash 1123761159, now seen corresponding path program 331 times [2021-06-05 03:41:41,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:41,614 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779595663] [2021-06-05 03:41:41,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:41,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:41,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:41,734 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:41,734 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779595663] [2021-06-05 03:41:41,734 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779595663] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:41,735 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:41,735 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:41,735 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405627309] [2021-06-05 03:41:41,735 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:41,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:41,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:41,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:41,735 INFO L87 Difference]: Start difference. First operand 5123 states and 24339 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:41,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:41,858 INFO L93 Difference]: Finished difference Result 10900 states and 48735 transitions. [2021-06-05 03:41:41,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:41,858 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:41,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:41,884 INFO L225 Difference]: With dead ends: 10900 [2021-06-05 03:41:41,884 INFO L226 Difference]: Without dead ends: 10423 [2021-06-05 03:41:41,884 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 144.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:41,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10423 states. [2021-06-05 03:41:42,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10423 to 5195. [2021-06-05 03:41:42,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5195 states, 5194 states have (on average 4.74374278013092) internal successors, (24639), 5194 states have internal predecessors, (24639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:42,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5195 states to 5195 states and 24639 transitions. [2021-06-05 03:41:42,104 INFO L78 Accepts]: Start accepts. Automaton has 5195 states and 24639 transitions. Word has length 29 [2021-06-05 03:41:42,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:42,104 INFO L482 AbstractCegarLoop]: Abstraction has 5195 states and 24639 transitions. [2021-06-05 03:41:42,104 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:42,104 INFO L276 IsEmpty]: Start isEmpty. Operand 5195 states and 24639 transitions. [2021-06-05 03:41:42,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:42,113 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:42,113 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:42,113 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable335 [2021-06-05 03:41:42,113 INFO L430 AbstractCegarLoop]: === Iteration 337 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:42,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:42,113 INFO L82 PathProgramCache]: Analyzing trace with hash -2090143511, now seen corresponding path program 332 times [2021-06-05 03:41:42,113 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:42,113 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109428920] [2021-06-05 03:41:42,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:42,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:42,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:42,234 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:42,234 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109428920] [2021-06-05 03:41:42,235 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109428920] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:42,235 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:42,235 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:42,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848862274] [2021-06-05 03:41:42,235 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:42,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:42,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:42,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:42,235 INFO L87 Difference]: Start difference. First operand 5195 states and 24639 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:42,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:42,329 INFO L93 Difference]: Finished difference Result 10838 states and 48418 transitions. [2021-06-05 03:41:42,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:42,329 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:42,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:42,355 INFO L225 Difference]: With dead ends: 10838 [2021-06-05 03:41:42,355 INFO L226 Difference]: Without dead ends: 10375 [2021-06-05 03:41:42,355 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 129.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:42,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10375 states. [2021-06-05 03:41:42,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10375 to 5147. [2021-06-05 03:41:42,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5147 states, 5146 states have (on average 4.749125534395647) internal successors, (24439), 5146 states have internal predecessors, (24439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:42,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5147 states to 5147 states and 24439 transitions. [2021-06-05 03:41:42,575 INFO L78 Accepts]: Start accepts. Automaton has 5147 states and 24439 transitions. Word has length 29 [2021-06-05 03:41:42,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:42,575 INFO L482 AbstractCegarLoop]: Abstraction has 5147 states and 24439 transitions. [2021-06-05 03:41:42,575 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:42,575 INFO L276 IsEmpty]: Start isEmpty. Operand 5147 states and 24439 transitions. [2021-06-05 03:41:42,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:42,584 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:42,584 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:42,584 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable336 [2021-06-05 03:41:42,584 INFO L430 AbstractCegarLoop]: === Iteration 338 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:42,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:42,584 INFO L82 PathProgramCache]: Analyzing trace with hash -50198551, now seen corresponding path program 333 times [2021-06-05 03:41:42,584 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:42,584 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514306321] [2021-06-05 03:41:42,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:42,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:42,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:42,695 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:42,696 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514306321] [2021-06-05 03:41:42,696 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514306321] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:42,696 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:42,696 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:42,696 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518253675] [2021-06-05 03:41:42,696 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:42,696 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:42,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:42,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:42,696 INFO L87 Difference]: Start difference. First operand 5147 states and 24439 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:42,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:42,807 INFO L93 Difference]: Finished difference Result 10984 states and 49103 transitions. [2021-06-05 03:41:42,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:42,808 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:42,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:42,833 INFO L225 Difference]: With dead ends: 10984 [2021-06-05 03:41:42,833 INFO L226 Difference]: Without dead ends: 10507 [2021-06-05 03:41:42,834 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 135.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:42,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10507 states. [2021-06-05 03:41:43,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10507 to 5223. [2021-06-05 03:41:43,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5223 states, 5222 states have (on average 4.735158942933742) internal successors, (24727), 5222 states have internal predecessors, (24727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:43,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5223 states to 5223 states and 24727 transitions. [2021-06-05 03:41:43,054 INFO L78 Accepts]: Start accepts. Automaton has 5223 states and 24727 transitions. Word has length 29 [2021-06-05 03:41:43,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:43,054 INFO L482 AbstractCegarLoop]: Abstraction has 5223 states and 24727 transitions. [2021-06-05 03:41:43,054 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:43,054 INFO L276 IsEmpty]: Start isEmpty. Operand 5223 states and 24727 transitions. [2021-06-05 03:41:43,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:43,063 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:43,063 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:43,063 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable337 [2021-06-05 03:41:43,063 INFO L430 AbstractCegarLoop]: === Iteration 339 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:43,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:43,063 INFO L82 PathProgramCache]: Analyzing trace with hash -630807, now seen corresponding path program 334 times [2021-06-05 03:41:43,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:43,063 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356523832] [2021-06-05 03:41:43,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:43,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:43,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:43,174 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:43,174 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356523832] [2021-06-05 03:41:43,174 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356523832] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:43,174 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:43,174 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:43,174 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342275239] [2021-06-05 03:41:43,174 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:43,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:43,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:43,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:43,175 INFO L87 Difference]: Start difference. First operand 5223 states and 24727 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:43,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:43,287 INFO L93 Difference]: Finished difference Result 10978 states and 49010 transitions. [2021-06-05 03:41:43,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:43,287 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:43,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:43,313 INFO L225 Difference]: With dead ends: 10978 [2021-06-05 03:41:43,313 INFO L226 Difference]: Without dead ends: 10431 [2021-06-05 03:41:43,313 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 135.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:43,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10431 states. [2021-06-05 03:41:43,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10431 to 5147. [2021-06-05 03:41:43,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5147 states, 5146 states have (on average 4.744461717839099) internal successors, (24415), 5146 states have internal predecessors, (24415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:43,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5147 states to 5147 states and 24415 transitions. [2021-06-05 03:41:43,537 INFO L78 Accepts]: Start accepts. Automaton has 5147 states and 24415 transitions. Word has length 29 [2021-06-05 03:41:43,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:43,537 INFO L482 AbstractCegarLoop]: Abstraction has 5147 states and 24415 transitions. [2021-06-05 03:41:43,537 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:43,537 INFO L276 IsEmpty]: Start isEmpty. Operand 5147 states and 24415 transitions. [2021-06-05 03:41:43,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:43,546 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:43,546 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:43,546 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable338 [2021-06-05 03:41:43,546 INFO L430 AbstractCegarLoop]: === Iteration 340 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:43,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:43,546 INFO L82 PathProgramCache]: Analyzing trace with hash 337806411, now seen corresponding path program 335 times [2021-06-05 03:41:43,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:43,546 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694780220] [2021-06-05 03:41:43,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:43,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:43,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:43,686 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:43,686 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694780220] [2021-06-05 03:41:43,686 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694780220] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:43,686 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:43,686 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:43,686 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774311781] [2021-06-05 03:41:43,687 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:43,687 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:43,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:43,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:43,687 INFO L87 Difference]: Start difference. First operand 5147 states and 24415 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:43,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:43,787 INFO L93 Difference]: Finished difference Result 10832 states and 48401 transitions. [2021-06-05 03:41:43,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:43,787 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:43,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:43,813 INFO L225 Difference]: With dead ends: 10832 [2021-06-05 03:41:43,813 INFO L226 Difference]: Without dead ends: 10417 [2021-06-05 03:41:43,813 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 140.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:43,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10417 states. [2021-06-05 03:41:44,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10417 to 5195. [2021-06-05 03:41:44,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5195 states, 5194 states have (on average 4.734501347708895) internal successors, (24591), 5194 states have internal predecessors, (24591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:44,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5195 states to 5195 states and 24591 transitions. [2021-06-05 03:41:44,067 INFO L78 Accepts]: Start accepts. Automaton has 5195 states and 24591 transitions. Word has length 29 [2021-06-05 03:41:44,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:44,067 INFO L482 AbstractCegarLoop]: Abstraction has 5195 states and 24591 transitions. [2021-06-05 03:41:44,067 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:44,067 INFO L276 IsEmpty]: Start isEmpty. Operand 5195 states and 24591 transitions. [2021-06-05 03:41:44,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:44,076 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:44,076 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:44,076 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable339 [2021-06-05 03:41:44,076 INFO L430 AbstractCegarLoop]: === Iteration 341 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:44,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:44,076 INFO L82 PathProgramCache]: Analyzing trace with hash -1778273239, now seen corresponding path program 336 times [2021-06-05 03:41:44,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:44,076 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164495889] [2021-06-05 03:41:44,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:44,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:44,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:44,200 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:44,200 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164495889] [2021-06-05 03:41:44,200 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164495889] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:44,200 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:44,200 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:44,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714012958] [2021-06-05 03:41:44,201 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:44,201 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:44,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:44,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:44,201 INFO L87 Difference]: Start difference. First operand 5195 states and 24591 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:44,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:44,331 INFO L93 Difference]: Finished difference Result 10888 states and 48605 transitions. [2021-06-05 03:41:44,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:44,331 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:44,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:44,357 INFO L225 Difference]: With dead ends: 10888 [2021-06-05 03:41:44,357 INFO L226 Difference]: Without dead ends: 10337 [2021-06-05 03:41:44,357 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 146.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:44,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10337 states. [2021-06-05 03:41:44,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10337 to 5115. [2021-06-05 03:41:44,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5115 states, 5114 states have (on average 4.754595228783731) internal successors, (24315), 5114 states have internal predecessors, (24315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:44,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5115 states to 5115 states and 24315 transitions. [2021-06-05 03:41:44,574 INFO L78 Accepts]: Start accepts. Automaton has 5115 states and 24315 transitions. Word has length 29 [2021-06-05 03:41:44,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:44,574 INFO L482 AbstractCegarLoop]: Abstraction has 5115 states and 24315 transitions. [2021-06-05 03:41:44,574 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:44,575 INFO L276 IsEmpty]: Start isEmpty. Operand 5115 states and 24315 transitions. [2021-06-05 03:41:44,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:44,583 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:44,583 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:44,583 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable340 [2021-06-05 03:41:44,583 INFO L430 AbstractCegarLoop]: === Iteration 342 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:44,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:44,583 INFO L82 PathProgramCache]: Analyzing trace with hash -1951426331, now seen corresponding path program 337 times [2021-06-05 03:41:44,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:44,583 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953290817] [2021-06-05 03:41:44,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:44,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:44,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:44,701 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:44,701 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953290817] [2021-06-05 03:41:44,701 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953290817] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:44,701 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:44,701 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:44,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268823279] [2021-06-05 03:41:44,701 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:44,701 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:44,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:44,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:44,701 INFO L87 Difference]: Start difference. First operand 5115 states and 24315 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:44,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:44,800 INFO L93 Difference]: Finished difference Result 11849 states and 52853 transitions. [2021-06-05 03:41:44,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:44,800 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:44,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:44,828 INFO L225 Difference]: With dead ends: 11849 [2021-06-05 03:41:44,828 INFO L226 Difference]: Without dead ends: 11307 [2021-06-05 03:41:44,828 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 123.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:44,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11307 states. [2021-06-05 03:41:45,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11307 to 5342. [2021-06-05 03:41:45,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5342 states, 5341 states have (on average 4.72757910503651) internal successors, (25250), 5341 states have internal predecessors, (25250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:45,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5342 states to 5342 states and 25250 transitions. [2021-06-05 03:41:45,057 INFO L78 Accepts]: Start accepts. Automaton has 5342 states and 25250 transitions. Word has length 29 [2021-06-05 03:41:45,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:45,058 INFO L482 AbstractCegarLoop]: Abstraction has 5342 states and 25250 transitions. [2021-06-05 03:41:45,058 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:45,058 INFO L276 IsEmpty]: Start isEmpty. Operand 5342 states and 25250 transitions. [2021-06-05 03:41:45,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:45,067 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:45,067 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:45,067 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable341 [2021-06-05 03:41:45,067 INFO L430 AbstractCegarLoop]: === Iteration 343 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:45,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:45,067 INFO L82 PathProgramCache]: Analyzing trace with hash -870363705, now seen corresponding path program 338 times [2021-06-05 03:41:45,067 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:45,067 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778285258] [2021-06-05 03:41:45,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:45,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:45,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:45,192 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:45,192 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778285258] [2021-06-05 03:41:45,192 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778285258] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:45,192 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:45,192 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:45,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625913977] [2021-06-05 03:41:45,192 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:45,192 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:45,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:45,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:45,193 INFO L87 Difference]: Start difference. First operand 5342 states and 25250 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:45,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:45,308 INFO L93 Difference]: Finished difference Result 11784 states and 52484 transitions. [2021-06-05 03:41:45,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:45,309 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:45,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:45,336 INFO L225 Difference]: With dead ends: 11784 [2021-06-05 03:41:45,337 INFO L226 Difference]: Without dead ends: 11164 [2021-06-05 03:41:45,337 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 145.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:45,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11164 states. [2021-06-05 03:41:45,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11164 to 5199. [2021-06-05 03:41:45,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5199 states, 5198 states have (on average 4.747018083878415) internal successors, (24675), 5198 states have internal predecessors, (24675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:45,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5199 states to 5199 states and 24675 transitions. [2021-06-05 03:41:45,564 INFO L78 Accepts]: Start accepts. Automaton has 5199 states and 24675 transitions. Word has length 29 [2021-06-05 03:41:45,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:45,564 INFO L482 AbstractCegarLoop]: Abstraction has 5199 states and 24675 transitions. [2021-06-05 03:41:45,564 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:45,564 INFO L276 IsEmpty]: Start isEmpty. Operand 5199 states and 24675 transitions. [2021-06-05 03:41:45,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:45,573 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:45,573 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:45,573 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable342 [2021-06-05 03:41:45,573 INFO L430 AbstractCegarLoop]: === Iteration 344 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:45,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:45,573 INFO L82 PathProgramCache]: Analyzing trace with hash 1862638919, now seen corresponding path program 339 times [2021-06-05 03:41:45,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:45,573 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580164526] [2021-06-05 03:41:45,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:45,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:45,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:45,697 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:45,697 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580164526] [2021-06-05 03:41:45,697 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580164526] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:45,698 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:45,698 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:45,698 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116510413] [2021-06-05 03:41:45,698 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:45,698 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:45,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:45,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:45,698 INFO L87 Difference]: Start difference. First operand 5199 states and 24675 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:45,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:45,796 INFO L93 Difference]: Finished difference Result 11724 states and 52266 transitions. [2021-06-05 03:41:45,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:45,796 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:45,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:45,824 INFO L225 Difference]: With dead ends: 11724 [2021-06-05 03:41:45,824 INFO L226 Difference]: Without dead ends: 11182 [2021-06-05 03:41:45,824 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 130.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:45,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11182 states. [2021-06-05 03:41:46,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11182 to 5279. [2021-06-05 03:41:46,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5279 states, 5278 states have (on average 4.729632436528989) internal successors, (24963), 5278 states have internal predecessors, (24963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:46,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5279 states to 5279 states and 24963 transitions. [2021-06-05 03:41:46,054 INFO L78 Accepts]: Start accepts. Automaton has 5279 states and 24963 transitions. Word has length 29 [2021-06-05 03:41:46,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:46,054 INFO L482 AbstractCegarLoop]: Abstraction has 5279 states and 24963 transitions. [2021-06-05 03:41:46,054 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:46,054 INFO L276 IsEmpty]: Start isEmpty. Operand 5279 states and 24963 transitions. [2021-06-05 03:41:46,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:46,063 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:46,063 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:46,063 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable343 [2021-06-05 03:41:46,063 INFO L430 AbstractCegarLoop]: === Iteration 345 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:46,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:46,063 INFO L82 PathProgramCache]: Analyzing trace with hash 174392647, now seen corresponding path program 340 times [2021-06-05 03:41:46,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:46,063 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394730684] [2021-06-05 03:41:46,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:46,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:46,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:46,187 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:46,187 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394730684] [2021-06-05 03:41:46,187 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394730684] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:46,187 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:46,187 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:46,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327151445] [2021-06-05 03:41:46,187 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:46,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:46,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:46,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:46,188 INFO L87 Difference]: Start difference. First operand 5279 states and 24963 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:46,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:46,293 INFO L93 Difference]: Finished difference Result 11597 states and 51659 transitions. [2021-06-05 03:41:46,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:46,294 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:46,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:46,322 INFO L225 Difference]: With dead ends: 11597 [2021-06-05 03:41:46,322 INFO L226 Difference]: Without dead ends: 11102 [2021-06-05 03:41:46,322 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 130.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:46,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11102 states. [2021-06-05 03:41:46,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11102 to 5199. [2021-06-05 03:41:46,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5199 states, 5198 states have (on average 4.7393228164678725) internal successors, (24635), 5198 states have internal predecessors, (24635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:46,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5199 states to 5199 states and 24635 transitions. [2021-06-05 03:41:46,551 INFO L78 Accepts]: Start accepts. Automaton has 5199 states and 24635 transitions. Word has length 29 [2021-06-05 03:41:46,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:46,551 INFO L482 AbstractCegarLoop]: Abstraction has 5199 states and 24635 transitions. [2021-06-05 03:41:46,551 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:46,551 INFO L276 IsEmpty]: Start isEmpty. Operand 5199 states and 24635 transitions. [2021-06-05 03:41:46,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:46,560 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:46,560 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:46,560 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable344 [2021-06-05 03:41:46,560 INFO L430 AbstractCegarLoop]: === Iteration 346 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:46,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:46,560 INFO L82 PathProgramCache]: Analyzing trace with hash -2044323415, now seen corresponding path program 341 times [2021-06-05 03:41:46,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:46,561 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244982562] [2021-06-05 03:41:46,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:46,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:46,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:46,686 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:46,686 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244982562] [2021-06-05 03:41:46,686 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244982562] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:46,686 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:46,686 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:46,686 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268345283] [2021-06-05 03:41:46,686 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:46,686 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:46,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:46,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:46,686 INFO L87 Difference]: Start difference. First operand 5199 states and 24635 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:46,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:46,796 INFO L93 Difference]: Finished difference Result 11562 states and 51566 transitions. [2021-06-05 03:41:46,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:46,796 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:46,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:46,824 INFO L225 Difference]: With dead ends: 11562 [2021-06-05 03:41:46,824 INFO L226 Difference]: Without dead ends: 11085 [2021-06-05 03:41:46,824 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 148.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:46,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11085 states. [2021-06-05 03:41:47,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11085 to 5247. [2021-06-05 03:41:47,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5247 states, 5246 states have (on average 4.729508196721311) internal successors, (24811), 5246 states have internal predecessors, (24811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:47,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5247 states to 5247 states and 24811 transitions. [2021-06-05 03:41:47,049 INFO L78 Accepts]: Start accepts. Automaton has 5247 states and 24811 transitions. Word has length 29 [2021-06-05 03:41:47,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:47,050 INFO L482 AbstractCegarLoop]: Abstraction has 5247 states and 24811 transitions. [2021-06-05 03:41:47,050 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:47,050 INFO L276 IsEmpty]: Start isEmpty. Operand 5247 states and 24811 transitions. [2021-06-05 03:41:47,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:47,058 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:47,058 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:47,058 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable345 [2021-06-05 03:41:47,059 INFO L430 AbstractCegarLoop]: === Iteration 347 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:47,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:47,059 INFO L82 PathProgramCache]: Analyzing trace with hash 1403846919, now seen corresponding path program 342 times [2021-06-05 03:41:47,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:47,059 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351012372] [2021-06-05 03:41:47,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:47,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:47,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:47,185 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:47,185 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351012372] [2021-06-05 03:41:47,185 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351012372] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:47,185 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:47,185 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:47,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205540882] [2021-06-05 03:41:47,185 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:47,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:47,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:47,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:47,186 INFO L87 Difference]: Start difference. First operand 5247 states and 24811 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:47,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:47,292 INFO L93 Difference]: Finished difference Result 11500 states and 51249 transitions. [2021-06-05 03:41:47,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:47,293 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:47,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:47,320 INFO L225 Difference]: With dead ends: 11500 [2021-06-05 03:41:47,320 INFO L226 Difference]: Without dead ends: 10981 [2021-06-05 03:41:47,320 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 145.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:47,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10981 states. [2021-06-05 03:41:47,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10981 to 5143. [2021-06-05 03:41:47,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.752042007001167) internal successors, (24435), 5142 states have internal predecessors, (24435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:47,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24435 transitions. [2021-06-05 03:41:47,544 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24435 transitions. Word has length 29 [2021-06-05 03:41:47,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:47,544 INFO L482 AbstractCegarLoop]: Abstraction has 5143 states and 24435 transitions. [2021-06-05 03:41:47,544 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:47,544 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24435 transitions. [2021-06-05 03:41:47,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:47,553 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:47,553 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:47,553 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable346 [2021-06-05 03:41:47,553 INFO L430 AbstractCegarLoop]: === Iteration 348 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:47,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:47,553 INFO L82 PathProgramCache]: Analyzing trace with hash -550308793, now seen corresponding path program 343 times [2021-06-05 03:41:47,553 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:47,553 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079222167] [2021-06-05 03:41:47,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:47,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:47,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:47,665 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:47,665 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079222167] [2021-06-05 03:41:47,665 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079222167] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:47,665 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:47,665 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:47,665 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095602759] [2021-06-05 03:41:47,665 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:47,665 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:47,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:47,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:47,665 INFO L87 Difference]: Start difference. First operand 5143 states and 24435 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:47,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:47,766 INFO L93 Difference]: Finished difference Result 11975 states and 53434 transitions. [2021-06-05 03:41:47,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:47,767 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:47,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:47,795 INFO L225 Difference]: With dead ends: 11975 [2021-06-05 03:41:47,795 INFO L226 Difference]: Without dead ends: 11433 [2021-06-05 03:41:47,795 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 118.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:47,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11433 states. [2021-06-05 03:41:48,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11433 to 5356. [2021-06-05 03:41:48,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5356 states, 5355 states have (on average 4.72436974789916) internal successors, (25299), 5355 states have internal predecessors, (25299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:48,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5356 states to 5356 states and 25299 transitions. [2021-06-05 03:41:48,026 INFO L78 Accepts]: Start accepts. Automaton has 5356 states and 25299 transitions. Word has length 29 [2021-06-05 03:41:48,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:48,026 INFO L482 AbstractCegarLoop]: Abstraction has 5356 states and 25299 transitions. [2021-06-05 03:41:48,026 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:48,026 INFO L276 IsEmpty]: Start isEmpty. Operand 5356 states and 25299 transitions. [2021-06-05 03:41:48,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:48,035 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:48,035 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:48,035 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable347 [2021-06-05 03:41:48,035 INFO L430 AbstractCegarLoop]: === Iteration 349 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:48,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:48,036 INFO L82 PathProgramCache]: Analyzing trace with hash 530753833, now seen corresponding path program 344 times [2021-06-05 03:41:48,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:48,036 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324833742] [2021-06-05 03:41:48,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:48,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:48,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:48,147 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:48,147 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324833742] [2021-06-05 03:41:48,147 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324833742] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:48,147 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:48,147 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:48,147 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910795588] [2021-06-05 03:41:48,147 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:48,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:48,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:48,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:48,147 INFO L87 Difference]: Start difference. First operand 5356 states and 25299 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:48,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:48,260 INFO L93 Difference]: Finished difference Result 11910 states and 53065 transitions. [2021-06-05 03:41:48,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:48,260 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:48,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:48,288 INFO L225 Difference]: With dead ends: 11910 [2021-06-05 03:41:48,289 INFO L226 Difference]: Without dead ends: 11290 [2021-06-05 03:41:48,289 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 134.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:48,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11290 states. [2021-06-05 03:41:48,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11290 to 5213. [2021-06-05 03:41:48,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5213 states, 5212 states have (on average 4.740982348426708) internal successors, (24710), 5212 states have internal predecessors, (24710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:48,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5213 states to 5213 states and 24710 transitions. [2021-06-05 03:41:48,521 INFO L78 Accepts]: Start accepts. Automaton has 5213 states and 24710 transitions. Word has length 29 [2021-06-05 03:41:48,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:48,522 INFO L482 AbstractCegarLoop]: Abstraction has 5213 states and 24710 transitions. [2021-06-05 03:41:48,522 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:48,522 INFO L276 IsEmpty]: Start isEmpty. Operand 5213 states and 24710 transitions. [2021-06-05 03:41:48,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:48,530 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:48,530 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:48,530 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable348 [2021-06-05 03:41:48,530 INFO L430 AbstractCegarLoop]: === Iteration 350 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:48,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:48,531 INFO L82 PathProgramCache]: Analyzing trace with hash -160347065, now seen corresponding path program 345 times [2021-06-05 03:41:48,531 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:48,531 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974959258] [2021-06-05 03:41:48,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:48,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:48,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:48,653 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:48,653 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974959258] [2021-06-05 03:41:48,653 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974959258] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:48,653 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:48,653 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:48,653 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114608893] [2021-06-05 03:41:48,653 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:48,653 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:48,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:48,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:48,654 INFO L87 Difference]: Start difference. First operand 5213 states and 24710 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:48,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:48,758 INFO L93 Difference]: Finished difference Result 11934 states and 53225 transitions. [2021-06-05 03:41:48,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:48,758 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:48,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:48,786 INFO L225 Difference]: With dead ends: 11934 [2021-06-05 03:41:48,787 INFO L226 Difference]: Without dead ends: 11392 [2021-06-05 03:41:48,787 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:48,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11392 states. [2021-06-05 03:41:48,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11392 to 5321. [2021-06-05 03:41:49,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5321 states, 5320 states have (on average 4.719924812030075) internal successors, (25110), 5320 states have internal predecessors, (25110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:49,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5321 states to 5321 states and 25110 transitions. [2021-06-05 03:41:49,019 INFO L78 Accepts]: Start accepts. Automaton has 5321 states and 25110 transitions. Word has length 29 [2021-06-05 03:41:49,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:49,019 INFO L482 AbstractCegarLoop]: Abstraction has 5321 states and 25110 transitions. [2021-06-05 03:41:49,019 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:49,019 INFO L276 IsEmpty]: Start isEmpty. Operand 5321 states and 25110 transitions. [2021-06-05 03:41:49,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:49,028 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:49,028 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:49,028 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable349 [2021-06-05 03:41:49,028 INFO L430 AbstractCegarLoop]: === Iteration 351 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:49,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:49,028 INFO L82 PathProgramCache]: Analyzing trace with hash 1627034695, now seen corresponding path program 346 times [2021-06-05 03:41:49,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:49,029 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474502211] [2021-06-05 03:41:49,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:49,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:49,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:49,150 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:49,150 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474502211] [2021-06-05 03:41:49,150 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474502211] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:49,150 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:49,150 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:49,150 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607730733] [2021-06-05 03:41:49,151 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:49,151 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:49,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:49,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:49,151 INFO L87 Difference]: Start difference. First operand 5321 states and 25110 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:49,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:49,270 INFO L93 Difference]: Finished difference Result 11863 states and 52842 transitions. [2021-06-05 03:41:49,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:49,270 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:49,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:49,298 INFO L225 Difference]: With dead ends: 11863 [2021-06-05 03:41:49,298 INFO L226 Difference]: Without dead ends: 11284 [2021-06-05 03:41:49,298 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 145.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:49,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11284 states. [2021-06-05 03:41:49,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11284 to 5213. [2021-06-05 03:41:49,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5213 states, 5212 states have (on average 4.730621642363776) internal successors, (24656), 5212 states have internal predecessors, (24656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:49,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5213 states to 5213 states and 24656 transitions. [2021-06-05 03:41:49,528 INFO L78 Accepts]: Start accepts. Automaton has 5213 states and 24656 transitions. Word has length 29 [2021-06-05 03:41:49,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:49,528 INFO L482 AbstractCegarLoop]: Abstraction has 5213 states and 24656 transitions. [2021-06-05 03:41:49,528 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:49,528 INFO L276 IsEmpty]: Start isEmpty. Operand 5213 states and 24656 transitions. [2021-06-05 03:41:49,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:49,537 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:49,537 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:49,537 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable350 [2021-06-05 03:41:49,537 INFO L430 AbstractCegarLoop]: === Iteration 352 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:49,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:49,537 INFO L82 PathProgramCache]: Analyzing trace with hash 227657897, now seen corresponding path program 347 times [2021-06-05 03:41:49,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:49,537 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259182737] [2021-06-05 03:41:49,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:49,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:49,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:49,648 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:49,648 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259182737] [2021-06-05 03:41:49,648 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259182737] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:49,648 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:49,648 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:49,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809166893] [2021-06-05 03:41:49,648 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:49,648 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:49,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:49,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:49,649 INFO L87 Difference]: Start difference. First operand 5213 states and 24656 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:49,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:49,761 INFO L93 Difference]: Finished difference Result 11772 states and 52511 transitions. [2021-06-05 03:41:49,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:49,761 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:49,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:49,789 INFO L225 Difference]: With dead ends: 11772 [2021-06-05 03:41:49,789 INFO L226 Difference]: Without dead ends: 11295 [2021-06-05 03:41:49,789 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 134.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:49,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11295 states. [2021-06-05 03:41:49,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11295 to 5289. [2021-06-05 03:41:50,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5289 states, 5288 states have (on average 4.717095310136157) internal successors, (24944), 5288 states have internal predecessors, (24944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:50,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5289 states to 5289 states and 24944 transitions. [2021-06-05 03:41:50,017 INFO L78 Accepts]: Start accepts. Automaton has 5289 states and 24944 transitions. Word has length 29 [2021-06-05 03:41:50,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:50,017 INFO L482 AbstractCegarLoop]: Abstraction has 5289 states and 24944 transitions. [2021-06-05 03:41:50,017 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:50,017 INFO L276 IsEmpty]: Start isEmpty. Operand 5289 states and 24944 transitions. [2021-06-05 03:41:50,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:50,026 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:50,026 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:50,026 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable351 [2021-06-05 03:41:50,026 INFO L430 AbstractCegarLoop]: === Iteration 353 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:50,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:50,027 INFO L82 PathProgramCache]: Analyzing trace with hash 1137262855, now seen corresponding path program 348 times [2021-06-05 03:41:50,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:50,027 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535472977] [2021-06-05 03:41:50,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:50,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:50,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:50,153 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:50,153 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535472977] [2021-06-05 03:41:50,153 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535472977] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:50,153 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:50,153 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:50,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636296029] [2021-06-05 03:41:50,154 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:50,154 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:50,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:50,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:50,154 INFO L87 Difference]: Start difference. First operand 5289 states and 24944 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:50,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:50,276 INFO L93 Difference]: Finished difference Result 11766 states and 52418 transitions. [2021-06-05 03:41:50,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:50,276 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:50,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:50,304 INFO L225 Difference]: With dead ends: 11766 [2021-06-05 03:41:50,305 INFO L226 Difference]: Without dead ends: 11149 [2021-06-05 03:41:50,305 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 150.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:50,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11149 states. [2021-06-05 03:41:50,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11149 to 5143. [2021-06-05 03:41:50,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.746596654998055) internal successors, (24407), 5142 states have internal predecessors, (24407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:50,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24407 transitions. [2021-06-05 03:41:50,539 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24407 transitions. Word has length 29 [2021-06-05 03:41:50,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:50,539 INFO L482 AbstractCegarLoop]: Abstraction has 5143 states and 24407 transitions. [2021-06-05 03:41:50,539 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:50,539 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24407 transitions. [2021-06-05 03:41:50,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:50,547 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:50,548 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:50,548 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable352 [2021-06-05 03:41:50,548 INFO L430 AbstractCegarLoop]: === Iteration 354 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:50,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:50,548 INFO L82 PathProgramCache]: Analyzing trace with hash -1339695063, now seen corresponding path program 349 times [2021-06-05 03:41:50,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:50,548 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138846438] [2021-06-05 03:41:50,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:50,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:50,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:50,678 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:50,678 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138846438] [2021-06-05 03:41:50,678 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138846438] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:50,678 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:50,678 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:50,678 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264099940] [2021-06-05 03:41:50,678 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:50,678 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:50,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:50,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:50,679 INFO L87 Difference]: Start difference. First operand 5143 states and 24407 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:50,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:50,793 INFO L93 Difference]: Finished difference Result 11667 states and 52063 transitions. [2021-06-05 03:41:50,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:50,793 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:50,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:50,821 INFO L225 Difference]: With dead ends: 11667 [2021-06-05 03:41:50,821 INFO L226 Difference]: Without dead ends: 11125 [2021-06-05 03:41:50,821 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 136.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:50,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11125 states. [2021-06-05 03:41:51,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11125 to 5263. [2021-06-05 03:41:51,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5263 states, 5262 states have (on average 4.7318510072215885) internal successors, (24899), 5262 states have internal predecessors, (24899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:51,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5263 states to 5263 states and 24899 transitions. [2021-06-05 03:41:51,047 INFO L78 Accepts]: Start accepts. Automaton has 5263 states and 24899 transitions. Word has length 29 [2021-06-05 03:41:51,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:51,047 INFO L482 AbstractCegarLoop]: Abstraction has 5263 states and 24899 transitions. [2021-06-05 03:41:51,048 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:51,048 INFO L276 IsEmpty]: Start isEmpty. Operand 5263 states and 24899 transitions. [2021-06-05 03:41:51,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:51,056 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:51,056 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:51,056 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable353 [2021-06-05 03:41:51,056 INFO L430 AbstractCegarLoop]: === Iteration 355 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:51,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:51,057 INFO L82 PathProgramCache]: Analyzing trace with hash 1267025961, now seen corresponding path program 350 times [2021-06-05 03:41:51,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:51,057 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514958107] [2021-06-05 03:41:51,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:51,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:51,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:51,186 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:51,186 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514958107] [2021-06-05 03:41:51,186 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514958107] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:51,187 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:51,187 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:51,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561241379] [2021-06-05 03:41:51,187 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:51,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:51,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:51,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:51,187 INFO L87 Difference]: Start difference. First operand 5263 states and 24899 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:51,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:51,301 INFO L93 Difference]: Finished difference Result 11540 states and 51456 transitions. [2021-06-05 03:41:51,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:51,301 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:51,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:51,328 INFO L225 Difference]: With dead ends: 11540 [2021-06-05 03:41:51,328 INFO L226 Difference]: Without dead ends: 11045 [2021-06-05 03:41:51,328 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 137.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:51,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11045 states. [2021-06-05 03:41:51,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11045 to 5183. [2021-06-05 03:41:51,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5183 states, 5182 states have (on average 4.74160555769973) internal successors, (24571), 5182 states have internal predecessors, (24571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:51,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5183 states to 5183 states and 24571 transitions. [2021-06-05 03:41:51,556 INFO L78 Accepts]: Start accepts. Automaton has 5183 states and 24571 transitions. Word has length 29 [2021-06-05 03:41:51,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:51,556 INFO L482 AbstractCegarLoop]: Abstraction has 5183 states and 24571 transitions. [2021-06-05 03:41:51,556 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:51,556 INFO L276 IsEmpty]: Start isEmpty. Operand 5183 states and 24571 transitions. [2021-06-05 03:41:51,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:51,565 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:51,565 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:51,565 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable354 [2021-06-05 03:41:51,565 INFO L430 AbstractCegarLoop]: === Iteration 356 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:51,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:51,565 INFO L82 PathProgramCache]: Analyzing trace with hash 922259591, now seen corresponding path program 351 times [2021-06-05 03:41:51,565 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:51,565 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654840057] [2021-06-05 03:41:51,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:51,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:51,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:51,707 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:51,707 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654840057] [2021-06-05 03:41:51,707 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654840057] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:51,707 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:51,707 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:51,707 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949273669] [2021-06-05 03:41:51,707 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:51,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:51,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:51,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:51,707 INFO L87 Difference]: Start difference. First operand 5183 states and 24571 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:51,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:51,816 INFO L93 Difference]: Finished difference Result 11751 states and 52415 transitions. [2021-06-05 03:41:51,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:51,816 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:51,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:51,844 INFO L225 Difference]: With dead ends: 11751 [2021-06-05 03:41:51,844 INFO L226 Difference]: Without dead ends: 11209 [2021-06-05 03:41:51,844 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 140.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:51,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11209 states. [2021-06-05 03:41:52,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11209 to 5291. [2021-06-05 03:41:52,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5291 states, 5290 states have (on average 4.720415879017013) internal successors, (24971), 5290 states have internal predecessors, (24971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:52,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5291 states to 5291 states and 24971 transitions. [2021-06-05 03:41:52,074 INFO L78 Accepts]: Start accepts. Automaton has 5291 states and 24971 transitions. Word has length 29 [2021-06-05 03:41:52,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:52,074 INFO L482 AbstractCegarLoop]: Abstraction has 5291 states and 24971 transitions. [2021-06-05 03:41:52,074 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:52,074 INFO L276 IsEmpty]: Start isEmpty. Operand 5291 states and 24971 transitions. [2021-06-05 03:41:52,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:52,083 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:52,083 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:52,083 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable355 [2021-06-05 03:41:52,083 INFO L430 AbstractCegarLoop]: === Iteration 357 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:52,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:52,083 INFO L82 PathProgramCache]: Analyzing trace with hash -958330839, now seen corresponding path program 352 times [2021-06-05 03:41:52,083 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:52,083 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393796698] [2021-06-05 03:41:52,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:52,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:52,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:52,215 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:52,215 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393796698] [2021-06-05 03:41:52,215 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393796698] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:52,215 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:52,215 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:52,215 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177637636] [2021-06-05 03:41:52,216 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:52,216 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:52,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:52,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:52,216 INFO L87 Difference]: Start difference. First operand 5291 states and 24971 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:52,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:52,329 INFO L93 Difference]: Finished difference Result 11680 states and 52032 transitions. [2021-06-05 03:41:52,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:52,330 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:52,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:52,357 INFO L225 Difference]: With dead ends: 11680 [2021-06-05 03:41:52,357 INFO L226 Difference]: Without dead ends: 11101 [2021-06-05 03:41:52,357 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 156.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:52,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11101 states. [2021-06-05 03:41:52,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11101 to 5183. [2021-06-05 03:41:52,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5183 states, 5182 states have (on average 4.733886530297182) internal successors, (24531), 5182 states have internal predecessors, (24531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:52,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5183 states to 5183 states and 24531 transitions. [2021-06-05 03:41:52,583 INFO L78 Accepts]: Start accepts. Automaton has 5183 states and 24531 transitions. Word has length 29 [2021-06-05 03:41:52,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:52,583 INFO L482 AbstractCegarLoop]: Abstraction has 5183 states and 24531 transitions. [2021-06-05 03:41:52,583 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:52,583 INFO L276 IsEmpty]: Start isEmpty. Operand 5183 states and 24531 transitions. [2021-06-05 03:41:52,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:52,591 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:52,591 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:52,591 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable356 [2021-06-05 03:41:52,592 INFO L430 AbstractCegarLoop]: === Iteration 358 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:52,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:52,592 INFO L82 PathProgramCache]: Analyzing trace with hash 953978921, now seen corresponding path program 353 times [2021-06-05 03:41:52,592 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:52,592 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828398801] [2021-06-05 03:41:52,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:52,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:52,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:52,725 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:52,725 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828398801] [2021-06-05 03:41:52,725 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828398801] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:52,725 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:52,725 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:52,725 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82153208] [2021-06-05 03:41:52,725 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:52,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:52,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:52,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:52,725 INFO L87 Difference]: Start difference. First operand 5183 states and 24531 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:52,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:52,818 INFO L93 Difference]: Finished difference Result 11437 states and 51037 transitions. [2021-06-05 03:41:52,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:52,819 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:52,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:52,846 INFO L225 Difference]: With dead ends: 11437 [2021-06-05 03:41:52,846 INFO L226 Difference]: Without dead ends: 11022 [2021-06-05 03:41:52,846 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 140.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:52,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11022 states. [2021-06-05 03:41:53,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11022 to 5231. [2021-06-05 03:41:53,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5231 states, 5230 states have (on average 4.724091778202677) internal successors, (24707), 5230 states have internal predecessors, (24707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:53,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5231 states to 5231 states and 24707 transitions. [2021-06-05 03:41:53,149 INFO L78 Accepts]: Start accepts. Automaton has 5231 states and 24707 transitions. Word has length 29 [2021-06-05 03:41:53,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:53,150 INFO L482 AbstractCegarLoop]: Abstraction has 5231 states and 24707 transitions. [2021-06-05 03:41:53,150 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:53,150 INFO L276 IsEmpty]: Start isEmpty. Operand 5231 states and 24707 transitions. [2021-06-05 03:41:53,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:53,158 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:53,158 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:53,158 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable357 [2021-06-05 03:41:53,158 INFO L430 AbstractCegarLoop]: === Iteration 359 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:53,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:53,159 INFO L82 PathProgramCache]: Analyzing trace with hash -1162100729, now seen corresponding path program 354 times [2021-06-05 03:41:53,159 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:53,159 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137462154] [2021-06-05 03:41:53,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:53,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:53,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:53,289 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:53,289 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137462154] [2021-06-05 03:41:53,289 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137462154] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:53,289 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:53,289 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:53,289 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864173829] [2021-06-05 03:41:53,289 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:53,289 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:53,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:53,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:53,290 INFO L87 Difference]: Start difference. First operand 5231 states and 24707 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:53,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:53,403 INFO L93 Difference]: Finished difference Result 11493 states and 51241 transitions. [2021-06-05 03:41:53,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:53,404 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:53,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:53,430 INFO L225 Difference]: With dead ends: 11493 [2021-06-05 03:41:53,430 INFO L226 Difference]: Without dead ends: 10934 [2021-06-05 03:41:53,431 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 153.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:53,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10934 states. [2021-06-05 03:41:53,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10934 to 5143. [2021-06-05 03:41:53,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.742707117852976) internal successors, (24387), 5142 states have internal predecessors, (24387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:53,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24387 transitions. [2021-06-05 03:41:53,661 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24387 transitions. Word has length 29 [2021-06-05 03:41:53,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:53,661 INFO L482 AbstractCegarLoop]: Abstraction has 5143 states and 24387 transitions. [2021-06-05 03:41:53,662 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:53,662 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24387 transitions. [2021-06-05 03:41:53,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:53,670 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:53,670 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:53,670 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable358 [2021-06-05 03:41:53,670 INFO L430 AbstractCegarLoop]: === Iteration 360 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:53,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:53,671 INFO L82 PathProgramCache]: Analyzing trace with hash -1260174325, now seen corresponding path program 355 times [2021-06-05 03:41:53,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:53,671 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40873392] [2021-06-05 03:41:53,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:53,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:53,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:53,799 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:53,799 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40873392] [2021-06-05 03:41:53,799 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40873392] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:53,799 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:53,799 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:53,799 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955679943] [2021-06-05 03:41:53,799 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:53,799 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:53,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:53,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:53,800 INFO L87 Difference]: Start difference. First operand 5143 states and 24387 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:53,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:53,922 INFO L93 Difference]: Finished difference Result 11360 states and 50757 transitions. [2021-06-05 03:41:53,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:53,922 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:53,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:53,949 INFO L225 Difference]: With dead ends: 11360 [2021-06-05 03:41:53,949 INFO L226 Difference]: Without dead ends: 10883 [2021-06-05 03:41:53,950 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 152.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:54,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10883 states. [2021-06-05 03:41:54,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10883 to 5215. [2021-06-05 03:41:54,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5215 states, 5214 states have (on average 4.734752589182969) internal successors, (24687), 5214 states have internal predecessors, (24687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:54,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5215 states to 5215 states and 24687 transitions. [2021-06-05 03:41:54,175 INFO L78 Accepts]: Start accepts. Automaton has 5215 states and 24687 transitions. Word has length 29 [2021-06-05 03:41:54,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:54,175 INFO L482 AbstractCegarLoop]: Abstraction has 5215 states and 24687 transitions. [2021-06-05 03:41:54,175 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:54,175 INFO L276 IsEmpty]: Start isEmpty. Operand 5215 states and 24687 transitions. [2021-06-05 03:41:54,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:54,184 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:54,184 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:54,184 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable359 [2021-06-05 03:41:54,184 INFO L430 AbstractCegarLoop]: === Iteration 361 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:54,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:54,184 INFO L82 PathProgramCache]: Analyzing trace with hash -2106971287, now seen corresponding path program 356 times [2021-06-05 03:41:54,184 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:54,184 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920745553] [2021-06-05 03:41:54,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:54,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:54,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:54,332 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:54,332 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920745553] [2021-06-05 03:41:54,332 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920745553] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:54,332 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:54,332 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:54,332 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153583085] [2021-06-05 03:41:54,332 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:54,332 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:54,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:54,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:54,333 INFO L87 Difference]: Start difference. First operand 5215 states and 24687 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:54,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:54,465 INFO L93 Difference]: Finished difference Result 11298 states and 50440 transitions. [2021-06-05 03:41:54,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:54,465 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:54,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:54,499 INFO L225 Difference]: With dead ends: 11298 [2021-06-05 03:41:54,499 INFO L226 Difference]: Without dead ends: 10835 [2021-06-05 03:41:54,500 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 152.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:54,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10835 states. [2021-06-05 03:41:54,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10835 to 5167. [2021-06-05 03:41:54,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5167 states, 5166 states have (on average 4.740030971738289) internal successors, (24487), 5166 states have internal predecessors, (24487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:54,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 24487 transitions. [2021-06-05 03:41:54,773 INFO L78 Accepts]: Start accepts. Automaton has 5167 states and 24487 transitions. Word has length 29 [2021-06-05 03:41:54,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:54,773 INFO L482 AbstractCegarLoop]: Abstraction has 5167 states and 24487 transitions. [2021-06-05 03:41:54,773 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:54,773 INFO L276 IsEmpty]: Start isEmpty. Operand 5167 states and 24487 transitions. [2021-06-05 03:41:54,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:54,782 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:54,782 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:54,782 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable360 [2021-06-05 03:41:54,782 INFO L430 AbstractCegarLoop]: === Iteration 362 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:54,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:54,782 INFO L82 PathProgramCache]: Analyzing trace with hash 1001780329, now seen corresponding path program 357 times [2021-06-05 03:41:54,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:54,782 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793881964] [2021-06-05 03:41:54,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:54,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:54,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:54,900 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:54,900 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793881964] [2021-06-05 03:41:54,900 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793881964] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:54,900 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:54,900 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:54,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016728426] [2021-06-05 03:41:54,900 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:54,900 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:54,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:54,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:54,900 INFO L87 Difference]: Start difference. First operand 5167 states and 24487 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:55,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:55,015 INFO L93 Difference]: Finished difference Result 11444 states and 51125 transitions. [2021-06-05 03:41:55,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:55,015 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:55,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:55,043 INFO L225 Difference]: With dead ends: 11444 [2021-06-05 03:41:55,043 INFO L226 Difference]: Without dead ends: 10967 [2021-06-05 03:41:55,043 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 141.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:55,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10967 states. [2021-06-05 03:41:55,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10967 to 5243. [2021-06-05 03:41:55,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5243 states, 5242 states have (on average 4.726249523082793) internal successors, (24775), 5242 states have internal predecessors, (24775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:55,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5243 states to 5243 states and 24775 transitions. [2021-06-05 03:41:55,271 INFO L78 Accepts]: Start accepts. Automaton has 5243 states and 24775 transitions. Word has length 29 [2021-06-05 03:41:55,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:55,271 INFO L482 AbstractCegarLoop]: Abstraction has 5243 states and 24775 transitions. [2021-06-05 03:41:55,271 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:55,271 INFO L276 IsEmpty]: Start isEmpty. Operand 5243 states and 24775 transitions. [2021-06-05 03:41:55,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:55,280 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:55,280 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:55,280 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable361 [2021-06-05 03:41:55,280 INFO L430 AbstractCegarLoop]: === Iteration 363 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:55,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:55,280 INFO L82 PathProgramCache]: Analyzing trace with hash -1756586903, now seen corresponding path program 358 times [2021-06-05 03:41:55,281 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:55,281 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075998109] [2021-06-05 03:41:55,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:55,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:55,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:55,398 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:55,398 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075998109] [2021-06-05 03:41:55,398 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075998109] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:55,398 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:55,398 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:55,398 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223166917] [2021-06-05 03:41:55,398 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:55,398 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:55,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:55,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:55,398 INFO L87 Difference]: Start difference. First operand 5243 states and 24775 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:55,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:55,522 INFO L93 Difference]: Finished difference Result 11438 states and 51032 transitions. [2021-06-05 03:41:55,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:55,523 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:55,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:55,550 INFO L225 Difference]: With dead ends: 11438 [2021-06-05 03:41:55,550 INFO L226 Difference]: Without dead ends: 10891 [2021-06-05 03:41:55,550 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 141.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:55,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10891 states. [2021-06-05 03:41:55,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10891 to 5167. [2021-06-05 03:41:55,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5167 states, 5166 states have (on average 4.735385210994967) internal successors, (24463), 5166 states have internal predecessors, (24463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:55,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 24463 transitions. [2021-06-05 03:41:55,774 INFO L78 Accepts]: Start accepts. Automaton has 5167 states and 24463 transitions. Word has length 29 [2021-06-05 03:41:55,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:55,774 INFO L482 AbstractCegarLoop]: Abstraction has 5167 states and 24463 transitions. [2021-06-05 03:41:55,774 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:55,774 INFO L276 IsEmpty]: Start isEmpty. Operand 5167 states and 24463 transitions. [2021-06-05 03:41:55,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:55,782 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:55,782 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:55,782 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable362 [2021-06-05 03:41:55,782 INFO L430 AbstractCegarLoop]: === Iteration 364 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:55,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:55,783 INFO L82 PathProgramCache]: Analyzing trace with hash 145032263, now seen corresponding path program 359 times [2021-06-05 03:41:55,783 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:55,783 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011468172] [2021-06-05 03:41:55,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:55,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:55,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:55,914 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:55,914 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011468172] [2021-06-05 03:41:55,914 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011468172] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:55,914 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:55,915 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:55,915 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844110843] [2021-06-05 03:41:55,915 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:55,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:55,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:55,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:55,915 INFO L87 Difference]: Start difference. First operand 5167 states and 24463 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:56,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:56,009 INFO L93 Difference]: Finished difference Result 11292 states and 50423 transitions. [2021-06-05 03:41:56,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:56,009 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:56,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:56,037 INFO L225 Difference]: With dead ends: 11292 [2021-06-05 03:41:56,037 INFO L226 Difference]: Without dead ends: 10877 [2021-06-05 03:41:56,037 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 138.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:56,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10877 states. [2021-06-05 03:41:56,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10877 to 5215. [2021-06-05 03:41:56,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5215 states, 5214 states have (on average 4.725546605293441) internal successors, (24639), 5214 states have internal predecessors, (24639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:56,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5215 states to 5215 states and 24639 transitions. [2021-06-05 03:41:56,261 INFO L78 Accepts]: Start accepts. Automaton has 5215 states and 24639 transitions. Word has length 29 [2021-06-05 03:41:56,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:56,261 INFO L482 AbstractCegarLoop]: Abstraction has 5215 states and 24639 transitions. [2021-06-05 03:41:56,261 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:56,262 INFO L276 IsEmpty]: Start isEmpty. Operand 5215 states and 24639 transitions. [2021-06-05 03:41:56,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:56,270 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:56,270 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:56,270 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable363 [2021-06-05 03:41:56,270 INFO L430 AbstractCegarLoop]: === Iteration 365 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:56,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:56,271 INFO L82 PathProgramCache]: Analyzing trace with hash -1028927447, now seen corresponding path program 360 times [2021-06-05 03:41:56,271 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:56,271 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736140342] [2021-06-05 03:41:56,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:56,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:56,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:56,400 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:56,400 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736140342] [2021-06-05 03:41:56,400 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736140342] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:56,400 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:56,400 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:56,400 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766327235] [2021-06-05 03:41:56,400 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:56,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:56,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:56,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:56,400 INFO L87 Difference]: Start difference. First operand 5215 states and 24639 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:56,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:56,518 INFO L93 Difference]: Finished difference Result 11348 states and 50627 transitions. [2021-06-05 03:41:56,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:56,518 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:56,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:56,545 INFO L225 Difference]: With dead ends: 11348 [2021-06-05 03:41:56,545 INFO L226 Difference]: Without dead ends: 10765 [2021-06-05 03:41:56,545 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 153.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:56,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10765 states. [2021-06-05 03:41:56,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10765 to 5103. [2021-06-05 03:41:56,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5103 states, 5102 states have (on average 4.758330066640533) internal successors, (24277), 5102 states have internal predecessors, (24277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:56,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5103 states to 5103 states and 24277 transitions. [2021-06-05 03:41:56,770 INFO L78 Accepts]: Start accepts. Automaton has 5103 states and 24277 transitions. Word has length 29 [2021-06-05 03:41:56,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:56,770 INFO L482 AbstractCegarLoop]: Abstraction has 5103 states and 24277 transitions. [2021-06-05 03:41:56,770 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:56,771 INFO L276 IsEmpty]: Start isEmpty. Operand 5103 states and 24277 transitions. [2021-06-05 03:41:56,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:56,779 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:56,779 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:56,779 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable364 [2021-06-05 03:41:56,779 INFO L430 AbstractCegarLoop]: === Iteration 366 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:56,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:56,779 INFO L82 PathProgramCache]: Analyzing trace with hash -1342427667, now seen corresponding path program 361 times [2021-06-05 03:41:56,779 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:56,779 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879513498] [2021-06-05 03:41:56,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:56,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:56,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:56,904 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:56,904 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879513498] [2021-06-05 03:41:56,904 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879513498] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:56,904 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:56,904 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:56,904 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113798933] [2021-06-05 03:41:56,904 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:56,904 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:56,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:56,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:56,904 INFO L87 Difference]: Start difference. First operand 5103 states and 24277 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:57,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:57,022 INFO L93 Difference]: Finished difference Result 11084 states and 49581 transitions. [2021-06-05 03:41:57,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:57,022 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:57,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:57,048 INFO L225 Difference]: With dead ends: 11084 [2021-06-05 03:41:57,048 INFO L226 Difference]: Without dead ends: 10669 [2021-06-05 03:41:57,049 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 147.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:57,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10669 states. [2021-06-05 03:41:57,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10669 to 5239. [2021-06-05 03:41:57,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5239 states, 5238 states have (on average 4.752386407025583) internal successors, (24893), 5238 states have internal predecessors, (24893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:57,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5239 states to 5239 states and 24893 transitions. [2021-06-05 03:41:57,272 INFO L78 Accepts]: Start accepts. Automaton has 5239 states and 24893 transitions. Word has length 29 [2021-06-05 03:41:57,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:57,272 INFO L482 AbstractCegarLoop]: Abstraction has 5239 states and 24893 transitions. [2021-06-05 03:41:57,272 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:57,272 INFO L276 IsEmpty]: Start isEmpty. Operand 5239 states and 24893 transitions. [2021-06-05 03:41:57,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:57,281 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:57,281 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:57,281 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable365 [2021-06-05 03:41:57,281 INFO L430 AbstractCegarLoop]: === Iteration 367 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:57,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:57,281 INFO L82 PathProgramCache]: Analyzing trace with hash 412392941, now seen corresponding path program 362 times [2021-06-05 03:41:57,281 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:57,281 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439144340] [2021-06-05 03:41:57,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:57,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:57,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:57,407 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:57,407 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439144340] [2021-06-05 03:41:57,407 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439144340] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:57,407 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:57,407 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:57,407 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676557227] [2021-06-05 03:41:57,407 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:57,407 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:57,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:57,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:57,408 INFO L87 Difference]: Start difference. First operand 5239 states and 24893 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:57,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:57,520 INFO L93 Difference]: Finished difference Result 11211 states and 50060 transitions. [2021-06-05 03:41:57,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:57,520 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:57,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:57,546 INFO L225 Difference]: With dead ends: 11211 [2021-06-05 03:41:57,546 INFO L226 Difference]: Without dead ends: 10589 [2021-06-05 03:41:57,547 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 133.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:57,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10589 states. [2021-06-05 03:41:57,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10589 to 5159. [2021-06-05 03:41:57,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5159 states, 5158 states have (on average 4.757851880573866) internal successors, (24541), 5158 states have internal predecessors, (24541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:57,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5159 states to 5159 states and 24541 transitions. [2021-06-05 03:41:57,767 INFO L78 Accepts]: Start accepts. Automaton has 5159 states and 24541 transitions. Word has length 29 [2021-06-05 03:41:57,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:57,767 INFO L482 AbstractCegarLoop]: Abstraction has 5159 states and 24541 transitions. [2021-06-05 03:41:57,767 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:57,767 INFO L276 IsEmpty]: Start isEmpty. Operand 5159 states and 24541 transitions. [2021-06-05 03:41:57,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:57,776 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:57,776 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:57,776 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable366 [2021-06-05 03:41:57,776 INFO L430 AbstractCegarLoop]: === Iteration 368 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:57,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:57,776 INFO L82 PathProgramCache]: Analyzing trace with hash -1257639669, now seen corresponding path program 363 times [2021-06-05 03:41:57,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:57,776 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544763825] [2021-06-05 03:41:57,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:57,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:57,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:57,892 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:57,893 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544763825] [2021-06-05 03:41:57,893 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544763825] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:57,893 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:57,893 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:57,893 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780079183] [2021-06-05 03:41:57,893 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:57,893 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:57,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:57,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:57,893 INFO L87 Difference]: Start difference. First operand 5159 states and 24541 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:58,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:58,014 INFO L93 Difference]: Finished difference Result 10909 states and 48798 transitions. [2021-06-05 03:41:58,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:58,014 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:58,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:58,040 INFO L225 Difference]: With dead ends: 10909 [2021-06-05 03:41:58,041 INFO L226 Difference]: Without dead ends: 10494 [2021-06-05 03:41:58,041 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 140.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:58,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10494 states. [2021-06-05 03:41:58,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10494 to 5191. [2021-06-05 03:41:58,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.75009633911368) internal successors, (24653), 5190 states have internal predecessors, (24653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:58,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24653 transitions. [2021-06-05 03:41:58,261 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24653 transitions. Word has length 29 [2021-06-05 03:41:58,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:58,261 INFO L482 AbstractCegarLoop]: Abstraction has 5191 states and 24653 transitions. [2021-06-05 03:41:58,261 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:58,261 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24653 transitions. [2021-06-05 03:41:58,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:58,270 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:58,270 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:58,270 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable367 [2021-06-05 03:41:58,270 INFO L430 AbstractCegarLoop]: === Iteration 369 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:58,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:58,271 INFO L82 PathProgramCache]: Analyzing trace with hash 635206633, now seen corresponding path program 364 times [2021-06-05 03:41:58,271 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:58,271 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001877259] [2021-06-05 03:41:58,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:58,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:58,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:58,393 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:58,393 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001877259] [2021-06-05 03:41:58,393 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001877259] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:58,393 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:58,393 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:58,393 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326679191] [2021-06-05 03:41:58,393 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:58,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:58,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:58,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:58,394 INFO L87 Difference]: Start difference. First operand 5191 states and 24653 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:58,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:58,491 INFO L93 Difference]: Finished difference Result 10909 states and 48766 transitions. [2021-06-05 03:41:58,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:58,491 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:58,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:58,517 INFO L225 Difference]: With dead ends: 10909 [2021-06-05 03:41:58,517 INFO L226 Difference]: Without dead ends: 10462 [2021-06-05 03:41:58,517 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 129.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:58,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10462 states. [2021-06-05 03:41:58,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10462 to 5159. [2021-06-05 03:41:58,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5159 states, 5158 states have (on average 4.754749903063203) internal successors, (24525), 5158 states have internal predecessors, (24525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:58,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5159 states to 5159 states and 24525 transitions. [2021-06-05 03:41:58,736 INFO L78 Accepts]: Start accepts. Automaton has 5159 states and 24525 transitions. Word has length 29 [2021-06-05 03:41:58,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:58,737 INFO L482 AbstractCegarLoop]: Abstraction has 5159 states and 24525 transitions. [2021-06-05 03:41:58,737 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:58,737 INFO L276 IsEmpty]: Start isEmpty. Operand 5159 states and 24525 transitions. [2021-06-05 03:41:58,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:58,745 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:58,745 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:58,745 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable368 [2021-06-05 03:41:58,745 INFO L430 AbstractCegarLoop]: === Iteration 370 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:58,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:58,746 INFO L82 PathProgramCache]: Analyzing trace with hash 1356810183, now seen corresponding path program 365 times [2021-06-05 03:41:58,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:58,746 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085528941] [2021-06-05 03:41:58,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:58,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:58,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:58,870 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:58,871 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085528941] [2021-06-05 03:41:58,871 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085528941] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:58,871 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:58,871 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:58,871 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508379138] [2021-06-05 03:41:58,871 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:58,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:58,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:58,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:58,871 INFO L87 Difference]: Start difference. First operand 5159 states and 24525 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:58,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:58,974 INFO L93 Difference]: Finished difference Result 11211 states and 50060 transitions. [2021-06-05 03:41:58,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:58,974 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:58,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:59,001 INFO L225 Difference]: With dead ends: 11211 [2021-06-05 03:41:59,001 INFO L226 Difference]: Without dead ends: 10669 [2021-06-05 03:41:59,001 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 131.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:59,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10669 states. [2021-06-05 03:41:59,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10669 to 5239. [2021-06-05 03:41:59,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5239 states, 5238 states have (on average 4.737113402061856) internal successors, (24813), 5238 states have internal predecessors, (24813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:59,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5239 states to 5239 states and 24813 transitions. [2021-06-05 03:41:59,222 INFO L78 Accepts]: Start accepts. Automaton has 5239 states and 24813 transitions. Word has length 29 [2021-06-05 03:41:59,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:59,222 INFO L482 AbstractCegarLoop]: Abstraction has 5239 states and 24813 transitions. [2021-06-05 03:41:59,223 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:59,223 INFO L276 IsEmpty]: Start isEmpty. Operand 5239 states and 24813 transitions. [2021-06-05 03:41:59,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:59,231 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:59,231 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:59,231 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable369 [2021-06-05 03:41:59,232 INFO L430 AbstractCegarLoop]: === Iteration 371 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:59,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:59,232 INFO L82 PathProgramCache]: Analyzing trace with hash 1150002217, now seen corresponding path program 366 times [2021-06-05 03:41:59,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:59,232 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787262728] [2021-06-05 03:41:59,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:59,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:59,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:59,358 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:59,358 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787262728] [2021-06-05 03:41:59,358 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787262728] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:59,358 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:59,358 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:59,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485472780] [2021-06-05 03:41:59,358 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:59,358 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:59,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:59,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:59,359 INFO L87 Difference]: Start difference. First operand 5239 states and 24813 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:59,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:59,462 INFO L93 Difference]: Finished difference Result 11084 states and 49453 transitions. [2021-06-05 03:41:59,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:59,463 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:59,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:59,488 INFO L225 Difference]: With dead ends: 11084 [2021-06-05 03:41:59,488 INFO L226 Difference]: Without dead ends: 10557 [2021-06-05 03:41:59,488 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 133.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:41:59,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10557 states. [2021-06-05 03:41:59,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10557 to 5127. [2021-06-05 03:41:59,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5127 states, 5126 states have (on average 4.759461568474444) internal successors, (24397), 5126 states have internal predecessors, (24397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:59,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5127 states to 5127 states and 24397 transitions. [2021-06-05 03:41:59,711 INFO L78 Accepts]: Start accepts. Automaton has 5127 states and 24397 transitions. Word has length 29 [2021-06-05 03:41:59,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:41:59,711 INFO L482 AbstractCegarLoop]: Abstraction has 5127 states and 24397 transitions. [2021-06-05 03:41:59,711 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:59,711 INFO L276 IsEmpty]: Start isEmpty. Operand 5127 states and 24397 transitions. [2021-06-05 03:41:59,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:41:59,719 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:41:59,719 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:41:59,719 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable370 [2021-06-05 03:41:59,720 INFO L430 AbstractCegarLoop]: === Iteration 372 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:41:59,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:41:59,720 INFO L82 PathProgramCache]: Analyzing trace with hash 115619403, now seen corresponding path program 367 times [2021-06-05 03:41:59,720 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:41:59,720 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142865108] [2021-06-05 03:41:59,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:41:59,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:41:59,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:41:59,849 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:41:59,849 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142865108] [2021-06-05 03:41:59,849 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142865108] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:41:59,850 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:41:59,850 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:41:59,850 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909829821] [2021-06-05 03:41:59,850 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:41:59,850 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:41:59,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:41:59,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:41:59,850 INFO L87 Difference]: Start difference. First operand 5127 states and 24397 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:41:59,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:41:59,961 INFO L93 Difference]: Finished difference Result 11198 states and 50100 transitions. [2021-06-05 03:41:59,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:41:59,961 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:41:59,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:41:59,988 INFO L225 Difference]: With dead ends: 11198 [2021-06-05 03:41:59,988 INFO L226 Difference]: Without dead ends: 10783 [2021-06-05 03:41:59,988 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 153.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:00,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10783 states. [2021-06-05 03:42:00,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10783 to 5247. [2021-06-05 03:42:00,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5247 states, 5246 states have (on average 4.750476553564621) internal successors, (24921), 5246 states have internal predecessors, (24921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:00,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5247 states to 5247 states and 24921 transitions. [2021-06-05 03:42:00,209 INFO L78 Accepts]: Start accepts. Automaton has 5247 states and 24921 transitions. Word has length 29 [2021-06-05 03:42:00,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:00,210 INFO L482 AbstractCegarLoop]: Abstraction has 5247 states and 24921 transitions. [2021-06-05 03:42:00,210 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:00,210 INFO L276 IsEmpty]: Start isEmpty. Operand 5247 states and 24921 transitions. [2021-06-05 03:42:00,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:00,218 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:00,218 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:00,218 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable371 [2021-06-05 03:42:00,218 INFO L430 AbstractCegarLoop]: === Iteration 373 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:00,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:00,219 INFO L82 PathProgramCache]: Analyzing trace with hash 1870440011, now seen corresponding path program 368 times [2021-06-05 03:42:00,219 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:00,219 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765321005] [2021-06-05 03:42:00,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:00,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:00,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:00,351 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:00,351 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765321005] [2021-06-05 03:42:00,351 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765321005] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:00,351 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:00,351 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:00,352 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669207278] [2021-06-05 03:42:00,352 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:00,352 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:00,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:00,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:00,352 INFO L87 Difference]: Start difference. First operand 5247 states and 24921 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:00,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:00,459 INFO L93 Difference]: Finished difference Result 11325 states and 50579 transitions. [2021-06-05 03:42:00,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:00,459 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:00,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:00,485 INFO L225 Difference]: With dead ends: 11325 [2021-06-05 03:42:00,486 INFO L226 Difference]: Without dead ends: 10703 [2021-06-05 03:42:00,486 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 140.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:00,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10703 states. [2021-06-05 03:42:00,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10703 to 5167. [2021-06-05 03:42:00,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5167 states, 5166 states have (on average 4.7543554006968645) internal successors, (24561), 5166 states have internal predecessors, (24561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:00,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 24561 transitions. [2021-06-05 03:42:00,707 INFO L78 Accepts]: Start accepts. Automaton has 5167 states and 24561 transitions. Word has length 29 [2021-06-05 03:42:00,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:00,707 INFO L482 AbstractCegarLoop]: Abstraction has 5167 states and 24561 transitions. [2021-06-05 03:42:00,707 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:00,707 INFO L276 IsEmpty]: Start isEmpty. Operand 5167 states and 24561 transitions. [2021-06-05 03:42:00,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:00,716 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:00,716 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:00,716 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable372 [2021-06-05 03:42:00,716 INFO L430 AbstractCegarLoop]: === Iteration 374 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:00,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:00,716 INFO L82 PathProgramCache]: Analyzing trace with hash -216524405, now seen corresponding path program 369 times [2021-06-05 03:42:00,716 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:00,716 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870068905] [2021-06-05 03:42:00,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:00,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:00,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:00,849 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:00,849 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870068905] [2021-06-05 03:42:00,849 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870068905] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:00,850 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:00,850 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:00,850 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393199770] [2021-06-05 03:42:00,850 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:00,850 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:00,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:00,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:00,850 INFO L87 Difference]: Start difference. First operand 5167 states and 24561 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:00,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:00,971 INFO L93 Difference]: Finished difference Result 11099 states and 49653 transitions. [2021-06-05 03:42:00,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:00,971 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:00,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:00,998 INFO L225 Difference]: With dead ends: 11099 [2021-06-05 03:42:00,998 INFO L226 Difference]: Without dead ends: 10684 [2021-06-05 03:42:00,998 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 157.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:01,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10684 states. [2021-06-05 03:42:01,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10684 to 5215. [2021-06-05 03:42:01,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5215 states, 5214 states have (on average 4.744342155734561) internal successors, (24737), 5214 states have internal predecessors, (24737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:01,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5215 states to 5215 states and 24737 transitions. [2021-06-05 03:42:01,223 INFO L78 Accepts]: Start accepts. Automaton has 5215 states and 24737 transitions. Word has length 29 [2021-06-05 03:42:01,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:01,223 INFO L482 AbstractCegarLoop]: Abstraction has 5215 states and 24737 transitions. [2021-06-05 03:42:01,223 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:01,223 INFO L276 IsEmpty]: Start isEmpty. Operand 5215 states and 24737 transitions. [2021-06-05 03:42:01,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:01,232 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:01,232 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:01,232 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable373 [2021-06-05 03:42:01,232 INFO L430 AbstractCegarLoop]: === Iteration 375 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:01,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:01,232 INFO L82 PathProgramCache]: Analyzing trace with hash -731205331, now seen corresponding path program 370 times [2021-06-05 03:42:01,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:01,233 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683126757] [2021-06-05 03:42:01,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:01,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:01,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:01,368 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:01,368 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683126757] [2021-06-05 03:42:01,368 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683126757] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:01,368 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:01,368 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:01,368 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184212348] [2021-06-05 03:42:01,368 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:01,368 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:01,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:01,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:01,369 INFO L87 Difference]: Start difference. First operand 5215 states and 24737 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:01,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:01,484 INFO L93 Difference]: Finished difference Result 11159 states and 49869 transitions. [2021-06-05 03:42:01,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:01,484 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:01,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:01,510 INFO L225 Difference]: With dead ends: 11159 [2021-06-05 03:42:01,511 INFO L226 Difference]: Without dead ends: 10636 [2021-06-05 03:42:01,511 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 160.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:01,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10636 states. [2021-06-05 03:42:01,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10636 to 5167. [2021-06-05 03:42:01,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5167 states, 5166 states have (on average 4.749709639953543) internal successors, (24537), 5166 states have internal predecessors, (24537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:01,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 24537 transitions. [2021-06-05 03:42:01,736 INFO L78 Accepts]: Start accepts. Automaton has 5167 states and 24537 transitions. Word has length 29 [2021-06-05 03:42:01,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:01,736 INFO L482 AbstractCegarLoop]: Abstraction has 5167 states and 24537 transitions. [2021-06-05 03:42:01,736 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:01,736 INFO L276 IsEmpty]: Start isEmpty. Operand 5167 states and 24537 transitions. [2021-06-05 03:42:01,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:01,745 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:01,745 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:01,745 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable374 [2021-06-05 03:42:01,745 INFO L430 AbstractCegarLoop]: === Iteration 376 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:01,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:01,745 INFO L82 PathProgramCache]: Analyzing trace with hash 7622957, now seen corresponding path program 371 times [2021-06-05 03:42:01,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:01,745 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483166646] [2021-06-05 03:42:01,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:01,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:01,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:01,871 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:01,871 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483166646] [2021-06-05 03:42:01,871 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483166646] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:01,871 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:01,871 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:01,871 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043442786] [2021-06-05 03:42:01,871 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:01,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:01,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:01,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:01,871 INFO L87 Difference]: Start difference. First operand 5167 states and 24537 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:01,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:01,967 INFO L93 Difference]: Finished difference Result 11415 states and 50974 transitions. [2021-06-05 03:42:01,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:01,967 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:01,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:01,993 INFO L225 Difference]: With dead ends: 11415 [2021-06-05 03:42:01,994 INFO L226 Difference]: Without dead ends: 10873 [2021-06-05 03:42:01,994 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 130.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:02,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10873 states. [2021-06-05 03:42:02,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10873 to 5277. [2021-06-05 03:42:02,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5277 states, 5276 states have (on average 4.727445034116755) internal successors, (24942), 5276 states have internal predecessors, (24942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:02,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5277 states to 5277 states and 24942 transitions. [2021-06-05 03:42:02,216 INFO L78 Accepts]: Start accepts. Automaton has 5277 states and 24942 transitions. Word has length 29 [2021-06-05 03:42:02,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:02,216 INFO L482 AbstractCegarLoop]: Abstraction has 5277 states and 24942 transitions. [2021-06-05 03:42:02,216 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:02,216 INFO L276 IsEmpty]: Start isEmpty. Operand 5277 states and 24942 transitions. [2021-06-05 03:42:02,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:02,225 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:02,225 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:02,225 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable375 [2021-06-05 03:42:02,225 INFO L430 AbstractCegarLoop]: === Iteration 377 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:02,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:02,225 INFO L82 PathProgramCache]: Analyzing trace with hash -733329141, now seen corresponding path program 372 times [2021-06-05 03:42:02,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:02,225 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690873265] [2021-06-05 03:42:02,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:02,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:02,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:02,349 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:02,349 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690873265] [2021-06-05 03:42:02,349 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690873265] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:02,349 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:02,349 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:02,349 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209329811] [2021-06-05 03:42:02,349 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:02,349 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:02,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:02,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:02,349 INFO L87 Difference]: Start difference. First operand 5277 states and 24942 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:02,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:02,474 INFO L93 Difference]: Finished difference Result 11348 states and 50601 transitions. [2021-06-05 03:42:02,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:02,474 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:02,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:02,554 INFO L225 Difference]: With dead ends: 11348 [2021-06-05 03:42:02,554 INFO L226 Difference]: Without dead ends: 10723 [2021-06-05 03:42:02,555 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 148.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:02,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10723 states. [2021-06-05 03:42:02,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10723 to 5127. [2021-06-05 03:42:02,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5127 states, 5126 states have (on average 4.756340226297308) internal successors, (24381), 5126 states have internal predecessors, (24381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:02,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5127 states to 5127 states and 24381 transitions. [2021-06-05 03:42:02,777 INFO L78 Accepts]: Start accepts. Automaton has 5127 states and 24381 transitions. Word has length 29 [2021-06-05 03:42:02,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:02,777 INFO L482 AbstractCegarLoop]: Abstraction has 5127 states and 24381 transitions. [2021-06-05 03:42:02,777 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:02,777 INFO L276 IsEmpty]: Start isEmpty. Operand 5127 states and 24381 transitions. [2021-06-05 03:42:02,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:02,785 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:02,785 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:02,785 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable376 [2021-06-05 03:42:02,785 INFO L430 AbstractCegarLoop]: === Iteration 378 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:02,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:02,786 INFO L82 PathProgramCache]: Analyzing trace with hash 1622703401, now seen corresponding path program 373 times [2021-06-05 03:42:02,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:02,786 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710698856] [2021-06-05 03:42:02,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:02,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:02,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:02,906 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:02,906 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710698856] [2021-06-05 03:42:02,906 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710698856] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:02,906 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:02,906 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:02,906 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423097106] [2021-06-05 03:42:02,906 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:02,906 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:02,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:02,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:02,907 INFO L87 Difference]: Start difference. First operand 5127 states and 24381 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:03,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:03,036 INFO L93 Difference]: Finished difference Result 10762 states and 48167 transitions. [2021-06-05 03:42:03,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:03,037 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:03,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:03,063 INFO L225 Difference]: With dead ends: 10762 [2021-06-05 03:42:03,063 INFO L226 Difference]: Without dead ends: 10347 [2021-06-05 03:42:03,063 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 143.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:03,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10347 states. [2021-06-05 03:42:03,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10347 to 5175. [2021-06-05 03:42:03,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5175 states, 5174 states have (on average 4.749323540780828) internal successors, (24573), 5174 states have internal predecessors, (24573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:03,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5175 states to 5175 states and 24573 transitions. [2021-06-05 03:42:03,286 INFO L78 Accepts]: Start accepts. Automaton has 5175 states and 24573 transitions. Word has length 29 [2021-06-05 03:42:03,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:03,286 INFO L482 AbstractCegarLoop]: Abstraction has 5175 states and 24573 transitions. [2021-06-05 03:42:03,286 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:03,286 INFO L276 IsEmpty]: Start isEmpty. Operand 5175 states and 24573 transitions. [2021-06-05 03:42:03,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:03,295 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:03,295 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:03,295 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable377 [2021-06-05 03:42:03,295 INFO L430 AbstractCegarLoop]: === Iteration 379 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:03,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:03,295 INFO L82 PathProgramCache]: Analyzing trace with hash -779417593, now seen corresponding path program 374 times [2021-06-05 03:42:03,295 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:03,295 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300573884] [2021-06-05 03:42:03,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:03,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:03,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:03,418 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:03,418 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300573884] [2021-06-05 03:42:03,418 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300573884] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:03,418 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:03,418 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:03,418 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288734822] [2021-06-05 03:42:03,418 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:03,418 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:03,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:03,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:03,419 INFO L87 Difference]: Start difference. First operand 5175 states and 24573 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:03,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:03,545 INFO L93 Difference]: Finished difference Result 10762 states and 48135 transitions. [2021-06-05 03:42:03,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:03,545 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:03,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:03,570 INFO L225 Difference]: With dead ends: 10762 [2021-06-05 03:42:03,571 INFO L226 Difference]: Without dead ends: 10315 [2021-06-05 03:42:03,571 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 129.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:03,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10315 states. [2021-06-05 03:42:03,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10315 to 5143. [2021-06-05 03:42:03,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.753986775573707) internal successors, (24445), 5142 states have internal predecessors, (24445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:03,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24445 transitions. [2021-06-05 03:42:03,789 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24445 transitions. Word has length 29 [2021-06-05 03:42:03,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:03,789 INFO L482 AbstractCegarLoop]: Abstraction has 5143 states and 24445 transitions. [2021-06-05 03:42:03,789 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:03,789 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24445 transitions. [2021-06-05 03:42:03,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:03,798 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:03,798 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:03,798 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable378 [2021-06-05 03:42:03,798 INFO L430 AbstractCegarLoop]: === Iteration 380 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:03,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:03,798 INFO L82 PathProgramCache]: Analyzing trace with hash 1141801355, now seen corresponding path program 375 times [2021-06-05 03:42:03,798 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:03,798 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685680829] [2021-06-05 03:42:03,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:03,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:03,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:03,936 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:03,936 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685680829] [2021-06-05 03:42:03,936 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685680829] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:03,936 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:03,936 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:03,936 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089578197] [2021-06-05 03:42:03,936 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:03,936 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:03,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:03,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:03,937 INFO L87 Difference]: Start difference. First operand 5143 states and 24445 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:04,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:04,053 INFO L93 Difference]: Finished difference Result 10838 states and 48495 transitions. [2021-06-05 03:42:04,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:04,053 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:04,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:04,080 INFO L225 Difference]: With dead ends: 10838 [2021-06-05 03:42:04,080 INFO L226 Difference]: Without dead ends: 10423 [2021-06-05 03:42:04,080 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 161.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:04,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10423 states. [2021-06-05 03:42:04,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10423 to 5191. [2021-06-05 03:42:04,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.74393063583815) internal successors, (24621), 5190 states have internal predecessors, (24621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:04,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24621 transitions. [2021-06-05 03:42:04,301 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24621 transitions. Word has length 29 [2021-06-05 03:42:04,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:04,301 INFO L482 AbstractCegarLoop]: Abstraction has 5191 states and 24621 transitions. [2021-06-05 03:42:04,301 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:04,301 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24621 transitions. [2021-06-05 03:42:04,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:04,310 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:04,310 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:04,310 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable379 [2021-06-05 03:42:04,310 INFO L430 AbstractCegarLoop]: === Iteration 381 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:04,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:04,310 INFO L82 PathProgramCache]: Analyzing trace with hash -854317877, now seen corresponding path program 376 times [2021-06-05 03:42:04,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:04,310 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209854064] [2021-06-05 03:42:04,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:04,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:04,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:04,447 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:04,447 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209854064] [2021-06-05 03:42:04,447 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209854064] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:04,447 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:04,447 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:04,447 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883441393] [2021-06-05 03:42:04,447 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:04,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:04,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:04,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:04,447 INFO L87 Difference]: Start difference. First operand 5191 states and 24621 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:04,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:04,571 INFO L93 Difference]: Finished difference Result 10898 states and 48711 transitions. [2021-06-05 03:42:04,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:04,571 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:04,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:04,596 INFO L225 Difference]: With dead ends: 10898 [2021-06-05 03:42:04,597 INFO L226 Difference]: Without dead ends: 10375 [2021-06-05 03:42:04,597 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 161.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:04,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10375 states. [2021-06-05 03:42:04,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10375 to 5143. [2021-06-05 03:42:04,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.750875145857643) internal successors, (24429), 5142 states have internal predecessors, (24429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:04,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24429 transitions. [2021-06-05 03:42:04,817 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24429 transitions. Word has length 29 [2021-06-05 03:42:04,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:04,817 INFO L482 AbstractCegarLoop]: Abstraction has 5143 states and 24429 transitions. [2021-06-05 03:42:04,817 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:04,817 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24429 transitions. [2021-06-05 03:42:04,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:04,826 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:04,826 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:04,826 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable380 [2021-06-05 03:42:04,826 INFO L430 AbstractCegarLoop]: === Iteration 382 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:04,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:04,826 INFO L82 PathProgramCache]: Analyzing trace with hash -910113657, now seen corresponding path program 377 times [2021-06-05 03:42:04,826 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:04,826 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799134136] [2021-06-05 03:42:04,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:04,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:04,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:04,959 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:04,959 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799134136] [2021-06-05 03:42:04,959 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799134136] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:04,959 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:04,959 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:04,959 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699136126] [2021-06-05 03:42:04,959 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:04,959 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:04,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:04,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:04,959 INFO L87 Difference]: Start difference. First operand 5143 states and 24429 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:05,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:05,051 INFO L93 Difference]: Finished difference Result 10838 states and 48479 transitions. [2021-06-05 03:42:05,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:05,051 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:05,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:05,076 INFO L225 Difference]: With dead ends: 10838 [2021-06-05 03:42:05,076 INFO L226 Difference]: Without dead ends: 10423 [2021-06-05 03:42:05,077 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 139.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:05,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10423 states. [2021-06-05 03:42:05,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10423 to 5191. [2021-06-05 03:42:05,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.740847784200385) internal successors, (24605), 5190 states have internal predecessors, (24605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:05,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24605 transitions. [2021-06-05 03:42:05,296 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24605 transitions. Word has length 29 [2021-06-05 03:42:05,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:05,297 INFO L482 AbstractCegarLoop]: Abstraction has 5191 states and 24605 transitions. [2021-06-05 03:42:05,297 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:05,297 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24605 transitions. [2021-06-05 03:42:05,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:05,305 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:05,305 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:05,305 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable381 [2021-06-05 03:42:05,305 INFO L430 AbstractCegarLoop]: === Iteration 383 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:05,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:05,306 INFO L82 PathProgramCache]: Analyzing trace with hash 170948969, now seen corresponding path program 378 times [2021-06-05 03:42:05,306 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:05,306 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574298931] [2021-06-05 03:42:05,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:05,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:05,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:05,441 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:05,441 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574298931] [2021-06-05 03:42:05,442 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574298931] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:05,442 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:05,442 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:05,442 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608440384] [2021-06-05 03:42:05,442 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:05,442 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:05,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:05,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:05,442 INFO L87 Difference]: Start difference. First operand 5191 states and 24605 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:05,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:05,556 INFO L93 Difference]: Finished difference Result 10898 states and 48695 transitions. [2021-06-05 03:42:05,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:05,557 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:05,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:05,583 INFO L225 Difference]: With dead ends: 10898 [2021-06-05 03:42:05,583 INFO L226 Difference]: Without dead ends: 10359 [2021-06-05 03:42:05,583 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 158.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:05,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10359 states. [2021-06-05 03:42:05,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10359 to 5127. [2021-06-05 03:42:05,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5127 states, 5126 states have (on average 4.7547795552087395) internal successors, (24373), 5126 states have internal predecessors, (24373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:05,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5127 states to 5127 states and 24373 transitions. [2021-06-05 03:42:05,803 INFO L78 Accepts]: Start accepts. Automaton has 5127 states and 24373 transitions. Word has length 29 [2021-06-05 03:42:05,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:05,803 INFO L482 AbstractCegarLoop]: Abstraction has 5127 states and 24373 transitions. [2021-06-05 03:42:05,803 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:05,803 INFO L276 IsEmpty]: Start isEmpty. Operand 5127 states and 24373 transitions. [2021-06-05 03:42:05,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:05,812 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:05,812 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:05,812 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable382 [2021-06-05 03:42:05,812 INFO L430 AbstractCegarLoop]: === Iteration 384 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:05,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:05,812 INFO L82 PathProgramCache]: Analyzing trace with hash 1892581, now seen corresponding path program 379 times [2021-06-05 03:42:05,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:05,813 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580258877] [2021-06-05 03:42:05,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:05,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:05,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:05,951 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:05,951 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580258877] [2021-06-05 03:42:05,951 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580258877] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:05,951 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:05,951 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:05,951 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599747466] [2021-06-05 03:42:05,952 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:05,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:05,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:05,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:05,952 INFO L87 Difference]: Start difference. First operand 5127 states and 24373 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:06,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:06,056 INFO L93 Difference]: Finished difference Result 11325 states and 50603 transitions. [2021-06-05 03:42:06,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:06,058 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:06,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:06,086 INFO L225 Difference]: With dead ends: 11325 [2021-06-05 03:42:06,086 INFO L226 Difference]: Without dead ends: 10783 [2021-06-05 03:42:06,087 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 136.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:06,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10783 states. [2021-06-05 03:42:06,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10783 to 5247. [2021-06-05 03:42:06,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5247 states, 5246 states have (on average 4.739801753717118) internal successors, (24865), 5246 states have internal predecessors, (24865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:06,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5247 states to 5247 states and 24865 transitions. [2021-06-05 03:42:06,319 INFO L78 Accepts]: Start accepts. Automaton has 5247 states and 24865 transitions. Word has length 29 [2021-06-05 03:42:06,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:06,319 INFO L482 AbstractCegarLoop]: Abstraction has 5247 states and 24865 transitions. [2021-06-05 03:42:06,319 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:06,319 INFO L276 IsEmpty]: Start isEmpty. Operand 5247 states and 24865 transitions. [2021-06-05 03:42:06,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:06,328 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:06,328 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:06,328 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable383 [2021-06-05 03:42:06,329 INFO L430 AbstractCegarLoop]: === Iteration 385 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:06,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:06,329 INFO L82 PathProgramCache]: Analyzing trace with hash -204915385, now seen corresponding path program 380 times [2021-06-05 03:42:06,329 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:06,329 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60513204] [2021-06-05 03:42:06,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:06,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:06,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:06,457 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:06,458 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60513204] [2021-06-05 03:42:06,458 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60513204] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:06,458 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:06,458 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:06,458 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440866872] [2021-06-05 03:42:06,458 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:06,458 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:06,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:06,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:06,459 INFO L87 Difference]: Start difference. First operand 5247 states and 24865 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:06,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:06,555 INFO L93 Difference]: Finished difference Result 11198 states and 49996 transitions. [2021-06-05 03:42:06,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:06,555 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:06,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:06,581 INFO L225 Difference]: With dead ends: 11198 [2021-06-05 03:42:06,581 INFO L226 Difference]: Without dead ends: 10703 [2021-06-05 03:42:06,581 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 135.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:06,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10703 states. [2021-06-05 03:42:06,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10703 to 5167. [2021-06-05 03:42:06,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5167 states, 5166 states have (on average 4.749709639953543) internal successors, (24537), 5166 states have internal predecessors, (24537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:06,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 24537 transitions. [2021-06-05 03:42:06,808 INFO L78 Accepts]: Start accepts. Automaton has 5167 states and 24537 transitions. Word has length 29 [2021-06-05 03:42:06,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:06,808 INFO L482 AbstractCegarLoop]: Abstraction has 5167 states and 24537 transitions. [2021-06-05 03:42:06,809 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:06,809 INFO L276 IsEmpty]: Start isEmpty. Operand 5167 states and 24537 transitions. [2021-06-05 03:42:06,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:06,818 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:06,818 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:06,818 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable384 [2021-06-05 03:42:06,818 INFO L430 AbstractCegarLoop]: === Iteration 386 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:06,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:06,818 INFO L82 PathProgramCache]: Analyzing trace with hash -479009465, now seen corresponding path program 381 times [2021-06-05 03:42:06,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:06,818 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560291194] [2021-06-05 03:42:06,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:06,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:06,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:06,938 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:06,939 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560291194] [2021-06-05 03:42:06,939 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560291194] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:06,939 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:06,939 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:06,939 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849793752] [2021-06-05 03:42:06,939 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:06,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:06,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:06,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:06,939 INFO L87 Difference]: Start difference. First operand 5167 states and 24537 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:07,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:07,044 INFO L93 Difference]: Finished difference Result 11415 states and 50974 transitions. [2021-06-05 03:42:07,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:07,044 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:07,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:07,070 INFO L225 Difference]: With dead ends: 11415 [2021-06-05 03:42:07,071 INFO L226 Difference]: Without dead ends: 10873 [2021-06-05 03:42:07,071 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 127.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:07,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10873 states. [2021-06-05 03:42:07,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10873 to 5277. [2021-06-05 03:42:07,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5277 states, 5276 states have (on average 4.727445034116755) internal successors, (24942), 5276 states have internal predecessors, (24942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:07,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5277 states to 5277 states and 24942 transitions. [2021-06-05 03:42:07,297 INFO L78 Accepts]: Start accepts. Automaton has 5277 states and 24942 transitions. Word has length 29 [2021-06-05 03:42:07,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:07,297 INFO L482 AbstractCegarLoop]: Abstraction has 5277 states and 24942 transitions. [2021-06-05 03:42:07,297 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:07,297 INFO L276 IsEmpty]: Start isEmpty. Operand 5277 states and 24942 transitions. [2021-06-05 03:42:07,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:07,305 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:07,305 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:07,306 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable385 [2021-06-05 03:42:07,306 INFO L430 AbstractCegarLoop]: === Iteration 387 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:07,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:07,306 INFO L82 PathProgramCache]: Analyzing trace with hash 839840967, now seen corresponding path program 382 times [2021-06-05 03:42:07,306 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:07,306 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054308351] [2021-06-05 03:42:07,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:07,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:07,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:07,426 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:07,426 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054308351] [2021-06-05 03:42:07,426 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054308351] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:07,426 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:07,426 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:07,426 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993653590] [2021-06-05 03:42:07,426 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:07,426 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:07,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:07,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:07,427 INFO L87 Difference]: Start difference. First operand 5277 states and 24942 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:07,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:07,542 INFO L93 Difference]: Finished difference Result 11348 states and 50601 transitions. [2021-06-05 03:42:07,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:07,542 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:07,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:07,569 INFO L225 Difference]: With dead ends: 11348 [2021-06-05 03:42:07,569 INFO L226 Difference]: Without dead ends: 10763 [2021-06-05 03:42:07,569 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 144.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:07,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10763 states. [2021-06-05 03:42:07,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10763 to 5167. [2021-06-05 03:42:07,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5167 states, 5166 states have (on average 4.74196670538134) internal successors, (24497), 5166 states have internal predecessors, (24497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:07,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 24497 transitions. [2021-06-05 03:42:07,793 INFO L78 Accepts]: Start accepts. Automaton has 5167 states and 24497 transitions. Word has length 29 [2021-06-05 03:42:07,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:07,793 INFO L482 AbstractCegarLoop]: Abstraction has 5167 states and 24497 transitions. [2021-06-05 03:42:07,793 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:07,793 INFO L276 IsEmpty]: Start isEmpty. Operand 5167 states and 24497 transitions. [2021-06-05 03:42:07,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:07,802 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:07,802 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:07,802 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable386 [2021-06-05 03:42:07,802 INFO L430 AbstractCegarLoop]: === Iteration 388 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:07,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:07,802 INFO L82 PathProgramCache]: Analyzing trace with hash -2071932759, now seen corresponding path program 383 times [2021-06-05 03:42:07,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:07,802 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347620486] [2021-06-05 03:42:07,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:07,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:07,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:07,933 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:07,933 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347620486] [2021-06-05 03:42:07,933 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347620486] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:07,933 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:07,933 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:07,933 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697266037] [2021-06-05 03:42:07,933 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:07,933 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:07,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:07,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:07,934 INFO L87 Difference]: Start difference. First operand 5167 states and 24497 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:08,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:08,031 INFO L93 Difference]: Finished difference Result 11099 states and 49589 transitions. [2021-06-05 03:42:08,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:08,031 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:08,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:08,058 INFO L225 Difference]: With dead ends: 11099 [2021-06-05 03:42:08,058 INFO L226 Difference]: Without dead ends: 10684 [2021-06-05 03:42:08,058 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 137.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:08,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10684 states. [2021-06-05 03:42:08,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10684 to 5215. [2021-06-05 03:42:08,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5215 states, 5214 states have (on average 4.732067510548523) internal successors, (24673), 5214 states have internal predecessors, (24673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:08,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5215 states to 5215 states and 24673 transitions. [2021-06-05 03:42:08,282 INFO L78 Accepts]: Start accepts. Automaton has 5215 states and 24673 transitions. Word has length 29 [2021-06-05 03:42:08,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:08,282 INFO L482 AbstractCegarLoop]: Abstraction has 5215 states and 24673 transitions. [2021-06-05 03:42:08,282 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:08,282 INFO L276 IsEmpty]: Start isEmpty. Operand 5215 states and 24673 transitions. [2021-06-05 03:42:08,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:08,291 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:08,291 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:08,291 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable387 [2021-06-05 03:42:08,291 INFO L430 AbstractCegarLoop]: === Iteration 389 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:08,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:08,291 INFO L82 PathProgramCache]: Analyzing trace with hash 1376237575, now seen corresponding path program 384 times [2021-06-05 03:42:08,291 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:08,291 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798749936] [2021-06-05 03:42:08,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:08,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:08,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:08,422 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:08,422 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798749936] [2021-06-05 03:42:08,423 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798749936] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:08,423 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:08,423 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:08,423 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528086405] [2021-06-05 03:42:08,423 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:08,423 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:08,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:08,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:08,423 INFO L87 Difference]: Start difference. First operand 5215 states and 24673 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:08,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:08,545 INFO L93 Difference]: Finished difference Result 11159 states and 49805 transitions. [2021-06-05 03:42:08,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:08,546 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:08,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:08,573 INFO L225 Difference]: With dead ends: 11159 [2021-06-05 03:42:08,573 INFO L226 Difference]: Without dead ends: 10580 [2021-06-05 03:42:08,573 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 156.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:08,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10580 states. [2021-06-05 03:42:08,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10580 to 5111. [2021-06-05 03:42:08,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5111 states, 5110 states have (on average 4.758708414872799) internal successors, (24317), 5110 states have internal predecessors, (24317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:08,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5111 states to 5111 states and 24317 transitions. [2021-06-05 03:42:08,807 INFO L78 Accepts]: Start accepts. Automaton has 5111 states and 24317 transitions. Word has length 29 [2021-06-05 03:42:08,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:08,807 INFO L482 AbstractCegarLoop]: Abstraction has 5111 states and 24317 transitions. [2021-06-05 03:42:08,807 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:08,807 INFO L276 IsEmpty]: Start isEmpty. Operand 5111 states and 24317 transitions. [2021-06-05 03:42:08,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:08,815 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:08,815 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:08,815 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable388 [2021-06-05 03:42:08,815 INFO L430 AbstractCegarLoop]: === Iteration 390 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:08,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:08,816 INFO L82 PathProgramCache]: Analyzing trace with hash -318531893, now seen corresponding path program 385 times [2021-06-05 03:42:08,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:08,816 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367892102] [2021-06-05 03:42:08,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:08,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:08,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:08,951 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:08,951 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367892102] [2021-06-05 03:42:08,951 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367892102] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:08,951 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:08,951 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:08,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492065746] [2021-06-05 03:42:08,952 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:08,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:08,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:08,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:08,952 INFO L87 Difference]: Start difference. First operand 5111 states and 24317 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:09,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:09,070 INFO L93 Difference]: Finished difference Result 11078 states and 49554 transitions. [2021-06-05 03:42:09,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:09,071 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:09,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:09,097 INFO L225 Difference]: With dead ends: 11078 [2021-06-05 03:42:09,097 INFO L226 Difference]: Without dead ends: 10663 [2021-06-05 03:42:09,097 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 159.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:09,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10663 states. [2021-06-05 03:42:09,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10663 to 5239. [2021-06-05 03:42:09,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5239 states, 5238 states have (on average 4.75085910652921) internal successors, (24885), 5238 states have internal predecessors, (24885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:09,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5239 states to 5239 states and 24885 transitions. [2021-06-05 03:42:09,324 INFO L78 Accepts]: Start accepts. Automaton has 5239 states and 24885 transitions. Word has length 29 [2021-06-05 03:42:09,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:09,324 INFO L482 AbstractCegarLoop]: Abstraction has 5239 states and 24885 transitions. [2021-06-05 03:42:09,324 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:09,324 INFO L276 IsEmpty]: Start isEmpty. Operand 5239 states and 24885 transitions. [2021-06-05 03:42:09,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:09,333 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:09,333 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:09,333 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable389 [2021-06-05 03:42:09,333 INFO L430 AbstractCegarLoop]: === Iteration 391 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:09,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:09,334 INFO L82 PathProgramCache]: Analyzing trace with hash 1436288715, now seen corresponding path program 386 times [2021-06-05 03:42:09,334 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:09,334 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20128696] [2021-06-05 03:42:09,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:09,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:09,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:09,471 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:09,471 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20128696] [2021-06-05 03:42:09,471 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20128696] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:09,471 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:09,471 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:09,471 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992307272] [2021-06-05 03:42:09,472 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:09,472 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:09,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:09,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:09,472 INFO L87 Difference]: Start difference. First operand 5239 states and 24885 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:09,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:09,572 INFO L93 Difference]: Finished difference Result 11205 states and 50033 transitions. [2021-06-05 03:42:09,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:09,573 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:09,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:09,599 INFO L225 Difference]: With dead ends: 11205 [2021-06-05 03:42:09,599 INFO L226 Difference]: Without dead ends: 10583 [2021-06-05 03:42:09,600 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 145.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:09,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10583 states. [2021-06-05 03:42:09,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10583 to 5159. [2021-06-05 03:42:09,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5159 states, 5158 states have (on average 4.756300891818534) internal successors, (24533), 5158 states have internal predecessors, (24533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:09,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5159 states to 5159 states and 24533 transitions. [2021-06-05 03:42:09,826 INFO L78 Accepts]: Start accepts. Automaton has 5159 states and 24533 transitions. Word has length 29 [2021-06-05 03:42:09,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:09,826 INFO L482 AbstractCegarLoop]: Abstraction has 5159 states and 24533 transitions. [2021-06-05 03:42:09,826 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:09,826 INFO L276 IsEmpty]: Start isEmpty. Operand 5159 states and 24533 transitions. [2021-06-05 03:42:09,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:09,835 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:09,835 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:09,835 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable390 [2021-06-05 03:42:09,835 INFO L430 AbstractCegarLoop]: === Iteration 392 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:09,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:09,835 INFO L82 PathProgramCache]: Analyzing trace with hash -233743895, now seen corresponding path program 387 times [2021-06-05 03:42:09,835 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:09,835 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305793929] [2021-06-05 03:42:09,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:09,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:09,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:09,958 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:09,958 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305793929] [2021-06-05 03:42:09,958 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305793929] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:09,958 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:09,958 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:09,958 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524219617] [2021-06-05 03:42:09,958 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:09,958 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:09,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:09,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:09,958 INFO L87 Difference]: Start difference. First operand 5159 states and 24533 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:10,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:10,075 INFO L93 Difference]: Finished difference Result 10903 states and 48771 transitions. [2021-06-05 03:42:10,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:10,076 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:10,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:10,101 INFO L225 Difference]: With dead ends: 10903 [2021-06-05 03:42:10,101 INFO L226 Difference]: Without dead ends: 10488 [2021-06-05 03:42:10,102 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 146.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:10,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10488 states. [2021-06-05 03:42:10,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10488 to 5191. [2021-06-05 03:42:10,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.7485549132947975) internal successors, (24645), 5190 states have internal predecessors, (24645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:10,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24645 transitions. [2021-06-05 03:42:10,343 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24645 transitions. Word has length 29 [2021-06-05 03:42:10,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:10,344 INFO L482 AbstractCegarLoop]: Abstraction has 5191 states and 24645 transitions. [2021-06-05 03:42:10,344 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:10,344 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24645 transitions. [2021-06-05 03:42:10,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:10,352 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:10,352 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:10,353 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable391 [2021-06-05 03:42:10,353 INFO L430 AbstractCegarLoop]: === Iteration 393 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:10,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:10,353 INFO L82 PathProgramCache]: Analyzing trace with hash 1659102407, now seen corresponding path program 388 times [2021-06-05 03:42:10,353 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:10,353 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700617957] [2021-06-05 03:42:10,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:10,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:10,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:10,478 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:10,478 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700617957] [2021-06-05 03:42:10,478 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700617957] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:10,478 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:10,478 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:10,478 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623800283] [2021-06-05 03:42:10,478 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:10,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:10,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:10,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:10,478 INFO L87 Difference]: Start difference. First operand 5191 states and 24645 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:10,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:10,579 INFO L93 Difference]: Finished difference Result 10903 states and 48739 transitions. [2021-06-05 03:42:10,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:10,579 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:10,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:10,604 INFO L225 Difference]: With dead ends: 10903 [2021-06-05 03:42:10,605 INFO L226 Difference]: Without dead ends: 10456 [2021-06-05 03:42:10,605 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 131.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:10,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10456 states. [2021-06-05 03:42:10,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10456 to 5159. [2021-06-05 03:42:10,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5159 states, 5158 states have (on average 4.7531989143078714) internal successors, (24517), 5158 states have internal predecessors, (24517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:10,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5159 states to 5159 states and 24517 transitions. [2021-06-05 03:42:10,825 INFO L78 Accepts]: Start accepts. Automaton has 5159 states and 24517 transitions. Word has length 29 [2021-06-05 03:42:10,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:10,825 INFO L482 AbstractCegarLoop]: Abstraction has 5159 states and 24517 transitions. [2021-06-05 03:42:10,825 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:10,825 INFO L276 IsEmpty]: Start isEmpty. Operand 5159 states and 24517 transitions. [2021-06-05 03:42:10,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:10,833 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:10,833 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:10,833 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable392 [2021-06-05 03:42:10,833 INFO L430 AbstractCegarLoop]: === Iteration 394 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:10,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:10,834 INFO L82 PathProgramCache]: Analyzing trace with hash -1914261339, now seen corresponding path program 389 times [2021-06-05 03:42:10,834 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:10,834 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546375594] [2021-06-05 03:42:10,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:10,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:10,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:10,965 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:10,965 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546375594] [2021-06-05 03:42:10,965 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546375594] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:10,965 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:10,965 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:10,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439980180] [2021-06-05 03:42:10,966 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:10,966 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:10,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:10,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:10,966 INFO L87 Difference]: Start difference. First operand 5159 states and 24517 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:11,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:11,065 INFO L93 Difference]: Finished difference Result 11205 states and 50033 transitions. [2021-06-05 03:42:11,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:11,065 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:11,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:11,091 INFO L225 Difference]: With dead ends: 11205 [2021-06-05 03:42:11,091 INFO L226 Difference]: Without dead ends: 10663 [2021-06-05 03:42:11,091 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 138.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:11,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10663 states. [2021-06-05 03:42:11,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10663 to 5239. [2021-06-05 03:42:11,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5239 states, 5238 states have (on average 4.735586101565483) internal successors, (24805), 5238 states have internal predecessors, (24805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:11,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5239 states to 5239 states and 24805 transitions. [2021-06-05 03:42:11,314 INFO L78 Accepts]: Start accepts. Automaton has 5239 states and 24805 transitions. Word has length 29 [2021-06-05 03:42:11,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:11,314 INFO L482 AbstractCegarLoop]: Abstraction has 5239 states and 24805 transitions. [2021-06-05 03:42:11,314 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:11,314 INFO L276 IsEmpty]: Start isEmpty. Operand 5239 states and 24805 transitions. [2021-06-05 03:42:11,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:11,322 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:11,322 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:11,323 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable393 [2021-06-05 03:42:11,323 INFO L430 AbstractCegarLoop]: === Iteration 395 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:11,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:11,323 INFO L82 PathProgramCache]: Analyzing trace with hash -2121069305, now seen corresponding path program 390 times [2021-06-05 03:42:11,323 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:11,323 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923005940] [2021-06-05 03:42:11,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:11,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:11,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:11,454 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:11,454 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923005940] [2021-06-05 03:42:11,454 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923005940] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:11,454 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:11,454 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:11,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213803762] [2021-06-05 03:42:11,455 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:11,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:11,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:11,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:11,455 INFO L87 Difference]: Start difference. First operand 5239 states and 24805 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:11,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:11,549 INFO L93 Difference]: Finished difference Result 11078 states and 49426 transitions. [2021-06-05 03:42:11,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:11,549 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:11,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:11,575 INFO L225 Difference]: With dead ends: 11078 [2021-06-05 03:42:11,575 INFO L226 Difference]: Without dead ends: 10551 [2021-06-05 03:42:11,575 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 138.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:11,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10551 states. [2021-06-05 03:42:11,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10551 to 5127. [2021-06-05 03:42:11,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5127 states, 5126 states have (on average 4.757900897385876) internal successors, (24389), 5126 states have internal predecessors, (24389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:11,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5127 states to 5127 states and 24389 transitions. [2021-06-05 03:42:11,792 INFO L78 Accepts]: Start accepts. Automaton has 5127 states and 24389 transitions. Word has length 29 [2021-06-05 03:42:11,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:11,793 INFO L482 AbstractCegarLoop]: Abstraction has 5127 states and 24389 transitions. [2021-06-05 03:42:11,793 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:11,793 INFO L276 IsEmpty]: Start isEmpty. Operand 5127 states and 24389 transitions. [2021-06-05 03:42:11,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:11,801 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:11,801 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:11,801 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable394 [2021-06-05 03:42:11,801 INFO L430 AbstractCegarLoop]: === Iteration 396 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:11,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:11,801 INFO L82 PathProgramCache]: Analyzing trace with hash 218443467, now seen corresponding path program 391 times [2021-06-05 03:42:11,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:11,801 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875137328] [2021-06-05 03:42:11,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:11,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:11,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:11,983 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:11,983 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875137328] [2021-06-05 03:42:11,983 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875137328] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:11,983 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:11,984 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:11,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695981489] [2021-06-05 03:42:11,984 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:11,984 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:11,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:11,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:11,984 INFO L87 Difference]: Start difference. First operand 5127 states and 24389 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:12,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:12,095 INFO L93 Difference]: Finished difference Result 11186 states and 50054 transitions. [2021-06-05 03:42:12,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:12,096 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:12,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:12,122 INFO L225 Difference]: With dead ends: 11186 [2021-06-05 03:42:12,122 INFO L226 Difference]: Without dead ends: 10771 [2021-06-05 03:42:12,122 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 205.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:12,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10771 states. [2021-06-05 03:42:12,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10771 to 5247. [2021-06-05 03:42:12,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5247 states, 5246 states have (on average 4.748951582157835) internal successors, (24913), 5246 states have internal predecessors, (24913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:12,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5247 states to 5247 states and 24913 transitions. [2021-06-05 03:42:12,346 INFO L78 Accepts]: Start accepts. Automaton has 5247 states and 24913 transitions. Word has length 29 [2021-06-05 03:42:12,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:12,346 INFO L482 AbstractCegarLoop]: Abstraction has 5247 states and 24913 transitions. [2021-06-05 03:42:12,347 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:12,347 INFO L276 IsEmpty]: Start isEmpty. Operand 5247 states and 24913 transitions. [2021-06-05 03:42:12,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:12,355 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:12,355 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:12,355 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable395 [2021-06-05 03:42:12,356 INFO L430 AbstractCegarLoop]: === Iteration 397 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:12,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:12,356 INFO L82 PathProgramCache]: Analyzing trace with hash 1973264075, now seen corresponding path program 392 times [2021-06-05 03:42:12,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:12,356 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679074259] [2021-06-05 03:42:12,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:12,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:12,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:12,487 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:12,487 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679074259] [2021-06-05 03:42:12,487 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679074259] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:12,487 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:12,487 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:12,487 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68740077] [2021-06-05 03:42:12,487 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:12,487 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:12,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:12,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:12,488 INFO L87 Difference]: Start difference. First operand 5247 states and 24913 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:12,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:12,596 INFO L93 Difference]: Finished difference Result 11313 states and 50533 transitions. [2021-06-05 03:42:12,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:12,596 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:12,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:12,622 INFO L225 Difference]: With dead ends: 11313 [2021-06-05 03:42:12,622 INFO L226 Difference]: Without dead ends: 10691 [2021-06-05 03:42:12,622 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 138.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:12,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10691 states. [2021-06-05 03:42:12,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10691 to 5167. [2021-06-05 03:42:12,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5167 states, 5166 states have (on average 4.752806813782423) internal successors, (24553), 5166 states have internal predecessors, (24553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:12,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 24553 transitions. [2021-06-05 03:42:12,845 INFO L78 Accepts]: Start accepts. Automaton has 5167 states and 24553 transitions. Word has length 29 [2021-06-05 03:42:12,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:12,845 INFO L482 AbstractCegarLoop]: Abstraction has 5167 states and 24553 transitions. [2021-06-05 03:42:12,845 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:12,845 INFO L276 IsEmpty]: Start isEmpty. Operand 5167 states and 24553 transitions. [2021-06-05 03:42:12,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:12,854 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:12,854 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:12,854 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable396 [2021-06-05 03:42:12,854 INFO L430 AbstractCegarLoop]: === Iteration 398 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:12,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:12,854 INFO L82 PathProgramCache]: Analyzing trace with hash 1900491275, now seen corresponding path program 393 times [2021-06-05 03:42:12,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:12,854 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600078119] [2021-06-05 03:42:12,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:12,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:12,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:12,969 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:12,969 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600078119] [2021-06-05 03:42:12,969 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600078119] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:12,969 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:12,969 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:12,970 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030737509] [2021-06-05 03:42:12,970 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:12,970 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:12,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:12,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:12,970 INFO L87 Difference]: Start difference. First operand 5167 states and 24553 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:13,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:13,132 INFO L93 Difference]: Finished difference Result 11083 states and 49595 transitions. [2021-06-05 03:42:13,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:13,132 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:13,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:13,167 INFO L225 Difference]: With dead ends: 11083 [2021-06-05 03:42:13,167 INFO L226 Difference]: Without dead ends: 10668 [2021-06-05 03:42:13,167 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 164.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:13,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10668 states. [2021-06-05 03:42:13,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10668 to 5215. [2021-06-05 03:42:13,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5215 states, 5214 states have (on average 4.742807825086306) internal successors, (24729), 5214 states have internal predecessors, (24729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:13,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5215 states to 5215 states and 24729 transitions. [2021-06-05 03:42:13,435 INFO L78 Accepts]: Start accepts. Automaton has 5215 states and 24729 transitions. Word has length 29 [2021-06-05 03:42:13,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:13,435 INFO L482 AbstractCegarLoop]: Abstraction has 5215 states and 24729 transitions. [2021-06-05 03:42:13,435 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:13,435 INFO L276 IsEmpty]: Start isEmpty. Operand 5215 states and 24729 transitions. [2021-06-05 03:42:13,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:13,444 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:13,444 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:13,444 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable397 [2021-06-05 03:42:13,444 INFO L430 AbstractCegarLoop]: === Iteration 399 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:13,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:13,444 INFO L82 PathProgramCache]: Analyzing trace with hash 770138413, now seen corresponding path program 394 times [2021-06-05 03:42:13,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:13,444 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809258968] [2021-06-05 03:42:13,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:13,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:13,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:13,561 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:13,561 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809258968] [2021-06-05 03:42:13,561 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809258968] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:13,561 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:13,561 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:13,561 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219523499] [2021-06-05 03:42:13,561 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:13,561 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:13,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:13,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:13,561 INFO L87 Difference]: Start difference. First operand 5215 states and 24729 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:13,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:13,686 INFO L93 Difference]: Finished difference Result 11139 states and 49799 transitions. [2021-06-05 03:42:13,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:13,687 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:13,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:13,713 INFO L225 Difference]: With dead ends: 11139 [2021-06-05 03:42:13,713 INFO L226 Difference]: Without dead ends: 10620 [2021-06-05 03:42:13,714 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 141.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:13,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10620 states. [2021-06-05 03:42:13,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10620 to 5167. [2021-06-05 03:42:13,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5167 states, 5166 states have (on average 4.748161053039102) internal successors, (24529), 5166 states have internal predecessors, (24529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:13,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 24529 transitions. [2021-06-05 03:42:13,935 INFO L78 Accepts]: Start accepts. Automaton has 5167 states and 24529 transitions. Word has length 29 [2021-06-05 03:42:13,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:13,936 INFO L482 AbstractCegarLoop]: Abstraction has 5167 states and 24529 transitions. [2021-06-05 03:42:13,936 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:13,936 INFO L276 IsEmpty]: Start isEmpty. Operand 5167 states and 24529 transitions. [2021-06-05 03:42:13,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:13,944 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:13,944 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:13,944 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable398 [2021-06-05 03:42:13,944 INFO L430 AbstractCegarLoop]: === Iteration 400 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:13,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:13,945 INFO L82 PathProgramCache]: Analyzing trace with hash 836768045, now seen corresponding path program 395 times [2021-06-05 03:42:13,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:13,945 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099780481] [2021-06-05 03:42:13,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:13,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:14,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:14,073 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:14,074 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099780481] [2021-06-05 03:42:14,074 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099780481] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:14,074 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:14,074 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:14,074 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733943360] [2021-06-05 03:42:14,074 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:14,074 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:14,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:14,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:14,074 INFO L87 Difference]: Start difference. First operand 5167 states and 24529 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:14,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:14,180 INFO L93 Difference]: Finished difference Result 11397 states and 50909 transitions. [2021-06-05 03:42:14,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:14,180 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:14,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:14,207 INFO L225 Difference]: With dead ends: 11397 [2021-06-05 03:42:14,207 INFO L226 Difference]: Without dead ends: 10855 [2021-06-05 03:42:14,207 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 136.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:14,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10855 states. [2021-06-05 03:42:14,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10855 to 5275. [2021-06-05 03:42:14,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5275 states, 5274 states have (on average 4.726772847933257) internal successors, (24929), 5274 states have internal predecessors, (24929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:14,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5275 states to 5275 states and 24929 transitions. [2021-06-05 03:42:14,432 INFO L78 Accepts]: Start accepts. Automaton has 5275 states and 24929 transitions. Word has length 29 [2021-06-05 03:42:14,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:14,432 INFO L482 AbstractCegarLoop]: Abstraction has 5275 states and 24929 transitions. [2021-06-05 03:42:14,432 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:14,432 INFO L276 IsEmpty]: Start isEmpty. Operand 5275 states and 24929 transitions. [2021-06-05 03:42:14,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:14,441 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:14,441 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:14,441 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable399 [2021-06-05 03:42:14,441 INFO L430 AbstractCegarLoop]: === Iteration 401 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:14,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:14,442 INFO L82 PathProgramCache]: Analyzing trace with hash 747008395, now seen corresponding path program 396 times [2021-06-05 03:42:14,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:14,442 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279257238] [2021-06-05 03:42:14,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:14,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:14,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:14,573 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:14,573 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279257238] [2021-06-05 03:42:14,573 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279257238] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:14,573 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:14,573 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:14,573 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304250055] [2021-06-05 03:42:14,573 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:14,573 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:14,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:14,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:14,573 INFO L87 Difference]: Start difference. First operand 5275 states and 24929 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:14,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:14,700 INFO L93 Difference]: Finished difference Result 11326 states and 50526 transitions. [2021-06-05 03:42:14,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:14,700 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:14,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:14,727 INFO L225 Difference]: With dead ends: 11326 [2021-06-05 03:42:14,727 INFO L226 Difference]: Without dead ends: 10707 [2021-06-05 03:42:14,728 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 155.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:14,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10707 states. [2021-06-05 03:42:14,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10707 to 5127. [2021-06-05 03:42:14,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5127 states, 5126 states have (on average 4.7547795552087395) internal successors, (24373), 5126 states have internal predecessors, (24373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:14,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5127 states to 5127 states and 24373 transitions. [2021-06-05 03:42:14,948 INFO L78 Accepts]: Start accepts. Automaton has 5127 states and 24373 transitions. Word has length 29 [2021-06-05 03:42:14,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:14,948 INFO L482 AbstractCegarLoop]: Abstraction has 5127 states and 24373 transitions. [2021-06-05 03:42:14,948 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:14,948 INFO L276 IsEmpty]: Start isEmpty. Operand 5127 states and 24373 transitions. [2021-06-05 03:42:14,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:14,956 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:14,956 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:14,956 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable400 [2021-06-05 03:42:14,956 INFO L430 AbstractCegarLoop]: === Iteration 402 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:14,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:14,957 INFO L82 PathProgramCache]: Analyzing trace with hash 1407092137, now seen corresponding path program 397 times [2021-06-05 03:42:14,957 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:14,957 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050246420] [2021-06-05 03:42:14,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:14,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:15,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:15,067 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:15,067 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050246420] [2021-06-05 03:42:15,067 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050246420] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:15,067 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:15,067 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:15,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40027252] [2021-06-05 03:42:15,067 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:15,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:15,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:15,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:15,067 INFO L87 Difference]: Start difference. First operand 5127 states and 24373 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:15,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:15,184 INFO L93 Difference]: Finished difference Result 10752 states and 48128 transitions. [2021-06-05 03:42:15,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:15,185 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:15,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:15,210 INFO L225 Difference]: With dead ends: 10752 [2021-06-05 03:42:15,210 INFO L226 Difference]: Without dead ends: 10337 [2021-06-05 03:42:15,210 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 133.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:15,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10337 states. [2021-06-05 03:42:15,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10337 to 5175. [2021-06-05 03:42:15,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5175 states, 5174 states have (on average 4.747777348279861) internal successors, (24565), 5174 states have internal predecessors, (24565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:15,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5175 states to 5175 states and 24565 transitions. [2021-06-05 03:42:15,429 INFO L78 Accepts]: Start accepts. Automaton has 5175 states and 24565 transitions. Word has length 29 [2021-06-05 03:42:15,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:15,429 INFO L482 AbstractCegarLoop]: Abstraction has 5175 states and 24565 transitions. [2021-06-05 03:42:15,429 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:15,429 INFO L276 IsEmpty]: Start isEmpty. Operand 5175 states and 24565 transitions. [2021-06-05 03:42:15,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:15,438 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:15,438 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:15,438 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable401 [2021-06-05 03:42:15,438 INFO L430 AbstractCegarLoop]: === Iteration 403 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:15,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:15,439 INFO L82 PathProgramCache]: Analyzing trace with hash -995028857, now seen corresponding path program 398 times [2021-06-05 03:42:15,439 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:15,439 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164736653] [2021-06-05 03:42:15,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:15,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:15,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:15,549 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:15,549 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164736653] [2021-06-05 03:42:15,549 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164736653] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:15,549 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:15,549 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:15,550 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018155473] [2021-06-05 03:42:15,550 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:15,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:15,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:15,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:15,550 INFO L87 Difference]: Start difference. First operand 5175 states and 24565 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:15,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:15,663 INFO L93 Difference]: Finished difference Result 10752 states and 48096 transitions. [2021-06-05 03:42:15,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:15,664 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:15,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:15,689 INFO L225 Difference]: With dead ends: 10752 [2021-06-05 03:42:15,689 INFO L226 Difference]: Without dead ends: 10305 [2021-06-05 03:42:15,689 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 117.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:15,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10305 states. [2021-06-05 03:42:15,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10305 to 5143. [2021-06-05 03:42:15,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.7524309607156745) internal successors, (24437), 5142 states have internal predecessors, (24437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:15,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24437 transitions. [2021-06-05 03:42:15,908 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24437 transitions. Word has length 29 [2021-06-05 03:42:15,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:15,908 INFO L482 AbstractCegarLoop]: Abstraction has 5143 states and 24437 transitions. [2021-06-05 03:42:15,908 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:15,908 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24437 transitions. [2021-06-05 03:42:15,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:15,917 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:15,917 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:15,917 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable402 [2021-06-05 03:42:15,917 INFO L430 AbstractCegarLoop]: === Iteration 404 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:15,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:15,918 INFO L82 PathProgramCache]: Analyzing trace with hash 233132427, now seen corresponding path program 399 times [2021-06-05 03:42:15,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:15,918 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788636769] [2021-06-05 03:42:15,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:15,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:16,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:16,026 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:16,026 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788636769] [2021-06-05 03:42:16,026 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788636769] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:16,026 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:16,026 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:16,026 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554078093] [2021-06-05 03:42:16,027 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:16,027 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:16,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:16,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:16,027 INFO L87 Difference]: Start difference. First operand 5143 states and 24437 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:16,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:16,156 INFO L93 Difference]: Finished difference Result 10824 states and 48444 transitions. [2021-06-05 03:42:16,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:16,156 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:16,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:16,182 INFO L225 Difference]: With dead ends: 10824 [2021-06-05 03:42:16,182 INFO L226 Difference]: Without dead ends: 10409 [2021-06-05 03:42:16,182 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 132.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:16,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10409 states. [2021-06-05 03:42:16,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10409 to 5191. [2021-06-05 03:42:16,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.742389210019268) internal successors, (24613), 5190 states have internal predecessors, (24613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:16,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24613 transitions. [2021-06-05 03:42:16,404 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24613 transitions. Word has length 29 [2021-06-05 03:42:16,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:16,404 INFO L482 AbstractCegarLoop]: Abstraction has 5191 states and 24613 transitions. [2021-06-05 03:42:16,404 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:16,404 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24613 transitions. [2021-06-05 03:42:16,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:16,412 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:16,412 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:16,412 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable403 [2021-06-05 03:42:16,412 INFO L430 AbstractCegarLoop]: === Iteration 405 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:16,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:16,413 INFO L82 PathProgramCache]: Analyzing trace with hash 647025867, now seen corresponding path program 400 times [2021-06-05 03:42:16,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:16,413 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307088077] [2021-06-05 03:42:16,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:16,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:16,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:16,525 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:16,525 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307088077] [2021-06-05 03:42:16,525 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307088077] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:16,525 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:16,525 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:16,525 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508607281] [2021-06-05 03:42:16,525 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:16,526 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:16,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:16,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:16,526 INFO L87 Difference]: Start difference. First operand 5191 states and 24613 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:16,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:16,637 INFO L93 Difference]: Finished difference Result 10880 states and 48648 transitions. [2021-06-05 03:42:16,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:16,637 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:16,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:16,664 INFO L225 Difference]: With dead ends: 10880 [2021-06-05 03:42:16,664 INFO L226 Difference]: Without dead ends: 10361 [2021-06-05 03:42:16,664 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 137.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:16,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10361 states. [2021-06-05 03:42:16,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10361 to 5143. [2021-06-05 03:42:16,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.749319330999611) internal successors, (24421), 5142 states have internal predecessors, (24421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:16,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24421 transitions. [2021-06-05 03:42:16,886 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24421 transitions. Word has length 29 [2021-06-05 03:42:16,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:16,886 INFO L482 AbstractCegarLoop]: Abstraction has 5143 states and 24421 transitions. [2021-06-05 03:42:16,886 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:16,886 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24421 transitions. [2021-06-05 03:42:16,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:16,895 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:16,895 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:16,895 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable404 [2021-06-05 03:42:16,895 INFO L430 AbstractCegarLoop]: === Iteration 406 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:16,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:16,895 INFO L82 PathProgramCache]: Analyzing trace with hash 1206902023, now seen corresponding path program 401 times [2021-06-05 03:42:16,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:16,895 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103381554] [2021-06-05 03:42:16,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:16,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:17,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:17,017 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:17,017 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103381554] [2021-06-05 03:42:17,017 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103381554] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:17,017 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:17,017 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:17,017 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717880054] [2021-06-05 03:42:17,017 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:17,017 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:17,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:17,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:17,017 INFO L87 Difference]: Start difference. First operand 5143 states and 24421 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:17,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:17,110 INFO L93 Difference]: Finished difference Result 10824 states and 48428 transitions. [2021-06-05 03:42:17,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:17,110 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:17,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:17,136 INFO L225 Difference]: With dead ends: 10824 [2021-06-05 03:42:17,136 INFO L226 Difference]: Without dead ends: 10409 [2021-06-05 03:42:17,137 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 129.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:17,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10409 states. [2021-06-05 03:42:17,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10409 to 5191. [2021-06-05 03:42:17,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.739306358381503) internal successors, (24597), 5190 states have internal predecessors, (24597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:17,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24597 transitions. [2021-06-05 03:42:17,361 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24597 transitions. Word has length 29 [2021-06-05 03:42:17,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:17,362 INFO L482 AbstractCegarLoop]: Abstraction has 5191 states and 24597 transitions. [2021-06-05 03:42:17,362 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:17,362 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24597 transitions. [2021-06-05 03:42:17,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:17,370 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:17,370 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:17,370 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable405 [2021-06-05 03:42:17,371 INFO L430 AbstractCegarLoop]: === Iteration 407 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:17,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:17,371 INFO L82 PathProgramCache]: Analyzing trace with hash 1000094057, now seen corresponding path program 402 times [2021-06-05 03:42:17,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:17,371 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633985486] [2021-06-05 03:42:17,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:17,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:17,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:17,497 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:17,497 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633985486] [2021-06-05 03:42:17,497 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633985486] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:17,497 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:17,497 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:17,497 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332104388] [2021-06-05 03:42:17,497 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:17,497 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:17,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:17,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:17,497 INFO L87 Difference]: Start difference. First operand 5191 states and 24597 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:17,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:17,619 INFO L93 Difference]: Finished difference Result 10880 states and 48632 transitions. [2021-06-05 03:42:17,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:17,619 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:17,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:17,645 INFO L225 Difference]: With dead ends: 10880 [2021-06-05 03:42:17,645 INFO L226 Difference]: Without dead ends: 10345 [2021-06-05 03:42:17,645 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 146.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:17,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10345 states. [2021-06-05 03:42:17,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10345 to 5127. [2021-06-05 03:42:17,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5127 states, 5126 states have (on average 4.753218884120171) internal successors, (24365), 5126 states have internal predecessors, (24365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:17,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5127 states to 5127 states and 24365 transitions. [2021-06-05 03:42:17,864 INFO L78 Accepts]: Start accepts. Automaton has 5127 states and 24365 transitions. Word has length 29 [2021-06-05 03:42:17,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:17,864 INFO L482 AbstractCegarLoop]: Abstraction has 5127 states and 24365 transitions. [2021-06-05 03:42:17,864 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:17,864 INFO L276 IsEmpty]: Start isEmpty. Operand 5127 states and 24365 transitions. [2021-06-05 03:42:17,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:17,873 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:17,873 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:17,873 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable406 [2021-06-05 03:42:17,873 INFO L430 AbstractCegarLoop]: === Iteration 408 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:17,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:17,873 INFO L82 PathProgramCache]: Analyzing trace with hash -213718683, now seen corresponding path program 403 times [2021-06-05 03:42:17,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:17,874 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808634237] [2021-06-05 03:42:17,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:17,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:18,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:18,000 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:18,000 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808634237] [2021-06-05 03:42:18,001 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808634237] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:18,001 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:18,001 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:18,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400086013] [2021-06-05 03:42:18,001 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:18,001 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:18,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:18,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:18,001 INFO L87 Difference]: Start difference. First operand 5127 states and 24365 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:18,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:18,096 INFO L93 Difference]: Finished difference Result 11313 states and 50557 transitions. [2021-06-05 03:42:18,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:18,096 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:18,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:18,122 INFO L225 Difference]: With dead ends: 11313 [2021-06-05 03:42:18,123 INFO L226 Difference]: Without dead ends: 10771 [2021-06-05 03:42:18,123 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 134.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:18,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10771 states. [2021-06-05 03:42:18,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10771 to 5247. [2021-06-05 03:42:18,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5247 states, 5246 states have (on average 4.738276782310332) internal successors, (24857), 5246 states have internal predecessors, (24857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:18,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5247 states to 5247 states and 24857 transitions. [2021-06-05 03:42:18,348 INFO L78 Accepts]: Start accepts. Automaton has 5247 states and 24857 transitions. Word has length 29 [2021-06-05 03:42:18,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:18,348 INFO L482 AbstractCegarLoop]: Abstraction has 5247 states and 24857 transitions. [2021-06-05 03:42:18,348 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:18,348 INFO L276 IsEmpty]: Start isEmpty. Operand 5247 states and 24857 transitions. [2021-06-05 03:42:18,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:18,357 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:18,357 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:18,357 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable407 [2021-06-05 03:42:18,357 INFO L430 AbstractCegarLoop]: === Iteration 409 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:18,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:18,357 INFO L82 PathProgramCache]: Analyzing trace with hash -420526649, now seen corresponding path program 404 times [2021-06-05 03:42:18,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:18,358 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001827821] [2021-06-05 03:42:18,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:18,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:18,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:18,495 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:18,495 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001827821] [2021-06-05 03:42:18,495 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001827821] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:18,495 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:18,496 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:18,496 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561662551] [2021-06-05 03:42:18,496 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:18,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:18,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:18,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:18,496 INFO L87 Difference]: Start difference. First operand 5247 states and 24857 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:18,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:18,596 INFO L93 Difference]: Finished difference Result 11186 states and 49950 transitions. [2021-06-05 03:42:18,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:18,596 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:18,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:18,623 INFO L225 Difference]: With dead ends: 11186 [2021-06-05 03:42:18,623 INFO L226 Difference]: Without dead ends: 10691 [2021-06-05 03:42:18,623 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 145.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:18,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10691 states. [2021-06-05 03:42:18,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10691 to 5167. [2021-06-05 03:42:18,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5167 states, 5166 states have (on average 4.748161053039102) internal successors, (24529), 5166 states have internal predecessors, (24529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:18,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 24529 transitions. [2021-06-05 03:42:18,844 INFO L78 Accepts]: Start accepts. Automaton has 5167 states and 24529 transitions. Word has length 29 [2021-06-05 03:42:18,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:18,844 INFO L482 AbstractCegarLoop]: Abstraction has 5167 states and 24529 transitions. [2021-06-05 03:42:18,845 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:18,845 INFO L276 IsEmpty]: Start isEmpty. Operand 5167 states and 24529 transitions. [2021-06-05 03:42:18,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:18,853 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:18,853 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:18,853 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable408 [2021-06-05 03:42:18,853 INFO L430 AbstractCegarLoop]: === Iteration 410 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:18,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:18,853 INFO L82 PathProgramCache]: Analyzing trace with hash -1387678393, now seen corresponding path program 405 times [2021-06-05 03:42:18,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:18,854 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763860977] [2021-06-05 03:42:18,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:18,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:18,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:18,986 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:18,986 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763860977] [2021-06-05 03:42:18,986 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763860977] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:18,986 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:18,986 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:18,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685835950] [2021-06-05 03:42:18,986 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:18,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:18,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:18,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:18,986 INFO L87 Difference]: Start difference. First operand 5167 states and 24529 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:19,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:19,083 INFO L93 Difference]: Finished difference Result 11397 states and 50909 transitions. [2021-06-05 03:42:19,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:19,083 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:19,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:19,110 INFO L225 Difference]: With dead ends: 11397 [2021-06-05 03:42:19,110 INFO L226 Difference]: Without dead ends: 10855 [2021-06-05 03:42:19,110 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 139.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:19,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10855 states. [2021-06-05 03:42:19,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10855 to 5275. [2021-06-05 03:42:19,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5275 states, 5274 states have (on average 4.726772847933257) internal successors, (24929), 5274 states have internal predecessors, (24929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:19,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5275 states to 5275 states and 24929 transitions. [2021-06-05 03:42:19,336 INFO L78 Accepts]: Start accepts. Automaton has 5275 states and 24929 transitions. Word has length 29 [2021-06-05 03:42:19,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:19,336 INFO L482 AbstractCegarLoop]: Abstraction has 5275 states and 24929 transitions. [2021-06-05 03:42:19,336 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:19,336 INFO L276 IsEmpty]: Start isEmpty. Operand 5275 states and 24929 transitions. [2021-06-05 03:42:19,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:19,345 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:19,345 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:19,345 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable409 [2021-06-05 03:42:19,345 INFO L430 AbstractCegarLoop]: === Iteration 411 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:19,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:19,345 INFO L82 PathProgramCache]: Analyzing trace with hash 1668986055, now seen corresponding path program 406 times [2021-06-05 03:42:19,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:19,345 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171928434] [2021-06-05 03:42:19,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:19,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:19,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:19,477 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:19,477 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171928434] [2021-06-05 03:42:19,477 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171928434] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:19,477 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:19,477 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:19,477 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018310546] [2021-06-05 03:42:19,477 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:19,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:19,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:19,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:19,477 INFO L87 Difference]: Start difference. First operand 5275 states and 24929 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:19,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:19,593 INFO L93 Difference]: Finished difference Result 11326 states and 50526 transitions. [2021-06-05 03:42:19,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:19,594 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:19,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:19,620 INFO L225 Difference]: With dead ends: 11326 [2021-06-05 03:42:19,620 INFO L226 Difference]: Without dead ends: 10747 [2021-06-05 03:42:19,620 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 156.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:19,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10747 states. [2021-06-05 03:42:19,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10747 to 5167. [2021-06-05 03:42:19,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5167 states, 5166 states have (on average 4.7404181184668985) internal successors, (24489), 5166 states have internal predecessors, (24489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:19,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 24489 transitions. [2021-06-05 03:42:19,842 INFO L78 Accepts]: Start accepts. Automaton has 5167 states and 24489 transitions. Word has length 29 [2021-06-05 03:42:19,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:19,842 INFO L482 AbstractCegarLoop]: Abstraction has 5167 states and 24489 transitions. [2021-06-05 03:42:19,842 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:19,842 INFO L276 IsEmpty]: Start isEmpty. Operand 5167 states and 24489 transitions. [2021-06-05 03:42:19,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:19,851 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:19,851 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:19,851 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable410 [2021-06-05 03:42:19,851 INFO L430 AbstractCegarLoop]: === Iteration 412 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:19,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:19,851 INFO L82 PathProgramCache]: Analyzing trace with hash 1314365609, now seen corresponding path program 407 times [2021-06-05 03:42:19,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:19,851 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851514822] [2021-06-05 03:42:19,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:19,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:19,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:19,985 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:19,985 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851514822] [2021-06-05 03:42:19,985 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851514822] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:19,985 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:19,985 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:19,985 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106773710] [2021-06-05 03:42:19,985 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:19,985 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:19,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:19,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:19,985 INFO L87 Difference]: Start difference. First operand 5167 states and 24489 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:20,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:20,082 INFO L93 Difference]: Finished difference Result 11083 states and 49531 transitions. [2021-06-05 03:42:20,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:20,082 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:20,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:20,108 INFO L225 Difference]: With dead ends: 11083 [2021-06-05 03:42:20,108 INFO L226 Difference]: Without dead ends: 10668 [2021-06-05 03:42:20,108 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 140.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:20,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10668 states. [2021-06-05 03:42:20,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10668 to 5215. [2021-06-05 03:42:20,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5215 states, 5214 states have (on average 4.730533179900268) internal successors, (24665), 5214 states have internal predecessors, (24665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:20,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5215 states to 5215 states and 24665 transitions. [2021-06-05 03:42:20,328 INFO L78 Accepts]: Start accepts. Automaton has 5215 states and 24665 transitions. Word has length 29 [2021-06-05 03:42:20,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:20,328 INFO L482 AbstractCegarLoop]: Abstraction has 5215 states and 24665 transitions. [2021-06-05 03:42:20,328 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:20,328 INFO L276 IsEmpty]: Start isEmpty. Operand 5215 states and 24665 transitions. [2021-06-05 03:42:20,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:20,336 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:20,337 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:20,337 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable411 [2021-06-05 03:42:20,337 INFO L430 AbstractCegarLoop]: === Iteration 413 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:20,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:20,337 INFO L82 PathProgramCache]: Analyzing trace with hash -801714041, now seen corresponding path program 408 times [2021-06-05 03:42:20,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:20,337 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256138046] [2021-06-05 03:42:20,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:20,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:20,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:20,472 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:20,472 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256138046] [2021-06-05 03:42:20,472 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256138046] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:20,472 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:20,472 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:20,472 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140494976] [2021-06-05 03:42:20,472 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:20,472 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:20,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:20,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:20,473 INFO L87 Difference]: Start difference. First operand 5215 states and 24665 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:20,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:20,591 INFO L93 Difference]: Finished difference Result 11139 states and 49735 transitions. [2021-06-05 03:42:20,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:20,591 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:20,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:20,616 INFO L225 Difference]: With dead ends: 11139 [2021-06-05 03:42:20,617 INFO L226 Difference]: Without dead ends: 10564 [2021-06-05 03:42:20,617 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 160.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:20,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10564 states. [2021-06-05 03:42:20,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10564 to 5111. [2021-06-05 03:42:20,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5111 states, 5110 states have (on average 4.757142857142857) internal successors, (24309), 5110 states have internal predecessors, (24309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:20,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5111 states to 5111 states and 24309 transitions. [2021-06-05 03:42:20,836 INFO L78 Accepts]: Start accepts. Automaton has 5111 states and 24309 transitions. Word has length 29 [2021-06-05 03:42:20,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:20,836 INFO L482 AbstractCegarLoop]: Abstraction has 5111 states and 24309 transitions. [2021-06-05 03:42:20,836 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:20,836 INFO L276 IsEmpty]: Start isEmpty. Operand 5111 states and 24309 transitions. [2021-06-05 03:42:20,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:20,845 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:20,845 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:20,845 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable412 [2021-06-05 03:42:20,845 INFO L430 AbstractCegarLoop]: === Iteration 414 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:20,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:20,845 INFO L82 PathProgramCache]: Analyzing trace with hash -1978955863, now seen corresponding path program 409 times [2021-06-05 03:42:20,845 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:20,845 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913808097] [2021-06-05 03:42:20,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:20,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:20,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:20,966 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:20,967 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913808097] [2021-06-05 03:42:20,967 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913808097] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:20,967 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:20,967 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:20,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137312294] [2021-06-05 03:42:20,967 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:20,967 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:20,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:20,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:20,967 INFO L87 Difference]: Start difference. First operand 5111 states and 24309 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:21,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:21,079 INFO L93 Difference]: Finished difference Result 11360 states and 50901 transitions. [2021-06-05 03:42:21,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:21,079 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:21,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:21,105 INFO L225 Difference]: With dead ends: 11360 [2021-06-05 03:42:21,106 INFO L226 Difference]: Without dead ends: 10945 [2021-06-05 03:42:21,106 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 145.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:21,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10945 states. [2021-06-05 03:42:21,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10945 to 5251. [2021-06-05 03:42:21,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5251 states, 5250 states have (on average 4.751428571428572) internal successors, (24945), 5250 states have internal predecessors, (24945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:21,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5251 states to 5251 states and 24945 transitions. [2021-06-05 03:42:21,380 INFO L78 Accepts]: Start accepts. Automaton has 5251 states and 24945 transitions. Word has length 29 [2021-06-05 03:42:21,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:21,380 INFO L482 AbstractCegarLoop]: Abstraction has 5251 states and 24945 transitions. [2021-06-05 03:42:21,380 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:21,380 INFO L276 IsEmpty]: Start isEmpty. Operand 5251 states and 24945 transitions. [2021-06-05 03:42:21,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:21,389 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:21,389 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:21,389 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable413 [2021-06-05 03:42:21,389 INFO L430 AbstractCegarLoop]: === Iteration 415 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:21,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:21,390 INFO L82 PathProgramCache]: Analyzing trace with hash -224135255, now seen corresponding path program 410 times [2021-06-05 03:42:21,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:21,390 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328547165] [2021-06-05 03:42:21,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:21,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:21,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:21,510 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:21,510 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328547165] [2021-06-05 03:42:21,510 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328547165] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:21,510 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:21,510 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:21,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335014593] [2021-06-05 03:42:21,510 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:21,510 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:21,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:21,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:21,511 INFO L87 Difference]: Start difference. First operand 5251 states and 24945 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:21,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:21,610 INFO L93 Difference]: Finished difference Result 11487 states and 51380 transitions. [2021-06-05 03:42:21,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:21,611 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:21,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:21,637 INFO L225 Difference]: With dead ends: 11487 [2021-06-05 03:42:21,637 INFO L226 Difference]: Without dead ends: 10865 [2021-06-05 03:42:21,638 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 127.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:21,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10865 states. [2021-06-05 03:42:21,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10865 to 5171. [2021-06-05 03:42:21,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5171 states, 5170 states have (on average 4.75531914893617) internal successors, (24585), 5170 states have internal predecessors, (24585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:21,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5171 states to 5171 states and 24585 transitions. [2021-06-05 03:42:21,864 INFO L78 Accepts]: Start accepts. Automaton has 5171 states and 24585 transitions. Word has length 29 [2021-06-05 03:42:21,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:21,864 INFO L482 AbstractCegarLoop]: Abstraction has 5171 states and 24585 transitions. [2021-06-05 03:42:21,865 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:21,865 INFO L276 IsEmpty]: Start isEmpty. Operand 5171 states and 24585 transitions. [2021-06-05 03:42:21,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:21,873 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:21,873 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:21,873 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable414 [2021-06-05 03:42:21,874 INFO L430 AbstractCegarLoop]: === Iteration 416 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:21,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:21,874 INFO L82 PathProgramCache]: Analyzing trace with hash 1983867625, now seen corresponding path program 411 times [2021-06-05 03:42:21,874 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:21,874 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313932545] [2021-06-05 03:42:21,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:21,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:21,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:21,998 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:21,998 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313932545] [2021-06-05 03:42:21,998 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313932545] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:21,998 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:21,998 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:21,998 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280086620] [2021-06-05 03:42:21,998 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:21,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:21,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:21,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:21,999 INFO L87 Difference]: Start difference. First operand 5171 states and 24585 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:22,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:22,114 INFO L93 Difference]: Finished difference Result 11261 states and 50454 transitions. [2021-06-05 03:42:22,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:22,114 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:22,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:22,140 INFO L225 Difference]: With dead ends: 11261 [2021-06-05 03:42:22,141 INFO L226 Difference]: Without dead ends: 10846 [2021-06-05 03:42:22,141 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 147.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:22,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10846 states. [2021-06-05 03:42:22,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10846 to 5219. [2021-06-05 03:42:22,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5219 states, 5218 states have (on average 4.745304714449981) internal successors, (24761), 5218 states have internal predecessors, (24761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:22,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5219 states to 5219 states and 24761 transitions. [2021-06-05 03:42:22,365 INFO L78 Accepts]: Start accepts. Automaton has 5219 states and 24761 transitions. Word has length 29 [2021-06-05 03:42:22,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:22,365 INFO L482 AbstractCegarLoop]: Abstraction has 5219 states and 24761 transitions. [2021-06-05 03:42:22,365 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:22,365 INFO L276 IsEmpty]: Start isEmpty. Operand 5219 states and 24761 transitions. [2021-06-05 03:42:22,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:22,374 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:22,374 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:22,374 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable415 [2021-06-05 03:42:22,374 INFO L430 AbstractCegarLoop]: === Iteration 417 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:22,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:22,374 INFO L82 PathProgramCache]: Analyzing trace with hash 1469186699, now seen corresponding path program 412 times [2021-06-05 03:42:22,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:22,374 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689349613] [2021-06-05 03:42:22,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:22,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:22,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:22,501 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:22,501 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689349613] [2021-06-05 03:42:22,501 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689349613] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:22,501 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:22,501 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:22,501 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708447159] [2021-06-05 03:42:22,501 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:22,501 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:22,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:22,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:22,502 INFO L87 Difference]: Start difference. First operand 5219 states and 24761 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:22,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:22,618 INFO L93 Difference]: Finished difference Result 11321 states and 50670 transitions. [2021-06-05 03:42:22,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:22,619 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:22,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:22,645 INFO L225 Difference]: With dead ends: 11321 [2021-06-05 03:42:22,645 INFO L226 Difference]: Without dead ends: 10798 [2021-06-05 03:42:22,645 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 151.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:22,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10798 states. [2021-06-05 03:42:22,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10798 to 5171. [2021-06-05 03:42:22,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5171 states, 5170 states have (on average 4.750676982591877) internal successors, (24561), 5170 states have internal predecessors, (24561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:22,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5171 states to 5171 states and 24561 transitions. [2021-06-05 03:42:22,868 INFO L78 Accepts]: Start accepts. Automaton has 5171 states and 24561 transitions. Word has length 29 [2021-06-05 03:42:22,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:22,868 INFO L482 AbstractCegarLoop]: Abstraction has 5171 states and 24561 transitions. [2021-06-05 03:42:22,868 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:22,868 INFO L276 IsEmpty]: Start isEmpty. Operand 5171 states and 24561 transitions. [2021-06-05 03:42:22,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:22,877 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:22,877 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:22,877 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable416 [2021-06-05 03:42:22,877 INFO L430 AbstractCegarLoop]: === Iteration 418 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:22,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:22,877 INFO L82 PathProgramCache]: Analyzing trace with hash -2086952309, now seen corresponding path program 413 times [2021-06-05 03:42:22,877 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:22,877 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817415113] [2021-06-05 03:42:22,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:22,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:22,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:22,990 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:22,990 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817415113] [2021-06-05 03:42:22,990 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817415113] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:22,990 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:22,990 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:22,990 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162200114] [2021-06-05 03:42:22,990 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:22,990 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:22,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:22,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:22,990 INFO L87 Difference]: Start difference. First operand 5171 states and 24561 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:23,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:23,092 INFO L93 Difference]: Finished difference Result 11577 states and 51775 transitions. [2021-06-05 03:42:23,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:23,092 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:23,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:23,119 INFO L225 Difference]: With dead ends: 11577 [2021-06-05 03:42:23,119 INFO L226 Difference]: Without dead ends: 11035 [2021-06-05 03:42:23,119 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 120.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:23,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11035 states. [2021-06-05 03:42:23,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11035 to 5281. [2021-06-05 03:42:23,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5281 states, 5280 states have (on average 4.728409090909091) internal successors, (24966), 5280 states have internal predecessors, (24966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:23,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5281 states to 5281 states and 24966 transitions. [2021-06-05 03:42:23,346 INFO L78 Accepts]: Start accepts. Automaton has 5281 states and 24966 transitions. Word has length 29 [2021-06-05 03:42:23,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:23,346 INFO L482 AbstractCegarLoop]: Abstraction has 5281 states and 24966 transitions. [2021-06-05 03:42:23,346 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:23,346 INFO L276 IsEmpty]: Start isEmpty. Operand 5281 states and 24966 transitions. [2021-06-05 03:42:23,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:23,354 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:23,354 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:23,355 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable417 [2021-06-05 03:42:23,355 INFO L430 AbstractCegarLoop]: === Iteration 419 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:23,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:23,355 INFO L82 PathProgramCache]: Analyzing trace with hash 1467062889, now seen corresponding path program 414 times [2021-06-05 03:42:23,355 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:23,355 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395909207] [2021-06-05 03:42:23,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:23,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:23,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:23,467 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:23,467 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395909207] [2021-06-05 03:42:23,467 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395909207] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:23,467 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:23,467 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:23,467 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311374183] [2021-06-05 03:42:23,468 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:23,468 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:23,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:23,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:23,468 INFO L87 Difference]: Start difference. First operand 5281 states and 24966 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:23,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:23,578 INFO L93 Difference]: Finished difference Result 11510 states and 51402 transitions. [2021-06-05 03:42:23,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:23,578 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:23,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:23,605 INFO L225 Difference]: With dead ends: 11510 [2021-06-05 03:42:23,605 INFO L226 Difference]: Without dead ends: 10885 [2021-06-05 03:42:23,605 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 136.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:23,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10885 states. [2021-06-05 03:42:23,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10885 to 5131. [2021-06-05 03:42:23,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.756530214424951) internal successors, (24401), 5130 states have internal predecessors, (24401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:23,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24401 transitions. [2021-06-05 03:42:23,829 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24401 transitions. Word has length 29 [2021-06-05 03:42:23,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:23,829 INFO L482 AbstractCegarLoop]: Abstraction has 5131 states and 24401 transitions. [2021-06-05 03:42:23,829 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:23,829 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24401 transitions. [2021-06-05 03:42:23,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:23,838 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:23,838 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:23,838 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable418 [2021-06-05 03:42:23,838 INFO L430 AbstractCegarLoop]: === Iteration 420 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:23,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:23,838 INFO L82 PathProgramCache]: Analyzing trace with hash 270830347, now seen corresponding path program 415 times [2021-06-05 03:42:23,838 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:23,838 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431853488] [2021-06-05 03:42:23,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:23,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:23,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:23,962 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:23,962 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431853488] [2021-06-05 03:42:23,962 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431853488] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:23,962 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:23,962 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:23,962 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893357626] [2021-06-05 03:42:23,963 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:23,963 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:23,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:23,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:23,963 INFO L87 Difference]: Start difference. First operand 5131 states and 24401 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:24,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:24,081 INFO L93 Difference]: Finished difference Result 11354 states and 50862 transitions. [2021-06-05 03:42:24,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:24,081 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:24,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:24,108 INFO L225 Difference]: With dead ends: 11354 [2021-06-05 03:42:24,109 INFO L226 Difference]: Without dead ends: 10939 [2021-06-05 03:42:24,109 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 148.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:24,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10939 states. [2021-06-05 03:42:24,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10939 to 5251. [2021-06-05 03:42:24,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5251 states, 5250 states have (on average 4.747619047619048) internal successors, (24925), 5250 states have internal predecessors, (24925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:24,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5251 states to 5251 states and 24925 transitions. [2021-06-05 03:42:24,340 INFO L78 Accepts]: Start accepts. Automaton has 5251 states and 24925 transitions. Word has length 29 [2021-06-05 03:42:24,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:24,340 INFO L482 AbstractCegarLoop]: Abstraction has 5251 states and 24925 transitions. [2021-06-05 03:42:24,341 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:24,341 INFO L276 IsEmpty]: Start isEmpty. Operand 5251 states and 24925 transitions. [2021-06-05 03:42:24,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:24,349 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:24,349 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:24,350 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable419 [2021-06-05 03:42:24,350 INFO L430 AbstractCegarLoop]: === Iteration 421 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:24,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:24,350 INFO L82 PathProgramCache]: Analyzing trace with hash 2025650955, now seen corresponding path program 416 times [2021-06-05 03:42:24,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:24,350 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345088896] [2021-06-05 03:42:24,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:24,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:24,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:24,477 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:24,477 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345088896] [2021-06-05 03:42:24,477 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345088896] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:24,477 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:24,477 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:24,477 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275896627] [2021-06-05 03:42:24,477 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:24,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:24,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:24,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:24,478 INFO L87 Difference]: Start difference. First operand 5251 states and 24925 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:24,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:24,603 INFO L93 Difference]: Finished difference Result 11481 states and 51341 transitions. [2021-06-05 03:42:24,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:24,604 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:24,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:24,631 INFO L225 Difference]: With dead ends: 11481 [2021-06-05 03:42:24,631 INFO L226 Difference]: Without dead ends: 10859 [2021-06-05 03:42:24,631 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 135.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:24,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10859 states. [2021-06-05 03:42:24,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10859 to 5171. [2021-06-05 03:42:24,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5171 states, 5170 states have (on average 4.751450676982592) internal successors, (24565), 5170 states have internal predecessors, (24565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:24,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5171 states to 5171 states and 24565 transitions. [2021-06-05 03:42:24,859 INFO L78 Accepts]: Start accepts. Automaton has 5171 states and 24565 transitions. Word has length 29 [2021-06-05 03:42:24,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:24,859 INFO L482 AbstractCegarLoop]: Abstraction has 5171 states and 24565 transitions. [2021-06-05 03:42:24,859 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:24,859 INFO L276 IsEmpty]: Start isEmpty. Operand 5171 states and 24565 transitions. [2021-06-05 03:42:24,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:24,868 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:24,868 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:24,868 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable420 [2021-06-05 03:42:24,868 INFO L430 AbstractCegarLoop]: === Iteration 422 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:24,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:24,869 INFO L82 PathProgramCache]: Analyzing trace with hash -1370580247, now seen corresponding path program 417 times [2021-06-05 03:42:24,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:24,869 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307202866] [2021-06-05 03:42:24,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:24,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:24,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:24,979 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:24,979 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307202866] [2021-06-05 03:42:24,979 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307202866] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:24,979 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:24,979 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:24,979 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235989371] [2021-06-05 03:42:24,979 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:24,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:24,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:24,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:24,979 INFO L87 Difference]: Start difference. First operand 5171 states and 24565 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:25,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:25,101 INFO L93 Difference]: Finished difference Result 11251 states and 50403 transitions. [2021-06-05 03:42:25,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:25,101 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:25,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:25,129 INFO L225 Difference]: With dead ends: 11251 [2021-06-05 03:42:25,129 INFO L226 Difference]: Without dead ends: 10836 [2021-06-05 03:42:25,129 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 134.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:25,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10836 states. [2021-06-05 03:42:25,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10836 to 5219. [2021-06-05 03:42:25,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5219 states, 5218 states have (on average 4.741471828286699) internal successors, (24741), 5218 states have internal predecessors, (24741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:25,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5219 states to 5219 states and 24741 transitions. [2021-06-05 03:42:25,363 INFO L78 Accepts]: Start accepts. Automaton has 5219 states and 24741 transitions. Word has length 29 [2021-06-05 03:42:25,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:25,363 INFO L482 AbstractCegarLoop]: Abstraction has 5219 states and 24741 transitions. [2021-06-05 03:42:25,363 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:25,363 INFO L276 IsEmpty]: Start isEmpty. Operand 5219 states and 24741 transitions. [2021-06-05 03:42:25,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:25,372 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:25,372 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:25,372 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable421 [2021-06-05 03:42:25,372 INFO L430 AbstractCegarLoop]: === Iteration 423 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:25,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:25,372 INFO L82 PathProgramCache]: Analyzing trace with hash 1794034187, now seen corresponding path program 418 times [2021-06-05 03:42:25,372 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:25,372 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086772725] [2021-06-05 03:42:25,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:25,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:25,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:25,483 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:25,483 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086772725] [2021-06-05 03:42:25,483 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086772725] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:25,483 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:25,483 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:25,484 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57215143] [2021-06-05 03:42:25,484 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:25,484 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:25,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:25,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:25,484 INFO L87 Difference]: Start difference. First operand 5219 states and 24741 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:25,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:25,599 INFO L93 Difference]: Finished difference Result 11307 states and 50607 transitions. [2021-06-05 03:42:25,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:25,599 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:25,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:25,626 INFO L225 Difference]: With dead ends: 11307 [2021-06-05 03:42:25,626 INFO L226 Difference]: Without dead ends: 10788 [2021-06-05 03:42:25,626 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 135.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:25,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10788 states. [2021-06-05 03:42:25,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10788 to 5171. [2021-06-05 03:42:25,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5171 states, 5170 states have (on average 4.746808510638298) internal successors, (24541), 5170 states have internal predecessors, (24541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:25,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5171 states to 5171 states and 24541 transitions. [2021-06-05 03:42:25,854 INFO L78 Accepts]: Start accepts. Automaton has 5171 states and 24541 transitions. Word has length 29 [2021-06-05 03:42:25,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:25,854 INFO L482 AbstractCegarLoop]: Abstraction has 5171 states and 24541 transitions. [2021-06-05 03:42:25,854 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:25,854 INFO L276 IsEmpty]: Start isEmpty. Operand 5171 states and 24541 transitions. [2021-06-05 03:42:25,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:25,863 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:25,863 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:25,863 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable422 [2021-06-05 03:42:25,863 INFO L430 AbstractCegarLoop]: === Iteration 424 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:25,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:25,863 INFO L82 PathProgramCache]: Analyzing trace with hash 1860663819, now seen corresponding path program 419 times [2021-06-05 03:42:25,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:25,863 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397138934] [2021-06-05 03:42:25,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:25,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:25,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:25,988 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:25,988 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397138934] [2021-06-05 03:42:25,988 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397138934] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:25,988 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:25,988 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:25,988 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303080299] [2021-06-05 03:42:25,988 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:25,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:25,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:25,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:25,989 INFO L87 Difference]: Start difference. First operand 5171 states and 24541 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:26,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:26,096 INFO L93 Difference]: Finished difference Result 11565 states and 51717 transitions. [2021-06-05 03:42:26,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:26,097 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:26,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:26,124 INFO L225 Difference]: With dead ends: 11565 [2021-06-05 03:42:26,125 INFO L226 Difference]: Without dead ends: 11023 [2021-06-05 03:42:26,125 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 132.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:26,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11023 states. [2021-06-05 03:42:26,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11023 to 5279. [2021-06-05 03:42:26,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5279 states, 5278 states have (on average 4.725464190981432) internal successors, (24941), 5278 states have internal predecessors, (24941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:26,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5279 states to 5279 states and 24941 transitions. [2021-06-05 03:42:26,357 INFO L78 Accepts]: Start accepts. Automaton has 5279 states and 24941 transitions. Word has length 29 [2021-06-05 03:42:26,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:26,357 INFO L482 AbstractCegarLoop]: Abstraction has 5279 states and 24941 transitions. [2021-06-05 03:42:26,357 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:26,357 INFO L276 IsEmpty]: Start isEmpty. Operand 5279 states and 24941 transitions. [2021-06-05 03:42:26,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:26,366 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:26,366 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:26,366 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable423 [2021-06-05 03:42:26,366 INFO L430 AbstractCegarLoop]: === Iteration 425 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:26,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:26,366 INFO L82 PathProgramCache]: Analyzing trace with hash 1770904169, now seen corresponding path program 420 times [2021-06-05 03:42:26,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:26,366 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653856921] [2021-06-05 03:42:26,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:26,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:26,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:26,491 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:26,491 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653856921] [2021-06-05 03:42:26,492 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653856921] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:26,492 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:26,492 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:26,492 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777155908] [2021-06-05 03:42:26,492 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:26,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:26,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:26,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:26,492 INFO L87 Difference]: Start difference. First operand 5279 states and 24941 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:26,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:26,613 INFO L93 Difference]: Finished difference Result 11494 states and 51334 transitions. [2021-06-05 03:42:26,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:26,613 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:26,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:26,640 INFO L225 Difference]: With dead ends: 11494 [2021-06-05 03:42:26,640 INFO L226 Difference]: Without dead ends: 10875 [2021-06-05 03:42:26,640 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 149.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:26,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10875 states. [2021-06-05 03:42:26,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10875 to 5131. [2021-06-05 03:42:26,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.752631578947368) internal successors, (24381), 5130 states have internal predecessors, (24381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:26,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24381 transitions. [2021-06-05 03:42:26,867 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24381 transitions. Word has length 29 [2021-06-05 03:42:26,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:26,867 INFO L482 AbstractCegarLoop]: Abstraction has 5131 states and 24381 transitions. [2021-06-05 03:42:26,867 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:26,868 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24381 transitions. [2021-06-05 03:42:26,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:26,876 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:26,876 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:26,876 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable424 [2021-06-05 03:42:26,876 INFO L430 AbstractCegarLoop]: === Iteration 426 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:26,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:26,877 INFO L82 PathProgramCache]: Analyzing trace with hash -770859479, now seen corresponding path program 421 times [2021-06-05 03:42:26,877 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:26,877 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640016605] [2021-06-05 03:42:26,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:26,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:26,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:26,991 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:26,991 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640016605] [2021-06-05 03:42:26,991 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640016605] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:26,991 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:26,991 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:26,992 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328368674] [2021-06-05 03:42:26,992 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:26,992 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:26,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:26,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:26,992 INFO L87 Difference]: Start difference. First operand 5131 states and 24381 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:27,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:27,111 INFO L93 Difference]: Finished difference Result 11108 states and 49804 transitions. [2021-06-05 03:42:27,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:27,112 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:27,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:27,138 INFO L225 Difference]: With dead ends: 11108 [2021-06-05 03:42:27,138 INFO L226 Difference]: Without dead ends: 10693 [2021-06-05 03:42:27,139 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 139.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:27,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10693 states. [2021-06-05 03:42:27,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10693 to 5203. [2021-06-05 03:42:27,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5203 states, 5202 states have (on average 4.744521337946943) internal successors, (24681), 5202 states have internal predecessors, (24681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:27,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5203 states to 5203 states and 24681 transitions. [2021-06-05 03:42:27,369 INFO L78 Accepts]: Start accepts. Automaton has 5203 states and 24681 transitions. Word has length 29 [2021-06-05 03:42:27,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:27,369 INFO L482 AbstractCegarLoop]: Abstraction has 5203 states and 24681 transitions. [2021-06-05 03:42:27,369 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:27,369 INFO L276 IsEmpty]: Start isEmpty. Operand 5203 states and 24681 transitions. [2021-06-05 03:42:27,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:27,378 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:27,378 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:27,378 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable425 [2021-06-05 03:42:27,378 INFO L430 AbstractCegarLoop]: === Iteration 427 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:27,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:27,379 INFO L82 PathProgramCache]: Analyzing trace with hash -1285540405, now seen corresponding path program 422 times [2021-06-05 03:42:27,379 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:27,379 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16560133] [2021-06-05 03:42:27,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:27,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:27,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:27,495 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:27,495 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16560133] [2021-06-05 03:42:27,495 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16560133] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:27,495 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:27,496 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:27,496 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729989242] [2021-06-05 03:42:27,496 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:27,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:27,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:27,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:27,496 INFO L87 Difference]: Start difference. First operand 5203 states and 24681 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:27,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:27,620 INFO L93 Difference]: Finished difference Result 11168 states and 50020 transitions. [2021-06-05 03:42:27,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:27,620 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:27,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:27,647 INFO L225 Difference]: With dead ends: 11168 [2021-06-05 03:42:27,647 INFO L226 Difference]: Without dead ends: 10645 [2021-06-05 03:42:27,647 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 141.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:27,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10645 states. [2021-06-05 03:42:27,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10645 to 5155. [2021-06-05 03:42:27,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5155 states, 5154 states have (on average 4.749902987970509) internal successors, (24481), 5154 states have internal predecessors, (24481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:27,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 24481 transitions. [2021-06-05 03:42:27,871 INFO L78 Accepts]: Start accepts. Automaton has 5155 states and 24481 transitions. Word has length 29 [2021-06-05 03:42:27,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:27,872 INFO L482 AbstractCegarLoop]: Abstraction has 5155 states and 24481 transitions. [2021-06-05 03:42:27,872 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:27,872 INFO L276 IsEmpty]: Start isEmpty. Operand 5155 states and 24481 transitions. [2021-06-05 03:42:27,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:27,880 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:27,881 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:27,881 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable426 [2021-06-05 03:42:27,881 INFO L430 AbstractCegarLoop]: === Iteration 428 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:27,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:27,881 INFO L82 PathProgramCache]: Analyzing trace with hash -1251761525, now seen corresponding path program 423 times [2021-06-05 03:42:27,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:27,881 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928810193] [2021-06-05 03:42:27,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:27,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:27,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:27,983 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:27,983 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928810193] [2021-06-05 03:42:27,983 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928810193] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:27,983 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:27,983 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:27,983 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191035674] [2021-06-05 03:42:27,983 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:27,983 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:27,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:27,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:27,983 INFO L87 Difference]: Start difference. First operand 5155 states and 24481 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:28,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:28,102 INFO L93 Difference]: Finished difference Result 11104 states and 49768 transitions. [2021-06-05 03:42:28,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:28,102 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:28,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:28,128 INFO L225 Difference]: With dead ends: 11104 [2021-06-05 03:42:28,129 INFO L226 Difference]: Without dead ends: 10689 [2021-06-05 03:42:28,129 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 126.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:28,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10689 states. [2021-06-05 03:42:28,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10689 to 5203. [2021-06-05 03:42:28,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5203 states, 5202 states have (on average 4.739907727797001) internal successors, (24657), 5202 states have internal predecessors, (24657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:28,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5203 states to 5203 states and 24657 transitions. [2021-06-05 03:42:28,354 INFO L78 Accepts]: Start accepts. Automaton has 5203 states and 24657 transitions. Word has length 29 [2021-06-05 03:42:28,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:28,354 INFO L482 AbstractCegarLoop]: Abstraction has 5203 states and 24657 transitions. [2021-06-05 03:42:28,354 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:28,354 INFO L276 IsEmpty]: Start isEmpty. Operand 5203 states and 24657 transitions. [2021-06-05 03:42:28,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:28,363 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:28,363 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:28,363 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable427 [2021-06-05 03:42:28,363 INFO L430 AbstractCegarLoop]: === Iteration 429 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:28,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:28,364 INFO L82 PathProgramCache]: Analyzing trace with hash 431414603, now seen corresponding path program 424 times [2021-06-05 03:42:28,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:28,364 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197414112] [2021-06-05 03:42:28,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:28,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:28,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:28,467 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:28,467 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197414112] [2021-06-05 03:42:28,467 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197414112] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:28,467 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:28,468 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:28,468 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635928812] [2021-06-05 03:42:28,468 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:28,468 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:28,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:28,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:28,468 INFO L87 Difference]: Start difference. First operand 5203 states and 24657 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:28,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:28,587 INFO L93 Difference]: Finished difference Result 11160 states and 49972 transitions. [2021-06-05 03:42:28,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:28,587 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:28,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:28,613 INFO L225 Difference]: With dead ends: 11160 [2021-06-05 03:42:28,614 INFO L226 Difference]: Without dead ends: 10641 [2021-06-05 03:42:28,614 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:28,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10641 states. [2021-06-05 03:42:28,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10641 to 5155. [2021-06-05 03:42:28,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5155 states, 5154 states have (on average 4.745246410554909) internal successors, (24457), 5154 states have internal predecessors, (24457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:28,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 24457 transitions. [2021-06-05 03:42:28,835 INFO L78 Accepts]: Start accepts. Automaton has 5155 states and 24457 transitions. Word has length 29 [2021-06-05 03:42:28,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:28,835 INFO L482 AbstractCegarLoop]: Abstraction has 5155 states and 24457 transitions. [2021-06-05 03:42:28,836 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:28,836 INFO L276 IsEmpty]: Start isEmpty. Operand 5155 states and 24457 transitions. [2021-06-05 03:42:28,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:28,844 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:28,844 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:28,844 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable428 [2021-06-05 03:42:28,844 INFO L430 AbstractCegarLoop]: === Iteration 430 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:28,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:28,845 INFO L82 PathProgramCache]: Analyzing trace with hash -927914899, now seen corresponding path program 425 times [2021-06-05 03:42:28,845 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:28,845 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138006165] [2021-06-05 03:42:28,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:28,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:28,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:28,947 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:28,947 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138006165] [2021-06-05 03:42:28,947 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138006165] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:28,947 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:28,947 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:28,947 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035199784] [2021-06-05 03:42:28,947 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:28,948 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:28,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:28,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:28,948 INFO L87 Difference]: Start difference. First operand 5155 states and 24457 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:29,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:29,058 INFO L93 Difference]: Finished difference Result 11252 states and 50412 transitions. [2021-06-05 03:42:29,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:29,059 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:29,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:29,085 INFO L225 Difference]: With dead ends: 11252 [2021-06-05 03:42:29,085 INFO L226 Difference]: Without dead ends: 10777 [2021-06-05 03:42:29,085 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 127.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:29,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10777 states. [2021-06-05 03:42:29,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10777 to 5231. [2021-06-05 03:42:29,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5231 states, 5230 states have (on average 4.731357552581262) internal successors, (24745), 5230 states have internal predecessors, (24745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:29,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5231 states to 5231 states and 24745 transitions. [2021-06-05 03:42:29,309 INFO L78 Accepts]: Start accepts. Automaton has 5231 states and 24745 transitions. Word has length 29 [2021-06-05 03:42:29,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:29,309 INFO L482 AbstractCegarLoop]: Abstraction has 5231 states and 24745 transitions. [2021-06-05 03:42:29,309 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:29,309 INFO L276 IsEmpty]: Start isEmpty. Operand 5231 states and 24745 transitions. [2021-06-05 03:42:29,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:29,317 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:29,317 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:29,318 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable429 [2021-06-05 03:42:29,318 INFO L430 AbstractCegarLoop]: === Iteration 431 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:29,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:29,318 INFO L82 PathProgramCache]: Analyzing trace with hash 1323715403, now seen corresponding path program 426 times [2021-06-05 03:42:29,318 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:29,318 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410931579] [2021-06-05 03:42:29,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:29,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:29,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:29,420 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:29,420 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410931579] [2021-06-05 03:42:29,420 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410931579] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:29,420 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:29,420 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:29,420 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308444126] [2021-06-05 03:42:29,421 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:29,421 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:29,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:29,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:29,421 INFO L87 Difference]: Start difference. First operand 5231 states and 24745 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:29,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:29,533 INFO L93 Difference]: Finished difference Result 11248 states and 50324 transitions. [2021-06-05 03:42:29,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:29,533 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:29,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:29,559 INFO L225 Difference]: With dead ends: 11248 [2021-06-05 03:42:29,560 INFO L226 Difference]: Without dead ends: 10677 [2021-06-05 03:42:29,560 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 127.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:29,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10677 states. [2021-06-05 03:42:29,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10677 to 5131. [2021-06-05 03:42:29,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.750292397660819) internal successors, (24369), 5130 states have internal predecessors, (24369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:29,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24369 transitions. [2021-06-05 03:42:29,793 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24369 transitions. Word has length 29 [2021-06-05 03:42:29,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:29,793 INFO L482 AbstractCegarLoop]: Abstraction has 5131 states and 24369 transitions. [2021-06-05 03:42:29,793 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:29,793 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24369 transitions. [2021-06-05 03:42:29,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:29,802 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:29,802 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:29,802 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable430 [2021-06-05 03:42:29,802 INFO L430 AbstractCegarLoop]: === Iteration 432 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:29,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:29,802 INFO L82 PathProgramCache]: Analyzing trace with hash 957023341, now seen corresponding path program 427 times [2021-06-05 03:42:29,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:29,803 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278805135] [2021-06-05 03:42:29,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:29,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:29,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:29,907 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:29,907 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278805135] [2021-06-05 03:42:29,907 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278805135] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:29,907 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:29,907 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:29,907 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353713859] [2021-06-05 03:42:29,907 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:29,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:29,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:29,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:29,908 INFO L87 Difference]: Start difference. First operand 5131 states and 24369 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:30,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:30,001 INFO L93 Difference]: Finished difference Result 11703 states and 52396 transitions. [2021-06-05 03:42:30,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:30,001 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:30,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:30,028 INFO L225 Difference]: With dead ends: 11703 [2021-06-05 03:42:30,029 INFO L226 Difference]: Without dead ends: 11161 [2021-06-05 03:42:30,029 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 112.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:30,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11161 states. [2021-06-05 03:42:30,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11161 to 5295. [2021-06-05 03:42:30,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5295 states, 5294 states have (on average 4.732716282584057) internal successors, (25055), 5294 states have internal predecessors, (25055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:30,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5295 states to 5295 states and 25055 transitions. [2021-06-05 03:42:30,255 INFO L78 Accepts]: Start accepts. Automaton has 5295 states and 25055 transitions. Word has length 29 [2021-06-05 03:42:30,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:30,255 INFO L482 AbstractCegarLoop]: Abstraction has 5295 states and 25055 transitions. [2021-06-05 03:42:30,255 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:30,256 INFO L276 IsEmpty]: Start isEmpty. Operand 5295 states and 25055 transitions. [2021-06-05 03:42:30,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:30,264 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:30,264 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:30,264 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable431 [2021-06-05 03:42:30,264 INFO L430 AbstractCegarLoop]: === Iteration 433 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:30,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:30,265 INFO L82 PathProgramCache]: Analyzing trace with hash 216071243, now seen corresponding path program 428 times [2021-06-05 03:42:30,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:30,265 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585744457] [2021-06-05 03:42:30,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:30,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:30,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:30,369 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:30,369 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585744457] [2021-06-05 03:42:30,369 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585744457] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:30,369 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:30,369 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:30,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651057684] [2021-06-05 03:42:30,370 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:30,370 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:30,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:30,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:30,370 INFO L87 Difference]: Start difference. First operand 5295 states and 25055 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:30,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:30,483 INFO L93 Difference]: Finished difference Result 11636 states and 52023 transitions. [2021-06-05 03:42:30,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:30,483 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:30,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:30,511 INFO L225 Difference]: With dead ends: 11636 [2021-06-05 03:42:30,511 INFO L226 Difference]: Without dead ends: 11051 [2021-06-05 03:42:30,511 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 130.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:30,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11051 states. [2021-06-05 03:42:30,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11051 to 5185. [2021-06-05 03:42:30,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5185 states, 5184 states have (on average 4.744598765432099) internal successors, (24596), 5184 states have internal predecessors, (24596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:30,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5185 states to 5185 states and 24596 transitions. [2021-06-05 03:42:30,771 INFO L78 Accepts]: Start accepts. Automaton has 5185 states and 24596 transitions. Word has length 29 [2021-06-05 03:42:30,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:30,771 INFO L482 AbstractCegarLoop]: Abstraction has 5185 states and 24596 transitions. [2021-06-05 03:42:30,771 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:30,771 INFO L276 IsEmpty]: Start isEmpty. Operand 5185 states and 24596 transitions. [2021-06-05 03:42:30,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:30,779 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:30,780 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:30,780 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable432 [2021-06-05 03:42:30,780 INFO L430 AbstractCegarLoop]: === Iteration 434 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:30,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:30,780 INFO L82 PathProgramCache]: Analyzing trace with hash 110226379, now seen corresponding path program 429 times [2021-06-05 03:42:30,780 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:30,780 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728237783] [2021-06-05 03:42:30,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:30,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:30,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:30,893 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:30,893 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728237783] [2021-06-05 03:42:30,893 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728237783] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:30,893 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:30,893 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:30,893 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523269502] [2021-06-05 03:42:30,893 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:30,893 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:30,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:30,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:30,893 INFO L87 Difference]: Start difference. First operand 5185 states and 24596 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:30,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:30,988 INFO L93 Difference]: Finished difference Result 11697 states and 52323 transitions. [2021-06-05 03:42:30,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:30,989 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:30,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:31,016 INFO L225 Difference]: With dead ends: 11697 [2021-06-05 03:42:31,016 INFO L226 Difference]: Without dead ends: 11155 [2021-06-05 03:42:31,016 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 120.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:31,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11155 states. [2021-06-05 03:42:31,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11155 to 5293. [2021-06-05 03:42:31,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5293 states, 5292 states have (on average 4.723356009070295) internal successors, (24996), 5292 states have internal predecessors, (24996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:31,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5293 states to 5293 states and 24996 transitions. [2021-06-05 03:42:31,243 INFO L78 Accepts]: Start accepts. Automaton has 5293 states and 24996 transitions. Word has length 29 [2021-06-05 03:42:31,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:31,243 INFO L482 AbstractCegarLoop]: Abstraction has 5293 states and 24996 transitions. [2021-06-05 03:42:31,243 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:31,243 INFO L276 IsEmpty]: Start isEmpty. Operand 5293 states and 24996 transitions. [2021-06-05 03:42:31,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:31,252 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:31,252 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:31,252 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable433 [2021-06-05 03:42:31,252 INFO L430 AbstractCegarLoop]: === Iteration 435 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:31,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:31,252 INFO L82 PathProgramCache]: Analyzing trace with hash -1689889589, now seen corresponding path program 430 times [2021-06-05 03:42:31,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:31,253 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585358059] [2021-06-05 03:42:31,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:31,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:31,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:31,365 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:31,365 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585358059] [2021-06-05 03:42:31,365 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585358059] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:31,366 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:31,366 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:31,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083982271] [2021-06-05 03:42:31,366 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:31,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:31,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:31,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:31,366 INFO L87 Difference]: Start difference. First operand 5293 states and 24996 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:31,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:31,499 INFO L93 Difference]: Finished difference Result 11626 states and 51940 transitions. [2021-06-05 03:42:31,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:31,499 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:31,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:31,528 INFO L225 Difference]: With dead ends: 11626 [2021-06-05 03:42:31,529 INFO L226 Difference]: Without dead ends: 11047 [2021-06-05 03:42:31,529 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 137.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:31,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11047 states. [2021-06-05 03:42:31,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11047 to 5185. [2021-06-05 03:42:31,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5185 states, 5184 states have (on average 4.734182098765432) internal successors, (24542), 5184 states have internal predecessors, (24542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:31,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5185 states to 5185 states and 24542 transitions. [2021-06-05 03:42:31,760 INFO L78 Accepts]: Start accepts. Automaton has 5185 states and 24542 transitions. Word has length 29 [2021-06-05 03:42:31,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:31,760 INFO L482 AbstractCegarLoop]: Abstraction has 5185 states and 24542 transitions. [2021-06-05 03:42:31,760 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:31,760 INFO L276 IsEmpty]: Start isEmpty. Operand 5185 states and 24542 transitions. [2021-06-05 03:42:31,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:31,768 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:31,768 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:31,768 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable434 [2021-06-05 03:42:31,768 INFO L430 AbstractCegarLoop]: === Iteration 436 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:31,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:31,769 INFO L82 PathProgramCache]: Analyzing trace with hash -143606487, now seen corresponding path program 431 times [2021-06-05 03:42:31,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:31,769 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112034270] [2021-06-05 03:42:31,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:31,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:31,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:31,869 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:31,869 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112034270] [2021-06-05 03:42:31,869 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112034270] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:31,869 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:31,869 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:31,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904218498] [2021-06-05 03:42:31,869 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:31,869 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:31,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:31,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:31,869 INFO L87 Difference]: Start difference. First operand 5185 states and 24542 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:31,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:31,982 INFO L93 Difference]: Finished difference Result 11531 states and 51599 transitions. [2021-06-05 03:42:31,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:31,982 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:31,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:32,010 INFO L225 Difference]: With dead ends: 11531 [2021-06-05 03:42:32,010 INFO L226 Difference]: Without dead ends: 11056 [2021-06-05 03:42:32,010 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 124.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:32,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11056 states. [2021-06-05 03:42:32,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11056 to 5261. [2021-06-05 03:42:32,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5261 states, 5260 states have (on average 4.720532319391635) internal successors, (24830), 5260 states have internal predecessors, (24830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:32,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5261 states to 5261 states and 24830 transitions. [2021-06-05 03:42:32,244 INFO L78 Accepts]: Start accepts. Automaton has 5261 states and 24830 transitions. Word has length 29 [2021-06-05 03:42:32,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:32,245 INFO L482 AbstractCegarLoop]: Abstraction has 5261 states and 24830 transitions. [2021-06-05 03:42:32,245 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:32,245 INFO L276 IsEmpty]: Start isEmpty. Operand 5261 states and 24830 transitions. [2021-06-05 03:42:32,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:32,253 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:32,253 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:32,254 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable435 [2021-06-05 03:42:32,254 INFO L430 AbstractCegarLoop]: === Iteration 437 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:32,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:32,254 INFO L82 PathProgramCache]: Analyzing trace with hash 937456139, now seen corresponding path program 432 times [2021-06-05 03:42:32,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:32,254 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131370137] [2021-06-05 03:42:32,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:32,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:32,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:32,357 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:32,357 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131370137] [2021-06-05 03:42:32,357 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131370137] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:32,357 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:32,357 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:32,357 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002616607] [2021-06-05 03:42:32,357 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:32,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:32,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:32,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:32,358 INFO L87 Difference]: Start difference. First operand 5261 states and 24830 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:32,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:32,474 INFO L93 Difference]: Finished difference Result 11527 states and 51511 transitions. [2021-06-05 03:42:32,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:32,474 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:32,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:32,501 INFO L225 Difference]: With dead ends: 11527 [2021-06-05 03:42:32,502 INFO L226 Difference]: Without dead ends: 10906 [2021-06-05 03:42:32,502 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 127.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:32,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10906 states. [2021-06-05 03:42:32,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10906 to 5111. [2021-06-05 03:42:32,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5111 states, 5110 states have (on average 4.7555772994129155) internal successors, (24301), 5110 states have internal predecessors, (24301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:32,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5111 states to 5111 states and 24301 transitions. [2021-06-05 03:42:32,736 INFO L78 Accepts]: Start accepts. Automaton has 5111 states and 24301 transitions. Word has length 29 [2021-06-05 03:42:32,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:32,736 INFO L482 AbstractCegarLoop]: Abstraction has 5111 states and 24301 transitions. [2021-06-05 03:42:32,736 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:32,736 INFO L276 IsEmpty]: Start isEmpty. Operand 5111 states and 24301 transitions. [2021-06-05 03:42:32,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:32,745 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:32,745 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:32,745 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable436 [2021-06-05 03:42:32,745 INFO L430 AbstractCegarLoop]: === Iteration 438 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:32,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:32,745 INFO L82 PathProgramCache]: Analyzing trace with hash -518688185, now seen corresponding path program 433 times [2021-06-05 03:42:32,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:32,746 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067569565] [2021-06-05 03:42:32,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:32,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:32,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:32,858 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:32,858 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067569565] [2021-06-05 03:42:32,858 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067569565] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:32,858 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:32,858 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:32,858 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986511658] [2021-06-05 03:42:32,858 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:32,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:32,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:32,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:32,859 INFO L87 Difference]: Start difference. First operand 5111 states and 24301 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:32,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:32,970 INFO L93 Difference]: Finished difference Result 10537 states and 47177 transitions. [2021-06-05 03:42:32,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:32,970 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:32,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:32,995 INFO L225 Difference]: With dead ends: 10537 [2021-06-05 03:42:32,996 INFO L226 Difference]: Without dead ends: 10122 [2021-06-05 03:42:32,996 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 136.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:33,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10122 states. [2021-06-05 03:42:33,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10122 to 5167. [2021-06-05 03:42:33,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5167 states, 5166 states have (on average 4.749709639953543) internal successors, (24537), 5166 states have internal predecessors, (24537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:33,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 24537 transitions. [2021-06-05 03:42:33,213 INFO L78 Accepts]: Start accepts. Automaton has 5167 states and 24537 transitions. Word has length 29 [2021-06-05 03:42:33,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:33,213 INFO L482 AbstractCegarLoop]: Abstraction has 5167 states and 24537 transitions. [2021-06-05 03:42:33,213 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:33,213 INFO L276 IsEmpty]: Start isEmpty. Operand 5167 states and 24537 transitions. [2021-06-05 03:42:33,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:33,222 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:33,222 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:33,222 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable437 [2021-06-05 03:42:33,222 INFO L430 AbstractCegarLoop]: === Iteration 439 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:33,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:33,222 INFO L82 PathProgramCache]: Analyzing trace with hash 1374158117, now seen corresponding path program 434 times [2021-06-05 03:42:33,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:33,222 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128629168] [2021-06-05 03:42:33,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:33,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:33,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:33,346 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:33,346 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128629168] [2021-06-05 03:42:33,346 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128629168] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:33,346 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:33,346 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:33,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765272447] [2021-06-05 03:42:33,346 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:33,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:33,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:33,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:33,347 INFO L87 Difference]: Start difference. First operand 5167 states and 24537 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:33,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:33,449 INFO L93 Difference]: Finished difference Result 10537 states and 47145 transitions. [2021-06-05 03:42:33,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:33,450 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:33,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:33,476 INFO L225 Difference]: With dead ends: 10537 [2021-06-05 03:42:33,476 INFO L226 Difference]: Without dead ends: 10090 [2021-06-05 03:42:33,476 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:33,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10090 states. [2021-06-05 03:42:33,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10090 to 5135. [2021-06-05 03:42:33,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5135 states, 5134 states have (on average 4.754382547721075) internal successors, (24409), 5134 states have internal predecessors, (24409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:33,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5135 states to 5135 states and 24409 transitions. [2021-06-05 03:42:33,699 INFO L78 Accepts]: Start accepts. Automaton has 5135 states and 24409 transitions. Word has length 29 [2021-06-05 03:42:33,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:33,699 INFO L482 AbstractCegarLoop]: Abstraction has 5135 states and 24409 transitions. [2021-06-05 03:42:33,699 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:33,699 INFO L276 IsEmpty]: Start isEmpty. Operand 5135 states and 24409 transitions. [2021-06-05 03:42:33,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:33,708 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:33,708 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:33,708 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable438 [2021-06-05 03:42:33,708 INFO L430 AbstractCegarLoop]: === Iteration 440 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:33,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:33,708 INFO L82 PathProgramCache]: Analyzing trace with hash -999590231, now seen corresponding path program 435 times [2021-06-05 03:42:33,708 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:33,708 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188937801] [2021-06-05 03:42:33,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:33,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:33,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:33,834 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:33,834 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188937801] [2021-06-05 03:42:33,834 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188937801] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:33,834 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:33,834 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:33,835 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558779870] [2021-06-05 03:42:33,835 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:33,835 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:33,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:33,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:33,835 INFO L87 Difference]: Start difference. First operand 5135 states and 24409 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:33,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:33,952 INFO L93 Difference]: Finished difference Result 10613 states and 47505 transitions. [2021-06-05 03:42:33,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:33,952 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:33,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:33,977 INFO L225 Difference]: With dead ends: 10613 [2021-06-05 03:42:33,977 INFO L226 Difference]: Without dead ends: 10198 [2021-06-05 03:42:33,978 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 149.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:34,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10198 states. [2021-06-05 03:42:34,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10198 to 5183. [2021-06-05 03:42:34,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5183 states, 5182 states have (on average 4.744307217290621) internal successors, (24585), 5182 states have internal predecessors, (24585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:34,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5183 states to 5183 states and 24585 transitions. [2021-06-05 03:42:34,194 INFO L78 Accepts]: Start accepts. Automaton has 5183 states and 24585 transitions. Word has length 29 [2021-06-05 03:42:34,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:34,194 INFO L482 AbstractCegarLoop]: Abstraction has 5183 states and 24585 transitions. [2021-06-05 03:42:34,194 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:34,194 INFO L276 IsEmpty]: Start isEmpty. Operand 5183 states and 24585 transitions. [2021-06-05 03:42:34,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:34,203 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:34,203 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:34,203 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable439 [2021-06-05 03:42:34,203 INFO L430 AbstractCegarLoop]: === Iteration 441 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:34,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:34,204 INFO L82 PathProgramCache]: Analyzing trace with hash 1299257833, now seen corresponding path program 436 times [2021-06-05 03:42:34,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:34,204 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468686023] [2021-06-05 03:42:34,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:34,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:34,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:34,331 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:34,331 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468686023] [2021-06-05 03:42:34,331 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468686023] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:34,331 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:34,331 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:34,331 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130730395] [2021-06-05 03:42:34,331 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:34,331 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:34,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:34,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:34,332 INFO L87 Difference]: Start difference. First operand 5183 states and 24585 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:34,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:34,449 INFO L93 Difference]: Finished difference Result 10673 states and 47721 transitions. [2021-06-05 03:42:34,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:34,450 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:34,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:34,475 INFO L225 Difference]: With dead ends: 10673 [2021-06-05 03:42:34,475 INFO L226 Difference]: Without dead ends: 10150 [2021-06-05 03:42:34,475 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 152.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:34,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10150 states. [2021-06-05 03:42:34,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10150 to 5135. [2021-06-05 03:42:34,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5135 states, 5134 states have (on average 4.751266069341644) internal successors, (24393), 5134 states have internal predecessors, (24393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:34,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5135 states to 5135 states and 24393 transitions. [2021-06-05 03:42:34,699 INFO L78 Accepts]: Start accepts. Automaton has 5135 states and 24393 transitions. Word has length 29 [2021-06-05 03:42:34,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:34,699 INFO L482 AbstractCegarLoop]: Abstraction has 5135 states and 24393 transitions. [2021-06-05 03:42:34,699 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:34,699 INFO L276 IsEmpty]: Start isEmpty. Operand 5135 states and 24393 transitions. [2021-06-05 03:42:34,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:34,708 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:34,708 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:34,708 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable440 [2021-06-05 03:42:34,708 INFO L430 AbstractCegarLoop]: === Iteration 442 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:34,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:34,708 INFO L82 PathProgramCache]: Analyzing trace with hash 1243462053, now seen corresponding path program 437 times [2021-06-05 03:42:34,708 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:34,708 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146501033] [2021-06-05 03:42:34,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:34,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:34,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:34,834 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:34,834 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146501033] [2021-06-05 03:42:34,834 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146501033] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:34,834 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:34,834 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:34,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48990526] [2021-06-05 03:42:34,834 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:34,834 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:34,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:34,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:34,834 INFO L87 Difference]: Start difference. First operand 5135 states and 24393 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:34,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:34,926 INFO L93 Difference]: Finished difference Result 10613 states and 47489 transitions. [2021-06-05 03:42:34,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:34,927 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:34,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:34,951 INFO L225 Difference]: With dead ends: 10613 [2021-06-05 03:42:34,952 INFO L226 Difference]: Without dead ends: 10198 [2021-06-05 03:42:34,952 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 131.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:35,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10198 states. [2021-06-05 03:42:35,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10198 to 5183. [2021-06-05 03:42:35,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5183 states, 5182 states have (on average 4.741219606329603) internal successors, (24569), 5182 states have internal predecessors, (24569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:35,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5183 states to 5183 states and 24569 transitions. [2021-06-05 03:42:35,170 INFO L78 Accepts]: Start accepts. Automaton has 5183 states and 24569 transitions. Word has length 29 [2021-06-05 03:42:35,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:35,170 INFO L482 AbstractCegarLoop]: Abstraction has 5183 states and 24569 transitions. [2021-06-05 03:42:35,170 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:35,170 INFO L276 IsEmpty]: Start isEmpty. Operand 5183 states and 24569 transitions. [2021-06-05 03:42:35,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:35,179 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:35,179 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:35,179 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable441 [2021-06-05 03:42:35,179 INFO L430 AbstractCegarLoop]: === Iteration 443 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:35,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:35,179 INFO L82 PathProgramCache]: Analyzing trace with hash -1970442617, now seen corresponding path program 438 times [2021-06-05 03:42:35,179 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:35,179 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754504059] [2021-06-05 03:42:35,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:35,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:35,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:35,303 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:35,303 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754504059] [2021-06-05 03:42:35,303 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754504059] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:35,303 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:35,303 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:35,303 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055040064] [2021-06-05 03:42:35,303 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:35,303 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:35,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:35,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:35,304 INFO L87 Difference]: Start difference. First operand 5183 states and 24569 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:35,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:35,434 INFO L93 Difference]: Finished difference Result 10673 states and 47705 transitions. [2021-06-05 03:42:35,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:35,435 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:35,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:35,461 INFO L225 Difference]: With dead ends: 10673 [2021-06-05 03:42:35,462 INFO L226 Difference]: Without dead ends: 10134 [2021-06-05 03:42:35,462 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 148.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:35,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10134 states. [2021-06-05 03:42:35,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10134 to 5119. [2021-06-05 03:42:35,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5119 states, 5118 states have (on average 4.755177803829621) internal successors, (24337), 5118 states have internal predecessors, (24337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:35,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5119 states to 5119 states and 24337 transitions. [2021-06-05 03:42:35,681 INFO L78 Accepts]: Start accepts. Automaton has 5119 states and 24337 transitions. Word has length 29 [2021-06-05 03:42:35,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:35,681 INFO L482 AbstractCegarLoop]: Abstraction has 5119 states and 24337 transitions. [2021-06-05 03:42:35,681 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:35,681 INFO L276 IsEmpty]: Start isEmpty. Operand 5119 states and 24337 transitions. [2021-06-05 03:42:35,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:35,690 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:35,690 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:35,690 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable442 [2021-06-05 03:42:35,690 INFO L430 AbstractCegarLoop]: === Iteration 444 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:35,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:35,690 INFO L82 PathProgramCache]: Analyzing trace with hash 1190913577, now seen corresponding path program 439 times [2021-06-05 03:42:35,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:35,690 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589899967] [2021-06-05 03:42:35,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:35,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:35,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:35,794 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:35,794 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589899967] [2021-06-05 03:42:35,794 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589899967] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:35,795 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:35,795 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:35,795 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780426941] [2021-06-05 03:42:35,795 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:35,795 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:35,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:35,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:35,795 INFO L87 Difference]: Start difference. First operand 5119 states and 24337 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:35,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:35,904 INFO L93 Difference]: Finished difference Result 10533 states and 47157 transitions. [2021-06-05 03:42:35,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:35,904 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:35,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:35,930 INFO L225 Difference]: With dead ends: 10533 [2021-06-05 03:42:35,930 INFO L226 Difference]: Without dead ends: 10118 [2021-06-05 03:42:35,930 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:36,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10118 states. [2021-06-05 03:42:36,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10118 to 5167. [2021-06-05 03:42:36,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5167 states, 5166 states have (on average 4.748161053039102) internal successors, (24529), 5166 states have internal predecessors, (24529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:36,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 24529 transitions. [2021-06-05 03:42:36,154 INFO L78 Accepts]: Start accepts. Automaton has 5167 states and 24529 transitions. Word has length 29 [2021-06-05 03:42:36,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:36,154 INFO L482 AbstractCegarLoop]: Abstraction has 5167 states and 24529 transitions. [2021-06-05 03:42:36,154 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:36,154 INFO L276 IsEmpty]: Start isEmpty. Operand 5167 states and 24529 transitions. [2021-06-05 03:42:36,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:36,162 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:36,163 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:36,163 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable443 [2021-06-05 03:42:36,163 INFO L430 AbstractCegarLoop]: === Iteration 445 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:36,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:36,163 INFO L82 PathProgramCache]: Analyzing trace with hash -1211207417, now seen corresponding path program 440 times [2021-06-05 03:42:36,163 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:36,163 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361637249] [2021-06-05 03:42:36,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:36,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:36,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:36,270 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:36,270 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361637249] [2021-06-05 03:42:36,270 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361637249] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:36,270 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:36,270 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:36,270 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281967825] [2021-06-05 03:42:36,270 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:36,270 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:36,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:36,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:36,270 INFO L87 Difference]: Start difference. First operand 5167 states and 24529 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:36,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:36,366 INFO L93 Difference]: Finished difference Result 10533 states and 47125 transitions. [2021-06-05 03:42:36,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:36,366 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:36,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:36,391 INFO L225 Difference]: With dead ends: 10533 [2021-06-05 03:42:36,391 INFO L226 Difference]: Without dead ends: 10086 [2021-06-05 03:42:36,391 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 114.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:36,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10086 states. [2021-06-05 03:42:36,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10086 to 5135. [2021-06-05 03:42:36,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5135 states, 5134 states have (on average 4.75282430853136) internal successors, (24401), 5134 states have internal predecessors, (24401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:36,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5135 states to 5135 states and 24401 transitions. [2021-06-05 03:42:36,611 INFO L78 Accepts]: Start accepts. Automaton has 5135 states and 24401 transitions. Word has length 29 [2021-06-05 03:42:36,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:36,611 INFO L482 AbstractCegarLoop]: Abstraction has 5135 states and 24401 transitions. [2021-06-05 03:42:36,611 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:36,611 INFO L276 IsEmpty]: Start isEmpty. Operand 5135 states and 24401 transitions. [2021-06-05 03:42:36,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:36,620 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:36,620 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:36,620 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable444 [2021-06-05 03:42:36,620 INFO L430 AbstractCegarLoop]: === Iteration 446 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:36,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:36,620 INFO L82 PathProgramCache]: Analyzing trace with hash -2011083223, now seen corresponding path program 441 times [2021-06-05 03:42:36,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:36,620 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324031599] [2021-06-05 03:42:36,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:36,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:36,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:36,724 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:36,724 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324031599] [2021-06-05 03:42:36,724 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324031599] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:36,724 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:36,724 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:36,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524647054] [2021-06-05 03:42:36,724 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:36,724 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:36,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:36,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:36,724 INFO L87 Difference]: Start difference. First operand 5135 states and 24401 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:36,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:36,841 INFO L93 Difference]: Finished difference Result 10605 states and 47473 transitions. [2021-06-05 03:42:36,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:36,842 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:36,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:36,867 INFO L225 Difference]: With dead ends: 10605 [2021-06-05 03:42:36,867 INFO L226 Difference]: Without dead ends: 10190 [2021-06-05 03:42:36,867 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:36,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10190 states. [2021-06-05 03:42:37,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10190 to 5183. [2021-06-05 03:42:37,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5183 states, 5182 states have (on average 4.742763411810112) internal successors, (24577), 5182 states have internal predecessors, (24577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:37,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5183 states to 5183 states and 24577 transitions. [2021-06-05 03:42:37,087 INFO L78 Accepts]: Start accepts. Automaton has 5183 states and 24577 transitions. Word has length 29 [2021-06-05 03:42:37,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:37,087 INFO L482 AbstractCegarLoop]: Abstraction has 5183 states and 24577 transitions. [2021-06-05 03:42:37,088 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:37,088 INFO L276 IsEmpty]: Start isEmpty. Operand 5183 states and 24577 transitions. [2021-06-05 03:42:37,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:37,096 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:37,096 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:37,096 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable445 [2021-06-05 03:42:37,096 INFO L430 AbstractCegarLoop]: === Iteration 447 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:37,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:37,097 INFO L82 PathProgramCache]: Analyzing trace with hash -1597189783, now seen corresponding path program 442 times [2021-06-05 03:42:37,097 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:37,097 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974901925] [2021-06-05 03:42:37,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:37,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:37,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:37,200 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:37,200 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974901925] [2021-06-05 03:42:37,200 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974901925] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:37,200 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:37,200 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:37,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847620740] [2021-06-05 03:42:37,200 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:37,200 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:37,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:37,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:37,200 INFO L87 Difference]: Start difference. First operand 5183 states and 24577 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:37,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:37,331 INFO L93 Difference]: Finished difference Result 10661 states and 47677 transitions. [2021-06-05 03:42:37,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:37,331 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:37,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:37,357 INFO L225 Difference]: With dead ends: 10661 [2021-06-05 03:42:37,357 INFO L226 Difference]: Without dead ends: 10142 [2021-06-05 03:42:37,358 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:37,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10142 states. [2021-06-05 03:42:37,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10142 to 5135. [2021-06-05 03:42:37,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5135 states, 5134 states have (on average 4.749707830151928) internal successors, (24385), 5134 states have internal predecessors, (24385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:37,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5135 states to 5135 states and 24385 transitions. [2021-06-05 03:42:37,610 INFO L78 Accepts]: Start accepts. Automaton has 5135 states and 24385 transitions. Word has length 29 [2021-06-05 03:42:37,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:37,610 INFO L482 AbstractCegarLoop]: Abstraction has 5135 states and 24385 transitions. [2021-06-05 03:42:37,610 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:37,610 INFO L276 IsEmpty]: Start isEmpty. Operand 5135 states and 24385 transitions. [2021-06-05 03:42:37,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:37,619 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:37,619 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:37,619 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable446 [2021-06-05 03:42:37,619 INFO L430 AbstractCegarLoop]: === Iteration 448 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:37,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:37,619 INFO L82 PathProgramCache]: Analyzing trace with hash -1037313627, now seen corresponding path program 443 times [2021-06-05 03:42:37,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:37,619 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998559687] [2021-06-05 03:42:37,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:37,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:37,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:37,736 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:37,736 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998559687] [2021-06-05 03:42:37,736 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998559687] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:37,736 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:37,736 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:37,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889783495] [2021-06-05 03:42:37,736 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:37,736 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:37,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:37,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:37,737 INFO L87 Difference]: Start difference. First operand 5135 states and 24385 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:37,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:37,830 INFO L93 Difference]: Finished difference Result 10605 states and 47457 transitions. [2021-06-05 03:42:37,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:37,830 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:37,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:37,855 INFO L225 Difference]: With dead ends: 10605 [2021-06-05 03:42:37,855 INFO L226 Difference]: Without dead ends: 10190 [2021-06-05 03:42:37,855 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 124.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:37,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10190 states. [2021-06-05 03:42:38,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10190 to 5183. [2021-06-05 03:42:38,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5183 states, 5182 states have (on average 4.739675800849093) internal successors, (24561), 5182 states have internal predecessors, (24561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:38,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5183 states to 5183 states and 24561 transitions. [2021-06-05 03:42:38,075 INFO L78 Accepts]: Start accepts. Automaton has 5183 states and 24561 transitions. Word has length 29 [2021-06-05 03:42:38,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:38,075 INFO L482 AbstractCegarLoop]: Abstraction has 5183 states and 24561 transitions. [2021-06-05 03:42:38,075 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:38,075 INFO L276 IsEmpty]: Start isEmpty. Operand 5183 states and 24561 transitions. [2021-06-05 03:42:38,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:38,086 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:38,086 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:38,086 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable447 [2021-06-05 03:42:38,086 INFO L430 AbstractCegarLoop]: === Iteration 449 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:38,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:38,087 INFO L82 PathProgramCache]: Analyzing trace with hash -1244121593, now seen corresponding path program 444 times [2021-06-05 03:42:38,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:38,087 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135366075] [2021-06-05 03:42:38,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:38,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:38,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:38,207 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:38,207 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135366075] [2021-06-05 03:42:38,207 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135366075] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:38,207 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:38,207 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:38,207 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338171924] [2021-06-05 03:42:38,207 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:38,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:38,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:38,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:38,207 INFO L87 Difference]: Start difference. First operand 5183 states and 24561 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:38,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:38,326 INFO L93 Difference]: Finished difference Result 10661 states and 47661 transitions. [2021-06-05 03:42:38,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:38,327 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:38,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:38,352 INFO L225 Difference]: With dead ends: 10661 [2021-06-05 03:42:38,352 INFO L226 Difference]: Without dead ends: 10126 [2021-06-05 03:42:38,352 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 142.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:38,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10126 states. [2021-06-05 03:42:38,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10126 to 5119. [2021-06-05 03:42:38,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5119 states, 5118 states have (on average 4.753614693239546) internal successors, (24329), 5118 states have internal predecessors, (24329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:38,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5119 states to 5119 states and 24329 transitions. [2021-06-05 03:42:38,570 INFO L78 Accepts]: Start accepts. Automaton has 5119 states and 24329 transitions. Word has length 29 [2021-06-05 03:42:38,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:38,570 INFO L482 AbstractCegarLoop]: Abstraction has 5119 states and 24329 transitions. [2021-06-05 03:42:38,570 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:38,570 INFO L276 IsEmpty]: Start isEmpty. Operand 5119 states and 24329 transitions. [2021-06-05 03:42:38,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:38,579 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:38,579 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:38,579 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable448 [2021-06-05 03:42:38,579 INFO L430 AbstractCegarLoop]: === Iteration 450 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:38,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:38,579 INFO L82 PathProgramCache]: Analyzing trace with hash 401527307, now seen corresponding path program 445 times [2021-06-05 03:42:38,579 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:38,579 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339173383] [2021-06-05 03:42:38,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:38,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:38,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:38,704 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:38,704 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339173383] [2021-06-05 03:42:38,704 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339173383] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:38,704 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:38,704 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:38,704 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216737752] [2021-06-05 03:42:38,704 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:38,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:38,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:38,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:38,704 INFO L87 Difference]: Start difference. First operand 5119 states and 24329 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:38,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:38,822 INFO L93 Difference]: Finished difference Result 10721 states and 48021 transitions. [2021-06-05 03:42:38,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:38,822 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:38,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:38,848 INFO L225 Difference]: With dead ends: 10721 [2021-06-05 03:42:38,848 INFO L226 Difference]: Without dead ends: 10306 [2021-06-05 03:42:38,848 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 141.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:38,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10306 states. [2021-06-05 03:42:39,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10306 to 5191. [2021-06-05 03:42:39,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.745472061657033) internal successors, (24629), 5190 states have internal predecessors, (24629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:39,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24629 transitions. [2021-06-05 03:42:39,076 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24629 transitions. Word has length 29 [2021-06-05 03:42:39,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:39,076 INFO L482 AbstractCegarLoop]: Abstraction has 5191 states and 24629 transitions. [2021-06-05 03:42:39,076 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:39,076 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24629 transitions. [2021-06-05 03:42:39,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:39,085 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:39,085 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:39,085 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable449 [2021-06-05 03:42:39,085 INFO L430 AbstractCegarLoop]: === Iteration 451 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:39,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:39,085 INFO L82 PathProgramCache]: Analyzing trace with hash -1594591925, now seen corresponding path program 446 times [2021-06-05 03:42:39,085 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:39,085 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945974529] [2021-06-05 03:42:39,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:39,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:39,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:39,202 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:39,202 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945974529] [2021-06-05 03:42:39,202 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945974529] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:39,202 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:39,202 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:39,202 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120582728] [2021-06-05 03:42:39,202 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:39,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:39,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:39,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:39,202 INFO L87 Difference]: Start difference. First operand 5191 states and 24629 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:39,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:39,315 INFO L93 Difference]: Finished difference Result 10781 states and 48237 transitions. [2021-06-05 03:42:39,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:39,316 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:39,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:39,340 INFO L225 Difference]: With dead ends: 10781 [2021-06-05 03:42:39,341 INFO L226 Difference]: Without dead ends: 10258 [2021-06-05 03:42:39,341 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 141.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:39,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10258 states. [2021-06-05 03:42:39,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10258 to 5143. [2021-06-05 03:42:39,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.750875145857643) internal successors, (24429), 5142 states have internal predecessors, (24429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:39,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24429 transitions. [2021-06-05 03:42:39,559 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24429 transitions. Word has length 29 [2021-06-05 03:42:39,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:39,559 INFO L482 AbstractCegarLoop]: Abstraction has 5143 states and 24429 transitions. [2021-06-05 03:42:39,559 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:39,559 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24429 transitions. [2021-06-05 03:42:39,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:39,568 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:39,568 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:39,568 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable450 [2021-06-05 03:42:39,568 INFO L430 AbstractCegarLoop]: === Iteration 452 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:39,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:39,568 INFO L82 PathProgramCache]: Analyzing trace with hash -1621534231, now seen corresponding path program 447 times [2021-06-05 03:42:39,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:39,568 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292344616] [2021-06-05 03:42:39,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:39,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:39,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:39,674 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:39,674 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292344616] [2021-06-05 03:42:39,674 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292344616] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:39,674 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:39,674 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:39,674 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641146432] [2021-06-05 03:42:39,674 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:39,674 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:39,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:39,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:39,674 INFO L87 Difference]: Start difference. First operand 5143 states and 24429 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:39,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:39,814 INFO L93 Difference]: Finished difference Result 10717 states and 47985 transitions. [2021-06-05 03:42:39,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:39,814 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:39,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:39,839 INFO L225 Difference]: With dead ends: 10717 [2021-06-05 03:42:39,840 INFO L226 Difference]: Without dead ends: 10302 [2021-06-05 03:42:39,840 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 131.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:40,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10302 states. [2021-06-05 03:42:40,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10302 to 5191. [2021-06-05 03:42:40,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.740847784200385) internal successors, (24605), 5190 states have internal predecessors, (24605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:40,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24605 transitions. [2021-06-05 03:42:40,099 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24605 transitions. Word has length 29 [2021-06-05 03:42:40,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:40,100 INFO L482 AbstractCegarLoop]: Abstraction has 5191 states and 24605 transitions. [2021-06-05 03:42:40,100 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:40,100 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24605 transitions. [2021-06-05 03:42:40,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:40,108 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:40,108 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:40,108 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable451 [2021-06-05 03:42:40,108 INFO L430 AbstractCegarLoop]: === Iteration 453 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:40,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:40,109 INFO L82 PathProgramCache]: Analyzing trace with hash 112411979, now seen corresponding path program 448 times [2021-06-05 03:42:40,109 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:40,109 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481933476] [2021-06-05 03:42:40,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:40,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:40,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:40,225 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:40,225 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481933476] [2021-06-05 03:42:40,225 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481933476] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:40,225 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:40,225 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:40,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445793519] [2021-06-05 03:42:40,225 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:40,225 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:40,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:40,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:40,226 INFO L87 Difference]: Start difference. First operand 5191 states and 24605 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:40,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:40,355 INFO L93 Difference]: Finished difference Result 10773 states and 48189 transitions. [2021-06-05 03:42:40,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:40,356 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:40,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:40,381 INFO L225 Difference]: With dead ends: 10773 [2021-06-05 03:42:40,382 INFO L226 Difference]: Without dead ends: 10254 [2021-06-05 03:42:40,382 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 140.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:40,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10254 states. [2021-06-05 03:42:40,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10254 to 5143. [2021-06-05 03:42:40,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.746207701283547) internal successors, (24405), 5142 states have internal predecessors, (24405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:40,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24405 transitions. [2021-06-05 03:42:40,599 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24405 transitions. Word has length 29 [2021-06-05 03:42:40,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:40,599 INFO L482 AbstractCegarLoop]: Abstraction has 5143 states and 24405 transitions. [2021-06-05 03:42:40,599 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:40,599 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24405 transitions. [2021-06-05 03:42:40,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:40,607 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:40,607 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:40,607 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable452 [2021-06-05 03:42:40,607 INFO L430 AbstractCegarLoop]: === Iteration 454 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:40,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:40,607 INFO L82 PathProgramCache]: Analyzing trace with hash 1020012683, now seen corresponding path program 449 times [2021-06-05 03:42:40,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:40,608 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812655637] [2021-06-05 03:42:40,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:40,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:40,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:40,708 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:40,708 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812655637] [2021-06-05 03:42:40,708 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812655637] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:40,708 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:40,708 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:40,708 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215299370] [2021-06-05 03:42:40,708 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:40,708 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:40,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:40,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:40,709 INFO L87 Difference]: Start difference. First operand 5143 states and 24405 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:40,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:40,816 INFO L93 Difference]: Finished difference Result 10865 states and 48629 transitions. [2021-06-05 03:42:40,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:40,816 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:40,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:40,841 INFO L225 Difference]: With dead ends: 10865 [2021-06-05 03:42:40,841 INFO L226 Difference]: Without dead ends: 10390 [2021-06-05 03:42:40,842 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 125.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:40,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10390 states. [2021-06-05 03:42:41,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10390 to 5219. [2021-06-05 03:42:41,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5219 states, 5218 states have (on average 4.7322729014948255) internal successors, (24693), 5218 states have internal predecessors, (24693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:41,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5219 states to 5219 states and 24693 transitions. [2021-06-05 03:42:41,062 INFO L78 Accepts]: Start accepts. Automaton has 5219 states and 24693 transitions. Word has length 29 [2021-06-05 03:42:41,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:41,062 INFO L482 AbstractCegarLoop]: Abstraction has 5219 states and 24693 transitions. [2021-06-05 03:42:41,062 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:41,062 INFO L276 IsEmpty]: Start isEmpty. Operand 5219 states and 24693 transitions. [2021-06-05 03:42:41,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:41,071 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:41,071 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:41,071 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable453 [2021-06-05 03:42:41,071 INFO L430 AbstractCegarLoop]: === Iteration 455 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:41,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:41,071 INFO L82 PathProgramCache]: Analyzing trace with hash -1023324311, now seen corresponding path program 450 times [2021-06-05 03:42:41,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:41,071 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684502360] [2021-06-05 03:42:41,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:41,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:41,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:41,172 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:41,172 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684502360] [2021-06-05 03:42:41,172 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684502360] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:41,172 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:41,172 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:41,172 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905212227] [2021-06-05 03:42:41,172 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:41,173 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:41,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:41,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:41,173 INFO L87 Difference]: Start difference. First operand 5219 states and 24693 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:41,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:41,284 INFO L93 Difference]: Finished difference Result 10861 states and 48541 transitions. [2021-06-05 03:42:41,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:41,284 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:41,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:41,310 INFO L225 Difference]: With dead ends: 10861 [2021-06-05 03:42:41,310 INFO L226 Difference]: Without dead ends: 10290 [2021-06-05 03:42:41,310 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 125.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:41,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10290 states. [2021-06-05 03:42:41,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10290 to 5119. [2021-06-05 03:42:41,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5119 states, 5118 states have (on average 4.7520515826494725) internal successors, (24321), 5118 states have internal predecessors, (24321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:41,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5119 states to 5119 states and 24321 transitions. [2021-06-05 03:42:41,530 INFO L78 Accepts]: Start accepts. Automaton has 5119 states and 24321 transitions. Word has length 29 [2021-06-05 03:42:41,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:41,530 INFO L482 AbstractCegarLoop]: Abstraction has 5119 states and 24321 transitions. [2021-06-05 03:42:41,530 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:41,530 INFO L276 IsEmpty]: Start isEmpty. Operand 5119 states and 24321 transitions. [2021-06-05 03:42:41,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:41,539 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:41,539 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:41,539 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable454 [2021-06-05 03:42:41,539 INFO L430 AbstractCegarLoop]: === Iteration 456 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:41,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:41,539 INFO L82 PathProgramCache]: Analyzing trace with hash -119839195, now seen corresponding path program 451 times [2021-06-05 03:42:41,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:41,539 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428164776] [2021-06-05 03:42:41,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:41,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:41,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:41,661 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:41,662 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428164776] [2021-06-05 03:42:41,662 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428164776] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:41,662 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:41,662 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:41,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071578956] [2021-06-05 03:42:41,662 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:41,662 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:41,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:41,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:41,662 INFO L87 Difference]: Start difference. First operand 5119 states and 24321 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:41,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:41,754 INFO L93 Difference]: Finished difference Result 10721 states and 48013 transitions. [2021-06-05 03:42:41,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:41,755 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:41,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:41,780 INFO L225 Difference]: With dead ends: 10721 [2021-06-05 03:42:41,780 INFO L226 Difference]: Without dead ends: 10306 [2021-06-05 03:42:41,780 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 129.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:41,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10306 states. [2021-06-05 03:42:41,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10306 to 5191. [2021-06-05 03:42:41,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.74393063583815) internal successors, (24621), 5190 states have internal predecessors, (24621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:41,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24621 transitions. [2021-06-05 03:42:41,996 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24621 transitions. Word has length 29 [2021-06-05 03:42:41,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:41,996 INFO L482 AbstractCegarLoop]: Abstraction has 5191 states and 24621 transitions. [2021-06-05 03:42:41,996 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:41,996 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24621 transitions. [2021-06-05 03:42:42,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:42,004 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:42,004 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:42,004 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable455 [2021-06-05 03:42:42,004 INFO L430 AbstractCegarLoop]: === Iteration 457 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:42,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:42,005 INFO L82 PathProgramCache]: Analyzing trace with hash 961223431, now seen corresponding path program 452 times [2021-06-05 03:42:42,005 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:42,005 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90993411] [2021-06-05 03:42:42,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:42,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:42,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:42,148 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:42,148 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90993411] [2021-06-05 03:42:42,148 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90993411] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:42,148 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:42,149 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:42,149 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755180219] [2021-06-05 03:42:42,149 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:42,149 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:42,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:42,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:42,149 INFO L87 Difference]: Start difference. First operand 5191 states and 24621 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:42,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:42,288 INFO L93 Difference]: Finished difference Result 10781 states and 48229 transitions. [2021-06-05 03:42:42,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:42,288 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:42,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:42,320 INFO L225 Difference]: With dead ends: 10781 [2021-06-05 03:42:42,320 INFO L226 Difference]: Without dead ends: 10258 [2021-06-05 03:42:42,320 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 170.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:42,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10258 states. [2021-06-05 03:42:42,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10258 to 5143. [2021-06-05 03:42:42,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.749319330999611) internal successors, (24421), 5142 states have internal predecessors, (24421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:42,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24421 transitions. [2021-06-05 03:42:42,576 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24421 transitions. Word has length 29 [2021-06-05 03:42:42,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:42,576 INFO L482 AbstractCegarLoop]: Abstraction has 5143 states and 24421 transitions. [2021-06-05 03:42:42,577 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:42,577 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24421 transitions. [2021-06-05 03:42:42,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:42,585 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:42,585 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:42,585 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable456 [2021-06-05 03:42:42,585 INFO L430 AbstractCegarLoop]: === Iteration 458 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:42,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:42,585 INFO L82 PathProgramCache]: Analyzing trace with hash -600741241, now seen corresponding path program 453 times [2021-06-05 03:42:42,585 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:42,586 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402120085] [2021-06-05 03:42:42,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:42,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:42,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:42,711 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:42,711 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402120085] [2021-06-05 03:42:42,711 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402120085] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:42,711 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:42,711 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:42,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309078531] [2021-06-05 03:42:42,712 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:42,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:42,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:42,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:42,712 INFO L87 Difference]: Start difference. First operand 5143 states and 24421 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:42,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:42,809 INFO L93 Difference]: Finished difference Result 10717 states and 47977 transitions. [2021-06-05 03:42:42,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:42,809 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:42,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:42,834 INFO L225 Difference]: With dead ends: 10717 [2021-06-05 03:42:42,834 INFO L226 Difference]: Without dead ends: 10302 [2021-06-05 03:42:42,835 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 132.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:42,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10302 states. [2021-06-05 03:42:43,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10302 to 5191. [2021-06-05 03:42:43,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.739306358381503) internal successors, (24597), 5190 states have internal predecessors, (24597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:43,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24597 transitions. [2021-06-05 03:42:43,055 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24597 transitions. Word has length 29 [2021-06-05 03:42:43,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:43,055 INFO L482 AbstractCegarLoop]: Abstraction has 5191 states and 24597 transitions. [2021-06-05 03:42:43,055 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:43,055 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24597 transitions. [2021-06-05 03:42:43,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:43,064 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:43,064 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:43,064 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable457 [2021-06-05 03:42:43,064 INFO L430 AbstractCegarLoop]: === Iteration 459 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:43,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:43,064 INFO L82 PathProgramCache]: Analyzing trace with hash 2005979783, now seen corresponding path program 454 times [2021-06-05 03:42:43,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:43,064 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256458378] [2021-06-05 03:42:43,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:43,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:43,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:43,188 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:43,188 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256458378] [2021-06-05 03:42:43,188 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256458378] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:43,188 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:43,188 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:43,188 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051305565] [2021-06-05 03:42:43,188 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:43,188 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:43,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:43,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:43,189 INFO L87 Difference]: Start difference. First operand 5191 states and 24597 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:43,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:43,302 INFO L93 Difference]: Finished difference Result 10773 states and 48181 transitions. [2021-06-05 03:42:43,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:43,302 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:43,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:43,327 INFO L225 Difference]: With dead ends: 10773 [2021-06-05 03:42:43,328 INFO L226 Difference]: Without dead ends: 10254 [2021-06-05 03:42:43,328 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 148.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:43,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10254 states. [2021-06-05 03:42:43,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10254 to 5143. [2021-06-05 03:42:43,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.744651886425515) internal successors, (24397), 5142 states have internal predecessors, (24397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:43,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24397 transitions. [2021-06-05 03:42:43,546 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24397 transitions. Word has length 29 [2021-06-05 03:42:43,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:43,546 INFO L482 AbstractCegarLoop]: Abstraction has 5143 states and 24397 transitions. [2021-06-05 03:42:43,546 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:43,546 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24397 transitions. [2021-06-05 03:42:43,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:43,554 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:43,554 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:43,554 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable458 [2021-06-05 03:42:43,554 INFO L430 AbstractCegarLoop]: === Iteration 460 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:43,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:43,555 INFO L82 PathProgramCache]: Analyzing trace with hash -212736279, now seen corresponding path program 455 times [2021-06-05 03:42:43,555 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:43,555 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756669553] [2021-06-05 03:42:43,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:43,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:43,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:43,667 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:43,667 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756669553] [2021-06-05 03:42:43,667 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756669553] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:43,667 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:43,667 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:43,667 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229646259] [2021-06-05 03:42:43,667 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:43,667 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:43,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:43,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:43,667 INFO L87 Difference]: Start difference. First operand 5143 states and 24397 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:43,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:43,776 INFO L93 Difference]: Finished difference Result 10865 states and 48621 transitions. [2021-06-05 03:42:43,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:43,777 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:43,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:43,802 INFO L225 Difference]: With dead ends: 10865 [2021-06-05 03:42:43,802 INFO L226 Difference]: Without dead ends: 10390 [2021-06-05 03:42:43,803 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 136.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:43,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10390 states. [2021-06-05 03:42:44,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10390 to 5219. [2021-06-05 03:42:44,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5219 states, 5218 states have (on average 4.730739747029514) internal successors, (24685), 5218 states have internal predecessors, (24685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:44,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5219 states to 5219 states and 24685 transitions. [2021-06-05 03:42:44,024 INFO L78 Accepts]: Start accepts. Automaton has 5219 states and 24685 transitions. Word has length 29 [2021-06-05 03:42:44,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:44,024 INFO L482 AbstractCegarLoop]: Abstraction has 5219 states and 24685 transitions. [2021-06-05 03:42:44,025 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:44,025 INFO L276 IsEmpty]: Start isEmpty. Operand 5219 states and 24685 transitions. [2021-06-05 03:42:44,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:44,033 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:44,033 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:44,033 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable459 [2021-06-05 03:42:44,033 INFO L430 AbstractCegarLoop]: === Iteration 461 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:44,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:44,034 INFO L82 PathProgramCache]: Analyzing trace with hash -1059533241, now seen corresponding path program 456 times [2021-06-05 03:42:44,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:44,034 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446674504] [2021-06-05 03:42:44,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:44,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:44,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:44,147 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:44,147 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446674504] [2021-06-05 03:42:44,147 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446674504] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:44,147 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:44,147 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:44,147 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868330284] [2021-06-05 03:42:44,147 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:44,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:44,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:44,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:44,147 INFO L87 Difference]: Start difference. First operand 5219 states and 24685 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:44,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:44,261 INFO L93 Difference]: Finished difference Result 10861 states and 48533 transitions. [2021-06-05 03:42:44,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:44,261 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:44,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:44,286 INFO L225 Difference]: With dead ends: 10861 [2021-06-05 03:42:44,286 INFO L226 Difference]: Without dead ends: 10282 [2021-06-05 03:42:44,287 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 137.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:44,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10282 states. [2021-06-05 03:42:44,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10282 to 5111. [2021-06-05 03:42:44,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5111 states, 5110 states have (on average 4.754794520547946) internal successors, (24297), 5110 states have internal predecessors, (24297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:44,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5111 states to 5111 states and 24297 transitions. [2021-06-05 03:42:44,508 INFO L78 Accepts]: Start accepts. Automaton has 5111 states and 24297 transitions. Word has length 29 [2021-06-05 03:42:44,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:44,508 INFO L482 AbstractCegarLoop]: Abstraction has 5111 states and 24297 transitions. [2021-06-05 03:42:44,508 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:44,508 INFO L276 IsEmpty]: Start isEmpty. Operand 5111 states and 24297 transitions. [2021-06-05 03:42:44,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:44,516 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:44,517 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:44,517 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable460 [2021-06-05 03:42:44,517 INFO L430 AbstractCegarLoop]: === Iteration 462 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:44,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:44,517 INFO L82 PathProgramCache]: Analyzing trace with hash -596008189, now seen corresponding path program 457 times [2021-06-05 03:42:44,517 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:44,517 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717143695] [2021-06-05 03:42:44,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:44,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:44,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:44,643 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:44,643 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717143695] [2021-06-05 03:42:44,643 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717143695] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:44,643 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:44,643 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:44,643 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053487316] [2021-06-05 03:42:44,643 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:44,643 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:44,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:44,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:44,644 INFO L87 Difference]: Start difference. First operand 5111 states and 24297 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:44,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:44,738 INFO L93 Difference]: Finished difference Result 11487 states and 51416 transitions. [2021-06-05 03:42:44,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:44,739 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:44,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:44,766 INFO L225 Difference]: With dead ends: 11487 [2021-06-05 03:42:44,766 INFO L226 Difference]: Without dead ends: 10945 [2021-06-05 03:42:44,766 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 133.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:44,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10945 states. [2021-06-05 03:42:44,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10945 to 5251. [2021-06-05 03:42:44,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5251 states, 5250 states have (on average 4.743047619047619) internal successors, (24901), 5250 states have internal predecessors, (24901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:44,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5251 states to 5251 states and 24901 transitions. [2021-06-05 03:42:44,994 INFO L78 Accepts]: Start accepts. Automaton has 5251 states and 24901 transitions. Word has length 29 [2021-06-05 03:42:44,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:44,994 INFO L482 AbstractCegarLoop]: Abstraction has 5251 states and 24901 transitions. [2021-06-05 03:42:44,994 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:44,995 INFO L276 IsEmpty]: Start isEmpty. Operand 5251 states and 24901 transitions. [2021-06-05 03:42:45,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:45,004 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:45,004 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:45,004 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable461 [2021-06-05 03:42:45,004 INFO L430 AbstractCegarLoop]: === Iteration 463 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:45,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:45,004 INFO L82 PathProgramCache]: Analyzing trace with hash -802816155, now seen corresponding path program 458 times [2021-06-05 03:42:45,004 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:45,005 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41180433] [2021-06-05 03:42:45,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:45,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:45,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:45,130 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:45,130 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41180433] [2021-06-05 03:42:45,130 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41180433] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:45,130 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:45,130 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:45,130 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082843248] [2021-06-05 03:42:45,130 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:45,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:45,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:45,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:45,131 INFO L87 Difference]: Start difference. First operand 5251 states and 24901 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:45,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:45,229 INFO L93 Difference]: Finished difference Result 11360 states and 50809 transitions. [2021-06-05 03:42:45,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:45,229 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:45,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:45,256 INFO L225 Difference]: With dead ends: 11360 [2021-06-05 03:42:45,256 INFO L226 Difference]: Without dead ends: 10865 [2021-06-05 03:42:45,256 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 132.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:45,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10865 states. [2021-06-05 03:42:45,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10865 to 5171. [2021-06-05 03:42:45,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5171 states, 5170 states have (on average 4.752998065764023) internal successors, (24573), 5170 states have internal predecessors, (24573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:45,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5171 states to 5171 states and 24573 transitions. [2021-06-05 03:42:45,481 INFO L78 Accepts]: Start accepts. Automaton has 5171 states and 24573 transitions. Word has length 29 [2021-06-05 03:42:45,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:45,481 INFO L482 AbstractCegarLoop]: Abstraction has 5171 states and 24573 transitions. [2021-06-05 03:42:45,481 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:45,481 INFO L276 IsEmpty]: Start isEmpty. Operand 5171 states and 24573 transitions. [2021-06-05 03:42:45,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:45,489 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:45,489 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:45,489 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable462 [2021-06-05 03:42:45,490 INFO L430 AbstractCegarLoop]: === Iteration 464 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:45,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:45,490 INFO L82 PathProgramCache]: Analyzing trace with hash -1076910235, now seen corresponding path program 459 times [2021-06-05 03:42:45,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:45,490 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42307182] [2021-06-05 03:42:45,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:45,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:45,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:45,607 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:45,607 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42307182] [2021-06-05 03:42:45,608 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42307182] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:45,608 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:45,608 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:45,608 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871330490] [2021-06-05 03:42:45,608 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:45,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:45,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:45,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:45,608 INFO L87 Difference]: Start difference. First operand 5171 states and 24573 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:45,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:45,715 INFO L93 Difference]: Finished difference Result 11577 states and 51787 transitions. [2021-06-05 03:42:45,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:45,715 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:45,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:45,742 INFO L225 Difference]: With dead ends: 11577 [2021-06-05 03:42:45,742 INFO L226 Difference]: Without dead ends: 11035 [2021-06-05 03:42:45,742 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 125.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:45,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11035 states. [2021-06-05 03:42:45,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11035 to 5281. [2021-06-05 03:42:45,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5281 states, 5280 states have (on average 4.730681818181818) internal successors, (24978), 5280 states have internal predecessors, (24978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:45,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5281 states to 5281 states and 24978 transitions. [2021-06-05 03:42:45,968 INFO L78 Accepts]: Start accepts. Automaton has 5281 states and 24978 transitions. Word has length 29 [2021-06-05 03:42:45,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:45,968 INFO L482 AbstractCegarLoop]: Abstraction has 5281 states and 24978 transitions. [2021-06-05 03:42:45,968 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:45,968 INFO L276 IsEmpty]: Start isEmpty. Operand 5281 states and 24978 transitions. [2021-06-05 03:42:45,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:45,977 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:45,977 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:45,977 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable463 [2021-06-05 03:42:45,977 INFO L430 AbstractCegarLoop]: === Iteration 465 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:45,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:45,977 INFO L82 PathProgramCache]: Analyzing trace with hash 241940197, now seen corresponding path program 460 times [2021-06-05 03:42:45,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:45,977 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129621564] [2021-06-05 03:42:45,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:45,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:46,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:46,096 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:46,096 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129621564] [2021-06-05 03:42:46,096 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129621564] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:46,096 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:46,096 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:46,096 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769032550] [2021-06-05 03:42:46,096 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:46,096 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:46,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:46,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:46,097 INFO L87 Difference]: Start difference. First operand 5281 states and 24978 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:46,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:46,212 INFO L93 Difference]: Finished difference Result 11510 states and 51414 transitions. [2021-06-05 03:42:46,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:46,212 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:46,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:46,239 INFO L225 Difference]: With dead ends: 11510 [2021-06-05 03:42:46,239 INFO L226 Difference]: Without dead ends: 10925 [2021-06-05 03:42:46,239 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 143.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:46,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10925 states. [2021-06-05 03:42:46,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10925 to 5171. [2021-06-05 03:42:46,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5171 states, 5170 states have (on average 4.745261121856866) internal successors, (24533), 5170 states have internal predecessors, (24533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:46,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5171 states to 5171 states and 24533 transitions. [2021-06-05 03:42:46,473 INFO L78 Accepts]: Start accepts. Automaton has 5171 states and 24533 transitions. Word has length 29 [2021-06-05 03:42:46,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:46,473 INFO L482 AbstractCegarLoop]: Abstraction has 5171 states and 24533 transitions. [2021-06-05 03:42:46,473 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:46,473 INFO L276 IsEmpty]: Start isEmpty. Operand 5171 states and 24533 transitions. [2021-06-05 03:42:46,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:46,482 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:46,482 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:46,482 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable464 [2021-06-05 03:42:46,482 INFO L430 AbstractCegarLoop]: === Iteration 466 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:46,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:46,482 INFO L82 PathProgramCache]: Analyzing trace with hash 1625133767, now seen corresponding path program 461 times [2021-06-05 03:42:46,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:46,482 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964442133] [2021-06-05 03:42:46,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:46,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:46,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:46,611 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:46,611 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964442133] [2021-06-05 03:42:46,611 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964442133] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:46,611 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:46,611 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:46,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127358975] [2021-06-05 03:42:46,611 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:46,612 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:46,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:46,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:46,612 INFO L87 Difference]: Start difference. First operand 5171 states and 24533 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:46,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:46,710 INFO L93 Difference]: Finished difference Result 11261 states and 50402 transitions. [2021-06-05 03:42:46,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:46,710 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:46,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:46,738 INFO L225 Difference]: With dead ends: 11261 [2021-06-05 03:42:46,738 INFO L226 Difference]: Without dead ends: 10846 [2021-06-05 03:42:46,739 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 136.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:46,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10846 states. [2021-06-05 03:42:46,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10846 to 5219. [2021-06-05 03:42:46,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5219 states, 5218 states have (on average 4.73533921042545) internal successors, (24709), 5218 states have internal predecessors, (24709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:46,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5219 states to 5219 states and 24709 transitions. [2021-06-05 03:42:46,965 INFO L78 Accepts]: Start accepts. Automaton has 5219 states and 24709 transitions. Word has length 29 [2021-06-05 03:42:46,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:46,965 INFO L482 AbstractCegarLoop]: Abstraction has 5219 states and 24709 transitions. [2021-06-05 03:42:46,965 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:46,965 INFO L276 IsEmpty]: Start isEmpty. Operand 5219 states and 24709 transitions. [2021-06-05 03:42:46,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:46,974 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:46,974 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:46,974 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable465 [2021-06-05 03:42:46,974 INFO L430 AbstractCegarLoop]: === Iteration 467 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:46,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:46,975 INFO L82 PathProgramCache]: Analyzing trace with hash 778336805, now seen corresponding path program 462 times [2021-06-05 03:42:46,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:46,975 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895719625] [2021-06-05 03:42:46,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:46,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:47,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:47,104 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:47,104 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895719625] [2021-06-05 03:42:47,104 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895719625] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:47,104 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:47,104 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:47,104 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574457594] [2021-06-05 03:42:47,104 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:47,104 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:47,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:47,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:47,104 INFO L87 Difference]: Start difference. First operand 5219 states and 24709 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:47,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:47,214 INFO L93 Difference]: Finished difference Result 11321 states and 50618 transitions. [2021-06-05 03:42:47,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:47,215 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:47,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:47,241 INFO L225 Difference]: With dead ends: 11321 [2021-06-05 03:42:47,241 INFO L226 Difference]: Without dead ends: 10758 [2021-06-05 03:42:47,241 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 153.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:47,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10758 states. [2021-06-05 03:42:47,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10758 to 5131. [2021-06-05 03:42:47,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.754191033138402) internal successors, (24389), 5130 states have internal predecessors, (24389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:47,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24389 transitions. [2021-06-05 03:42:47,464 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24389 transitions. Word has length 29 [2021-06-05 03:42:47,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:47,464 INFO L482 AbstractCegarLoop]: Abstraction has 5131 states and 24389 transitions. [2021-06-05 03:42:47,464 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:47,464 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24389 transitions. [2021-06-05 03:42:47,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:47,472 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:47,472 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:47,472 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable466 [2021-06-05 03:42:47,472 INFO L430 AbstractCegarLoop]: === Iteration 468 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:47,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:47,473 INFO L82 PathProgramCache]: Analyzing trace with hash 1113593573, now seen corresponding path program 463 times [2021-06-05 03:42:47,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:47,473 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212285921] [2021-06-05 03:42:47,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:47,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:47,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:47,600 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:47,600 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212285921] [2021-06-05 03:42:47,600 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212285921] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:47,600 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:47,600 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:47,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869736792] [2021-06-05 03:42:47,600 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:47,600 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:47,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:47,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:47,601 INFO L87 Difference]: Start difference. First operand 5131 states and 24389 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:47,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:47,698 INFO L93 Difference]: Finished difference Result 11481 states and 51377 transitions. [2021-06-05 03:42:47,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:47,699 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:47,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:47,726 INFO L225 Difference]: With dead ends: 11481 [2021-06-05 03:42:47,726 INFO L226 Difference]: Without dead ends: 10939 [2021-06-05 03:42:47,726 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 134.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:47,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10939 states. [2021-06-05 03:42:47,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10939 to 5251. [2021-06-05 03:42:47,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5251 states, 5250 states have (on average 4.739238095238095) internal successors, (24881), 5250 states have internal predecessors, (24881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:47,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5251 states to 5251 states and 24881 transitions. [2021-06-05 03:42:47,955 INFO L78 Accepts]: Start accepts. Automaton has 5251 states and 24881 transitions. Word has length 29 [2021-06-05 03:42:47,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:47,955 INFO L482 AbstractCegarLoop]: Abstraction has 5251 states and 24881 transitions. [2021-06-05 03:42:47,956 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:47,956 INFO L276 IsEmpty]: Start isEmpty. Operand 5251 states and 24881 transitions. [2021-06-05 03:42:47,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:47,964 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:47,964 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:47,964 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable467 [2021-06-05 03:42:47,964 INFO L430 AbstractCegarLoop]: === Iteration 469 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:47,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:47,965 INFO L82 PathProgramCache]: Analyzing trace with hash 906785607, now seen corresponding path program 464 times [2021-06-05 03:42:47,965 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:47,965 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966108748] [2021-06-05 03:42:47,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:47,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:48,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:48,095 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:48,095 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966108748] [2021-06-05 03:42:48,095 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966108748] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:48,095 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:48,095 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:48,095 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443079088] [2021-06-05 03:42:48,095 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:48,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:48,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:48,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:48,096 INFO L87 Difference]: Start difference. First operand 5251 states and 24881 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:48,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:48,195 INFO L93 Difference]: Finished difference Result 11354 states and 50770 transitions. [2021-06-05 03:42:48,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:48,195 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:48,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:48,223 INFO L225 Difference]: With dead ends: 11354 [2021-06-05 03:42:48,223 INFO L226 Difference]: Without dead ends: 10859 [2021-06-05 03:42:48,223 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 137.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:48,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10859 states. [2021-06-05 03:42:48,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10859 to 5171. [2021-06-05 03:42:48,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5171 states, 5170 states have (on average 4.749129593810445) internal successors, (24553), 5170 states have internal predecessors, (24553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:48,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5171 states to 5171 states and 24553 transitions. [2021-06-05 03:42:48,447 INFO L78 Accepts]: Start accepts. Automaton has 5171 states and 24553 transitions. Word has length 29 [2021-06-05 03:42:48,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:48,447 INFO L482 AbstractCegarLoop]: Abstraction has 5171 states and 24553 transitions. [2021-06-05 03:42:48,447 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:48,447 INFO L276 IsEmpty]: Start isEmpty. Operand 5171 states and 24553 transitions. [2021-06-05 03:42:48,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:48,456 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:48,456 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:48,456 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable468 [2021-06-05 03:42:48,456 INFO L430 AbstractCegarLoop]: === Iteration 470 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:48,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:48,456 INFO L82 PathProgramCache]: Analyzing trace with hash -2088403227, now seen corresponding path program 465 times [2021-06-05 03:42:48,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:48,456 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830931485] [2021-06-05 03:42:48,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:48,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:48,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:48,589 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:48,589 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830931485] [2021-06-05 03:42:48,589 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830931485] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:48,590 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:48,590 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:48,590 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777113757] [2021-06-05 03:42:48,590 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:48,590 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:48,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:48,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:48,590 INFO L87 Difference]: Start difference. First operand 5171 states and 24553 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:48,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:48,685 INFO L93 Difference]: Finished difference Result 11565 states and 51729 transitions. [2021-06-05 03:42:48,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:48,685 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:48,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:48,713 INFO L225 Difference]: With dead ends: 11565 [2021-06-05 03:42:48,713 INFO L226 Difference]: Without dead ends: 11023 [2021-06-05 03:42:48,713 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 140.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:48,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11023 states. [2021-06-05 03:42:48,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11023 to 5279. [2021-06-05 03:42:48,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5279 states, 5278 states have (on average 4.7277377794619175) internal successors, (24953), 5278 states have internal predecessors, (24953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:48,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5279 states to 5279 states and 24953 transitions. [2021-06-05 03:42:48,943 INFO L78 Accepts]: Start accepts. Automaton has 5279 states and 24953 transitions. Word has length 29 [2021-06-05 03:42:48,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:48,943 INFO L482 AbstractCegarLoop]: Abstraction has 5279 states and 24953 transitions. [2021-06-05 03:42:48,943 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:48,943 INFO L276 IsEmpty]: Start isEmpty. Operand 5279 states and 24953 transitions. [2021-06-05 03:42:48,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:48,952 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:48,952 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:48,952 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable469 [2021-06-05 03:42:48,952 INFO L430 AbstractCegarLoop]: === Iteration 471 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:48,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:48,953 INFO L82 PathProgramCache]: Analyzing trace with hash 968261221, now seen corresponding path program 466 times [2021-06-05 03:42:48,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:48,953 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856273941] [2021-06-05 03:42:48,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:48,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:49,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:49,085 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:49,085 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856273941] [2021-06-05 03:42:49,085 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856273941] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:49,085 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:49,085 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:49,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508300382] [2021-06-05 03:42:49,085 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:49,085 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:49,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:49,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:49,086 INFO L87 Difference]: Start difference. First operand 5279 states and 24953 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:49,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:49,251 INFO L93 Difference]: Finished difference Result 11494 states and 51346 transitions. [2021-06-05 03:42:49,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:49,251 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:49,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:49,279 INFO L225 Difference]: With dead ends: 11494 [2021-06-05 03:42:49,279 INFO L226 Difference]: Without dead ends: 10915 [2021-06-05 03:42:49,279 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 156.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:49,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10915 states. [2021-06-05 03:42:49,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10915 to 5171. [2021-06-05 03:42:49,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5171 states, 5170 states have (on average 4.741392649903288) internal successors, (24513), 5170 states have internal predecessors, (24513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:49,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5171 states to 5171 states and 24513 transitions. [2021-06-05 03:42:49,498 INFO L78 Accepts]: Start accepts. Automaton has 5171 states and 24513 transitions. Word has length 29 [2021-06-05 03:42:49,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:49,498 INFO L482 AbstractCegarLoop]: Abstraction has 5171 states and 24513 transitions. [2021-06-05 03:42:49,498 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:49,498 INFO L276 IsEmpty]: Start isEmpty. Operand 5171 states and 24513 transitions. [2021-06-05 03:42:49,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:49,507 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:49,507 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:49,507 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable470 [2021-06-05 03:42:49,507 INFO L430 AbstractCegarLoop]: === Iteration 472 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:49,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:49,507 INFO L82 PathProgramCache]: Analyzing trace with hash 613640775, now seen corresponding path program 467 times [2021-06-05 03:42:49,507 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:49,507 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884423181] [2021-06-05 03:42:49,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:49,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:49,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:49,639 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:49,639 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884423181] [2021-06-05 03:42:49,639 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884423181] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:49,639 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:49,639 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:49,639 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098983689] [2021-06-05 03:42:49,639 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:49,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:49,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:49,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:49,640 INFO L87 Difference]: Start difference. First operand 5171 states and 24513 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:49,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:49,738 INFO L93 Difference]: Finished difference Result 11251 states and 50351 transitions. [2021-06-05 03:42:49,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:49,738 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:49,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:49,765 INFO L225 Difference]: With dead ends: 11251 [2021-06-05 03:42:49,765 INFO L226 Difference]: Without dead ends: 10836 [2021-06-05 03:42:49,765 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 138.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:49,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10836 states. [2021-06-05 03:42:49,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10836 to 5219. [2021-06-05 03:42:49,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5219 states, 5218 states have (on average 4.7315063242621695) internal successors, (24689), 5218 states have internal predecessors, (24689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:49,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5219 states to 5219 states and 24689 transitions. [2021-06-05 03:42:49,987 INFO L78 Accepts]: Start accepts. Automaton has 5219 states and 24689 transitions. Word has length 29 [2021-06-05 03:42:49,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:49,987 INFO L482 AbstractCegarLoop]: Abstraction has 5219 states and 24689 transitions. [2021-06-05 03:42:49,987 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:49,987 INFO L276 IsEmpty]: Start isEmpty. Operand 5219 states and 24689 transitions. [2021-06-05 03:42:49,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:49,995 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:49,995 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:49,996 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable471 [2021-06-05 03:42:49,996 INFO L430 AbstractCegarLoop]: === Iteration 473 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:49,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:49,996 INFO L82 PathProgramCache]: Analyzing trace with hash -1502438875, now seen corresponding path program 468 times [2021-06-05 03:42:49,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:49,996 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776182414] [2021-06-05 03:42:49,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:49,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:50,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:50,127 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:50,127 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776182414] [2021-06-05 03:42:50,127 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776182414] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:50,127 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:50,127 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:50,127 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461526298] [2021-06-05 03:42:50,127 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:50,127 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:50,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:50,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:50,128 INFO L87 Difference]: Start difference. First operand 5219 states and 24689 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:50,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:50,238 INFO L93 Difference]: Finished difference Result 11307 states and 50555 transitions. [2021-06-05 03:42:50,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:50,238 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:50,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:50,264 INFO L225 Difference]: With dead ends: 11307 [2021-06-05 03:42:50,265 INFO L226 Difference]: Without dead ends: 10748 [2021-06-05 03:42:50,265 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 154.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:50,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10748 states. [2021-06-05 03:42:50,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10748 to 5131. [2021-06-05 03:42:50,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.750292397660819) internal successors, (24369), 5130 states have internal predecessors, (24369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:50,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24369 transitions. [2021-06-05 03:42:50,495 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24369 transitions. Word has length 29 [2021-06-05 03:42:50,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:50,496 INFO L482 AbstractCegarLoop]: Abstraction has 5131 states and 24369 transitions. [2021-06-05 03:42:50,496 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:50,496 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24369 transitions. [2021-06-05 03:42:50,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:50,504 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:50,504 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:50,504 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable472 [2021-06-05 03:42:50,504 INFO L430 AbstractCegarLoop]: === Iteration 474 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:50,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:50,505 INFO L82 PathProgramCache]: Analyzing trace with hash 324207303, now seen corresponding path program 469 times [2021-06-05 03:42:50,505 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:50,505 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352490479] [2021-06-05 03:42:50,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:50,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:50,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:50,615 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:50,615 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352490479] [2021-06-05 03:42:50,615 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352490479] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:50,615 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:50,615 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:50,615 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067112519] [2021-06-05 03:42:50,615 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:50,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:50,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:50,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:50,615 INFO L87 Difference]: Start difference. First operand 5131 states and 24369 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:50,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:50,715 INFO L93 Difference]: Finished difference Result 11703 states and 52396 transitions. [2021-06-05 03:42:50,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:50,715 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:50,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:50,743 INFO L225 Difference]: With dead ends: 11703 [2021-06-05 03:42:50,743 INFO L226 Difference]: Without dead ends: 11161 [2021-06-05 03:42:50,743 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 117.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:50,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11161 states. [2021-06-05 03:42:50,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11161 to 5295. [2021-06-05 03:42:50,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5295 states, 5294 states have (on average 4.732716282584057) internal successors, (25055), 5294 states have internal predecessors, (25055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:50,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5295 states to 5295 states and 25055 transitions. [2021-06-05 03:42:50,971 INFO L78 Accepts]: Start accepts. Automaton has 5295 states and 25055 transitions. Word has length 29 [2021-06-05 03:42:50,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:50,971 INFO L482 AbstractCegarLoop]: Abstraction has 5295 states and 25055 transitions. [2021-06-05 03:42:50,971 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:50,971 INFO L276 IsEmpty]: Start isEmpty. Operand 5295 states and 25055 transitions. [2021-06-05 03:42:50,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:50,980 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:50,980 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:50,980 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable473 [2021-06-05 03:42:50,980 INFO L430 AbstractCegarLoop]: === Iteration 475 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:50,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:50,980 INFO L82 PathProgramCache]: Analyzing trace with hash 1643057735, now seen corresponding path program 470 times [2021-06-05 03:42:50,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:50,980 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899917779] [2021-06-05 03:42:50,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:50,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:51,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:51,089 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:51,089 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899917779] [2021-06-05 03:42:51,089 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899917779] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:51,089 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:51,089 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:51,089 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517510791] [2021-06-05 03:42:51,089 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:51,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:51,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:51,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:51,090 INFO L87 Difference]: Start difference. First operand 5295 states and 25055 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:51,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:51,217 INFO L93 Difference]: Finished difference Result 11636 states and 52023 transitions. [2021-06-05 03:42:51,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:51,218 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:51,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:51,245 INFO L225 Difference]: With dead ends: 11636 [2021-06-05 03:42:51,245 INFO L226 Difference]: Without dead ends: 11051 [2021-06-05 03:42:51,245 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 133.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:51,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11051 states. [2021-06-05 03:42:51,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11051 to 5185. [2021-06-05 03:42:51,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5185 states, 5184 states have (on average 4.744598765432099) internal successors, (24596), 5184 states have internal predecessors, (24596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:51,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5185 states to 5185 states and 24596 transitions. [2021-06-05 03:42:51,472 INFO L78 Accepts]: Start accepts. Automaton has 5185 states and 24596 transitions. Word has length 29 [2021-06-05 03:42:51,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:51,472 INFO L482 AbstractCegarLoop]: Abstraction has 5185 states and 24596 transitions. [2021-06-05 03:42:51,472 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:51,472 INFO L276 IsEmpty]: Start isEmpty. Operand 5185 states and 24596 transitions. [2021-06-05 03:42:51,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:51,480 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:51,480 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:51,480 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable474 [2021-06-05 03:42:51,480 INFO L430 AbstractCegarLoop]: === Iteration 476 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:51,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:51,481 INFO L82 PathProgramCache]: Analyzing trace with hash -1698854235, now seen corresponding path program 471 times [2021-06-05 03:42:51,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:51,481 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907742729] [2021-06-05 03:42:51,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:51,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:51,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:51,602 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:51,602 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907742729] [2021-06-05 03:42:51,602 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907742729] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:51,602 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:51,602 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:51,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745982410] [2021-06-05 03:42:51,602 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:51,602 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:51,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:51,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:51,602 INFO L87 Difference]: Start difference. First operand 5185 states and 24596 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:51,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:51,706 INFO L93 Difference]: Finished difference Result 11697 states and 52323 transitions. [2021-06-05 03:42:51,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:51,706 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:51,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:51,734 INFO L225 Difference]: With dead ends: 11697 [2021-06-05 03:42:51,734 INFO L226 Difference]: Without dead ends: 11155 [2021-06-05 03:42:51,734 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:51,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11155 states. [2021-06-05 03:42:51,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11155 to 5293. [2021-06-05 03:42:51,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5293 states, 5292 states have (on average 4.723356009070295) internal successors, (24996), 5292 states have internal predecessors, (24996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:51,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5293 states to 5293 states and 24996 transitions. [2021-06-05 03:42:51,964 INFO L78 Accepts]: Start accepts. Automaton has 5293 states and 24996 transitions. Word has length 29 [2021-06-05 03:42:51,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:51,964 INFO L482 AbstractCegarLoop]: Abstraction has 5293 states and 24996 transitions. [2021-06-05 03:42:51,964 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:51,964 INFO L276 IsEmpty]: Start isEmpty. Operand 5293 states and 24996 transitions. [2021-06-05 03:42:51,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:51,973 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:51,973 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:51,973 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable475 [2021-06-05 03:42:51,973 INFO L430 AbstractCegarLoop]: === Iteration 477 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:51,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:51,974 INFO L82 PathProgramCache]: Analyzing trace with hash -1617104313, now seen corresponding path program 472 times [2021-06-05 03:42:51,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:51,974 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589457359] [2021-06-05 03:42:51,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:51,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:52,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:52,095 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:52,095 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589457359] [2021-06-05 03:42:52,095 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589457359] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:52,095 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:52,095 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:52,095 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734657996] [2021-06-05 03:42:52,095 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:52,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:52,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:52,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:52,096 INFO L87 Difference]: Start difference. First operand 5293 states and 24996 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:52,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:52,225 INFO L93 Difference]: Finished difference Result 11626 states and 51940 transitions. [2021-06-05 03:42:52,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:52,226 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:52,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:52,252 INFO L225 Difference]: With dead ends: 11626 [2021-06-05 03:42:52,252 INFO L226 Difference]: Without dead ends: 11047 [2021-06-05 03:42:52,252 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 145.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:52,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11047 states. [2021-06-05 03:42:52,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11047 to 5185. [2021-06-05 03:42:52,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5185 states, 5184 states have (on average 4.734182098765432) internal successors, (24542), 5184 states have internal predecessors, (24542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:52,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5185 states to 5185 states and 24542 transitions. [2021-06-05 03:42:52,491 INFO L78 Accepts]: Start accepts. Automaton has 5185 states and 24542 transitions. Word has length 29 [2021-06-05 03:42:52,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:52,491 INFO L482 AbstractCegarLoop]: Abstraction has 5185 states and 24542 transitions. [2021-06-05 03:42:52,491 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:52,491 INFO L276 IsEmpty]: Start isEmpty. Operand 5185 states and 24542 transitions. [2021-06-05 03:42:52,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:52,500 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:52,500 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:52,500 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable476 [2021-06-05 03:42:52,500 INFO L430 AbstractCegarLoop]: === Iteration 478 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:52,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:52,500 INFO L82 PathProgramCache]: Analyzing trace with hash 1339961799, now seen corresponding path program 473 times [2021-06-05 03:42:52,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:52,500 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069798369] [2021-06-05 03:42:52,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:52,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:52,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:52,610 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:52,610 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069798369] [2021-06-05 03:42:52,611 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069798369] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:52,611 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:52,611 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:52,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307222390] [2021-06-05 03:42:52,611 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:52,611 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:52,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:52,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:52,611 INFO L87 Difference]: Start difference. First operand 5185 states and 24542 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:52,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:52,722 INFO L93 Difference]: Finished difference Result 11531 states and 51599 transitions. [2021-06-05 03:42:52,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:52,722 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:52,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:52,751 INFO L225 Difference]: With dead ends: 11531 [2021-06-05 03:42:52,751 INFO L226 Difference]: Without dead ends: 11056 [2021-06-05 03:42:52,751 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 134.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:52,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11056 states. [2021-06-05 03:42:52,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11056 to 5261. [2021-06-05 03:42:52,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5261 states, 5260 states have (on average 4.720532319391635) internal successors, (24830), 5260 states have internal predecessors, (24830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:52,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5261 states to 5261 states and 24830 transitions. [2021-06-05 03:42:52,981 INFO L78 Accepts]: Start accepts. Automaton has 5261 states and 24830 transitions. Word has length 29 [2021-06-05 03:42:52,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:52,981 INFO L482 AbstractCegarLoop]: Abstraction has 5261 states and 24830 transitions. [2021-06-05 03:42:52,981 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:52,981 INFO L276 IsEmpty]: Start isEmpty. Operand 5261 states and 24830 transitions. [2021-06-05 03:42:52,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:52,992 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:52,992 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:52,992 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable477 [2021-06-05 03:42:52,992 INFO L430 AbstractCegarLoop]: === Iteration 479 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:52,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:52,993 INFO L82 PathProgramCache]: Analyzing trace with hash 493164837, now seen corresponding path program 474 times [2021-06-05 03:42:52,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:52,993 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028016652] [2021-06-05 03:42:52,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:52,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:53,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:53,102 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:53,102 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028016652] [2021-06-05 03:42:53,103 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028016652] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:53,103 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:53,103 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:53,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790804301] [2021-06-05 03:42:53,103 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:53,103 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:53,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:53,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:53,103 INFO L87 Difference]: Start difference. First operand 5261 states and 24830 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:53,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:53,217 INFO L93 Difference]: Finished difference Result 11527 states and 51511 transitions. [2021-06-05 03:42:53,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:53,217 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:53,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:53,245 INFO L225 Difference]: With dead ends: 11527 [2021-06-05 03:42:53,245 INFO L226 Difference]: Without dead ends: 10926 [2021-06-05 03:42:53,245 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 133.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:53,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10926 states. [2021-06-05 03:42:53,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10926 to 5131. [2021-06-05 03:42:53,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.746393762183236) internal successors, (24349), 5130 states have internal predecessors, (24349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:53,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24349 transitions. [2021-06-05 03:42:53,468 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24349 transitions. Word has length 29 [2021-06-05 03:42:53,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:53,468 INFO L482 AbstractCegarLoop]: Abstraction has 5131 states and 24349 transitions. [2021-06-05 03:42:53,468 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:53,468 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24349 transitions. [2021-06-05 03:42:53,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:53,477 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:53,477 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:53,477 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable478 [2021-06-05 03:42:53,477 INFO L430 AbstractCegarLoop]: === Iteration 480 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:53,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:53,477 INFO L82 PathProgramCache]: Analyzing trace with hash -1885684439, now seen corresponding path program 475 times [2021-06-05 03:42:53,477 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:53,477 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194267830] [2021-06-05 03:42:53,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:53,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:53,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:53,605 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:53,605 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194267830] [2021-06-05 03:42:53,605 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194267830] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:53,605 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:53,605 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:53,605 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286831907] [2021-06-05 03:42:53,605 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:53,605 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:53,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:53,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:53,606 INFO L87 Difference]: Start difference. First operand 5131 states and 24349 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:53,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:53,699 INFO L93 Difference]: Finished difference Result 11108 states and 49772 transitions. [2021-06-05 03:42:53,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:53,700 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:53,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:53,726 INFO L225 Difference]: With dead ends: 11108 [2021-06-05 03:42:53,726 INFO L226 Difference]: Without dead ends: 10693 [2021-06-05 03:42:53,726 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 135.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:53,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10693 states. [2021-06-05 03:42:53,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10693 to 5203. [2021-06-05 03:42:53,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5203 states, 5202 states have (on average 4.738369857747021) internal successors, (24649), 5202 states have internal predecessors, (24649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:53,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5203 states to 5203 states and 24649 transitions. [2021-06-05 03:42:53,951 INFO L78 Accepts]: Start accepts. Automaton has 5203 states and 24649 transitions. Word has length 29 [2021-06-05 03:42:53,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:53,951 INFO L482 AbstractCegarLoop]: Abstraction has 5203 states and 24649 transitions. [2021-06-05 03:42:53,951 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:53,951 INFO L276 IsEmpty]: Start isEmpty. Operand 5203 states and 24649 transitions. [2021-06-05 03:42:53,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:53,960 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:53,960 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:53,960 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable479 [2021-06-05 03:42:53,960 INFO L430 AbstractCegarLoop]: === Iteration 481 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:53,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:53,960 INFO L82 PathProgramCache]: Analyzing trace with hash 1562485895, now seen corresponding path program 476 times [2021-06-05 03:42:53,960 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:53,960 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382303809] [2021-06-05 03:42:53,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:53,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:54,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:54,090 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:54,090 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382303809] [2021-06-05 03:42:54,090 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382303809] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:54,090 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:54,090 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:54,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403913094] [2021-06-05 03:42:54,090 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:54,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:54,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:54,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:54,091 INFO L87 Difference]: Start difference. First operand 5203 states and 24649 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:54,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:54,205 INFO L93 Difference]: Finished difference Result 11168 states and 49988 transitions. [2021-06-05 03:42:54,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:54,205 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:54,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:54,232 INFO L225 Difference]: With dead ends: 11168 [2021-06-05 03:42:54,232 INFO L226 Difference]: Without dead ends: 10645 [2021-06-05 03:42:54,232 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 153.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:54,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10645 states. [2021-06-05 03:42:54,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10645 to 5155. [2021-06-05 03:42:54,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5155 states, 5154 states have (on average 4.743694218083042) internal successors, (24449), 5154 states have internal predecessors, (24449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:54,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 24449 transitions. [2021-06-05 03:42:54,459 INFO L78 Accepts]: Start accepts. Automaton has 5155 states and 24449 transitions. Word has length 29 [2021-06-05 03:42:54,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:54,459 INFO L482 AbstractCegarLoop]: Abstraction has 5155 states and 24449 transitions. [2021-06-05 03:42:54,459 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:54,459 INFO L276 IsEmpty]: Start isEmpty. Operand 5155 states and 24449 transitions. [2021-06-05 03:42:54,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:54,467 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:54,467 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:54,468 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable480 [2021-06-05 03:42:54,468 INFO L430 AbstractCegarLoop]: === Iteration 482 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:54,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:54,468 INFO L82 PathProgramCache]: Analyzing trace with hash 386221319, now seen corresponding path program 477 times [2021-06-05 03:42:54,468 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:54,468 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424033286] [2021-06-05 03:42:54,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:54,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:54,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:54,600 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:54,600 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424033286] [2021-06-05 03:42:54,600 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424033286] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:54,600 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:54,600 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:54,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000037852] [2021-06-05 03:42:54,600 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:54,600 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:54,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:54,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:54,600 INFO L87 Difference]: Start difference. First operand 5155 states and 24449 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:54,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:54,699 INFO L93 Difference]: Finished difference Result 11104 states and 49736 transitions. [2021-06-05 03:42:54,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:54,699 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:54,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:54,726 INFO L225 Difference]: With dead ends: 11104 [2021-06-05 03:42:54,726 INFO L226 Difference]: Without dead ends: 10689 [2021-06-05 03:42:54,727 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 139.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:54,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10689 states. [2021-06-05 03:42:54,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10689 to 5203. [2021-06-05 03:42:54,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5203 states, 5202 states have (on average 4.7337562475970785) internal successors, (24625), 5202 states have internal predecessors, (24625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:54,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5203 states to 5203 states and 24625 transitions. [2021-06-05 03:42:54,954 INFO L78 Accepts]: Start accepts. Automaton has 5203 states and 24625 transitions. Word has length 29 [2021-06-05 03:42:54,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:54,954 INFO L482 AbstractCegarLoop]: Abstraction has 5203 states and 24625 transitions. [2021-06-05 03:42:54,954 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:54,954 INFO L276 IsEmpty]: Start isEmpty. Operand 5203 states and 24625 transitions. [2021-06-05 03:42:54,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:54,963 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:54,963 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:54,963 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable481 [2021-06-05 03:42:54,963 INFO L430 AbstractCegarLoop]: === Iteration 483 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:54,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:54,963 INFO L82 PathProgramCache]: Analyzing trace with hash -409805561, now seen corresponding path program 478 times [2021-06-05 03:42:54,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:54,963 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270937918] [2021-06-05 03:42:54,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:54,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:55,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:55,094 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:55,094 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270937918] [2021-06-05 03:42:55,094 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270937918] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:55,094 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:55,095 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:55,095 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074142752] [2021-06-05 03:42:55,095 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:55,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:55,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:55,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:55,095 INFO L87 Difference]: Start difference. First operand 5203 states and 24625 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:55,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:55,211 INFO L93 Difference]: Finished difference Result 11160 states and 49940 transitions. [2021-06-05 03:42:55,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:55,212 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:55,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:55,239 INFO L225 Difference]: With dead ends: 11160 [2021-06-05 03:42:55,239 INFO L226 Difference]: Without dead ends: 10641 [2021-06-05 03:42:55,240 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 155.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:55,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10641 states. [2021-06-05 03:42:55,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10641 to 5155. [2021-06-05 03:42:55,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5155 states, 5154 states have (on average 4.739037640667442) internal successors, (24425), 5154 states have internal predecessors, (24425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:55,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 24425 transitions. [2021-06-05 03:42:55,466 INFO L78 Accepts]: Start accepts. Automaton has 5155 states and 24425 transitions. Word has length 29 [2021-06-05 03:42:55,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:55,466 INFO L482 AbstractCegarLoop]: Abstraction has 5155 states and 24425 transitions. [2021-06-05 03:42:55,466 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:55,466 INFO L276 IsEmpty]: Start isEmpty. Operand 5155 states and 24425 transitions. [2021-06-05 03:42:55,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:55,475 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:55,475 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:55,475 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable482 [2021-06-05 03:42:55,475 INFO L430 AbstractCegarLoop]: === Iteration 484 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:55,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:55,475 INFO L82 PathProgramCache]: Analyzing trace with hash -470526747, now seen corresponding path program 479 times [2021-06-05 03:42:55,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:55,475 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070530439] [2021-06-05 03:42:55,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:55,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:55,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:55,593 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:55,593 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070530439] [2021-06-05 03:42:55,593 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070530439] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:55,593 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:55,593 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:55,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555415504] [2021-06-05 03:42:55,594 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:55,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:55,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:55,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:55,594 INFO L87 Difference]: Start difference. First operand 5155 states and 24425 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:55,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:55,704 INFO L93 Difference]: Finished difference Result 11252 states and 50380 transitions. [2021-06-05 03:42:55,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:55,704 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:55,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:55,731 INFO L225 Difference]: With dead ends: 11252 [2021-06-05 03:42:55,731 INFO L226 Difference]: Without dead ends: 10777 [2021-06-05 03:42:55,731 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 141.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:55,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10777 states. [2021-06-05 03:42:55,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10777 to 5231. [2021-06-05 03:42:55,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5231 states, 5230 states have (on average 4.725239005736138) internal successors, (24713), 5230 states have internal predecessors, (24713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:55,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5231 states to 5231 states and 24713 transitions. [2021-06-05 03:42:55,955 INFO L78 Accepts]: Start accepts. Automaton has 5231 states and 24713 transitions. Word has length 29 [2021-06-05 03:42:55,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:55,955 INFO L482 AbstractCegarLoop]: Abstraction has 5231 states and 24713 transitions. [2021-06-05 03:42:55,955 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:55,955 INFO L276 IsEmpty]: Start isEmpty. Operand 5231 states and 24713 transitions. [2021-06-05 03:42:55,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:55,964 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:55,964 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:55,964 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable483 [2021-06-05 03:42:55,964 INFO L430 AbstractCegarLoop]: === Iteration 485 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:55,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:55,965 INFO L82 PathProgramCache]: Analyzing trace with hash -951428793, now seen corresponding path program 480 times [2021-06-05 03:42:55,965 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:55,965 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506764977] [2021-06-05 03:42:55,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:55,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:56,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:56,085 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:56,085 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506764977] [2021-06-05 03:42:56,085 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506764977] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:56,085 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:56,085 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:56,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955053648] [2021-06-05 03:42:56,085 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:56,085 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:56,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:56,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:56,086 INFO L87 Difference]: Start difference. First operand 5231 states and 24713 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:56,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:56,214 INFO L93 Difference]: Finished difference Result 11248 states and 50292 transitions. [2021-06-05 03:42:56,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:56,214 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:56,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:56,240 INFO L225 Difference]: With dead ends: 11248 [2021-06-05 03:42:56,240 INFO L226 Difference]: Without dead ends: 10649 [2021-06-05 03:42:56,241 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 145.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:56,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10649 states. [2021-06-05 03:42:56,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10649 to 5103. [2021-06-05 03:42:56,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5103 states, 5102 states have (on average 4.757546060368483) internal successors, (24273), 5102 states have internal predecessors, (24273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:56,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5103 states to 5103 states and 24273 transitions. [2021-06-05 03:42:56,466 INFO L78 Accepts]: Start accepts. Automaton has 5103 states and 24273 transitions. Word has length 29 [2021-06-05 03:42:56,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:56,466 INFO L482 AbstractCegarLoop]: Abstraction has 5103 states and 24273 transitions. [2021-06-05 03:42:56,466 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:56,466 INFO L276 IsEmpty]: Start isEmpty. Operand 5103 states and 24273 transitions. [2021-06-05 03:42:56,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:56,474 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:56,474 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:56,474 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable484 [2021-06-05 03:42:56,474 INFO L430 AbstractCegarLoop]: === Iteration 486 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:56,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:56,475 INFO L82 PathProgramCache]: Analyzing trace with hash -1716000441, now seen corresponding path program 481 times [2021-06-05 03:42:56,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:56,475 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337952589] [2021-06-05 03:42:56,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:56,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:56,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:56,602 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:56,602 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337952589] [2021-06-05 03:42:56,602 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337952589] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:56,602 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:56,602 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:56,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008610653] [2021-06-05 03:42:56,602 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:56,602 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:56,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:56,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:56,602 INFO L87 Difference]: Start difference. First operand 5103 states and 24273 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:56,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:56,713 INFO L93 Difference]: Finished difference Result 10300 states and 46061 transitions. [2021-06-05 03:42:56,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:56,713 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:56,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:56,738 INFO L225 Difference]: With dead ends: 10300 [2021-06-05 03:42:56,738 INFO L226 Difference]: Without dead ends: 9885 [2021-06-05 03:42:56,738 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 151.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:56,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9885 states. [2021-06-05 03:42:56,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9885 to 5179. [2021-06-05 03:42:56,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.750289687137891) internal successors, (24597), 5178 states have internal predecessors, (24597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:56,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24597 transitions. [2021-06-05 03:42:56,953 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24597 transitions. Word has length 29 [2021-06-05 03:42:56,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:56,953 INFO L482 AbstractCegarLoop]: Abstraction has 5179 states and 24597 transitions. [2021-06-05 03:42:56,953 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:56,953 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24597 transitions. [2021-06-05 03:42:56,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:56,962 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:56,962 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:56,962 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable485 [2021-06-05 03:42:56,962 INFO L430 AbstractCegarLoop]: === Iteration 487 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:56,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:56,962 INFO L82 PathProgramCache]: Analyzing trace with hash -999337495, now seen corresponding path program 482 times [2021-06-05 03:42:56,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:56,962 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119787283] [2021-06-05 03:42:56,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:56,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:57,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:57,089 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:57,089 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119787283] [2021-06-05 03:42:57,090 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119787283] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:57,090 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:57,090 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:57,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460567100] [2021-06-05 03:42:57,090 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:57,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:57,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:57,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:57,090 INFO L87 Difference]: Start difference. First operand 5179 states and 24597 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:57,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:57,200 INFO L93 Difference]: Finished difference Result 10362 states and 46282 transitions. [2021-06-05 03:42:57,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:57,201 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:57,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:57,225 INFO L225 Difference]: With dead ends: 10362 [2021-06-05 03:42:57,225 INFO L226 Difference]: Without dead ends: 9837 [2021-06-05 03:42:57,225 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 151.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:57,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9837 states. [2021-06-05 03:42:57,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9837 to 5131. [2021-06-05 03:42:57,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.757309941520468) internal successors, (24405), 5130 states have internal predecessors, (24405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:57,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24405 transitions. [2021-06-05 03:42:57,441 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24405 transitions. Word has length 29 [2021-06-05 03:42:57,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:57,441 INFO L482 AbstractCegarLoop]: Abstraction has 5131 states and 24405 transitions. [2021-06-05 03:42:57,441 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:57,441 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24405 transitions. [2021-06-05 03:42:57,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:57,450 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:57,450 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:57,450 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable486 [2021-06-05 03:42:57,450 INFO L430 AbstractCegarLoop]: === Iteration 488 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:57,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:57,450 INFO L82 PathProgramCache]: Analyzing trace with hash 2098064809, now seen corresponding path program 483 times [2021-06-05 03:42:57,450 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:57,450 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762256272] [2021-06-05 03:42:57,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:57,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:57,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:57,570 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:57,570 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762256272] [2021-06-05 03:42:57,570 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762256272] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:57,570 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:57,570 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:57,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340576341] [2021-06-05 03:42:57,570 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:57,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:57,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:57,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:57,571 INFO L87 Difference]: Start difference. First operand 5131 states and 24405 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:57,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:57,698 INFO L93 Difference]: Finished difference Result 10222 states and 45696 transitions. [2021-06-05 03:42:57,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:57,698 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:57,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:57,722 INFO L225 Difference]: With dead ends: 10222 [2021-06-05 03:42:57,723 INFO L226 Difference]: Without dead ends: 9807 [2021-06-05 03:42:57,723 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 143.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:57,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9807 states. [2021-06-05 03:42:57,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9807 to 5163. [2021-06-05 03:42:57,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5163 states, 5162 states have (on average 4.749515691592406) internal successors, (24517), 5162 states have internal predecessors, (24517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:57,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5163 states to 5163 states and 24517 transitions. [2021-06-05 03:42:57,936 INFO L78 Accepts]: Start accepts. Automaton has 5163 states and 24517 transitions. Word has length 29 [2021-06-05 03:42:57,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:57,936 INFO L482 AbstractCegarLoop]: Abstraction has 5163 states and 24517 transitions. [2021-06-05 03:42:57,936 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:57,936 INFO L276 IsEmpty]: Start isEmpty. Operand 5163 states and 24517 transitions. [2021-06-05 03:42:57,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:57,945 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:57,945 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:57,945 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable487 [2021-06-05 03:42:57,945 INFO L430 AbstractCegarLoop]: === Iteration 489 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:57,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:57,945 INFO L82 PathProgramCache]: Analyzing trace with hash -1785494491, now seen corresponding path program 484 times [2021-06-05 03:42:57,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:57,945 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50148802] [2021-06-05 03:42:57,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:57,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:58,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:58,066 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:58,067 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50148802] [2021-06-05 03:42:58,067 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50148802] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:58,067 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:58,067 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:58,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636244015] [2021-06-05 03:42:58,067 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:58,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:58,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:58,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:58,067 INFO L87 Difference]: Start difference. First operand 5163 states and 24517 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:58,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:58,180 INFO L93 Difference]: Finished difference Result 10222 states and 45664 transitions. [2021-06-05 03:42:58,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:58,181 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:58,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:58,205 INFO L225 Difference]: With dead ends: 10222 [2021-06-05 03:42:58,205 INFO L226 Difference]: Without dead ends: 9775 [2021-06-05 03:42:58,205 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:58,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9775 states. [2021-06-05 03:42:58,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9775 to 5131. [2021-06-05 03:42:58,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.754191033138402) internal successors, (24389), 5130 states have internal predecessors, (24389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:58,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24389 transitions. [2021-06-05 03:42:58,419 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24389 transitions. Word has length 29 [2021-06-05 03:42:58,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:58,419 INFO L482 AbstractCegarLoop]: Abstraction has 5131 states and 24389 transitions. [2021-06-05 03:42:58,419 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:58,419 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24389 transitions. [2021-06-05 03:42:58,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:58,427 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:58,427 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:58,428 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable488 [2021-06-05 03:42:58,428 INFO L430 AbstractCegarLoop]: === Iteration 490 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:58,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:58,428 INFO L82 PathProgramCache]: Analyzing trace with hash -1649799003, now seen corresponding path program 485 times [2021-06-05 03:42:58,428 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:58,428 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008805236] [2021-06-05 03:42:58,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:58,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:58,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:58,605 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:58,605 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008805236] [2021-06-05 03:42:58,605 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008805236] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:58,605 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:58,605 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:58,605 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991558040] [2021-06-05 03:42:58,605 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:58,605 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:58,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:58,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:58,605 INFO L87 Difference]: Start difference. First operand 5131 states and 24389 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:58,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:58,732 INFO L93 Difference]: Finished difference Result 10362 states and 46298 transitions. [2021-06-05 03:42:58,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:58,733 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:58,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:58,757 INFO L225 Difference]: With dead ends: 10362 [2021-06-05 03:42:58,757 INFO L226 Difference]: Without dead ends: 9885 [2021-06-05 03:42:58,757 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 200.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:58,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9885 states. [2021-06-05 03:42:58,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9885 to 5179. [2021-06-05 03:42:58,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.744109694862882) internal successors, (24565), 5178 states have internal predecessors, (24565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:58,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24565 transitions. [2021-06-05 03:42:58,972 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24565 transitions. Word has length 29 [2021-06-05 03:42:58,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:58,972 INFO L482 AbstractCegarLoop]: Abstraction has 5179 states and 24565 transitions. [2021-06-05 03:42:58,972 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:58,972 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24565 transitions. [2021-06-05 03:42:58,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:58,981 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:58,981 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:58,981 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable489 [2021-06-05 03:42:58,981 INFO L430 AbstractCegarLoop]: === Iteration 491 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:58,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:58,981 INFO L82 PathProgramCache]: Analyzing trace with hash -568736377, now seen corresponding path program 486 times [2021-06-05 03:42:58,981 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:58,981 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229924075] [2021-06-05 03:42:58,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:58,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:59,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:59,108 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:59,108 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229924075] [2021-06-05 03:42:59,108 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229924075] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:59,108 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:59,109 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:59,109 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019324564] [2021-06-05 03:42:59,109 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:59,109 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:59,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:59,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:59,109 INFO L87 Difference]: Start difference. First operand 5179 states and 24565 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:59,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:59,208 INFO L93 Difference]: Finished difference Result 10300 states and 45981 transitions. [2021-06-05 03:42:59,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:59,209 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:59,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:59,233 INFO L225 Difference]: With dead ends: 10300 [2021-06-05 03:42:59,234 INFO L226 Difference]: Without dead ends: 9821 [2021-06-05 03:42:59,234 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 134.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:59,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9821 states. [2021-06-05 03:42:59,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9821 to 5115. [2021-06-05 03:42:59,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5115 states, 5114 states have (on average 4.758114978490418) internal successors, (24333), 5114 states have internal predecessors, (24333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:59,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5115 states to 5115 states and 24333 transitions. [2021-06-05 03:42:59,445 INFO L78 Accepts]: Start accepts. Automaton has 5115 states and 24333 transitions. Word has length 29 [2021-06-05 03:42:59,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:59,445 INFO L482 AbstractCegarLoop]: Abstraction has 5115 states and 24333 transitions. [2021-06-05 03:42:59,445 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:59,445 INFO L276 IsEmpty]: Start isEmpty. Operand 5115 states and 24333 transitions. [2021-06-05 03:42:59,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:59,453 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:59,454 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:59,454 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable490 [2021-06-05 03:42:59,454 INFO L430 AbstractCegarLoop]: === Iteration 492 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:59,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:59,454 INFO L82 PathProgramCache]: Analyzing trace with hash -6398679, now seen corresponding path program 487 times [2021-06-05 03:42:59,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:59,454 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296150627] [2021-06-05 03:42:59,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:59,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:42:59,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:42:59,585 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:42:59,585 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296150627] [2021-06-05 03:42:59,585 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296150627] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:42:59,585 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:42:59,585 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:42:59,585 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611941826] [2021-06-05 03:42:59,585 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:42:59,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:42:59,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:42:59,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:42:59,586 INFO L87 Difference]: Start difference. First operand 5115 states and 24333 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:59,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:42:59,693 INFO L93 Difference]: Finished difference Result 10414 states and 46588 transitions. [2021-06-05 03:42:59,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:42:59,693 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:42:59,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:42:59,718 INFO L225 Difference]: With dead ends: 10414 [2021-06-05 03:42:59,718 INFO L226 Difference]: Without dead ends: 9999 [2021-06-05 03:42:59,718 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 153.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:42:59,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9999 states. [2021-06-05 03:42:59,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9999 to 5187. [2021-06-05 03:42:59,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5187 states, 5186 states have (on average 4.749903586579252) internal successors, (24633), 5186 states have internal predecessors, (24633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:59,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 5187 states and 24633 transitions. [2021-06-05 03:42:59,932 INFO L78 Accepts]: Start accepts. Automaton has 5187 states and 24633 transitions. Word has length 29 [2021-06-05 03:42:59,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:42:59,932 INFO L482 AbstractCegarLoop]: Abstraction has 5187 states and 24633 transitions. [2021-06-05 03:42:59,932 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:42:59,932 INFO L276 IsEmpty]: Start isEmpty. Operand 5187 states and 24633 transitions. [2021-06-05 03:42:59,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:42:59,941 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:42:59,941 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:42:59,941 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable491 [2021-06-05 03:42:59,941 INFO L430 AbstractCegarLoop]: === Iteration 493 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:42:59,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:42:59,941 INFO L82 PathProgramCache]: Analyzing trace with hash 710264267, now seen corresponding path program 488 times [2021-06-05 03:42:59,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:42:59,941 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786245818] [2021-06-05 03:42:59,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:42:59,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:00,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:00,069 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:00,069 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786245818] [2021-06-05 03:43:00,069 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786245818] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:00,069 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:00,069 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:00,069 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798722136] [2021-06-05 03:43:00,069 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:00,069 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:00,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:00,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:00,070 INFO L87 Difference]: Start difference. First operand 5187 states and 24633 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:00,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:00,177 INFO L93 Difference]: Finished difference Result 10476 states and 46809 transitions. [2021-06-05 03:43:00,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:00,177 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:00,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:00,202 INFO L225 Difference]: With dead ends: 10476 [2021-06-05 03:43:00,202 INFO L226 Difference]: Without dead ends: 9951 [2021-06-05 03:43:00,202 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 152.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:00,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9951 states. [2021-06-05 03:43:00,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9951 to 5139. [2021-06-05 03:43:00,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5139 states, 5138 states have (on average 4.755352277150642) internal successors, (24433), 5138 states have internal predecessors, (24433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:00,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5139 states to 5139 states and 24433 transitions. [2021-06-05 03:43:00,418 INFO L78 Accepts]: Start accepts. Automaton has 5139 states and 24433 transitions. Word has length 29 [2021-06-05 03:43:00,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:00,419 INFO L482 AbstractCegarLoop]: Abstraction has 5139 states and 24433 transitions. [2021-06-05 03:43:00,419 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:00,419 INFO L276 IsEmpty]: Start isEmpty. Operand 5139 states and 24433 transitions. [2021-06-05 03:43:00,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:00,427 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:00,427 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:00,427 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable492 [2021-06-05 03:43:00,427 INFO L430 AbstractCegarLoop]: === Iteration 494 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:00,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:00,428 INFO L82 PathProgramCache]: Analyzing trace with hash 1086571817, now seen corresponding path program 489 times [2021-06-05 03:43:00,428 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:00,428 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916239853] [2021-06-05 03:43:00,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:00,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:00,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:00,561 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:00,561 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916239853] [2021-06-05 03:43:00,561 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916239853] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:00,561 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:00,561 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:00,561 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307181359] [2021-06-05 03:43:00,562 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:00,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:00,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:00,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:00,562 INFO L87 Difference]: Start difference. First operand 5139 states and 24433 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:00,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:00,685 INFO L93 Difference]: Finished difference Result 10412 states and 46559 transitions. [2021-06-05 03:43:00,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:00,686 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:00,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:00,710 INFO L225 Difference]: With dead ends: 10412 [2021-06-05 03:43:00,710 INFO L226 Difference]: Without dead ends: 9997 [2021-06-05 03:43:00,711 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 157.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:00,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9997 states. [2021-06-05 03:43:00,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9997 to 5187. [2021-06-05 03:43:00,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5187 states, 5186 states have (on average 4.74527574238334) internal successors, (24609), 5186 states have internal predecessors, (24609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:00,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 5187 states and 24609 transitions. [2021-06-05 03:43:00,926 INFO L78 Accepts]: Start accepts. Automaton has 5187 states and 24609 transitions. Word has length 29 [2021-06-05 03:43:00,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:00,926 INFO L482 AbstractCegarLoop]: Abstraction has 5187 states and 24609 transitions. [2021-06-05 03:43:00,926 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:00,926 INFO L276 IsEmpty]: Start isEmpty. Operand 5187 states and 24609 transitions. [2021-06-05 03:43:00,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:00,934 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:00,934 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:00,935 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable493 [2021-06-05 03:43:00,935 INFO L430 AbstractCegarLoop]: === Iteration 495 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:00,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:00,935 INFO L82 PathProgramCache]: Analyzing trace with hash 2116137193, now seen corresponding path program 490 times [2021-06-05 03:43:00,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:00,935 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451602413] [2021-06-05 03:43:00,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:00,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:01,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:01,068 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:01,068 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451602413] [2021-06-05 03:43:01,068 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451602413] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:01,068 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:01,068 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:01,068 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096451339] [2021-06-05 03:43:01,068 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:01,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:01,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:01,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:01,069 INFO L87 Difference]: Start difference. First operand 5187 states and 24609 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:01,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:01,188 INFO L93 Difference]: Finished difference Result 10472 states and 46775 transitions. [2021-06-05 03:43:01,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:01,188 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:01,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:01,213 INFO L225 Difference]: With dead ends: 10472 [2021-06-05 03:43:01,213 INFO L226 Difference]: Without dead ends: 9949 [2021-06-05 03:43:01,213 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 157.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:01,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9949 states. [2021-06-05 03:43:01,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9949 to 5139. [2021-06-05 03:43:01,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5139 states, 5138 states have (on average 4.7506811989100814) internal successors, (24409), 5138 states have internal predecessors, (24409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:01,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5139 states to 5139 states and 24409 transitions. [2021-06-05 03:43:01,426 INFO L78 Accepts]: Start accepts. Automaton has 5139 states and 24409 transitions. Word has length 29 [2021-06-05 03:43:01,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:01,426 INFO L482 AbstractCegarLoop]: Abstraction has 5139 states and 24409 transitions. [2021-06-05 03:43:01,427 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:01,427 INFO L276 IsEmpty]: Start isEmpty. Operand 5139 states and 24409 transitions. [2021-06-05 03:43:01,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:01,435 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:01,435 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:01,435 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable494 [2021-06-05 03:43:01,435 INFO L430 AbstractCegarLoop]: === Iteration 496 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:01,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:01,435 INFO L82 PathProgramCache]: Analyzing trace with hash -2004903669, now seen corresponding path program 491 times [2021-06-05 03:43:01,436 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:01,436 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514473412] [2021-06-05 03:43:01,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:01,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:01,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:01,557 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:01,557 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514473412] [2021-06-05 03:43:01,557 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514473412] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:01,557 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:01,557 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:01,557 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277799025] [2021-06-05 03:43:01,557 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:01,557 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:01,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:01,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:01,557 INFO L87 Difference]: Start difference. First operand 5139 states and 24409 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:01,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:01,668 INFO L93 Difference]: Finished difference Result 10566 states and 47220 transitions. [2021-06-05 03:43:01,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:01,668 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:01,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:01,693 INFO L225 Difference]: With dead ends: 10566 [2021-06-05 03:43:01,693 INFO L226 Difference]: Without dead ends: 10089 [2021-06-05 03:43:01,694 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 146.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:01,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10089 states. [2021-06-05 03:43:01,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10089 to 5217. [2021-06-05 03:43:01,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5217 states, 5216 states have (on average 4.735812883435583) internal successors, (24702), 5216 states have internal predecessors, (24702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:01,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5217 states to 5217 states and 24702 transitions. [2021-06-05 03:43:01,910 INFO L78 Accepts]: Start accepts. Automaton has 5217 states and 24702 transitions. Word has length 29 [2021-06-05 03:43:01,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:01,910 INFO L482 AbstractCegarLoop]: Abstraction has 5217 states and 24702 transitions. [2021-06-05 03:43:01,910 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:01,910 INFO L276 IsEmpty]: Start isEmpty. Operand 5217 states and 24702 transitions. [2021-06-05 03:43:01,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:01,918 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:01,918 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:01,918 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable495 [2021-06-05 03:43:01,918 INFO L430 AbstractCegarLoop]: === Iteration 497 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:01,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:01,919 INFO L82 PathProgramCache]: Analyzing trace with hash 897919081, now seen corresponding path program 492 times [2021-06-05 03:43:01,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:01,919 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099623573] [2021-06-05 03:43:01,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:01,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:02,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:02,039 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:02,039 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099623573] [2021-06-05 03:43:02,039 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099623573] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:02,039 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:02,039 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:02,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311950454] [2021-06-05 03:43:02,039 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:02,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:02,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:02,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:02,040 INFO L87 Difference]: Start difference. First operand 5217 states and 24702 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:02,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:02,162 INFO L93 Difference]: Finished difference Result 10564 states and 47137 transitions. [2021-06-05 03:43:02,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:02,162 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:02,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:02,187 INFO L225 Difference]: With dead ends: 10564 [2021-06-05 03:43:02,187 INFO L226 Difference]: Without dead ends: 9987 [2021-06-05 03:43:02,187 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 144.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:02,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9987 states. [2021-06-05 03:43:02,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9987 to 5115. [2021-06-05 03:43:02,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5115 states, 5114 states have (on average 4.756550645287446) internal successors, (24325), 5114 states have internal predecessors, (24325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:02,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5115 states to 5115 states and 24325 transitions. [2021-06-05 03:43:02,401 INFO L78 Accepts]: Start accepts. Automaton has 5115 states and 24325 transitions. Word has length 29 [2021-06-05 03:43:02,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:02,402 INFO L482 AbstractCegarLoop]: Abstraction has 5115 states and 24325 transitions. [2021-06-05 03:43:02,402 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:02,402 INFO L276 IsEmpty]: Start isEmpty. Operand 5115 states and 24325 transitions. [2021-06-05 03:43:02,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:02,410 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:02,410 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:02,410 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable496 [2021-06-05 03:43:02,410 INFO L430 AbstractCegarLoop]: === Iteration 498 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:02,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:02,410 INFO L82 PathProgramCache]: Analyzing trace with hash -795784949, now seen corresponding path program 493 times [2021-06-05 03:43:02,411 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:02,411 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039006147] [2021-06-05 03:43:02,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:02,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:02,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:02,533 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:02,533 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039006147] [2021-06-05 03:43:02,533 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039006147] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:02,533 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:02,533 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:02,533 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726957285] [2021-06-05 03:43:02,533 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:02,533 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:02,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:02,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:02,533 INFO L87 Difference]: Start difference. First operand 5115 states and 24325 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:02,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:02,652 INFO L93 Difference]: Finished difference Result 10220 states and 45691 transitions. [2021-06-05 03:43:02,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:02,652 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:02,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:02,678 INFO L225 Difference]: With dead ends: 10220 [2021-06-05 03:43:02,678 INFO L226 Difference]: Without dead ends: 9805 [2021-06-05 03:43:02,678 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 146.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:02,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9805 states. [2021-06-05 03:43:02,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9805 to 5163. [2021-06-05 03:43:02,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5163 states, 5162 states have (on average 4.749515691592406) internal successors, (24517), 5162 states have internal predecessors, (24517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:02,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5163 states to 5163 states and 24517 transitions. [2021-06-05 03:43:02,901 INFO L78 Accepts]: Start accepts. Automaton has 5163 states and 24517 transitions. Word has length 29 [2021-06-05 03:43:02,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:02,901 INFO L482 AbstractCegarLoop]: Abstraction has 5163 states and 24517 transitions. [2021-06-05 03:43:02,901 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:02,901 INFO L276 IsEmpty]: Start isEmpty. Operand 5163 states and 24517 transitions. [2021-06-05 03:43:02,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:02,910 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:02,910 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:02,910 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable497 [2021-06-05 03:43:02,910 INFO L430 AbstractCegarLoop]: === Iteration 499 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:02,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:02,910 INFO L82 PathProgramCache]: Analyzing trace with hash -384376953, now seen corresponding path program 494 times [2021-06-05 03:43:02,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:02,911 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815956703] [2021-06-05 03:43:02,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:02,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:03,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:03,034 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:03,034 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815956703] [2021-06-05 03:43:03,034 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815956703] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:03,034 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:03,034 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:03,034 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349724021] [2021-06-05 03:43:03,034 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:03,034 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:03,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:03,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:03,035 INFO L87 Difference]: Start difference. First operand 5163 states and 24517 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:03,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:03,137 INFO L93 Difference]: Finished difference Result 10220 states and 45659 transitions. [2021-06-05 03:43:03,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:03,137 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:03,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:03,163 INFO L225 Difference]: With dead ends: 10220 [2021-06-05 03:43:03,163 INFO L226 Difference]: Without dead ends: 9773 [2021-06-05 03:43:03,163 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 130.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:03,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9773 states. [2021-06-05 03:43:03,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9773 to 5131. [2021-06-05 03:43:03,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.754191033138402) internal successors, (24389), 5130 states have internal predecessors, (24389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:03,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24389 transitions. [2021-06-05 03:43:03,377 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24389 transitions. Word has length 29 [2021-06-05 03:43:03,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:03,377 INFO L482 AbstractCegarLoop]: Abstraction has 5131 states and 24389 transitions. [2021-06-05 03:43:03,377 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:03,377 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24389 transitions. [2021-06-05 03:43:03,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:03,386 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:03,386 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:03,386 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable498 [2021-06-05 03:43:03,386 INFO L430 AbstractCegarLoop]: === Iteration 500 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:03,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:03,386 INFO L82 PathProgramCache]: Analyzing trace with hash 1476120809, now seen corresponding path program 495 times [2021-06-05 03:43:03,386 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:03,386 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998325992] [2021-06-05 03:43:03,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:03,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:03,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:03,523 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:03,523 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998325992] [2021-06-05 03:43:03,523 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998325992] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:03,523 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:03,523 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:03,523 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335099102] [2021-06-05 03:43:03,524 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:03,524 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:03,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:03,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:03,524 INFO L87 Difference]: Start difference. First operand 5131 states and 24389 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:03,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:03,652 INFO L93 Difference]: Finished difference Result 10296 states and 46019 transitions. [2021-06-05 03:43:03,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:03,652 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:03,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:03,676 INFO L225 Difference]: With dead ends: 10296 [2021-06-05 03:43:03,676 INFO L226 Difference]: Without dead ends: 9881 [2021-06-05 03:43:03,677 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 162.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:03,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9881 states. [2021-06-05 03:43:03,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9881 to 5179. [2021-06-05 03:43:03,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.744109694862882) internal successors, (24565), 5178 states have internal predecessors, (24565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:03,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24565 transitions. [2021-06-05 03:43:03,893 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24565 transitions. Word has length 29 [2021-06-05 03:43:03,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:03,893 INFO L482 AbstractCegarLoop]: Abstraction has 5179 states and 24565 transitions. [2021-06-05 03:43:03,893 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:03,893 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24565 transitions. [2021-06-05 03:43:03,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:03,902 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:03,902 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:03,902 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable499 [2021-06-05 03:43:03,902 INFO L430 AbstractCegarLoop]: === Iteration 501 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:03,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:03,902 INFO L82 PathProgramCache]: Analyzing trace with hash -469228341, now seen corresponding path program 496 times [2021-06-05 03:43:03,902 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:03,902 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714331594] [2021-06-05 03:43:03,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:03,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:04,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:04,038 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:04,038 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714331594] [2021-06-05 03:43:04,038 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714331594] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:04,038 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:04,038 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:04,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933589376] [2021-06-05 03:43:04,039 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:04,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:04,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:04,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:04,039 INFO L87 Difference]: Start difference. First operand 5179 states and 24565 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:04,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:04,172 INFO L93 Difference]: Finished difference Result 10356 states and 46235 transitions. [2021-06-05 03:43:04,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:04,172 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:04,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:04,197 INFO L225 Difference]: With dead ends: 10356 [2021-06-05 03:43:04,197 INFO L226 Difference]: Without dead ends: 9833 [2021-06-05 03:43:04,198 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 161.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:04,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9833 states. [2021-06-05 03:43:04,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9833 to 5131. [2021-06-05 03:43:04,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.751072124756336) internal successors, (24373), 5130 states have internal predecessors, (24373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:04,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24373 transitions. [2021-06-05 03:43:04,414 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24373 transitions. Word has length 29 [2021-06-05 03:43:04,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:04,414 INFO L482 AbstractCegarLoop]: Abstraction has 5131 states and 24373 transitions. [2021-06-05 03:43:04,414 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:04,414 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24373 transitions. [2021-06-05 03:43:04,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:04,423 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:04,423 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:04,423 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable500 [2021-06-05 03:43:04,423 INFO L430 AbstractCegarLoop]: === Iteration 502 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:04,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:04,423 INFO L82 PathProgramCache]: Analyzing trace with hash 1741906085, now seen corresponding path program 497 times [2021-06-05 03:43:04,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:04,423 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836421455] [2021-06-05 03:43:04,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:04,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:04,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:04,557 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:04,557 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836421455] [2021-06-05 03:43:04,557 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836421455] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:04,557 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:04,558 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:04,558 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728298244] [2021-06-05 03:43:04,558 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:04,558 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:04,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:04,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:04,558 INFO L87 Difference]: Start difference. First operand 5131 states and 24373 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:04,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:04,660 INFO L93 Difference]: Finished difference Result 10296 states and 46003 transitions. [2021-06-05 03:43:04,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:04,660 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:04,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:04,685 INFO L225 Difference]: With dead ends: 10296 [2021-06-05 03:43:04,685 INFO L226 Difference]: Without dead ends: 9881 [2021-06-05 03:43:04,685 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 141.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:04,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9881 states. [2021-06-05 03:43:04,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9881 to 5179. [2021-06-05 03:43:04,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.741019698725377) internal successors, (24549), 5178 states have internal predecessors, (24549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:04,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24549 transitions. [2021-06-05 03:43:04,901 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24549 transitions. Word has length 29 [2021-06-05 03:43:04,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:04,901 INFO L482 AbstractCegarLoop]: Abstraction has 5179 states and 24549 transitions. [2021-06-05 03:43:04,901 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:04,901 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24549 transitions. [2021-06-05 03:43:04,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:04,909 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:04,909 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:04,909 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable501 [2021-06-05 03:43:04,909 INFO L430 AbstractCegarLoop]: === Iteration 503 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:04,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:04,909 INFO L82 PathProgramCache]: Analyzing trace with hash -1471998585, now seen corresponding path program 498 times [2021-06-05 03:43:04,909 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:04,910 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951585073] [2021-06-05 03:43:04,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:04,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:05,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:05,043 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:05,043 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951585073] [2021-06-05 03:43:05,043 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951585073] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:05,043 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:05,043 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:05,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083190038] [2021-06-05 03:43:05,043 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:05,043 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:05,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:05,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:05,044 INFO L87 Difference]: Start difference. First operand 5179 states and 24549 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:05,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:05,153 INFO L93 Difference]: Finished difference Result 10356 states and 46219 transitions. [2021-06-05 03:43:05,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:05,153 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:05,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:05,177 INFO L225 Difference]: With dead ends: 10356 [2021-06-05 03:43:05,177 INFO L226 Difference]: Without dead ends: 9817 [2021-06-05 03:43:05,177 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 157.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:05,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9817 states. [2021-06-05 03:43:05,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9817 to 5115. [2021-06-05 03:43:05,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5115 states, 5114 states have (on average 4.754986312084474) internal successors, (24317), 5114 states have internal predecessors, (24317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:05,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5115 states to 5115 states and 24317 transitions. [2021-06-05 03:43:05,397 INFO L78 Accepts]: Start accepts. Automaton has 5115 states and 24317 transitions. Word has length 29 [2021-06-05 03:43:05,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:05,397 INFO L482 AbstractCegarLoop]: Abstraction has 5115 states and 24317 transitions. [2021-06-05 03:43:05,397 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:05,397 INFO L276 IsEmpty]: Start isEmpty. Operand 5115 states and 24317 transitions. [2021-06-05 03:43:05,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:05,406 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:05,406 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:05,406 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable502 [2021-06-05 03:43:05,406 INFO L430 AbstractCegarLoop]: === Iteration 504 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:05,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:05,406 INFO L82 PathProgramCache]: Analyzing trace with hash 1600302373, now seen corresponding path program 499 times [2021-06-05 03:43:05,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:05,406 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288526655] [2021-06-05 03:43:05,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:05,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:05,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:05,535 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:05,535 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288526655] [2021-06-05 03:43:05,535 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288526655] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:05,535 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:05,535 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:05,535 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818136461] [2021-06-05 03:43:05,535 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:05,535 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:05,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:05,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:05,536 INFO L87 Difference]: Start difference. First operand 5115 states and 24317 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:05,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:05,665 INFO L93 Difference]: Finished difference Result 10476 states and 46841 transitions. [2021-06-05 03:43:05,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:05,666 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:05,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:05,690 INFO L225 Difference]: With dead ends: 10476 [2021-06-05 03:43:05,690 INFO L226 Difference]: Without dead ends: 9999 [2021-06-05 03:43:05,691 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 153.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:05,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9999 states. [2021-06-05 03:43:05,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9999 to 5187. [2021-06-05 03:43:05,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5187 states, 5186 states have (on average 4.746818357115311) internal successors, (24617), 5186 states have internal predecessors, (24617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:05,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 5187 states and 24617 transitions. [2021-06-05 03:43:05,909 INFO L78 Accepts]: Start accepts. Automaton has 5187 states and 24617 transitions. Word has length 29 [2021-06-05 03:43:05,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:05,909 INFO L482 AbstractCegarLoop]: Abstraction has 5187 states and 24617 transitions. [2021-06-05 03:43:05,909 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:05,909 INFO L276 IsEmpty]: Start isEmpty. Operand 5187 states and 24617 transitions. [2021-06-05 03:43:05,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:05,918 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:05,918 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:05,918 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable503 [2021-06-05 03:43:05,918 INFO L430 AbstractCegarLoop]: === Iteration 505 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:05,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:05,918 INFO L82 PathProgramCache]: Analyzing trace with hash -1613602297, now seen corresponding path program 500 times [2021-06-05 03:43:05,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:05,918 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096730321] [2021-06-05 03:43:05,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:05,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:06,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:06,048 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:06,048 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096730321] [2021-06-05 03:43:06,048 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096730321] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:06,048 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:06,048 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:06,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019880485] [2021-06-05 03:43:06,048 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:06,048 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:06,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:06,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:06,048 INFO L87 Difference]: Start difference. First operand 5187 states and 24617 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:06,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:06,140 INFO L93 Difference]: Finished difference Result 10414 states and 46524 transitions. [2021-06-05 03:43:06,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:06,140 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:06,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:06,164 INFO L225 Difference]: With dead ends: 10414 [2021-06-05 03:43:06,165 INFO L226 Difference]: Without dead ends: 9951 [2021-06-05 03:43:06,165 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 136.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:06,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9951 states. [2021-06-05 03:43:06,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9951 to 5139. [2021-06-05 03:43:06,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5139 states, 5138 states have (on average 4.752238224990268) internal successors, (24417), 5138 states have internal predecessors, (24417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:06,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5139 states to 5139 states and 24417 transitions. [2021-06-05 03:43:06,386 INFO L78 Accepts]: Start accepts. Automaton has 5139 states and 24417 transitions. Word has length 29 [2021-06-05 03:43:06,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:06,386 INFO L482 AbstractCegarLoop]: Abstraction has 5139 states and 24417 transitions. [2021-06-05 03:43:06,386 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:06,386 INFO L276 IsEmpty]: Start isEmpty. Operand 5139 states and 24417 transitions. [2021-06-05 03:43:06,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:06,395 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:06,395 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:06,395 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable504 [2021-06-05 03:43:06,395 INFO L430 AbstractCegarLoop]: === Iteration 506 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:06,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:06,395 INFO L82 PathProgramCache]: Analyzing trace with hash 1119400327, now seen corresponding path program 501 times [2021-06-05 03:43:06,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:06,395 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69700367] [2021-06-05 03:43:06,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:06,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:06,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:06,517 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:06,517 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69700367] [2021-06-05 03:43:06,517 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69700367] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:06,517 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:06,517 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:06,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974375808] [2021-06-05 03:43:06,517 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:06,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:06,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:06,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:06,518 INFO L87 Difference]: Start difference. First operand 5139 states and 24417 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:06,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:06,627 INFO L93 Difference]: Finished difference Result 10566 states and 47228 transitions. [2021-06-05 03:43:06,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:06,627 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:06,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:06,652 INFO L225 Difference]: With dead ends: 10566 [2021-06-05 03:43:06,652 INFO L226 Difference]: Without dead ends: 10089 [2021-06-05 03:43:06,652 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 145.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:06,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10089 states. [2021-06-05 03:43:06,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10089 to 5217. [2021-06-05 03:43:06,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5217 states, 5216 states have (on average 4.737346625766871) internal successors, (24710), 5216 states have internal predecessors, (24710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:06,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5217 states to 5217 states and 24710 transitions. [2021-06-05 03:43:06,874 INFO L78 Accepts]: Start accepts. Automaton has 5217 states and 24710 transitions. Word has length 29 [2021-06-05 03:43:06,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:06,875 INFO L482 AbstractCegarLoop]: Abstraction has 5217 states and 24710 transitions. [2021-06-05 03:43:06,875 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:06,875 INFO L276 IsEmpty]: Start isEmpty. Operand 5217 states and 24710 transitions. [2021-06-05 03:43:06,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:06,883 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:06,883 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:06,884 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable505 [2021-06-05 03:43:06,884 INFO L430 AbstractCegarLoop]: === Iteration 507 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:06,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:06,884 INFO L82 PathProgramCache]: Analyzing trace with hash -568845945, now seen corresponding path program 502 times [2021-06-05 03:43:06,884 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:06,884 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856917867] [2021-06-05 03:43:06,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:06,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:07,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:07,004 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:07,004 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856917867] [2021-06-05 03:43:07,004 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856917867] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:07,004 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:07,004 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:07,004 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575072077] [2021-06-05 03:43:07,005 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:07,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:07,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:07,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:07,005 INFO L87 Difference]: Start difference. First operand 5217 states and 24710 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:07,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:07,127 INFO L93 Difference]: Finished difference Result 10564 states and 47145 transitions. [2021-06-05 03:43:07,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:07,127 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:07,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:07,152 INFO L225 Difference]: With dead ends: 10564 [2021-06-05 03:43:07,152 INFO L226 Difference]: Without dead ends: 10011 [2021-06-05 03:43:07,153 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 144.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:07,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10011 states. [2021-06-05 03:43:07,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10011 to 5139. [2021-06-05 03:43:07,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5139 states, 5138 states have (on average 4.7475671467497085) internal successors, (24393), 5138 states have internal predecessors, (24393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:07,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5139 states to 5139 states and 24393 transitions. [2021-06-05 03:43:07,370 INFO L78 Accepts]: Start accepts. Automaton has 5139 states and 24393 transitions. Word has length 29 [2021-06-05 03:43:07,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:07,370 INFO L482 AbstractCegarLoop]: Abstraction has 5139 states and 24393 transitions. [2021-06-05 03:43:07,370 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:07,370 INFO L276 IsEmpty]: Start isEmpty. Operand 5139 states and 24393 transitions. [2021-06-05 03:43:07,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:07,379 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:07,379 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:07,379 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable506 [2021-06-05 03:43:07,379 INFO L430 AbstractCegarLoop]: === Iteration 508 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:07,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:07,379 INFO L82 PathProgramCache]: Analyzing trace with hash 1507405289, now seen corresponding path program 503 times [2021-06-05 03:43:07,379 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:07,379 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624729071] [2021-06-05 03:43:07,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:07,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:07,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:07,512 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:07,512 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624729071] [2021-06-05 03:43:07,512 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624729071] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:07,512 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:07,512 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:07,512 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914849542] [2021-06-05 03:43:07,512 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:07,512 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:07,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:07,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:07,512 INFO L87 Difference]: Start difference. First operand 5139 states and 24393 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:07,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:07,606 INFO L93 Difference]: Finished difference Result 10412 states and 46519 transitions. [2021-06-05 03:43:07,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:07,606 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:07,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:07,632 INFO L225 Difference]: With dead ends: 10412 [2021-06-05 03:43:07,632 INFO L226 Difference]: Without dead ends: 9997 [2021-06-05 03:43:07,632 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 140.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:07,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9997 states. [2021-06-05 03:43:07,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9997 to 5187. [2021-06-05 03:43:07,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5187 states, 5186 states have (on average 4.737562668723486) internal successors, (24569), 5186 states have internal predecessors, (24569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:07,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 5187 states and 24569 transitions. [2021-06-05 03:43:07,849 INFO L78 Accepts]: Start accepts. Automaton has 5187 states and 24569 transitions. Word has length 29 [2021-06-05 03:43:07,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:07,849 INFO L482 AbstractCegarLoop]: Abstraction has 5187 states and 24569 transitions. [2021-06-05 03:43:07,849 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:07,849 INFO L276 IsEmpty]: Start isEmpty. Operand 5187 states and 24569 transitions. [2021-06-05 03:43:07,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:07,858 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:07,858 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:07,858 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable507 [2021-06-05 03:43:07,858 INFO L430 AbstractCegarLoop]: === Iteration 509 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:07,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:07,858 INFO L82 PathProgramCache]: Analyzing trace with hash 660608327, now seen corresponding path program 504 times [2021-06-05 03:43:07,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:07,858 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272125908] [2021-06-05 03:43:07,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:07,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:08,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:08,041 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:08,041 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272125908] [2021-06-05 03:43:08,041 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272125908] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:08,041 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:08,041 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:08,041 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704427537] [2021-06-05 03:43:08,041 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:08,041 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:08,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:08,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:08,041 INFO L87 Difference]: Start difference. First operand 5187 states and 24569 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:08,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:08,162 INFO L93 Difference]: Finished difference Result 10472 states and 46735 transitions. [2021-06-05 03:43:08,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:08,162 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:08,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:08,187 INFO L225 Difference]: With dead ends: 10472 [2021-06-05 03:43:08,187 INFO L226 Difference]: Without dead ends: 9917 [2021-06-05 03:43:08,187 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 206.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:08,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9917 states. [2021-06-05 03:43:08,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9917 to 5107. [2021-06-05 03:43:08,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5107 states, 5106 states have (on average 4.7577359968664314) internal successors, (24293), 5106 states have internal predecessors, (24293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:08,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5107 states to 5107 states and 24293 transitions. [2021-06-05 03:43:08,403 INFO L78 Accepts]: Start accepts. Automaton has 5107 states and 24293 transitions. Word has length 29 [2021-06-05 03:43:08,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:08,404 INFO L482 AbstractCegarLoop]: Abstraction has 5107 states and 24293 transitions. [2021-06-05 03:43:08,404 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:08,404 INFO L276 IsEmpty]: Start isEmpty. Operand 5107 states and 24293 transitions. [2021-06-05 03:43:08,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:08,412 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:08,412 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:08,412 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable508 [2021-06-05 03:43:08,412 INFO L430 AbstractCegarLoop]: === Iteration 510 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:08,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:08,413 INFO L82 PathProgramCache]: Analyzing trace with hash 533785769, now seen corresponding path program 505 times [2021-06-05 03:43:08,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:08,413 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929146430] [2021-06-05 03:43:08,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:08,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:08,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:08,537 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:08,537 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929146430] [2021-06-05 03:43:08,537 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929146430] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:08,537 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:08,537 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:08,537 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791920057] [2021-06-05 03:43:08,537 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:08,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:08,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:08,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:08,538 INFO L87 Difference]: Start difference. First operand 5107 states and 24293 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:08,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:08,647 INFO L93 Difference]: Finished difference Result 10294 states and 46038 transitions. [2021-06-05 03:43:08,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:08,647 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:08,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:08,671 INFO L225 Difference]: With dead ends: 10294 [2021-06-05 03:43:08,672 INFO L226 Difference]: Without dead ends: 9879 [2021-06-05 03:43:08,672 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 148.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:08,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9879 states. [2021-06-05 03:43:08,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9879 to 5179. [2021-06-05 03:43:08,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.749517188103515) internal successors, (24593), 5178 states have internal predecessors, (24593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:08,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24593 transitions. [2021-06-05 03:43:08,887 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24593 transitions. Word has length 29 [2021-06-05 03:43:08,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:08,887 INFO L482 AbstractCegarLoop]: Abstraction has 5179 states and 24593 transitions. [2021-06-05 03:43:08,887 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:08,887 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24593 transitions. [2021-06-05 03:43:08,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:08,896 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:08,896 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:08,896 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable509 [2021-06-05 03:43:08,896 INFO L430 AbstractCegarLoop]: === Iteration 511 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:08,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:08,896 INFO L82 PathProgramCache]: Analyzing trace with hash 1250448715, now seen corresponding path program 506 times [2021-06-05 03:43:08,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:08,897 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083442517] [2021-06-05 03:43:08,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:08,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:09,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:09,028 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:09,028 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083442517] [2021-06-05 03:43:09,028 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083442517] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:09,028 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:09,028 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:09,028 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450304954] [2021-06-05 03:43:09,028 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:09,028 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:09,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:09,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:09,029 INFO L87 Difference]: Start difference. First operand 5179 states and 24593 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:09,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:09,151 INFO L93 Difference]: Finished difference Result 10356 states and 46259 transitions. [2021-06-05 03:43:09,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:09,152 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:09,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:09,177 INFO L225 Difference]: With dead ends: 10356 [2021-06-05 03:43:09,177 INFO L226 Difference]: Without dead ends: 9831 [2021-06-05 03:43:09,177 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 153.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:09,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9831 states. [2021-06-05 03:43:09,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9831 to 5131. [2021-06-05 03:43:09,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.756530214424951) internal successors, (24401), 5130 states have internal predecessors, (24401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:09,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24401 transitions. [2021-06-05 03:43:09,393 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24401 transitions. Word has length 29 [2021-06-05 03:43:09,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:09,393 INFO L482 AbstractCegarLoop]: Abstraction has 5131 states and 24401 transitions. [2021-06-05 03:43:09,393 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:09,393 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24401 transitions. [2021-06-05 03:43:09,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:09,401 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:09,401 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:09,402 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable510 [2021-06-05 03:43:09,402 INFO L430 AbstractCegarLoop]: === Iteration 512 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:09,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:09,402 INFO L82 PathProgramCache]: Analyzing trace with hash 52883723, now seen corresponding path program 507 times [2021-06-05 03:43:09,402 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:09,402 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370407784] [2021-06-05 03:43:09,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:09,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:09,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:09,517 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:09,518 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370407784] [2021-06-05 03:43:09,518 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370407784] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:09,518 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:09,518 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:09,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974025129] [2021-06-05 03:43:09,518 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:09,518 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:09,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:09,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:09,519 INFO L87 Difference]: Start difference. First operand 5131 states and 24401 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:09,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:09,632 INFO L93 Difference]: Finished difference Result 10216 states and 45673 transitions. [2021-06-05 03:43:09,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:09,632 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:09,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:09,656 INFO L225 Difference]: With dead ends: 10216 [2021-06-05 03:43:09,656 INFO L226 Difference]: Without dead ends: 9801 [2021-06-05 03:43:09,657 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 137.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:09,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9801 states. [2021-06-05 03:43:09,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9801 to 5163. [2021-06-05 03:43:09,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5163 states, 5162 states have (on average 4.748740798140256) internal successors, (24513), 5162 states have internal predecessors, (24513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:09,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5163 states to 5163 states and 24513 transitions. [2021-06-05 03:43:09,873 INFO L78 Accepts]: Start accepts. Automaton has 5163 states and 24513 transitions. Word has length 29 [2021-06-05 03:43:09,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:09,873 INFO L482 AbstractCegarLoop]: Abstraction has 5163 states and 24513 transitions. [2021-06-05 03:43:09,873 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:09,873 INFO L276 IsEmpty]: Start isEmpty. Operand 5163 states and 24513 transitions. [2021-06-05 03:43:09,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:09,881 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:09,881 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:09,881 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable511 [2021-06-05 03:43:09,881 INFO L430 AbstractCegarLoop]: === Iteration 513 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:09,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:09,882 INFO L82 PathProgramCache]: Analyzing trace with hash 464291719, now seen corresponding path program 508 times [2021-06-05 03:43:09,882 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:09,882 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817642435] [2021-06-05 03:43:09,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:09,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:09,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:09,998 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:09,998 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817642435] [2021-06-05 03:43:09,998 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817642435] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:09,998 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:09,998 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:09,998 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583050490] [2021-06-05 03:43:09,998 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:09,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:09,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:09,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:09,998 INFO L87 Difference]: Start difference. First operand 5163 states and 24513 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:10,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:10,106 INFO L93 Difference]: Finished difference Result 10216 states and 45641 transitions. [2021-06-05 03:43:10,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:10,107 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:10,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:10,131 INFO L225 Difference]: With dead ends: 10216 [2021-06-05 03:43:10,131 INFO L226 Difference]: Without dead ends: 9769 [2021-06-05 03:43:10,131 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 123.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:10,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9769 states. [2021-06-05 03:43:10,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9769 to 5131. [2021-06-05 03:43:10,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.753411306042885) internal successors, (24385), 5130 states have internal predecessors, (24385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:10,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24385 transitions. [2021-06-05 03:43:10,348 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24385 transitions. Word has length 29 [2021-06-05 03:43:10,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:10,348 INFO L482 AbstractCegarLoop]: Abstraction has 5131 states and 24385 transitions. [2021-06-05 03:43:10,349 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:10,349 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24385 transitions. [2021-06-05 03:43:10,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:10,357 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:10,357 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:10,357 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable512 [2021-06-05 03:43:10,357 INFO L430 AbstractCegarLoop]: === Iteration 514 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:10,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:10,358 INFO L82 PathProgramCache]: Analyzing trace with hash 599987207, now seen corresponding path program 509 times [2021-06-05 03:43:10,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:10,358 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199265252] [2021-06-05 03:43:10,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:10,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:10,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:10,492 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:10,492 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199265252] [2021-06-05 03:43:10,492 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199265252] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:10,492 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:10,492 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:10,492 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253423221] [2021-06-05 03:43:10,493 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:10,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:10,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:10,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:10,493 INFO L87 Difference]: Start difference. First operand 5131 states and 24385 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:10,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:10,607 INFO L93 Difference]: Finished difference Result 10356 states and 46275 transitions. [2021-06-05 03:43:10,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:10,607 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:10,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:10,631 INFO L225 Difference]: With dead ends: 10356 [2021-06-05 03:43:10,632 INFO L226 Difference]: Without dead ends: 9879 [2021-06-05 03:43:10,632 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 145.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:10,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9879 states. [2021-06-05 03:43:10,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9879 to 5179. [2021-06-05 03:43:10,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.743337195828505) internal successors, (24561), 5178 states have internal predecessors, (24561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:10,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24561 transitions. [2021-06-05 03:43:10,847 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24561 transitions. Word has length 29 [2021-06-05 03:43:10,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:10,847 INFO L482 AbstractCegarLoop]: Abstraction has 5179 states and 24561 transitions. [2021-06-05 03:43:10,847 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:10,847 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24561 transitions. [2021-06-05 03:43:10,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:10,856 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:10,856 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:10,856 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable513 [2021-06-05 03:43:10,856 INFO L430 AbstractCegarLoop]: === Iteration 515 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:10,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:10,856 INFO L82 PathProgramCache]: Analyzing trace with hash 1681049833, now seen corresponding path program 510 times [2021-06-05 03:43:10,856 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:10,856 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604699626] [2021-06-05 03:43:10,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:10,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:10,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:10,979 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:10,979 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604699626] [2021-06-05 03:43:10,979 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604699626] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:10,979 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:10,979 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:10,979 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301029043] [2021-06-05 03:43:10,979 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:10,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:10,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:10,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:10,979 INFO L87 Difference]: Start difference. First operand 5179 states and 24561 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:11,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:11,076 INFO L93 Difference]: Finished difference Result 10294 states and 45958 transitions. [2021-06-05 03:43:11,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:11,076 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:11,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:11,100 INFO L225 Difference]: With dead ends: 10294 [2021-06-05 03:43:11,100 INFO L226 Difference]: Without dead ends: 9815 [2021-06-05 03:43:11,100 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 129.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:11,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9815 states. [2021-06-05 03:43:11,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9815 to 5115. [2021-06-05 03:43:11,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5115 states, 5114 states have (on average 4.757332811888932) internal successors, (24329), 5114 states have internal predecessors, (24329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:11,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5115 states to 5115 states and 24329 transitions. [2021-06-05 03:43:11,313 INFO L78 Accepts]: Start accepts. Automaton has 5115 states and 24329 transitions. Word has length 29 [2021-06-05 03:43:11,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:11,313 INFO L482 AbstractCegarLoop]: Abstraction has 5115 states and 24329 transitions. [2021-06-05 03:43:11,313 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:11,313 INFO L276 IsEmpty]: Start isEmpty. Operand 5115 states and 24329 transitions. [2021-06-05 03:43:11,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:11,322 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:11,322 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:11,322 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable514 [2021-06-05 03:43:11,322 INFO L430 AbstractCegarLoop]: === Iteration 516 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:11,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:11,322 INFO L82 PathProgramCache]: Analyzing trace with hash -1388555095, now seen corresponding path program 511 times [2021-06-05 03:43:11,322 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:11,322 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855691647] [2021-06-05 03:43:11,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:11,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:11,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:11,436 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:11,436 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855691647] [2021-06-05 03:43:11,436 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855691647] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:11,436 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:11,436 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:11,436 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463647882] [2021-06-05 03:43:11,436 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:11,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:11,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:11,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:11,437 INFO L87 Difference]: Start difference. First operand 5115 states and 24329 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:11,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:11,550 INFO L93 Difference]: Finished difference Result 10402 states and 46546 transitions. [2021-06-05 03:43:11,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:11,550 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:11,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:11,575 INFO L225 Difference]: With dead ends: 10402 [2021-06-05 03:43:11,575 INFO L226 Difference]: Without dead ends: 9987 [2021-06-05 03:43:11,575 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 138.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:11,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9987 states. [2021-06-05 03:43:11,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9987 to 5187. [2021-06-05 03:43:11,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5187 states, 5186 states have (on average 4.749132279213266) internal successors, (24629), 5186 states have internal predecessors, (24629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:11,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 5187 states and 24629 transitions. [2021-06-05 03:43:11,793 INFO L78 Accepts]: Start accepts. Automaton has 5187 states and 24629 transitions. Word has length 29 [2021-06-05 03:43:11,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:11,793 INFO L482 AbstractCegarLoop]: Abstraction has 5187 states and 24629 transitions. [2021-06-05 03:43:11,793 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:11,793 INFO L276 IsEmpty]: Start isEmpty. Operand 5187 states and 24629 transitions. [2021-06-05 03:43:11,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:11,802 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:11,802 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:11,802 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable515 [2021-06-05 03:43:11,802 INFO L430 AbstractCegarLoop]: === Iteration 517 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:11,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:11,802 INFO L82 PathProgramCache]: Analyzing trace with hash -671892149, now seen corresponding path program 512 times [2021-06-05 03:43:11,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:11,802 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791137579] [2021-06-05 03:43:11,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:11,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:11,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:11,918 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:11,918 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791137579] [2021-06-05 03:43:11,918 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791137579] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:11,918 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:11,918 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:11,919 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91452085] [2021-06-05 03:43:11,919 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:11,919 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:11,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:11,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:11,919 INFO L87 Difference]: Start difference. First operand 5187 states and 24629 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:12,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:12,028 INFO L93 Difference]: Finished difference Result 10464 states and 46767 transitions. [2021-06-05 03:43:12,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:12,028 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:12,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:12,052 INFO L225 Difference]: With dead ends: 10464 [2021-06-05 03:43:12,052 INFO L226 Difference]: Without dead ends: 9939 [2021-06-05 03:43:12,053 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 141.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:12,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9939 states. [2021-06-05 03:43:12,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9939 to 5139. [2021-06-05 03:43:12,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5139 states, 5138 states have (on average 4.754573764110549) internal successors, (24429), 5138 states have internal predecessors, (24429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:12,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5139 states to 5139 states and 24429 transitions. [2021-06-05 03:43:12,270 INFO L78 Accepts]: Start accepts. Automaton has 5139 states and 24429 transitions. Word has length 29 [2021-06-05 03:43:12,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:12,270 INFO L482 AbstractCegarLoop]: Abstraction has 5139 states and 24429 transitions. [2021-06-05 03:43:12,270 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:12,270 INFO L276 IsEmpty]: Start isEmpty. Operand 5139 states and 24429 transitions. [2021-06-05 03:43:12,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:12,279 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:12,279 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:12,279 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable516 [2021-06-05 03:43:12,279 INFO L430 AbstractCegarLoop]: === Iteration 518 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:12,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:12,279 INFO L82 PathProgramCache]: Analyzing trace with hash -998593367, now seen corresponding path program 513 times [2021-06-05 03:43:12,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:12,279 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871241469] [2021-06-05 03:43:12,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:12,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:12,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:12,381 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:12,381 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871241469] [2021-06-05 03:43:12,381 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871241469] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:12,381 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:12,381 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:12,381 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635452868] [2021-06-05 03:43:12,381 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:12,381 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:12,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:12,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:12,382 INFO L87 Difference]: Start difference. First operand 5139 states and 24429 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:12,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:12,490 INFO L93 Difference]: Finished difference Result 10396 states and 46505 transitions. [2021-06-05 03:43:12,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:12,491 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:12,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:12,516 INFO L225 Difference]: With dead ends: 10396 [2021-06-05 03:43:12,516 INFO L226 Difference]: Without dead ends: 9981 [2021-06-05 03:43:12,516 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 127.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:12,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9981 states. [2021-06-05 03:43:12,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9981 to 5187. [2021-06-05 03:43:12,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5187 states, 5186 states have (on average 4.744504435017355) internal successors, (24605), 5186 states have internal predecessors, (24605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:12,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 5187 states and 24605 transitions. [2021-06-05 03:43:12,731 INFO L78 Accepts]: Start accepts. Automaton has 5187 states and 24605 transitions. Word has length 29 [2021-06-05 03:43:12,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:12,731 INFO L482 AbstractCegarLoop]: Abstraction has 5187 states and 24605 transitions. [2021-06-05 03:43:12,732 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:12,732 INFO L276 IsEmpty]: Start isEmpty. Operand 5187 states and 24605 transitions. [2021-06-05 03:43:12,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:12,740 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:12,740 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:12,740 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable517 [2021-06-05 03:43:12,740 INFO L430 AbstractCegarLoop]: === Iteration 519 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:12,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:12,740 INFO L82 PathProgramCache]: Analyzing trace with hash -1853982615, now seen corresponding path program 514 times [2021-06-05 03:43:12,740 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:12,740 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590529863] [2021-06-05 03:43:12,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:12,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:12,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:12,841 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:12,841 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590529863] [2021-06-05 03:43:12,841 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590529863] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:12,841 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:12,841 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:12,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516253185] [2021-06-05 03:43:12,841 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:12,842 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:12,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:12,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:12,842 INFO L87 Difference]: Start difference. First operand 5187 states and 24605 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:12,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:12,960 INFO L93 Difference]: Finished difference Result 10452 states and 46709 transitions. [2021-06-05 03:43:12,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:12,960 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:12,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:12,986 INFO L225 Difference]: With dead ends: 10452 [2021-06-05 03:43:12,986 INFO L226 Difference]: Without dead ends: 9933 [2021-06-05 03:43:12,986 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 126.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:13,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9933 states. [2021-06-05 03:43:13,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9933 to 5139. [2021-06-05 03:43:13,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5139 states, 5138 states have (on average 4.749902685869988) internal successors, (24405), 5138 states have internal predecessors, (24405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:13,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5139 states to 5139 states and 24405 transitions. [2021-06-05 03:43:13,205 INFO L78 Accepts]: Start accepts. Automaton has 5139 states and 24405 transitions. Word has length 29 [2021-06-05 03:43:13,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:13,205 INFO L482 AbstractCegarLoop]: Abstraction has 5139 states and 24405 transitions. [2021-06-05 03:43:13,205 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:13,206 INFO L276 IsEmpty]: Start isEmpty. Operand 5139 states and 24405 transitions. [2021-06-05 03:43:13,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:13,214 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:13,214 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:13,214 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable518 [2021-06-05 03:43:13,214 INFO L430 AbstractCegarLoop]: === Iteration 520 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:13,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:13,215 INFO L82 PathProgramCache]: Analyzing trace with hash 1942712459, now seen corresponding path program 515 times [2021-06-05 03:43:13,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:13,215 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101528633] [2021-06-05 03:43:13,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:13,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:13,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:13,315 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:13,315 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101528633] [2021-06-05 03:43:13,315 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101528633] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:13,315 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:13,315 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:13,315 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657170709] [2021-06-05 03:43:13,316 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:13,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:13,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:13,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:13,316 INFO L87 Difference]: Start difference. First operand 5139 states and 24405 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:13,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:13,427 INFO L93 Difference]: Finished difference Result 10548 states and 47159 transitions. [2021-06-05 03:43:13,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:13,427 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:13,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:13,453 INFO L225 Difference]: With dead ends: 10548 [2021-06-05 03:43:13,453 INFO L226 Difference]: Without dead ends: 10071 [2021-06-05 03:43:13,453 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 126.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:13,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10071 states. [2021-06-05 03:43:13,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10071 to 5215. [2021-06-05 03:43:13,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5215 states, 5214 states have (on average 4.73590333716916) internal successors, (24693), 5214 states have internal predecessors, (24693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:13,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5215 states to 5215 states and 24693 transitions. [2021-06-05 03:43:13,674 INFO L78 Accepts]: Start accepts. Automaton has 5215 states and 24693 transitions. Word has length 29 [2021-06-05 03:43:13,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:13,674 INFO L482 AbstractCegarLoop]: Abstraction has 5215 states and 24693 transitions. [2021-06-05 03:43:13,674 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:13,674 INFO L276 IsEmpty]: Start isEmpty. Operand 5215 states and 24693 transitions. [2021-06-05 03:43:13,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:13,684 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:13,684 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:13,684 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable519 [2021-06-05 03:43:13,684 INFO L430 AbstractCegarLoop]: === Iteration 521 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:13,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:13,684 INFO L82 PathProgramCache]: Analyzing trace with hash 1201760361, now seen corresponding path program 516 times [2021-06-05 03:43:13,684 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:13,684 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142052471] [2021-06-05 03:43:13,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:13,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:13,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:13,786 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:13,786 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142052471] [2021-06-05 03:43:13,786 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142052471] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:13,786 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:13,786 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:13,786 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789379163] [2021-06-05 03:43:13,786 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:13,786 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:13,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:13,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:13,787 INFO L87 Difference]: Start difference. First operand 5215 states and 24693 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:13,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:13,900 INFO L93 Difference]: Finished difference Result 10542 states and 47066 transitions. [2021-06-05 03:43:13,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:13,900 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:13,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:13,925 INFO L225 Difference]: With dead ends: 10542 [2021-06-05 03:43:13,925 INFO L226 Difference]: Without dead ends: 9971 [2021-06-05 03:43:13,925 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:14,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9971 states. [2021-06-05 03:43:14,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9971 to 5115. [2021-06-05 03:43:14,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5115 states, 5114 states have (on average 4.75576847868596) internal successors, (24321), 5114 states have internal predecessors, (24321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:14,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5115 states to 5115 states and 24321 transitions. [2021-06-05 03:43:14,141 INFO L78 Accepts]: Start accepts. Automaton has 5115 states and 24321 transitions. Word has length 29 [2021-06-05 03:43:14,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:14,141 INFO L482 AbstractCegarLoop]: Abstraction has 5115 states and 24321 transitions. [2021-06-05 03:43:14,141 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:14,141 INFO L276 IsEmpty]: Start isEmpty. Operand 5115 states and 24321 transitions. [2021-06-05 03:43:14,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:14,149 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:14,150 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:14,150 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable520 [2021-06-05 03:43:14,150 INFO L430 AbstractCegarLoop]: === Iteration 522 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:14,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:14,150 INFO L82 PathProgramCache]: Analyzing trace with hash 2117025931, now seen corresponding path program 517 times [2021-06-05 03:43:14,150 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:14,150 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99705664] [2021-06-05 03:43:14,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:14,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:14,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:14,254 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:14,254 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99705664] [2021-06-05 03:43:14,254 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99705664] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:14,254 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:14,254 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:14,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413316722] [2021-06-05 03:43:14,254 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:14,254 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:14,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:14,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:14,254 INFO L87 Difference]: Start difference. First operand 5115 states and 24321 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:14,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:14,367 INFO L93 Difference]: Finished difference Result 10210 states and 45656 transitions. [2021-06-05 03:43:14,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:14,367 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:14,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:14,391 INFO L225 Difference]: With dead ends: 10210 [2021-06-05 03:43:14,391 INFO L226 Difference]: Without dead ends: 9795 [2021-06-05 03:43:14,391 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:14,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9795 states. [2021-06-05 03:43:14,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9795 to 5163. [2021-06-05 03:43:14,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5163 states, 5162 states have (on average 4.748740798140256) internal successors, (24513), 5162 states have internal predecessors, (24513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:14,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5163 states to 5163 states and 24513 transitions. [2021-06-05 03:43:14,605 INFO L78 Accepts]: Start accepts. Automaton has 5163 states and 24513 transitions. Word has length 29 [2021-06-05 03:43:14,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:14,605 INFO L482 AbstractCegarLoop]: Abstraction has 5163 states and 24513 transitions. [2021-06-05 03:43:14,605 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:14,605 INFO L276 IsEmpty]: Start isEmpty. Operand 5163 states and 24513 transitions. [2021-06-05 03:43:14,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:14,614 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:14,614 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:14,614 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable521 [2021-06-05 03:43:14,614 INFO L430 AbstractCegarLoop]: === Iteration 523 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:14,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:14,614 INFO L82 PathProgramCache]: Analyzing trace with hash -1766533369, now seen corresponding path program 518 times [2021-06-05 03:43:14,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:14,614 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796524358] [2021-06-05 03:43:14,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:14,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:14,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:14,719 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:14,719 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796524358] [2021-06-05 03:43:14,719 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796524358] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:14,719 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:14,719 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:14,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992787167] [2021-06-05 03:43:14,719 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:14,719 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:14,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:14,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:14,719 INFO L87 Difference]: Start difference. First operand 5163 states and 24513 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:14,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:14,810 INFO L93 Difference]: Finished difference Result 10210 states and 45624 transitions. [2021-06-05 03:43:14,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:14,810 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:14,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:14,834 INFO L225 Difference]: With dead ends: 10210 [2021-06-05 03:43:14,835 INFO L226 Difference]: Without dead ends: 9763 [2021-06-05 03:43:14,835 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 111.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:14,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9763 states. [2021-06-05 03:43:15,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9763 to 5131. [2021-06-05 03:43:15,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.753411306042885) internal successors, (24385), 5130 states have internal predecessors, (24385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:15,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24385 transitions. [2021-06-05 03:43:15,047 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24385 transitions. Word has length 29 [2021-06-05 03:43:15,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:15,047 INFO L482 AbstractCegarLoop]: Abstraction has 5131 states and 24385 transitions. [2021-06-05 03:43:15,048 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:15,048 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24385 transitions. [2021-06-05 03:43:15,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:15,056 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:15,056 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:15,056 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable522 [2021-06-05 03:43:15,056 INFO L430 AbstractCegarLoop]: === Iteration 524 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:15,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:15,056 INFO L82 PathProgramCache]: Analyzing trace with hash 84013289, now seen corresponding path program 519 times [2021-06-05 03:43:15,056 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:15,056 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469585972] [2021-06-05 03:43:15,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:15,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:15,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:15,159 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:15,159 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469585972] [2021-06-05 03:43:15,160 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469585972] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:15,160 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:15,160 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:15,160 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824300897] [2021-06-05 03:43:15,160 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:15,160 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:15,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:15,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:15,160 INFO L87 Difference]: Start difference. First operand 5131 states and 24385 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:15,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:15,274 INFO L93 Difference]: Finished difference Result 10282 states and 45972 transitions. [2021-06-05 03:43:15,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:15,274 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:15,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:15,299 INFO L225 Difference]: With dead ends: 10282 [2021-06-05 03:43:15,299 INFO L226 Difference]: Without dead ends: 9867 [2021-06-05 03:43:15,299 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 127.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:15,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9867 states. [2021-06-05 03:43:15,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9867 to 5179. [2021-06-05 03:43:15,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.743337195828505) internal successors, (24561), 5178 states have internal predecessors, (24561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:15,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24561 transitions. [2021-06-05 03:43:15,513 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24561 transitions. Word has length 29 [2021-06-05 03:43:15,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:15,513 INFO L482 AbstractCegarLoop]: Abstraction has 5179 states and 24561 transitions. [2021-06-05 03:43:15,513 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:15,513 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24561 transitions. [2021-06-05 03:43:15,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:15,522 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:15,522 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:15,522 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable523 [2021-06-05 03:43:15,522 INFO L430 AbstractCegarLoop]: === Iteration 525 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:15,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:15,522 INFO L82 PathProgramCache]: Analyzing trace with hash -144380853, now seen corresponding path program 520 times [2021-06-05 03:43:15,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:15,522 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838202475] [2021-06-05 03:43:15,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:15,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:15,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:15,625 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:15,625 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838202475] [2021-06-05 03:43:15,625 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838202475] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:15,625 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:15,625 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:15,625 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879156740] [2021-06-05 03:43:15,625 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:15,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:15,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:15,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:15,626 INFO L87 Difference]: Start difference. First operand 5179 states and 24561 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:15,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:15,738 INFO L93 Difference]: Finished difference Result 10338 states and 46176 transitions. [2021-06-05 03:43:15,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:15,738 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:15,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:15,762 INFO L225 Difference]: With dead ends: 10338 [2021-06-05 03:43:15,762 INFO L226 Difference]: Without dead ends: 9819 [2021-06-05 03:43:15,762 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 127.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:15,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9819 states. [2021-06-05 03:43:15,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9819 to 5131. [2021-06-05 03:43:15,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.750292397660819) internal successors, (24369), 5130 states have internal predecessors, (24369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:15,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24369 transitions. [2021-06-05 03:43:15,977 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24369 transitions. Word has length 29 [2021-06-05 03:43:15,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:15,977 INFO L482 AbstractCegarLoop]: Abstraction has 5131 states and 24369 transitions. [2021-06-05 03:43:15,977 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:15,977 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24369 transitions. [2021-06-05 03:43:15,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:15,985 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:15,985 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:15,985 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable524 [2021-06-05 03:43:15,985 INFO L430 AbstractCegarLoop]: === Iteration 526 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:15,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:15,986 INFO L82 PathProgramCache]: Analyzing trace with hash -1612541787, now seen corresponding path program 521 times [2021-06-05 03:43:15,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:15,986 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877103135] [2021-06-05 03:43:15,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:15,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:16,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:16,102 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:16,102 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877103135] [2021-06-05 03:43:16,102 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877103135] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:16,102 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:16,102 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:16,102 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799360691] [2021-06-05 03:43:16,102 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:16,103 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:16,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:16,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:16,103 INFO L87 Difference]: Start difference. First operand 5131 states and 24369 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:16,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:16,202 INFO L93 Difference]: Finished difference Result 10282 states and 45956 transitions. [2021-06-05 03:43:16,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:16,203 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:16,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:16,227 INFO L225 Difference]: With dead ends: 10282 [2021-06-05 03:43:16,227 INFO L226 Difference]: Without dead ends: 9867 [2021-06-05 03:43:16,227 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 124.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:16,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9867 states. [2021-06-05 03:43:16,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9867 to 5179. [2021-06-05 03:43:16,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.740247199691001) internal successors, (24545), 5178 states have internal predecessors, (24545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:16,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24545 transitions. [2021-06-05 03:43:16,445 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24545 transitions. Word has length 29 [2021-06-05 03:43:16,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:16,445 INFO L482 AbstractCegarLoop]: Abstraction has 5179 states and 24545 transitions. [2021-06-05 03:43:16,445 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:16,445 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24545 transitions. [2021-06-05 03:43:16,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:16,454 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:16,454 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:16,454 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable525 [2021-06-05 03:43:16,454 INFO L430 AbstractCegarLoop]: === Iteration 527 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:16,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:16,454 INFO L82 PathProgramCache]: Analyzing trace with hash -1819349753, now seen corresponding path program 522 times [2021-06-05 03:43:16,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:16,454 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336682488] [2021-06-05 03:43:16,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:16,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:16,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:16,594 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:16,594 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336682488] [2021-06-05 03:43:16,594 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336682488] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:16,594 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:16,594 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:16,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64787950] [2021-06-05 03:43:16,595 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:16,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:16,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:16,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:16,595 INFO L87 Difference]: Start difference. First operand 5179 states and 24545 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:16,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:16,761 INFO L93 Difference]: Finished difference Result 10338 states and 46160 transitions. [2021-06-05 03:43:16,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:16,762 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:16,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:16,792 INFO L225 Difference]: With dead ends: 10338 [2021-06-05 03:43:16,793 INFO L226 Difference]: Without dead ends: 9803 [2021-06-05 03:43:16,793 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 167.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:16,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9803 states. [2021-06-05 03:43:17,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9803 to 5115. [2021-06-05 03:43:17,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5115 states, 5114 states have (on average 4.754204145482988) internal successors, (24313), 5114 states have internal predecessors, (24313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:17,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5115 states to 5115 states and 24313 transitions. [2021-06-05 03:43:17,022 INFO L78 Accepts]: Start accepts. Automaton has 5115 states and 24313 transitions. Word has length 29 [2021-06-05 03:43:17,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:17,023 INFO L482 AbstractCegarLoop]: Abstraction has 5115 states and 24313 transitions. [2021-06-05 03:43:17,023 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:17,023 INFO L276 IsEmpty]: Start isEmpty. Operand 5115 states and 24313 transitions. [2021-06-05 03:43:17,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:17,031 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:17,031 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:17,031 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable526 [2021-06-05 03:43:17,031 INFO L430 AbstractCegarLoop]: === Iteration 528 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:17,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:17,031 INFO L82 PathProgramCache]: Analyzing trace with hash 208194853, now seen corresponding path program 523 times [2021-06-05 03:43:17,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:17,032 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225573645] [2021-06-05 03:43:17,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:17,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:17,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:17,152 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:17,152 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225573645] [2021-06-05 03:43:17,152 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225573645] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:17,152 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:17,152 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:17,152 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466267730] [2021-06-05 03:43:17,152 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:17,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:17,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:17,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:17,153 INFO L87 Difference]: Start difference. First operand 5115 states and 24313 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:17,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:17,266 INFO L93 Difference]: Finished difference Result 10464 states and 46799 transitions. [2021-06-05 03:43:17,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:17,267 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:17,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:17,291 INFO L225 Difference]: With dead ends: 10464 [2021-06-05 03:43:17,291 INFO L226 Difference]: Without dead ends: 9987 [2021-06-05 03:43:17,292 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 145.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:17,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9987 states. [2021-06-05 03:43:17,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9987 to 5187. [2021-06-05 03:43:17,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5187 states, 5186 states have (on average 4.7460470497493255) internal successors, (24613), 5186 states have internal predecessors, (24613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:17,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 5187 states and 24613 transitions. [2021-06-05 03:43:17,544 INFO L78 Accepts]: Start accepts. Automaton has 5187 states and 24613 transitions. Word has length 29 [2021-06-05 03:43:17,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:17,544 INFO L482 AbstractCegarLoop]: Abstraction has 5187 states and 24613 transitions. [2021-06-05 03:43:17,544 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:17,544 INFO L276 IsEmpty]: Start isEmpty. Operand 5187 states and 24613 transitions. [2021-06-05 03:43:17,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:17,553 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:17,553 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:17,553 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable527 [2021-06-05 03:43:17,553 INFO L430 AbstractCegarLoop]: === Iteration 529 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:17,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:17,554 INFO L82 PathProgramCache]: Analyzing trace with hash 1289257479, now seen corresponding path program 524 times [2021-06-05 03:43:17,554 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:17,554 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853788997] [2021-06-05 03:43:17,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:17,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:17,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:17,671 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:17,671 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853788997] [2021-06-05 03:43:17,672 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853788997] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:17,672 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:17,672 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:17,672 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474011218] [2021-06-05 03:43:17,672 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:17,672 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:17,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:17,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:17,672 INFO L87 Difference]: Start difference. First operand 5187 states and 24613 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:17,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:17,764 INFO L93 Difference]: Finished difference Result 10402 states and 46482 transitions. [2021-06-05 03:43:17,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:17,764 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:17,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:17,788 INFO L225 Difference]: With dead ends: 10402 [2021-06-05 03:43:17,789 INFO L226 Difference]: Without dead ends: 9939 [2021-06-05 03:43:17,789 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 125.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:17,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9939 states. [2021-06-05 03:43:17,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9939 to 5139. [2021-06-05 03:43:17,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5139 states, 5138 states have (on average 4.751459711950175) internal successors, (24413), 5138 states have internal predecessors, (24413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:18,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5139 states to 5139 states and 24413 transitions. [2021-06-05 03:43:18,012 INFO L78 Accepts]: Start accepts. Automaton has 5139 states and 24413 transitions. Word has length 29 [2021-06-05 03:43:18,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:18,012 INFO L482 AbstractCegarLoop]: Abstraction has 5139 states and 24413 transitions. [2021-06-05 03:43:18,012 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:18,012 INFO L276 IsEmpty]: Start isEmpty. Operand 5139 states and 24413 transitions. [2021-06-05 03:43:18,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:18,021 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:18,021 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:18,021 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable528 [2021-06-05 03:43:18,021 INFO L430 AbstractCegarLoop]: === Iteration 530 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:18,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:18,021 INFO L82 PathProgramCache]: Analyzing trace with hash -965764857, now seen corresponding path program 525 times [2021-06-05 03:43:18,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:18,021 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086923797] [2021-06-05 03:43:18,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:18,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:18,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:18,130 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:18,130 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086923797] [2021-06-05 03:43:18,130 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086923797] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:18,130 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:18,130 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:18,130 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004418070] [2021-06-05 03:43:18,131 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:18,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:18,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:18,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:18,131 INFO L87 Difference]: Start difference. First operand 5139 states and 24413 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:18,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:18,241 INFO L93 Difference]: Finished difference Result 10548 states and 47167 transitions. [2021-06-05 03:43:18,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:18,242 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:18,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:18,266 INFO L225 Difference]: With dead ends: 10548 [2021-06-05 03:43:18,267 INFO L226 Difference]: Without dead ends: 10071 [2021-06-05 03:43:18,267 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 133.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:18,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10071 states. [2021-06-05 03:43:18,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10071 to 5215. [2021-06-05 03:43:18,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5215 states, 5214 states have (on average 4.737437667817415) internal successors, (24701), 5214 states have internal predecessors, (24701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:18,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5215 states to 5215 states and 24701 transitions. [2021-06-05 03:43:18,486 INFO L78 Accepts]: Start accepts. Automaton has 5215 states and 24701 transitions. Word has length 29 [2021-06-05 03:43:18,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:18,486 INFO L482 AbstractCegarLoop]: Abstraction has 5215 states and 24701 transitions. [2021-06-05 03:43:18,486 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:18,486 INFO L276 IsEmpty]: Start isEmpty. Operand 5215 states and 24701 transitions. [2021-06-05 03:43:18,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:18,494 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:18,495 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:18,495 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable529 [2021-06-05 03:43:18,495 INFO L430 AbstractCegarLoop]: === Iteration 531 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:18,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:18,495 INFO L82 PathProgramCache]: Analyzing trace with hash -916197113, now seen corresponding path program 526 times [2021-06-05 03:43:18,495 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:18,495 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659968099] [2021-06-05 03:43:18,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:18,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:18,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:18,622 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:18,622 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659968099] [2021-06-05 03:43:18,622 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659968099] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:18,622 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:18,622 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:18,622 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356248083] [2021-06-05 03:43:18,622 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:18,622 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:18,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:18,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:18,623 INFO L87 Difference]: Start difference. First operand 5215 states and 24701 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:18,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:18,738 INFO L93 Difference]: Finished difference Result 10542 states and 47074 transitions. [2021-06-05 03:43:18,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:18,739 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:18,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:18,764 INFO L225 Difference]: With dead ends: 10542 [2021-06-05 03:43:18,765 INFO L226 Difference]: Without dead ends: 9995 [2021-06-05 03:43:18,765 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 147.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:18,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9995 states. [2021-06-05 03:43:18,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9995 to 5139. [2021-06-05 03:43:18,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5139 states, 5138 states have (on average 4.746788633709615) internal successors, (24389), 5138 states have internal predecessors, (24389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:18,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5139 states to 5139 states and 24389 transitions. [2021-06-05 03:43:18,983 INFO L78 Accepts]: Start accepts. Automaton has 5139 states and 24389 transitions. Word has length 29 [2021-06-05 03:43:18,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:18,983 INFO L482 AbstractCegarLoop]: Abstraction has 5139 states and 24389 transitions. [2021-06-05 03:43:18,983 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:18,983 INFO L276 IsEmpty]: Start isEmpty. Operand 5139 states and 24389 transitions. [2021-06-05 03:43:18,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:18,992 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:18,992 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:18,992 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable530 [2021-06-05 03:43:18,992 INFO L430 AbstractCegarLoop]: === Iteration 532 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:18,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:18,992 INFO L82 PathProgramCache]: Analyzing trace with hash -577759895, now seen corresponding path program 527 times [2021-06-05 03:43:18,992 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:18,992 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373870839] [2021-06-05 03:43:18,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:18,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:19,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:19,114 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:19,114 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373870839] [2021-06-05 03:43:19,114 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373870839] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:19,114 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:19,114 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:19,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727033763] [2021-06-05 03:43:19,115 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:19,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:19,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:19,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:19,115 INFO L87 Difference]: Start difference. First operand 5139 states and 24389 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:19,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:19,221 INFO L93 Difference]: Finished difference Result 10396 states and 46465 transitions. [2021-06-05 03:43:19,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:19,221 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:19,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:19,246 INFO L225 Difference]: With dead ends: 10396 [2021-06-05 03:43:19,246 INFO L226 Difference]: Without dead ends: 9981 [2021-06-05 03:43:19,246 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 129.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:19,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9981 states. [2021-06-05 03:43:19,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9981 to 5187. [2021-06-05 03:43:19,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5187 states, 5186 states have (on average 4.736791361357501) internal successors, (24565), 5186 states have internal predecessors, (24565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:19,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 5187 states and 24565 transitions. [2021-06-05 03:43:19,464 INFO L78 Accepts]: Start accepts. Automaton has 5187 states and 24565 transitions. Word has length 29 [2021-06-05 03:43:19,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:19,464 INFO L482 AbstractCegarLoop]: Abstraction has 5187 states and 24565 transitions. [2021-06-05 03:43:19,464 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:19,464 INFO L276 IsEmpty]: Start isEmpty. Operand 5187 states and 24565 transitions. [2021-06-05 03:43:19,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:19,473 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:19,473 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:19,473 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable531 [2021-06-05 03:43:19,473 INFO L430 AbstractCegarLoop]: === Iteration 533 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:19,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:19,473 INFO L82 PathProgramCache]: Analyzing trace with hash 1601127751, now seen corresponding path program 528 times [2021-06-05 03:43:19,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:19,473 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487361628] [2021-06-05 03:43:19,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:19,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:19,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:19,596 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:19,596 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487361628] [2021-06-05 03:43:19,596 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487361628] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:19,596 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:19,596 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:19,596 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942860104] [2021-06-05 03:43:19,597 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:19,597 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:19,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:19,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:19,597 INFO L87 Difference]: Start difference. First operand 5187 states and 24565 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:19,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:19,716 INFO L93 Difference]: Finished difference Result 10452 states and 46669 transitions. [2021-06-05 03:43:19,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:19,716 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:19,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:19,741 INFO L225 Difference]: With dead ends: 10452 [2021-06-05 03:43:19,741 INFO L226 Difference]: Without dead ends: 9901 [2021-06-05 03:43:19,741 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 148.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:19,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9901 states. [2021-06-05 03:43:19,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9901 to 5107. [2021-06-05 03:43:19,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5107 states, 5106 states have (on average 4.756952604778692) internal successors, (24289), 5106 states have internal predecessors, (24289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:19,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5107 states to 5107 states and 24289 transitions. [2021-06-05 03:43:19,953 INFO L78 Accepts]: Start accepts. Automaton has 5107 states and 24289 transitions. Word has length 29 [2021-06-05 03:43:19,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:19,953 INFO L482 AbstractCegarLoop]: Abstraction has 5107 states and 24289 transitions. [2021-06-05 03:43:19,953 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:19,953 INFO L276 IsEmpty]: Start isEmpty. Operand 5107 states and 24289 transitions. [2021-06-05 03:43:19,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:19,961 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:19,961 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:19,961 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable532 [2021-06-05 03:43:19,961 INFO L430 AbstractCegarLoop]: === Iteration 534 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:19,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:19,962 INFO L82 PathProgramCache]: Analyzing trace with hash 2142791691, now seen corresponding path program 529 times [2021-06-05 03:43:19,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:19,962 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199694946] [2021-06-05 03:43:19,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:19,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:20,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:20,081 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:20,081 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199694946] [2021-06-05 03:43:20,081 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199694946] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:20,081 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:20,081 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:20,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445366662] [2021-06-05 03:43:20,081 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:20,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:20,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:20,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:20,082 INFO L87 Difference]: Start difference. First operand 5107 states and 24289 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:20,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:20,194 INFO L93 Difference]: Finished difference Result 10576 states and 47389 transitions. [2021-06-05 03:43:20,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:20,194 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:20,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:20,219 INFO L225 Difference]: With dead ends: 10576 [2021-06-05 03:43:20,219 INFO L226 Difference]: Without dead ends: 10161 [2021-06-05 03:43:20,219 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 143.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:20,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10161 states. [2021-06-05 03:43:20,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10161 to 5191. [2021-06-05 03:43:20,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.750867052023121) internal successors, (24657), 5190 states have internal predecessors, (24657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:20,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24657 transitions. [2021-06-05 03:43:20,442 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24657 transitions. Word has length 29 [2021-06-05 03:43:20,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:20,442 INFO L482 AbstractCegarLoop]: Abstraction has 5191 states and 24657 transitions. [2021-06-05 03:43:20,442 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:20,442 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24657 transitions. [2021-06-05 03:43:20,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:20,451 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:20,451 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:20,451 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable533 [2021-06-05 03:43:20,451 INFO L430 AbstractCegarLoop]: === Iteration 535 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:20,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:20,451 INFO L82 PathProgramCache]: Analyzing trace with hash -1435512659, now seen corresponding path program 530 times [2021-06-05 03:43:20,452 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:20,452 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525894453] [2021-06-05 03:43:20,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:20,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:20,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:20,573 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:20,574 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525894453] [2021-06-05 03:43:20,574 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525894453] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:20,574 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:20,574 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:20,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937614527] [2021-06-05 03:43:20,574 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:20,574 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:20,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:20,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:20,574 INFO L87 Difference]: Start difference. First operand 5191 states and 24657 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:20,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:20,684 INFO L93 Difference]: Finished difference Result 10638 states and 47610 transitions. [2021-06-05 03:43:20,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:20,684 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:20,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:20,709 INFO L225 Difference]: With dead ends: 10638 [2021-06-05 03:43:20,709 INFO L226 Difference]: Without dead ends: 10113 [2021-06-05 03:43:20,709 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 146.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:20,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10113 states. [2021-06-05 03:43:20,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10113 to 5143. [2021-06-05 03:43:20,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.756320497860755) internal successors, (24457), 5142 states have internal predecessors, (24457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:20,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24457 transitions. [2021-06-05 03:43:20,928 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24457 transitions. Word has length 29 [2021-06-05 03:43:20,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:20,928 INFO L482 AbstractCegarLoop]: Abstraction has 5143 states and 24457 transitions. [2021-06-05 03:43:20,928 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:20,928 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24457 transitions. [2021-06-05 03:43:20,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:20,937 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:20,937 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:20,937 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable534 [2021-06-05 03:43:20,937 INFO L430 AbstractCegarLoop]: === Iteration 536 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:20,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:20,937 INFO L82 PathProgramCache]: Analyzing trace with hash -1059205109, now seen corresponding path program 531 times [2021-06-05 03:43:20,937 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:20,937 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885716101] [2021-06-05 03:43:20,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:20,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:21,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:21,062 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:21,062 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885716101] [2021-06-05 03:43:21,062 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885716101] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:21,062 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:21,062 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:21,062 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825840674] [2021-06-05 03:43:21,062 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:21,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:21,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:21,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:21,063 INFO L87 Difference]: Start difference. First operand 5143 states and 24457 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:21,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:21,176 INFO L93 Difference]: Finished difference Result 10574 states and 47360 transitions. [2021-06-05 03:43:21,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:21,176 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:21,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:21,201 INFO L225 Difference]: With dead ends: 10574 [2021-06-05 03:43:21,201 INFO L226 Difference]: Without dead ends: 10159 [2021-06-05 03:43:21,201 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 149.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:21,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10159 states. [2021-06-05 03:43:21,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10159 to 5191. [2021-06-05 03:43:21,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.746242774566474) internal successors, (24633), 5190 states have internal predecessors, (24633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:21,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24633 transitions. [2021-06-05 03:43:21,417 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24633 transitions. Word has length 29 [2021-06-05 03:43:21,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:21,418 INFO L482 AbstractCegarLoop]: Abstraction has 5191 states and 24633 transitions. [2021-06-05 03:43:21,418 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:21,418 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24633 transitions. [2021-06-05 03:43:21,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:21,426 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:21,426 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:21,426 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable535 [2021-06-05 03:43:21,426 INFO L430 AbstractCegarLoop]: === Iteration 537 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:21,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:21,427 INFO L82 PathProgramCache]: Analyzing trace with hash -29639733, now seen corresponding path program 532 times [2021-06-05 03:43:21,427 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:21,427 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848781662] [2021-06-05 03:43:21,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:21,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:21,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:21,562 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:21,562 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848781662] [2021-06-05 03:43:21,562 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848781662] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:21,562 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:21,562 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:21,562 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138447318] [2021-06-05 03:43:21,562 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:21,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:21,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:21,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:21,563 INFO L87 Difference]: Start difference. First operand 5191 states and 24633 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:21,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:21,675 INFO L93 Difference]: Finished difference Result 10634 states and 47576 transitions. [2021-06-05 03:43:21,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:21,676 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:21,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:21,701 INFO L225 Difference]: With dead ends: 10634 [2021-06-05 03:43:21,701 INFO L226 Difference]: Without dead ends: 10111 [2021-06-05 03:43:21,701 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 157.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:21,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10111 states. [2021-06-05 03:43:21,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10111 to 5143. [2021-06-05 03:43:21,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.751653053286659) internal successors, (24433), 5142 states have internal predecessors, (24433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:21,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24433 transitions. [2021-06-05 03:43:21,919 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24433 transitions. Word has length 29 [2021-06-05 03:43:21,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:21,919 INFO L482 AbstractCegarLoop]: Abstraction has 5143 states and 24433 transitions. [2021-06-05 03:43:21,919 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:21,919 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24433 transitions. [2021-06-05 03:43:21,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:21,927 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:21,927 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:21,927 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable536 [2021-06-05 03:43:21,928 INFO L430 AbstractCegarLoop]: === Iteration 538 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:21,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:21,928 INFO L82 PathProgramCache]: Analyzing trace with hash 144286701, now seen corresponding path program 533 times [2021-06-05 03:43:21,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:21,928 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857851598] [2021-06-05 03:43:21,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:21,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:22,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:22,050 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:22,050 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857851598] [2021-06-05 03:43:22,050 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857851598] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:22,050 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:22,050 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:22,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899551163] [2021-06-05 03:43:22,050 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:22,050 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:22,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:22,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:22,050 INFO L87 Difference]: Start difference. First operand 5143 states and 24433 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:22,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:22,164 INFO L93 Difference]: Finished difference Result 10728 states and 48021 transitions. [2021-06-05 03:43:22,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:22,165 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:22,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:22,190 INFO L225 Difference]: With dead ends: 10728 [2021-06-05 03:43:22,190 INFO L226 Difference]: Without dead ends: 10251 [2021-06-05 03:43:22,190 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 143.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:22,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10251 states. [2021-06-05 03:43:22,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10251 to 5221. [2021-06-05 03:43:22,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5221 states, 5220 states have (on average 4.736781609195402) internal successors, (24726), 5220 states have internal predecessors, (24726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:22,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5221 states to 5221 states and 24726 transitions. [2021-06-05 03:43:22,409 INFO L78 Accepts]: Start accepts. Automaton has 5221 states and 24726 transitions. Word has length 29 [2021-06-05 03:43:22,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:22,409 INFO L482 AbstractCegarLoop]: Abstraction has 5221 states and 24726 transitions. [2021-06-05 03:43:22,409 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:22,409 INFO L276 IsEmpty]: Start isEmpty. Operand 5221 states and 24726 transitions. [2021-06-05 03:43:22,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:22,418 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:22,418 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:22,418 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable537 [2021-06-05 03:43:22,418 INFO L430 AbstractCegarLoop]: === Iteration 539 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:22,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:22,418 INFO L82 PathProgramCache]: Analyzing trace with hash -1247857845, now seen corresponding path program 534 times [2021-06-05 03:43:22,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:22,419 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189063539] [2021-06-05 03:43:22,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:22,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:22,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:22,535 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:22,535 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189063539] [2021-06-05 03:43:22,535 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189063539] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:22,535 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:22,535 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:22,535 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597695729] [2021-06-05 03:43:22,536 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:22,536 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:22,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:22,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:22,536 INFO L87 Difference]: Start difference. First operand 5221 states and 24726 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:22,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:22,651 INFO L93 Difference]: Finished difference Result 10726 states and 47938 transitions. [2021-06-05 03:43:22,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:22,651 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:22,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:22,676 INFO L225 Difference]: With dead ends: 10726 [2021-06-05 03:43:22,676 INFO L226 Difference]: Without dead ends: 10149 [2021-06-05 03:43:22,676 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 141.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:22,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10149 states. [2021-06-05 03:43:22,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10149 to 5119. [2021-06-05 03:43:22,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5119 states, 5118 states have (on average 4.756740914419695) internal successors, (24345), 5118 states have internal predecessors, (24345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:22,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5119 states to 5119 states and 24345 transitions. [2021-06-05 03:43:22,902 INFO L78 Accepts]: Start accepts. Automaton has 5119 states and 24345 transitions. Word has length 29 [2021-06-05 03:43:22,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:22,902 INFO L482 AbstractCegarLoop]: Abstraction has 5119 states and 24345 transitions. [2021-06-05 03:43:22,902 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:22,902 INFO L276 IsEmpty]: Start isEmpty. Operand 5119 states and 24345 transitions. [2021-06-05 03:43:22,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:22,911 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:22,911 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:22,911 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable538 [2021-06-05 03:43:22,911 INFO L430 AbstractCegarLoop]: === Iteration 540 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:22,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:22,911 INFO L82 PathProgramCache]: Analyzing trace with hash -694128535, now seen corresponding path program 535 times [2021-06-05 03:43:22,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:22,911 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84874684] [2021-06-05 03:43:22,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:22,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:23,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:23,025 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:23,025 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84874684] [2021-06-05 03:43:23,026 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84874684] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:23,026 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:23,026 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:23,026 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429900303] [2021-06-05 03:43:23,026 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:23,026 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:23,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:23,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:23,026 INFO L87 Difference]: Start difference. First operand 5119 states and 24345 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:23,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:23,140 INFO L93 Difference]: Finished difference Result 10570 states and 47358 transitions. [2021-06-05 03:43:23,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:23,140 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:23,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:23,165 INFO L225 Difference]: With dead ends: 10570 [2021-06-05 03:43:23,165 INFO L226 Difference]: Without dead ends: 10155 [2021-06-05 03:43:23,165 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 139.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:23,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10155 states. [2021-06-05 03:43:23,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10155 to 5191. [2021-06-05 03:43:23,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.7485549132947975) internal successors, (24645), 5190 states have internal predecessors, (24645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:23,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24645 transitions. [2021-06-05 03:43:23,381 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24645 transitions. Word has length 29 [2021-06-05 03:43:23,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:23,381 INFO L482 AbstractCegarLoop]: Abstraction has 5191 states and 24645 transitions. [2021-06-05 03:43:23,381 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:23,381 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24645 transitions. [2021-06-05 03:43:23,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:23,390 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:23,390 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:23,390 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable539 [2021-06-05 03:43:23,390 INFO L430 AbstractCegarLoop]: === Iteration 541 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:23,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:23,390 INFO L82 PathProgramCache]: Analyzing trace with hash 22534411, now seen corresponding path program 536 times [2021-06-05 03:43:23,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:23,390 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582435668] [2021-06-05 03:43:23,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:23,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:23,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:23,505 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:23,505 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582435668] [2021-06-05 03:43:23,505 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582435668] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:23,505 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:23,505 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:23,505 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062633636] [2021-06-05 03:43:23,505 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:23,505 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:23,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:23,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:23,506 INFO L87 Difference]: Start difference. First operand 5191 states and 24645 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:23,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:23,618 INFO L93 Difference]: Finished difference Result 10632 states and 47579 transitions. [2021-06-05 03:43:23,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:23,618 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:23,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:23,645 INFO L225 Difference]: With dead ends: 10632 [2021-06-05 03:43:23,645 INFO L226 Difference]: Without dead ends: 10107 [2021-06-05 03:43:23,645 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 139.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:23,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10107 states. [2021-06-05 03:43:23,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10107 to 5143. [2021-06-05 03:43:23,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.753986775573707) internal successors, (24445), 5142 states have internal predecessors, (24445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:23,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24445 transitions. [2021-06-05 03:43:23,863 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24445 transitions. Word has length 29 [2021-06-05 03:43:23,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:23,863 INFO L482 AbstractCegarLoop]: Abstraction has 5143 states and 24445 transitions. [2021-06-05 03:43:23,863 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:23,863 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24445 transitions. [2021-06-05 03:43:23,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:23,872 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:23,872 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:23,872 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable540 [2021-06-05 03:43:23,872 INFO L430 AbstractCegarLoop]: === Iteration 542 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:23,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:23,875 INFO L82 PathProgramCache]: Analyzing trace with hash 1251192843, now seen corresponding path program 537 times [2021-06-05 03:43:23,875 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:23,876 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504511773] [2021-06-05 03:43:23,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:23,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:23,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:23,984 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:23,984 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504511773] [2021-06-05 03:43:23,984 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504511773] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:23,984 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:23,984 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:23,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496528947] [2021-06-05 03:43:23,985 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:23,985 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:23,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:23,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:23,985 INFO L87 Difference]: Start difference. First operand 5143 states and 24445 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:24,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:24,097 INFO L93 Difference]: Finished difference Result 10564 states and 47317 transitions. [2021-06-05 03:43:24,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:24,098 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:24,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:24,122 INFO L225 Difference]: With dead ends: 10564 [2021-06-05 03:43:24,123 INFO L226 Difference]: Without dead ends: 10149 [2021-06-05 03:43:24,123 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 130.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:24,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10149 states. [2021-06-05 03:43:24,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10149 to 5191. [2021-06-05 03:43:24,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.74393063583815) internal successors, (24621), 5190 states have internal predecessors, (24621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:24,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24621 transitions. [2021-06-05 03:43:24,341 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24621 transitions. Word has length 29 [2021-06-05 03:43:24,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:24,341 INFO L482 AbstractCegarLoop]: Abstraction has 5191 states and 24621 transitions. [2021-06-05 03:43:24,341 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:24,341 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24621 transitions. [2021-06-05 03:43:24,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:24,349 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:24,349 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:24,350 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable541 [2021-06-05 03:43:24,350 INFO L430 AbstractCegarLoop]: === Iteration 543 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:24,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:24,350 INFO L82 PathProgramCache]: Analyzing trace with hash 395803595, now seen corresponding path program 538 times [2021-06-05 03:43:24,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:24,350 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908349950] [2021-06-05 03:43:24,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:24,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:24,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:24,451 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:24,451 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908349950] [2021-06-05 03:43:24,451 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908349950] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:24,451 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:24,451 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:24,451 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028468049] [2021-06-05 03:43:24,451 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:24,451 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:24,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:24,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:24,452 INFO L87 Difference]: Start difference. First operand 5191 states and 24621 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:24,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:24,561 INFO L93 Difference]: Finished difference Result 10620 states and 47521 transitions. [2021-06-05 03:43:24,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:24,561 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:24,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:24,586 INFO L225 Difference]: With dead ends: 10620 [2021-06-05 03:43:24,586 INFO L226 Difference]: Without dead ends: 10101 [2021-06-05 03:43:24,587 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 126.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:24,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10101 states. [2021-06-05 03:43:24,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10101 to 5143. [2021-06-05 03:43:24,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.749319330999611) internal successors, (24421), 5142 states have internal predecessors, (24421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:24,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24421 transitions. [2021-06-05 03:43:24,810 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24421 transitions. Word has length 29 [2021-06-05 03:43:24,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:24,810 INFO L482 AbstractCegarLoop]: Abstraction has 5143 states and 24421 transitions. [2021-06-05 03:43:24,810 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:24,810 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24421 transitions. [2021-06-05 03:43:24,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:24,818 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:24,818 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:24,818 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable542 [2021-06-05 03:43:24,818 INFO L430 AbstractCegarLoop]: === Iteration 544 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:24,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:24,818 INFO L82 PathProgramCache]: Analyzing trace with hash -102468627, now seen corresponding path program 539 times [2021-06-05 03:43:24,819 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:24,819 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544478457] [2021-06-05 03:43:24,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:24,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:24,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:24,920 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:24,920 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544478457] [2021-06-05 03:43:24,920 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544478457] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:24,920 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:24,920 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:24,920 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999665173] [2021-06-05 03:43:24,920 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:24,920 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:24,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:24,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:24,921 INFO L87 Difference]: Start difference. First operand 5143 states and 24421 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:25,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:25,034 INFO L93 Difference]: Finished difference Result 10716 states and 47971 transitions. [2021-06-05 03:43:25,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:25,034 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:25,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:25,059 INFO L225 Difference]: With dead ends: 10716 [2021-06-05 03:43:25,060 INFO L226 Difference]: Without dead ends: 10239 [2021-06-05 03:43:25,060 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 126.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:25,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10239 states. [2021-06-05 03:43:25,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10239 to 5219. [2021-06-05 03:43:25,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5219 states, 5218 states have (on average 4.73533921042545) internal successors, (24709), 5218 states have internal predecessors, (24709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:25,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5219 states to 5219 states and 24709 transitions. [2021-06-05 03:43:25,279 INFO L78 Accepts]: Start accepts. Automaton has 5219 states and 24709 transitions. Word has length 29 [2021-06-05 03:43:25,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:25,279 INFO L482 AbstractCegarLoop]: Abstraction has 5219 states and 24709 transitions. [2021-06-05 03:43:25,279 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:25,279 INFO L276 IsEmpty]: Start isEmpty. Operand 5219 states and 24709 transitions. [2021-06-05 03:43:25,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:25,288 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:25,288 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:25,288 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable543 [2021-06-05 03:43:25,288 INFO L430 AbstractCegarLoop]: === Iteration 545 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:25,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:25,288 INFO L82 PathProgramCache]: Analyzing trace with hash -843420725, now seen corresponding path program 540 times [2021-06-05 03:43:25,288 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:25,288 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084842993] [2021-06-05 03:43:25,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:25,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:25,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:25,389 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:25,389 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084842993] [2021-06-05 03:43:25,389 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084842993] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:25,389 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:25,389 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:25,389 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365522822] [2021-06-05 03:43:25,390 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:25,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:25,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:25,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:25,390 INFO L87 Difference]: Start difference. First operand 5219 states and 24709 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:25,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:25,507 INFO L93 Difference]: Finished difference Result 10710 states and 47878 transitions. [2021-06-05 03:43:25,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:25,508 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:25,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:25,533 INFO L225 Difference]: With dead ends: 10710 [2021-06-05 03:43:25,533 INFO L226 Difference]: Without dead ends: 10139 [2021-06-05 03:43:25,533 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 126.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:25,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10139 states. [2021-06-05 03:43:25,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10139 to 5119. [2021-06-05 03:43:25,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5119 states, 5118 states have (on average 4.754396248534584) internal successors, (24333), 5118 states have internal predecessors, (24333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:25,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5119 states to 5119 states and 24333 transitions. [2021-06-05 03:43:25,749 INFO L78 Accepts]: Start accepts. Automaton has 5119 states and 24333 transitions. Word has length 29 [2021-06-05 03:43:25,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:25,749 INFO L482 AbstractCegarLoop]: Abstraction has 5119 states and 24333 transitions. [2021-06-05 03:43:25,749 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:25,749 INFO L276 IsEmpty]: Start isEmpty. Operand 5119 states and 24333 transitions. [2021-06-05 03:43:25,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:25,758 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:25,758 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:25,758 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable544 [2021-06-05 03:43:25,758 INFO L430 AbstractCegarLoop]: === Iteration 546 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:25,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:25,758 INFO L82 PathProgramCache]: Analyzing trace with hash 31860747, now seen corresponding path program 541 times [2021-06-05 03:43:25,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:25,758 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194494191] [2021-06-05 03:43:25,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:25,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:25,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:25,873 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:25,873 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194494191] [2021-06-05 03:43:25,873 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194494191] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:25,873 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:25,873 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:25,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842848330] [2021-06-05 03:43:25,874 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:25,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:25,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:25,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:25,874 INFO L87 Difference]: Start difference. First operand 5119 states and 24333 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:25,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:25,984 INFO L93 Difference]: Finished difference Result 10566 states and 47336 transitions. [2021-06-05 03:43:25,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:25,984 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:25,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:26,010 INFO L225 Difference]: With dead ends: 10566 [2021-06-05 03:43:26,010 INFO L226 Difference]: Without dead ends: 10151 [2021-06-05 03:43:26,010 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 139.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:26,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10151 states. [2021-06-05 03:43:26,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10151 to 5191. [2021-06-05 03:43:26,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.746242774566474) internal successors, (24633), 5190 states have internal predecessors, (24633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:26,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24633 transitions. [2021-06-05 03:43:26,232 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24633 transitions. Word has length 29 [2021-06-05 03:43:26,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:26,232 INFO L482 AbstractCegarLoop]: Abstraction has 5191 states and 24633 transitions. [2021-06-05 03:43:26,232 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:26,232 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24633 transitions. [2021-06-05 03:43:26,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:26,240 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:26,240 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:26,241 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable545 [2021-06-05 03:43:26,241 INFO L430 AbstractCegarLoop]: === Iteration 547 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:26,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:26,241 INFO L82 PathProgramCache]: Analyzing trace with hash 1061426123, now seen corresponding path program 542 times [2021-06-05 03:43:26,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:26,241 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604964534] [2021-06-05 03:43:26,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:26,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:26,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:26,359 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:26,359 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604964534] [2021-06-05 03:43:26,360 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604964534] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:26,360 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:26,360 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:26,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246652335] [2021-06-05 03:43:26,360 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:26,360 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:26,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:26,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:26,360 INFO L87 Difference]: Start difference. First operand 5191 states and 24633 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:26,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:26,472 INFO L93 Difference]: Finished difference Result 10626 states and 47552 transitions. [2021-06-05 03:43:26,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:26,472 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:26,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:26,497 INFO L225 Difference]: With dead ends: 10626 [2021-06-05 03:43:26,497 INFO L226 Difference]: Without dead ends: 10103 [2021-06-05 03:43:26,498 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 142.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:26,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10103 states. [2021-06-05 03:43:26,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10103 to 5143. [2021-06-05 03:43:26,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.751653053286659) internal successors, (24433), 5142 states have internal predecessors, (24433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:26,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24433 transitions. [2021-06-05 03:43:26,760 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24433 transitions. Word has length 29 [2021-06-05 03:43:26,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:26,760 INFO L482 AbstractCegarLoop]: Abstraction has 5143 states and 24433 transitions. [2021-06-05 03:43:26,760 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:26,760 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24433 transitions. [2021-06-05 03:43:26,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:26,769 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:26,769 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:26,769 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable546 [2021-06-05 03:43:26,769 INFO L430 AbstractCegarLoop]: === Iteration 548 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:26,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:26,769 INFO L82 PathProgramCache]: Analyzing trace with hash -1991200791, now seen corresponding path program 543 times [2021-06-05 03:43:26,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:26,769 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667329498] [2021-06-05 03:43:26,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:26,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:26,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:26,871 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:26,871 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667329498] [2021-06-05 03:43:26,871 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667329498] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:26,871 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:26,871 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:26,871 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865972743] [2021-06-05 03:43:26,871 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:26,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:26,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:26,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:26,871 INFO L87 Difference]: Start difference. First operand 5143 states and 24433 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:26,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:26,987 INFO L93 Difference]: Finished difference Result 10562 states and 47300 transitions. [2021-06-05 03:43:26,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:26,987 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:26,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:27,012 INFO L225 Difference]: With dead ends: 10562 [2021-06-05 03:43:27,012 INFO L226 Difference]: Without dead ends: 10147 [2021-06-05 03:43:27,012 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 125.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:27,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10147 states. [2021-06-05 03:43:27,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10147 to 5191. [2021-06-05 03:43:27,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.741618497109827) internal successors, (24609), 5190 states have internal predecessors, (24609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:27,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24609 transitions. [2021-06-05 03:43:27,230 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24609 transitions. Word has length 29 [2021-06-05 03:43:27,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:27,230 INFO L482 AbstractCegarLoop]: Abstraction has 5191 states and 24609 transitions. [2021-06-05 03:43:27,230 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:27,230 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24609 transitions. [2021-06-05 03:43:27,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:27,238 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:27,239 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:27,239 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable547 [2021-06-05 03:43:27,239 INFO L430 AbstractCegarLoop]: === Iteration 549 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:27,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:27,239 INFO L82 PathProgramCache]: Analyzing trace with hash -1526537269, now seen corresponding path program 544 times [2021-06-05 03:43:27,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:27,239 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502815957] [2021-06-05 03:43:27,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:27,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:27,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:27,353 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:27,353 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502815957] [2021-06-05 03:43:27,353 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502815957] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:27,353 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:27,353 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:27,353 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051264958] [2021-06-05 03:43:27,353 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:27,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:27,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:27,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:27,354 INFO L87 Difference]: Start difference. First operand 5191 states and 24609 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:27,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:27,476 INFO L93 Difference]: Finished difference Result 10618 states and 47504 transitions. [2021-06-05 03:43:27,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:27,476 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:27,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:27,501 INFO L225 Difference]: With dead ends: 10618 [2021-06-05 03:43:27,501 INFO L226 Difference]: Without dead ends: 10099 [2021-06-05 03:43:27,501 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 134.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:27,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10099 states. [2021-06-05 03:43:27,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10099 to 5143. [2021-06-05 03:43:27,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.7469856087125635) internal successors, (24409), 5142 states have internal predecessors, (24409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:27,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24409 transitions. [2021-06-05 03:43:27,718 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24409 transitions. Word has length 29 [2021-06-05 03:43:27,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:27,718 INFO L482 AbstractCegarLoop]: Abstraction has 5143 states and 24409 transitions. [2021-06-05 03:43:27,718 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:27,718 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24409 transitions. [2021-06-05 03:43:27,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:27,727 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:27,727 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:27,727 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable548 [2021-06-05 03:43:27,727 INFO L430 AbstractCegarLoop]: === Iteration 550 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:27,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:27,727 INFO L82 PathProgramCache]: Analyzing trace with hash -628887669, now seen corresponding path program 545 times [2021-06-05 03:43:27,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:27,727 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174400493] [2021-06-05 03:43:27,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:27,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:27,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:27,828 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:27,828 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174400493] [2021-06-05 03:43:27,828 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174400493] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:27,828 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:27,828 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:27,828 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199555025] [2021-06-05 03:43:27,828 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:27,828 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:27,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:27,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:27,829 INFO L87 Difference]: Start difference. First operand 5143 states and 24409 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:27,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:27,943 INFO L93 Difference]: Finished difference Result 10710 states and 47944 transitions. [2021-06-05 03:43:27,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:27,943 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:27,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:27,968 INFO L225 Difference]: With dead ends: 10710 [2021-06-05 03:43:27,969 INFO L226 Difference]: Without dead ends: 10235 [2021-06-05 03:43:27,969 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 125.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:28,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10235 states. [2021-06-05 03:43:28,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10235 to 5219. [2021-06-05 03:43:28,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5219 states, 5218 states have (on average 4.733039478727481) internal successors, (24697), 5218 states have internal predecessors, (24697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:28,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5219 states to 5219 states and 24697 transitions. [2021-06-05 03:43:28,188 INFO L78 Accepts]: Start accepts. Automaton has 5219 states and 24697 transitions. Word has length 29 [2021-06-05 03:43:28,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:28,188 INFO L482 AbstractCegarLoop]: Abstraction has 5219 states and 24697 transitions. [2021-06-05 03:43:28,188 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:28,189 INFO L276 IsEmpty]: Start isEmpty. Operand 5219 states and 24697 transitions. [2021-06-05 03:43:28,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:28,197 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:28,197 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:28,197 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable549 [2021-06-05 03:43:28,197 INFO L430 AbstractCegarLoop]: === Iteration 551 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:28,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:28,198 INFO L82 PathProgramCache]: Analyzing trace with hash 1622742633, now seen corresponding path program 546 times [2021-06-05 03:43:28,198 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:28,198 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338054537] [2021-06-05 03:43:28,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:28,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:28,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:28,299 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:28,299 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338054537] [2021-06-05 03:43:28,299 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338054537] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:28,299 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:28,299 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:28,299 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361182494] [2021-06-05 03:43:28,299 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:28,299 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:28,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:28,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:28,300 INFO L87 Difference]: Start difference. First operand 5219 states and 24697 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:28,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:28,417 INFO L93 Difference]: Finished difference Result 10706 states and 47856 transitions. [2021-06-05 03:43:28,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:28,418 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:28,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:28,443 INFO L225 Difference]: With dead ends: 10706 [2021-06-05 03:43:28,443 INFO L226 Difference]: Without dead ends: 10135 [2021-06-05 03:43:28,443 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 125.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:28,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10135 states. [2021-06-05 03:43:28,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10135 to 5119. [2021-06-05 03:43:28,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5119 states, 5118 states have (on average 4.7520515826494725) internal successors, (24321), 5118 states have internal predecessors, (24321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:28,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5119 states to 5119 states and 24321 transitions. [2021-06-05 03:43:28,660 INFO L78 Accepts]: Start accepts. Automaton has 5119 states and 24321 transitions. Word has length 29 [2021-06-05 03:43:28,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:28,660 INFO L482 AbstractCegarLoop]: Abstraction has 5119 states and 24321 transitions. [2021-06-05 03:43:28,660 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:28,660 INFO L276 IsEmpty]: Start isEmpty. Operand 5119 states and 24321 transitions. [2021-06-05 03:43:28,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:28,668 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:28,669 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:28,669 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable550 [2021-06-05 03:43:28,669 INFO L430 AbstractCegarLoop]: === Iteration 552 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:28,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:28,669 INFO L82 PathProgramCache]: Analyzing trace with hash 223446829, now seen corresponding path program 547 times [2021-06-05 03:43:28,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:28,669 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278115297] [2021-06-05 03:43:28,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:28,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:28,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:28,770 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:28,770 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278115297] [2021-06-05 03:43:28,770 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278115297] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:28,771 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:28,771 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:28,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711664229] [2021-06-05 03:43:28,771 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:28,771 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:28,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:28,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:28,771 INFO L87 Difference]: Start difference. First operand 5119 states and 24321 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:28,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:28,896 INFO L93 Difference]: Finished difference Result 10854 states and 48642 transitions. [2021-06-05 03:43:28,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:28,896 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:28,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:28,922 INFO L225 Difference]: With dead ends: 10854 [2021-06-05 03:43:28,922 INFO L226 Difference]: Without dead ends: 10377 [2021-06-05 03:43:28,922 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 126.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:29,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10377 states. [2021-06-05 03:43:29,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10377 to 5235. [2021-06-05 03:43:29,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5235 states, 5234 states have (on average 4.741115781429118) internal successors, (24815), 5234 states have internal predecessors, (24815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:29,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5235 states to 5235 states and 24815 transitions. [2021-06-05 03:43:29,143 INFO L78 Accepts]: Start accepts. Automaton has 5235 states and 24815 transitions. Word has length 29 [2021-06-05 03:43:29,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:29,143 INFO L482 AbstractCegarLoop]: Abstraction has 5235 states and 24815 transitions. [2021-06-05 03:43:29,143 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:29,143 INFO L276 IsEmpty]: Start isEmpty. Operand 5235 states and 24815 transitions. [2021-06-05 03:43:29,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:29,152 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:29,152 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:29,152 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable551 [2021-06-05 03:43:29,152 INFO L430 AbstractCegarLoop]: === Iteration 553 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:29,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:29,152 INFO L82 PathProgramCache]: Analyzing trace with hash -1168697717, now seen corresponding path program 548 times [2021-06-05 03:43:29,152 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:29,152 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901589714] [2021-06-05 03:43:29,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:29,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:29,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:29,255 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:29,255 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901589714] [2021-06-05 03:43:29,255 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901589714] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:29,255 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:29,255 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:29,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071055686] [2021-06-05 03:43:29,255 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:29,256 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:29,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:29,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:29,256 INFO L87 Difference]: Start difference. First operand 5235 states and 24815 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:29,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:29,376 INFO L93 Difference]: Finished difference Result 10852 states and 48559 transitions. [2021-06-05 03:43:29,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:29,376 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:29,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:29,401 INFO L225 Difference]: With dead ends: 10852 [2021-06-05 03:43:29,401 INFO L226 Difference]: Without dead ends: 10299 [2021-06-05 03:43:29,401 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 127.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:29,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10299 states. [2021-06-05 03:43:29,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10299 to 5157. [2021-06-05 03:43:29,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5157 states, 5156 states have (on average 4.748642358417378) internal successors, (24484), 5156 states have internal predecessors, (24484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:29,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5157 states to 5157 states and 24484 transitions. [2021-06-05 03:43:29,618 INFO L78 Accepts]: Start accepts. Automaton has 5157 states and 24484 transitions. Word has length 29 [2021-06-05 03:43:29,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:29,618 INFO L482 AbstractCegarLoop]: Abstraction has 5157 states and 24484 transitions. [2021-06-05 03:43:29,618 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:29,618 INFO L276 IsEmpty]: Start isEmpty. Operand 5157 states and 24484 transitions. [2021-06-05 03:43:29,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:29,626 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:29,626 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:29,626 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable552 [2021-06-05 03:43:29,626 INFO L430 AbstractCegarLoop]: === Iteration 554 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:29,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:29,627 INFO L82 PathProgramCache]: Analyzing trace with hash -623350133, now seen corresponding path program 549 times [2021-06-05 03:43:29,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:29,627 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387989190] [2021-06-05 03:43:29,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:29,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:29,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:29,728 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:29,728 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387989190] [2021-06-05 03:43:29,728 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387989190] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:29,728 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:29,728 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:29,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657808174] [2021-06-05 03:43:29,728 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:29,728 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:29,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:29,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:29,728 INFO L87 Difference]: Start difference. First operand 5157 states and 24484 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:29,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:29,835 INFO L93 Difference]: Finished difference Result 10848 states and 48585 transitions. [2021-06-05 03:43:29,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:29,835 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:29,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:29,861 INFO L225 Difference]: With dead ends: 10848 [2021-06-05 03:43:29,861 INFO L226 Difference]: Without dead ends: 10371 [2021-06-05 03:43:29,861 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 126.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:29,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10371 states. [2021-06-05 03:43:30,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10371 to 5233. [2021-06-05 03:43:30,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5233 states, 5232 states have (on average 4.734709480122324) internal successors, (24772), 5232 states have internal predecessors, (24772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:30,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5233 states to 5233 states and 24772 transitions. [2021-06-05 03:43:30,083 INFO L78 Accepts]: Start accepts. Automaton has 5233 states and 24772 transitions. Word has length 29 [2021-06-05 03:43:30,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:30,083 INFO L482 AbstractCegarLoop]: Abstraction has 5233 states and 24772 transitions. [2021-06-05 03:43:30,083 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:30,083 INFO L276 IsEmpty]: Start isEmpty. Operand 5233 states and 24772 transitions. [2021-06-05 03:43:30,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:30,091 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:30,092 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:30,092 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable553 [2021-06-05 03:43:30,092 INFO L430 AbstractCegarLoop]: === Iteration 555 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:30,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:30,092 INFO L82 PathProgramCache]: Analyzing trace with hash 1220308747, now seen corresponding path program 550 times [2021-06-05 03:43:30,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:30,092 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895456926] [2021-06-05 03:43:30,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:30,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:30,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:30,197 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:30,197 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895456926] [2021-06-05 03:43:30,197 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895456926] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:30,197 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:30,197 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:30,197 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028065520] [2021-06-05 03:43:30,197 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:30,197 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:30,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:30,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:30,198 INFO L87 Difference]: Start difference. First operand 5233 states and 24772 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:30,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:30,306 INFO L93 Difference]: Finished difference Result 10842 states and 48492 transitions. [2021-06-05 03:43:30,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:30,306 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:30,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:30,331 INFO L225 Difference]: With dead ends: 10842 [2021-06-05 03:43:30,332 INFO L226 Difference]: Without dead ends: 10295 [2021-06-05 03:43:30,332 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 125.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:30,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10295 states. [2021-06-05 03:43:30,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10295 to 5157. [2021-06-05 03:43:30,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5157 states, 5156 states have (on average 4.741272304111715) internal successors, (24446), 5156 states have internal predecessors, (24446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:30,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5157 states to 5157 states and 24446 transitions. [2021-06-05 03:43:30,554 INFO L78 Accepts]: Start accepts. Automaton has 5157 states and 24446 transitions. Word has length 29 [2021-06-05 03:43:30,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:30,554 INFO L482 AbstractCegarLoop]: Abstraction has 5157 states and 24446 transitions. [2021-06-05 03:43:30,554 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:30,554 INFO L276 IsEmpty]: Start isEmpty. Operand 5157 states and 24446 transitions. [2021-06-05 03:43:30,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:30,563 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:30,563 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:30,563 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable554 [2021-06-05 03:43:30,563 INFO L430 AbstractCegarLoop]: === Iteration 556 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:30,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:30,563 INFO L82 PathProgramCache]: Analyzing trace with hash -259092759, now seen corresponding path program 551 times [2021-06-05 03:43:30,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:30,564 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603027310] [2021-06-05 03:43:30,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:30,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:30,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:30,665 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:30,665 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603027310] [2021-06-05 03:43:30,665 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603027310] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:30,665 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:30,665 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:30,665 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190644270] [2021-06-05 03:43:30,665 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:30,665 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:30,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:30,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:30,666 INFO L87 Difference]: Start difference. First operand 5157 states and 24446 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:30,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:30,772 INFO L93 Difference]: Finished difference Result 10844 states and 48537 transitions. [2021-06-05 03:43:30,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:30,772 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:30,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:30,797 INFO L225 Difference]: With dead ends: 10844 [2021-06-05 03:43:30,797 INFO L226 Difference]: Without dead ends: 10369 [2021-06-05 03:43:30,797 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 126.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:30,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10369 states. [2021-06-05 03:43:30,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10369 to 5233. [2021-06-05 03:43:31,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5233 states, 5232 states have (on average 4.727446483180428) internal successors, (24734), 5232 states have internal predecessors, (24734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:31,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5233 states to 5233 states and 24734 transitions. [2021-06-05 03:43:31,016 INFO L78 Accepts]: Start accepts. Automaton has 5233 states and 24734 transitions. Word has length 29 [2021-06-05 03:43:31,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:31,016 INFO L482 AbstractCegarLoop]: Abstraction has 5233 states and 24734 transitions. [2021-06-05 03:43:31,016 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:31,016 INFO L276 IsEmpty]: Start isEmpty. Operand 5233 states and 24734 transitions. [2021-06-05 03:43:31,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:31,024 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:31,024 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:31,024 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable555 [2021-06-05 03:43:31,024 INFO L430 AbstractCegarLoop]: === Iteration 557 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:31,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:31,025 INFO L82 PathProgramCache]: Analyzing trace with hash 821969867, now seen corresponding path program 552 times [2021-06-05 03:43:31,025 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:31,025 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628356768] [2021-06-05 03:43:31,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:31,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:31,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:31,128 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:31,128 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628356768] [2021-06-05 03:43:31,128 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628356768] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:31,128 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:31,128 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:31,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051127076] [2021-06-05 03:43:31,128 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:31,129 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:31,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:31,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:31,129 INFO L87 Difference]: Start difference. First operand 5233 states and 24734 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:31,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:31,254 INFO L93 Difference]: Finished difference Result 10840 states and 48449 transitions. [2021-06-05 03:43:31,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:31,254 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:31,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:31,281 INFO L225 Difference]: With dead ends: 10840 [2021-06-05 03:43:31,281 INFO L226 Difference]: Without dead ends: 10243 [2021-06-05 03:43:31,281 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:31,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10243 states. [2021-06-05 03:43:31,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10243 to 5107. [2021-06-05 03:43:31,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5107 states, 5106 states have (on average 4.756169212690952) internal successors, (24285), 5106 states have internal predecessors, (24285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:31,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5107 states to 5107 states and 24285 transitions. [2021-06-05 03:43:31,501 INFO L78 Accepts]: Start accepts. Automaton has 5107 states and 24285 transitions. Word has length 29 [2021-06-05 03:43:31,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:31,501 INFO L482 AbstractCegarLoop]: Abstraction has 5107 states and 24285 transitions. [2021-06-05 03:43:31,501 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:31,501 INFO L276 IsEmpty]: Start isEmpty. Operand 5107 states and 24285 transitions. [2021-06-05 03:43:31,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:31,510 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:31,510 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:31,510 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable556 [2021-06-05 03:43:31,510 INFO L430 AbstractCegarLoop]: === Iteration 558 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:31,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:31,510 INFO L82 PathProgramCache]: Analyzing trace with hash 1252809581, now seen corresponding path program 553 times [2021-06-05 03:43:31,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:31,510 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977843026] [2021-06-05 03:43:31,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:31,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:31,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:31,631 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:31,631 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977843026] [2021-06-05 03:43:31,631 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977843026] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:31,631 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:31,632 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:31,632 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181690117] [2021-06-05 03:43:31,632 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:31,632 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:31,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:31,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:31,632 INFO L87 Difference]: Start difference. First operand 5107 states and 24285 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:31,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:31,740 INFO L93 Difference]: Finished difference Result 10212 states and 45671 transitions. [2021-06-05 03:43:31,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:31,740 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:31,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:31,764 INFO L225 Difference]: With dead ends: 10212 [2021-06-05 03:43:31,765 INFO L226 Difference]: Without dead ends: 9797 [2021-06-05 03:43:31,765 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 141.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:31,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9797 states. [2021-06-05 03:43:31,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9797 to 5163. [2021-06-05 03:43:31,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5163 states, 5162 states have (on average 4.7502905850445565) internal successors, (24521), 5162 states have internal predecessors, (24521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:31,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5163 states to 5163 states and 24521 transitions. [2021-06-05 03:43:31,978 INFO L78 Accepts]: Start accepts. Automaton has 5163 states and 24521 transitions. Word has length 29 [2021-06-05 03:43:31,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:31,978 INFO L482 AbstractCegarLoop]: Abstraction has 5163 states and 24521 transitions. [2021-06-05 03:43:31,978 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:31,978 INFO L276 IsEmpty]: Start isEmpty. Operand 5163 states and 24521 transitions. [2021-06-05 03:43:31,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:31,987 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:31,987 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:31,987 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable557 [2021-06-05 03:43:31,987 INFO L430 AbstractCegarLoop]: === Iteration 559 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:31,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:31,987 INFO L82 PathProgramCache]: Analyzing trace with hash 1664217577, now seen corresponding path program 554 times [2021-06-05 03:43:31,987 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:31,987 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980939304] [2021-06-05 03:43:31,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:31,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:32,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:32,104 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:32,104 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980939304] [2021-06-05 03:43:32,104 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980939304] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:32,104 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:32,104 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:32,104 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958417286] [2021-06-05 03:43:32,104 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:32,104 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:32,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:32,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:32,104 INFO L87 Difference]: Start difference. First operand 5163 states and 24521 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:32,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:32,203 INFO L93 Difference]: Finished difference Result 10212 states and 45639 transitions. [2021-06-05 03:43:32,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:32,203 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:32,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:32,227 INFO L225 Difference]: With dead ends: 10212 [2021-06-05 03:43:32,227 INFO L226 Difference]: Without dead ends: 9765 [2021-06-05 03:43:32,227 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 122.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:32,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9765 states. [2021-06-05 03:43:32,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9765 to 5131. [2021-06-05 03:43:32,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.754970760233918) internal successors, (24393), 5130 states have internal predecessors, (24393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:32,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24393 transitions. [2021-06-05 03:43:32,440 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24393 transitions. Word has length 29 [2021-06-05 03:43:32,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:32,440 INFO L482 AbstractCegarLoop]: Abstraction has 5131 states and 24393 transitions. [2021-06-05 03:43:32,440 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:32,440 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24393 transitions. [2021-06-05 03:43:32,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:32,449 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:32,449 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:32,449 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable558 [2021-06-05 03:43:32,449 INFO L430 AbstractCegarLoop]: === Iteration 560 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:32,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:32,449 INFO L82 PathProgramCache]: Analyzing trace with hash -770251957, now seen corresponding path program 555 times [2021-06-05 03:43:32,449 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:32,449 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257237420] [2021-06-05 03:43:32,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:32,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:32,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:32,575 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:32,575 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257237420] [2021-06-05 03:43:32,575 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257237420] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:32,575 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:32,575 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:32,575 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617209300] [2021-06-05 03:43:32,575 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:32,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:32,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:32,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:32,576 INFO L87 Difference]: Start difference. First operand 5131 states and 24393 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:32,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:32,685 INFO L93 Difference]: Finished difference Result 10288 states and 45999 transitions. [2021-06-05 03:43:32,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:32,685 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:32,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:32,711 INFO L225 Difference]: With dead ends: 10288 [2021-06-05 03:43:32,711 INFO L226 Difference]: Without dead ends: 9873 [2021-06-05 03:43:32,711 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 150.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:32,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9873 states. [2021-06-05 03:43:32,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9873 to 5179. [2021-06-05 03:43:32,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.744882193897258) internal successors, (24569), 5178 states have internal predecessors, (24569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:32,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24569 transitions. [2021-06-05 03:43:32,929 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24569 transitions. Word has length 29 [2021-06-05 03:43:32,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:32,929 INFO L482 AbstractCegarLoop]: Abstraction has 5179 states and 24569 transitions. [2021-06-05 03:43:32,929 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:32,929 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24569 transitions. [2021-06-05 03:43:32,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:32,938 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:32,938 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:32,938 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable559 [2021-06-05 03:43:32,938 INFO L430 AbstractCegarLoop]: === Iteration 561 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:32,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:32,938 INFO L82 PathProgramCache]: Analyzing trace with hash 1579366189, now seen corresponding path program 556 times [2021-06-05 03:43:32,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:32,938 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820195376] [2021-06-05 03:43:32,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:32,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:33,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:33,066 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:33,066 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820195376] [2021-06-05 03:43:33,066 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820195376] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:33,066 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:33,066 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:33,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518610868] [2021-06-05 03:43:33,066 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:33,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:33,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:33,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:33,067 INFO L87 Difference]: Start difference. First operand 5179 states and 24569 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:33,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:33,178 INFO L93 Difference]: Finished difference Result 10348 states and 46215 transitions. [2021-06-05 03:43:33,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:33,178 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:33,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:33,202 INFO L225 Difference]: With dead ends: 10348 [2021-06-05 03:43:33,203 INFO L226 Difference]: Without dead ends: 9825 [2021-06-05 03:43:33,203 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 152.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:33,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9825 states. [2021-06-05 03:43:33,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9825 to 5131. [2021-06-05 03:43:33,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.7518518518518515) internal successors, (24377), 5130 states have internal predecessors, (24377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:33,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24377 transitions. [2021-06-05 03:43:33,433 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24377 transitions. Word has length 29 [2021-06-05 03:43:33,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:33,433 INFO L482 AbstractCegarLoop]: Abstraction has 5131 states and 24377 transitions. [2021-06-05 03:43:33,433 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:33,433 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24377 transitions. [2021-06-05 03:43:33,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:33,444 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:33,444 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:33,444 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable560 [2021-06-05 03:43:33,444 INFO L430 AbstractCegarLoop]: === Iteration 562 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:33,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:33,446 INFO L82 PathProgramCache]: Analyzing trace with hash -504466681, now seen corresponding path program 557 times [2021-06-05 03:43:33,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:33,446 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903957240] [2021-06-05 03:43:33,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:33,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:33,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:33,589 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:33,589 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903957240] [2021-06-05 03:43:33,589 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903957240] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:33,589 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:33,589 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:33,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380736094] [2021-06-05 03:43:33,589 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:33,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:33,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:33,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:33,589 INFO L87 Difference]: Start difference. First operand 5131 states and 24377 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:33,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:33,685 INFO L93 Difference]: Finished difference Result 10288 states and 45983 transitions. [2021-06-05 03:43:33,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:33,685 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:33,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:33,710 INFO L225 Difference]: With dead ends: 10288 [2021-06-05 03:43:33,710 INFO L226 Difference]: Without dead ends: 9873 [2021-06-05 03:43:33,710 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 146.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:33,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9873 states. [2021-06-05 03:43:33,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9873 to 5179. [2021-06-05 03:43:33,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.741792197759753) internal successors, (24553), 5178 states have internal predecessors, (24553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:33,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24553 transitions. [2021-06-05 03:43:33,931 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24553 transitions. Word has length 29 [2021-06-05 03:43:33,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:33,931 INFO L482 AbstractCegarLoop]: Abstraction has 5179 states and 24553 transitions. [2021-06-05 03:43:33,931 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:33,931 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24553 transitions. [2021-06-05 03:43:33,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:33,940 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:33,940 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:33,940 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable561 [2021-06-05 03:43:33,940 INFO L430 AbstractCegarLoop]: === Iteration 563 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:33,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:33,940 INFO L82 PathProgramCache]: Analyzing trace with hash 576595945, now seen corresponding path program 558 times [2021-06-05 03:43:33,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:33,940 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60573090] [2021-06-05 03:43:33,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:33,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:34,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:34,065 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:34,065 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60573090] [2021-06-05 03:43:34,065 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60573090] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:34,065 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:34,065 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:34,065 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475665751] [2021-06-05 03:43:34,066 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:34,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:34,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:34,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:34,066 INFO L87 Difference]: Start difference. First operand 5179 states and 24553 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:34,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:34,183 INFO L93 Difference]: Finished difference Result 10348 states and 46199 transitions. [2021-06-05 03:43:34,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:34,183 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:34,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:34,208 INFO L225 Difference]: With dead ends: 10348 [2021-06-05 03:43:34,208 INFO L226 Difference]: Without dead ends: 9809 [2021-06-05 03:43:34,208 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 149.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:34,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9809 states. [2021-06-05 03:43:34,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9809 to 5115. [2021-06-05 03:43:34,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5115 states, 5114 states have (on average 4.75576847868596) internal successors, (24321), 5114 states have internal predecessors, (24321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:34,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5115 states to 5115 states and 24321 transitions. [2021-06-05 03:43:34,425 INFO L78 Accepts]: Start accepts. Automaton has 5115 states and 24321 transitions. Word has length 29 [2021-06-05 03:43:34,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:34,425 INFO L482 AbstractCegarLoop]: Abstraction has 5115 states and 24321 transitions. [2021-06-05 03:43:34,426 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:34,426 INFO L276 IsEmpty]: Start isEmpty. Operand 5115 states and 24321 transitions. [2021-06-05 03:43:34,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:34,434 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:34,434 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:34,434 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable562 [2021-06-05 03:43:34,434 INFO L430 AbstractCegarLoop]: === Iteration 564 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:34,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:34,434 INFO L82 PathProgramCache]: Analyzing trace with hash -1584110645, now seen corresponding path program 559 times [2021-06-05 03:43:34,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:34,435 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140743779] [2021-06-05 03:43:34,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:34,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:34,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:34,539 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:34,539 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140743779] [2021-06-05 03:43:34,539 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140743779] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:34,539 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:34,539 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:34,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365413855] [2021-06-05 03:43:34,540 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:34,540 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:34,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:34,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:34,540 INFO L87 Difference]: Start difference. First operand 5115 states and 24321 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:34,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:34,667 INFO L93 Difference]: Finished difference Result 10208 states and 45651 transitions. [2021-06-05 03:43:34,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:34,667 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:34,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:34,692 INFO L225 Difference]: With dead ends: 10208 [2021-06-05 03:43:34,692 INFO L226 Difference]: Without dead ends: 9793 [2021-06-05 03:43:34,692 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 129.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:34,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9793 states. [2021-06-05 03:43:34,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9793 to 5163. [2021-06-05 03:43:34,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5163 states, 5162 states have (on average 4.748740798140256) internal successors, (24513), 5162 states have internal predecessors, (24513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:34,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5163 states to 5163 states and 24513 transitions. [2021-06-05 03:43:34,912 INFO L78 Accepts]: Start accepts. Automaton has 5163 states and 24513 transitions. Word has length 29 [2021-06-05 03:43:34,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:34,912 INFO L482 AbstractCegarLoop]: Abstraction has 5163 states and 24513 transitions. [2021-06-05 03:43:34,912 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:34,912 INFO L276 IsEmpty]: Start isEmpty. Operand 5163 states and 24513 transitions. [2021-06-05 03:43:34,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:34,921 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:34,921 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:34,921 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable563 [2021-06-05 03:43:34,921 INFO L430 AbstractCegarLoop]: === Iteration 565 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:34,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:34,921 INFO L82 PathProgramCache]: Analyzing trace with hash -1172702649, now seen corresponding path program 560 times [2021-06-05 03:43:34,921 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:34,921 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441067448] [2021-06-05 03:43:34,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:34,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:35,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:35,043 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:35,043 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441067448] [2021-06-05 03:43:35,043 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441067448] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:35,043 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:35,043 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:35,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37441040] [2021-06-05 03:43:35,043 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:35,043 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:35,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:35,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:35,043 INFO L87 Difference]: Start difference. First operand 5163 states and 24513 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:35,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:35,154 INFO L93 Difference]: Finished difference Result 10208 states and 45619 transitions. [2021-06-05 03:43:35,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:35,154 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:35,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:35,180 INFO L225 Difference]: With dead ends: 10208 [2021-06-05 03:43:35,180 INFO L226 Difference]: Without dead ends: 9761 [2021-06-05 03:43:35,181 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 124.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:35,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9761 states. [2021-06-05 03:43:35,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9761 to 5131. [2021-06-05 03:43:35,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.753411306042885) internal successors, (24385), 5130 states have internal predecessors, (24385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:35,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24385 transitions. [2021-06-05 03:43:35,398 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24385 transitions. Word has length 29 [2021-06-05 03:43:35,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:35,398 INFO L482 AbstractCegarLoop]: Abstraction has 5131 states and 24385 transitions. [2021-06-05 03:43:35,398 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:35,399 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24385 transitions. [2021-06-05 03:43:35,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:35,407 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:35,407 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:35,407 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable564 [2021-06-05 03:43:35,407 INFO L430 AbstractCegarLoop]: === Iteration 566 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:35,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:35,407 INFO L82 PathProgramCache]: Analyzing trace with hash -2061763637, now seen corresponding path program 561 times [2021-06-05 03:43:35,407 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:35,407 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713024565] [2021-06-05 03:43:35,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:35,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:35,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:35,513 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:35,513 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713024565] [2021-06-05 03:43:35,513 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713024565] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:35,513 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:35,513 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:35,513 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118320105] [2021-06-05 03:43:35,513 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:35,513 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:35,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:35,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:35,513 INFO L87 Difference]: Start difference. First operand 5131 states and 24385 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:35,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:35,623 INFO L93 Difference]: Finished difference Result 10280 states and 45967 transitions. [2021-06-05 03:43:35,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:35,623 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:35,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:35,648 INFO L225 Difference]: With dead ends: 10280 [2021-06-05 03:43:35,648 INFO L226 Difference]: Without dead ends: 9865 [2021-06-05 03:43:35,649 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 130.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:35,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9865 states. [2021-06-05 03:43:35,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9865 to 5179. [2021-06-05 03:43:35,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.743337195828505) internal successors, (24561), 5178 states have internal predecessors, (24561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:35,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24561 transitions. [2021-06-05 03:43:35,869 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24561 transitions. Word has length 29 [2021-06-05 03:43:35,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:35,869 INFO L482 AbstractCegarLoop]: Abstraction has 5179 states and 24561 transitions. [2021-06-05 03:43:35,869 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:35,869 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24561 transitions. [2021-06-05 03:43:35,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:35,878 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:35,878 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:35,878 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable565 [2021-06-05 03:43:35,878 INFO L430 AbstractCegarLoop]: === Iteration 567 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:35,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:35,878 INFO L82 PathProgramCache]: Analyzing trace with hash 2004809517, now seen corresponding path program 562 times [2021-06-05 03:43:35,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:35,878 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396760087] [2021-06-05 03:43:35,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:35,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:36,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:36,031 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:36,031 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396760087] [2021-06-05 03:43:36,031 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396760087] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:36,031 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:36,031 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:36,032 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443874010] [2021-06-05 03:43:36,032 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:36,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:36,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:36,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:36,032 INFO L87 Difference]: Start difference. First operand 5179 states and 24561 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:36,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:36,146 INFO L93 Difference]: Finished difference Result 10336 states and 46171 transitions. [2021-06-05 03:43:36,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:36,146 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:36,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:36,170 INFO L225 Difference]: With dead ends: 10336 [2021-06-05 03:43:36,170 INFO L226 Difference]: Without dead ends: 9817 [2021-06-05 03:43:36,170 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 177.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:36,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9817 states. [2021-06-05 03:43:36,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9817 to 5131. [2021-06-05 03:43:36,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.750292397660819) internal successors, (24369), 5130 states have internal predecessors, (24369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:36,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24369 transitions. [2021-06-05 03:43:36,388 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24369 transitions. Word has length 29 [2021-06-05 03:43:36,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:36,388 INFO L482 AbstractCegarLoop]: Abstraction has 5131 states and 24369 transitions. [2021-06-05 03:43:36,388 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:36,388 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24369 transitions. [2021-06-05 03:43:36,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:36,396 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:36,396 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:36,397 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable566 [2021-06-05 03:43:36,397 INFO L430 AbstractCegarLoop]: === Iteration 568 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:36,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:36,397 INFO L82 PathProgramCache]: Analyzing trace with hash 536648583, now seen corresponding path program 563 times [2021-06-05 03:43:36,397 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:36,397 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607262248] [2021-06-05 03:43:36,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:36,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:36,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:36,512 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:36,512 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607262248] [2021-06-05 03:43:36,512 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607262248] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:36,512 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:36,512 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:36,512 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46942333] [2021-06-05 03:43:36,512 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:36,512 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:36,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:36,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:36,512 INFO L87 Difference]: Start difference. First operand 5131 states and 24369 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:36,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:36,605 INFO L93 Difference]: Finished difference Result 10280 states and 45951 transitions. [2021-06-05 03:43:36,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:36,605 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:36,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:36,629 INFO L225 Difference]: With dead ends: 10280 [2021-06-05 03:43:36,630 INFO L226 Difference]: Without dead ends: 9865 [2021-06-05 03:43:36,630 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 121.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:36,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9865 states. [2021-06-05 03:43:36,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9865 to 5179. [2021-06-05 03:43:36,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.740247199691001) internal successors, (24545), 5178 states have internal predecessors, (24545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:36,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24545 transitions. [2021-06-05 03:43:36,849 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24545 transitions. Word has length 29 [2021-06-05 03:43:36,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:36,849 INFO L482 AbstractCegarLoop]: Abstraction has 5179 states and 24545 transitions. [2021-06-05 03:43:36,849 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:36,849 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24545 transitions. [2021-06-05 03:43:36,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:36,858 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:36,858 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:36,858 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable567 [2021-06-05 03:43:36,858 INFO L430 AbstractCegarLoop]: === Iteration 569 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:36,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:36,858 INFO L82 PathProgramCache]: Analyzing trace with hash 329840617, now seen corresponding path program 564 times [2021-06-05 03:43:36,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:36,858 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758516973] [2021-06-05 03:43:36,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:36,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:36,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:36,973 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:36,973 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758516973] [2021-06-05 03:43:36,973 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758516973] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:36,973 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:36,973 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:36,973 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692600304] [2021-06-05 03:43:36,973 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:36,974 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:36,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:36,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:36,974 INFO L87 Difference]: Start difference. First operand 5179 states and 24545 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:37,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:37,089 INFO L93 Difference]: Finished difference Result 10336 states and 46155 transitions. [2021-06-05 03:43:37,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:37,089 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:37,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:37,113 INFO L225 Difference]: With dead ends: 10336 [2021-06-05 03:43:37,113 INFO L226 Difference]: Without dead ends: 9801 [2021-06-05 03:43:37,114 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 138.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:37,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9801 states. [2021-06-05 03:43:37,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9801 to 5115. [2021-06-05 03:43:37,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5115 states, 5114 states have (on average 4.754204145482988) internal successors, (24313), 5114 states have internal predecessors, (24313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:37,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5115 states to 5115 states and 24313 transitions. [2021-06-05 03:43:37,327 INFO L78 Accepts]: Start accepts. Automaton has 5115 states and 24313 transitions. Word has length 29 [2021-06-05 03:43:37,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:37,327 INFO L482 AbstractCegarLoop]: Abstraction has 5115 states and 24313 transitions. [2021-06-05 03:43:37,327 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:37,327 INFO L276 IsEmpty]: Start isEmpty. Operand 5115 states and 24313 transitions. [2021-06-05 03:43:37,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:37,336 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:37,336 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:37,336 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable568 [2021-06-05 03:43:37,336 INFO L430 AbstractCegarLoop]: === Iteration 570 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:37,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:37,336 INFO L82 PathProgramCache]: Analyzing trace with hash -285281239, now seen corresponding path program 565 times [2021-06-05 03:43:37,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:37,336 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382064804] [2021-06-05 03:43:37,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:37,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:37,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:37,451 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:37,451 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382064804] [2021-06-05 03:43:37,451 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382064804] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:37,452 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:37,452 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:37,452 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891994306] [2021-06-05 03:43:37,452 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:37,452 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:37,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:37,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:37,452 INFO L87 Difference]: Start difference. First operand 5115 states and 24313 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:37,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:37,565 INFO L93 Difference]: Finished difference Result 10396 states and 46515 transitions. [2021-06-05 03:43:37,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:37,565 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:37,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:37,589 INFO L225 Difference]: With dead ends: 10396 [2021-06-05 03:43:37,589 INFO L226 Difference]: Without dead ends: 9981 [2021-06-05 03:43:37,590 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 139.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:37,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9981 states. [2021-06-05 03:43:37,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9981 to 5187. [2021-06-05 03:43:37,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5187 states, 5186 states have (on average 4.7460470497493255) internal successors, (24613), 5186 states have internal predecessors, (24613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:37,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 5187 states and 24613 transitions. [2021-06-05 03:43:37,807 INFO L78 Accepts]: Start accepts. Automaton has 5187 states and 24613 transitions. Word has length 29 [2021-06-05 03:43:37,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:37,808 INFO L482 AbstractCegarLoop]: Abstraction has 5187 states and 24613 transitions. [2021-06-05 03:43:37,808 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:37,808 INFO L276 IsEmpty]: Start isEmpty. Operand 5187 states and 24613 transitions. [2021-06-05 03:43:37,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:37,816 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:37,816 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:37,816 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable569 [2021-06-05 03:43:37,816 INFO L430 AbstractCegarLoop]: === Iteration 571 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:37,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:37,817 INFO L82 PathProgramCache]: Analyzing trace with hash 2064336907, now seen corresponding path program 566 times [2021-06-05 03:43:37,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:37,817 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573914575] [2021-06-05 03:43:37,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:37,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:37,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:37,932 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:37,932 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573914575] [2021-06-05 03:43:37,932 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573914575] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:37,932 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:37,932 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:37,932 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816548701] [2021-06-05 03:43:37,932 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:37,932 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:37,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:37,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:37,933 INFO L87 Difference]: Start difference. First operand 5187 states and 24613 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:38,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:38,051 INFO L93 Difference]: Finished difference Result 10456 states and 46731 transitions. [2021-06-05 03:43:38,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:38,051 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:38,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:38,076 INFO L225 Difference]: With dead ends: 10456 [2021-06-05 03:43:38,076 INFO L226 Difference]: Without dead ends: 9933 [2021-06-05 03:43:38,076 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 139.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:38,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9933 states. [2021-06-05 03:43:38,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9933 to 5139. [2021-06-05 03:43:38,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5139 states, 5138 states have (on average 4.751459711950175) internal successors, (24413), 5138 states have internal predecessors, (24413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:38,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5139 states to 5139 states and 24413 transitions. [2021-06-05 03:43:38,291 INFO L78 Accepts]: Start accepts. Automaton has 5139 states and 24413 transitions. Word has length 29 [2021-06-05 03:43:38,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:38,291 INFO L482 AbstractCegarLoop]: Abstraction has 5139 states and 24413 transitions. [2021-06-05 03:43:38,291 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:38,292 INFO L276 IsEmpty]: Start isEmpty. Operand 5139 states and 24413 transitions. [2021-06-05 03:43:38,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:38,300 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:38,300 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:38,300 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable570 [2021-06-05 03:43:38,300 INFO L430 AbstractCegarLoop]: === Iteration 572 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:38,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:38,300 INFO L82 PathProgramCache]: Analyzing trace with hash 1424320523, now seen corresponding path program 567 times [2021-06-05 03:43:38,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:38,300 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617255758] [2021-06-05 03:43:38,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:38,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:38,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:38,403 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:38,403 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617255758] [2021-06-05 03:43:38,403 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617255758] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:38,403 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:38,404 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:38,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727574622] [2021-06-05 03:43:38,404 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:38,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:38,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:38,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:38,404 INFO L87 Difference]: Start difference. First operand 5139 states and 24413 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:38,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:38,525 INFO L93 Difference]: Finished difference Result 10392 states and 46479 transitions. [2021-06-05 03:43:38,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:38,525 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:38,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:38,550 INFO L225 Difference]: With dead ends: 10392 [2021-06-05 03:43:38,550 INFO L226 Difference]: Without dead ends: 9977 [2021-06-05 03:43:38,550 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 125.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:38,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9977 states. [2021-06-05 03:43:38,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9977 to 5187. [2021-06-05 03:43:38,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5187 states, 5186 states have (on average 4.741419205553413) internal successors, (24589), 5186 states have internal predecessors, (24589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:38,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 5187 states and 24589 transitions. [2021-06-05 03:43:38,766 INFO L78 Accepts]: Start accepts. Automaton has 5187 states and 24589 transitions. Word has length 29 [2021-06-05 03:43:38,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:38,766 INFO L482 AbstractCegarLoop]: Abstraction has 5187 states and 24589 transitions. [2021-06-05 03:43:38,766 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:38,766 INFO L276 IsEmpty]: Start isEmpty. Operand 5187 states and 24589 transitions. [2021-06-05 03:43:38,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:38,775 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:38,775 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:38,775 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable571 [2021-06-05 03:43:38,775 INFO L430 AbstractCegarLoop]: === Iteration 573 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:38,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:38,775 INFO L82 PathProgramCache]: Analyzing trace with hash -832110709, now seen corresponding path program 568 times [2021-06-05 03:43:38,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:38,775 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977287092] [2021-06-05 03:43:38,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:38,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:38,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:38,877 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:38,877 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977287092] [2021-06-05 03:43:38,877 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977287092] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:38,877 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:38,877 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:38,877 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926588186] [2021-06-05 03:43:38,877 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:38,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:38,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:38,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:38,877 INFO L87 Difference]: Start difference. First operand 5187 states and 24589 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:38,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:38,998 INFO L93 Difference]: Finished difference Result 10448 states and 46683 transitions. [2021-06-05 03:43:38,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:38,998 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:38,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:39,024 INFO L225 Difference]: With dead ends: 10448 [2021-06-05 03:43:39,024 INFO L226 Difference]: Without dead ends: 9929 [2021-06-05 03:43:39,024 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 125.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:39,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9929 states. [2021-06-05 03:43:39,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9929 to 5139. [2021-06-05 03:43:39,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5139 states, 5138 states have (on average 4.746788633709615) internal successors, (24389), 5138 states have internal predecessors, (24389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:39,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5139 states to 5139 states and 24389 transitions. [2021-06-05 03:43:39,243 INFO L78 Accepts]: Start accepts. Automaton has 5139 states and 24389 transitions. Word has length 29 [2021-06-05 03:43:39,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:39,243 INFO L482 AbstractCegarLoop]: Abstraction has 5139 states and 24389 transitions. [2021-06-05 03:43:39,244 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:39,244 INFO L276 IsEmpty]: Start isEmpty. Operand 5139 states and 24389 transitions. [2021-06-05 03:43:39,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:39,252 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:39,252 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:39,252 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable572 [2021-06-05 03:43:39,252 INFO L430 AbstractCegarLoop]: === Iteration 574 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:39,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:39,252 INFO L82 PathProgramCache]: Analyzing trace with hash 1620898541, now seen corresponding path program 569 times [2021-06-05 03:43:39,252 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:39,253 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583960561] [2021-06-05 03:43:39,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:39,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:39,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:39,355 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:39,355 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583960561] [2021-06-05 03:43:39,355 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583960561] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:39,355 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:39,355 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:39,355 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140763939] [2021-06-05 03:43:39,355 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:39,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:39,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:39,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:39,355 INFO L87 Difference]: Start difference. First operand 5139 states and 24389 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:39,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:39,468 INFO L93 Difference]: Finished difference Result 10540 states and 47123 transitions. [2021-06-05 03:43:39,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:39,468 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:39,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:39,494 INFO L225 Difference]: With dead ends: 10540 [2021-06-05 03:43:39,494 INFO L226 Difference]: Without dead ends: 10065 [2021-06-05 03:43:39,494 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 126.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:39,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10065 states. [2021-06-05 03:43:39,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10065 to 5215. [2021-06-05 03:43:39,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5215 states, 5214 states have (on average 4.732834675872651) internal successors, (24677), 5214 states have internal predecessors, (24677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:39,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5215 states to 5215 states and 24677 transitions. [2021-06-05 03:43:39,712 INFO L78 Accepts]: Start accepts. Automaton has 5215 states and 24677 transitions. Word has length 29 [2021-06-05 03:43:39,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:39,712 INFO L482 AbstractCegarLoop]: Abstraction has 5215 states and 24677 transitions. [2021-06-05 03:43:39,712 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:39,712 INFO L276 IsEmpty]: Start isEmpty. Operand 5215 states and 24677 transitions. [2021-06-05 03:43:39,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:39,721 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:39,721 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:39,721 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable573 [2021-06-05 03:43:39,721 INFO L430 AbstractCegarLoop]: === Iteration 575 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:39,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:39,722 INFO L82 PathProgramCache]: Analyzing trace with hash -422438453, now seen corresponding path program 570 times [2021-06-05 03:43:39,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:39,722 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445167166] [2021-06-05 03:43:39,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:39,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:39,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:39,824 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:39,824 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445167166] [2021-06-05 03:43:39,824 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445167166] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:39,824 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:39,824 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:39,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329616363] [2021-06-05 03:43:39,825 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:39,825 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:39,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:39,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:39,825 INFO L87 Difference]: Start difference. First operand 5215 states and 24677 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:39,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:39,943 INFO L93 Difference]: Finished difference Result 10536 states and 47035 transitions. [2021-06-05 03:43:39,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:39,944 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:39,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:39,968 INFO L225 Difference]: With dead ends: 10536 [2021-06-05 03:43:39,968 INFO L226 Difference]: Without dead ends: 9965 [2021-06-05 03:43:39,968 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 127.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:40,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9965 states. [2021-06-05 03:43:40,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9965 to 5115. [2021-06-05 03:43:40,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5115 states, 5114 states have (on average 4.752639812280016) internal successors, (24305), 5114 states have internal predecessors, (24305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:40,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5115 states to 5115 states and 24305 transitions. [2021-06-05 03:43:40,182 INFO L78 Accepts]: Start accepts. Automaton has 5115 states and 24305 transitions. Word has length 29 [2021-06-05 03:43:40,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:40,183 INFO L482 AbstractCegarLoop]: Abstraction has 5115 states and 24305 transitions. [2021-06-05 03:43:40,183 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:40,183 INFO L276 IsEmpty]: Start isEmpty. Operand 5115 states and 24305 transitions. [2021-06-05 03:43:40,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:40,191 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:40,191 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:40,191 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable574 [2021-06-05 03:43:40,191 INFO L430 AbstractCegarLoop]: === Iteration 576 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:40,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:40,192 INFO L82 PathProgramCache]: Analyzing trace with hash 1452555557, now seen corresponding path program 571 times [2021-06-05 03:43:40,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:40,192 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701875271] [2021-06-05 03:43:40,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:40,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:40,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:40,314 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:40,314 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701875271] [2021-06-05 03:43:40,314 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701875271] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:40,314 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:40,314 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:40,314 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902667758] [2021-06-05 03:43:40,315 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:40,315 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:40,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:40,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:40,315 INFO L87 Difference]: Start difference. First operand 5115 states and 24305 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:40,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:40,423 INFO L93 Difference]: Finished difference Result 10396 states and 46507 transitions. [2021-06-05 03:43:40,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:40,423 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:40,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:40,448 INFO L225 Difference]: With dead ends: 10396 [2021-06-05 03:43:40,448 INFO L226 Difference]: Without dead ends: 9981 [2021-06-05 03:43:40,448 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 129.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:40,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9981 states. [2021-06-05 03:43:40,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9981 to 5187. [2021-06-05 03:43:40,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5187 states, 5186 states have (on average 4.744504435017355) internal successors, (24605), 5186 states have internal predecessors, (24605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:40,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 5187 states and 24605 transitions. [2021-06-05 03:43:40,665 INFO L78 Accepts]: Start accepts. Automaton has 5187 states and 24605 transitions. Word has length 29 [2021-06-05 03:43:40,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:40,665 INFO L482 AbstractCegarLoop]: Abstraction has 5187 states and 24605 transitions. [2021-06-05 03:43:40,665 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:40,665 INFO L276 IsEmpty]: Start isEmpty. Operand 5187 states and 24605 transitions. [2021-06-05 03:43:40,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:40,674 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:40,674 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:40,674 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable575 [2021-06-05 03:43:40,674 INFO L430 AbstractCegarLoop]: === Iteration 577 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:40,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:40,675 INFO L82 PathProgramCache]: Analyzing trace with hash -1761349113, now seen corresponding path program 572 times [2021-06-05 03:43:40,675 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:40,675 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707405971] [2021-06-05 03:43:40,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:40,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:40,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:40,797 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:40,797 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707405971] [2021-06-05 03:43:40,797 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707405971] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:40,797 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:40,797 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:40,797 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21031888] [2021-06-05 03:43:40,797 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:40,797 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:40,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:40,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:40,797 INFO L87 Difference]: Start difference. First operand 5187 states and 24605 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:40,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:40,922 INFO L93 Difference]: Finished difference Result 10456 states and 46723 transitions. [2021-06-05 03:43:40,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:40,922 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:40,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:40,947 INFO L225 Difference]: With dead ends: 10456 [2021-06-05 03:43:40,947 INFO L226 Difference]: Without dead ends: 9933 [2021-06-05 03:43:40,947 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 146.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:41,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9933 states. [2021-06-05 03:43:41,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9933 to 5139. [2021-06-05 03:43:41,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5139 states, 5138 states have (on average 4.749902685869988) internal successors, (24405), 5138 states have internal predecessors, (24405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:41,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5139 states to 5139 states and 24405 transitions. [2021-06-05 03:43:41,161 INFO L78 Accepts]: Start accepts. Automaton has 5139 states and 24405 transitions. Word has length 29 [2021-06-05 03:43:41,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:41,161 INFO L482 AbstractCegarLoop]: Abstraction has 5139 states and 24405 transitions. [2021-06-05 03:43:41,161 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:41,162 INFO L276 IsEmpty]: Start isEmpty. Operand 5139 states and 24405 transitions. [2021-06-05 03:43:41,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:41,170 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:41,170 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:41,170 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable576 [2021-06-05 03:43:41,170 INFO L430 AbstractCegarLoop]: === Iteration 578 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:41,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:41,170 INFO L82 PathProgramCache]: Analyzing trace with hash 971653511, now seen corresponding path program 573 times [2021-06-05 03:43:41,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:41,170 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237984184] [2021-06-05 03:43:41,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:41,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:41,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:41,295 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:41,295 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237984184] [2021-06-05 03:43:41,295 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237984184] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:41,295 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:41,295 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:41,295 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503728911] [2021-06-05 03:43:41,295 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:41,295 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:41,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:41,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:41,296 INFO L87 Difference]: Start difference. First operand 5139 states and 24405 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:41,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:41,394 INFO L93 Difference]: Finished difference Result 10392 states and 46471 transitions. [2021-06-05 03:43:41,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:41,394 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:41,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:41,419 INFO L225 Difference]: With dead ends: 10392 [2021-06-05 03:43:41,419 INFO L226 Difference]: Without dead ends: 9977 [2021-06-05 03:43:41,419 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 132.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:41,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9977 states. [2021-06-05 03:43:41,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9977 to 5187. [2021-06-05 03:43:41,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5187 states, 5186 states have (on average 4.739876590821442) internal successors, (24581), 5186 states have internal predecessors, (24581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:41,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 5187 states and 24581 transitions. [2021-06-05 03:43:41,634 INFO L78 Accepts]: Start accepts. Automaton has 5187 states and 24581 transitions. Word has length 29 [2021-06-05 03:43:41,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:41,634 INFO L482 AbstractCegarLoop]: Abstraction has 5187 states and 24581 transitions. [2021-06-05 03:43:41,634 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:41,634 INFO L276 IsEmpty]: Start isEmpty. Operand 5187 states and 24581 transitions. [2021-06-05 03:43:41,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:41,642 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:41,642 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:41,643 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable577 [2021-06-05 03:43:41,643 INFO L430 AbstractCegarLoop]: === Iteration 579 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:41,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:41,643 INFO L82 PathProgramCache]: Analyzing trace with hash -716592761, now seen corresponding path program 574 times [2021-06-05 03:43:41,643 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:41,643 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540707282] [2021-06-05 03:43:41,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:41,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:41,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:41,767 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:41,767 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540707282] [2021-06-05 03:43:41,767 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540707282] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:41,767 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:41,767 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:41,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296956935] [2021-06-05 03:43:41,767 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:41,767 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:41,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:41,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:41,767 INFO L87 Difference]: Start difference. First operand 5187 states and 24581 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:41,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:41,875 INFO L93 Difference]: Finished difference Result 10448 states and 46675 transitions. [2021-06-05 03:43:41,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:41,875 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:41,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:41,899 INFO L225 Difference]: With dead ends: 10448 [2021-06-05 03:43:41,899 INFO L226 Difference]: Without dead ends: 9929 [2021-06-05 03:43:41,899 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 148.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:42,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9929 states. [2021-06-05 03:43:42,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9929 to 5139. [2021-06-05 03:43:42,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5139 states, 5138 states have (on average 4.745231607629428) internal successors, (24381), 5138 states have internal predecessors, (24381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:42,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5139 states to 5139 states and 24381 transitions. [2021-06-05 03:43:42,115 INFO L78 Accepts]: Start accepts. Automaton has 5139 states and 24381 transitions. Word has length 29 [2021-06-05 03:43:42,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:42,115 INFO L482 AbstractCegarLoop]: Abstraction has 5139 states and 24381 transitions. [2021-06-05 03:43:42,115 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:42,115 INFO L276 IsEmpty]: Start isEmpty. Operand 5139 states and 24381 transitions. [2021-06-05 03:43:42,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:42,124 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:42,124 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:42,124 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable578 [2021-06-05 03:43:42,124 INFO L430 AbstractCegarLoop]: === Iteration 580 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:42,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:42,124 INFO L82 PathProgramCache]: Analyzing trace with hash 1359658473, now seen corresponding path program 575 times [2021-06-05 03:43:42,124 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:42,124 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019908809] [2021-06-05 03:43:42,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:42,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:42,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:42,238 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:42,238 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019908809] [2021-06-05 03:43:42,238 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019908809] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:42,238 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:42,238 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:42,238 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387337219] [2021-06-05 03:43:42,238 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:42,239 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:42,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:42,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:42,239 INFO L87 Difference]: Start difference. First operand 5139 states and 24381 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:42,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:42,345 INFO L93 Difference]: Finished difference Result 10540 states and 47115 transitions. [2021-06-05 03:43:42,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:42,345 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:42,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:42,370 INFO L225 Difference]: With dead ends: 10540 [2021-06-05 03:43:42,370 INFO L226 Difference]: Without dead ends: 10065 [2021-06-05 03:43:42,370 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 138.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:42,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10065 states. [2021-06-05 03:43:42,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10065 to 5215. [2021-06-05 03:43:42,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5215 states, 5214 states have (on average 4.731300345224396) internal successors, (24669), 5214 states have internal predecessors, (24669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:42,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5215 states to 5215 states and 24669 transitions. [2021-06-05 03:43:42,588 INFO L78 Accepts]: Start accepts. Automaton has 5215 states and 24669 transitions. Word has length 29 [2021-06-05 03:43:42,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:42,588 INFO L482 AbstractCegarLoop]: Abstraction has 5215 states and 24669 transitions. [2021-06-05 03:43:42,588 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:42,588 INFO L276 IsEmpty]: Start isEmpty. Operand 5215 states and 24669 transitions. [2021-06-05 03:43:42,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:42,597 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:42,597 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:42,597 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable579 [2021-06-05 03:43:42,597 INFO L430 AbstractCegarLoop]: === Iteration 581 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:42,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:42,597 INFO L82 PathProgramCache]: Analyzing trace with hash 512861511, now seen corresponding path program 576 times [2021-06-05 03:43:42,597 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:42,597 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063067743] [2021-06-05 03:43:42,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:42,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:42,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:42,710 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:42,710 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063067743] [2021-06-05 03:43:42,710 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063067743] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:42,710 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:42,710 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:42,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881991785] [2021-06-05 03:43:42,710 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:42,710 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:42,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:42,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:42,711 INFO L87 Difference]: Start difference. First operand 5215 states and 24669 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:42,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:42,824 INFO L93 Difference]: Finished difference Result 10536 states and 47027 transitions. [2021-06-05 03:43:42,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:42,824 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:42,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:42,848 INFO L225 Difference]: With dead ends: 10536 [2021-06-05 03:43:42,849 INFO L226 Difference]: Without dead ends: 9957 [2021-06-05 03:43:42,849 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 136.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:42,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9957 states. [2021-06-05 03:43:43,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9957 to 5107. [2021-06-05 03:43:43,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5107 states, 5106 states have (on average 4.755385820603212) internal successors, (24281), 5106 states have internal predecessors, (24281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:43,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5107 states to 5107 states and 24281 transitions. [2021-06-05 03:43:43,062 INFO L78 Accepts]: Start accepts. Automaton has 5107 states and 24281 transitions. Word has length 29 [2021-06-05 03:43:43,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:43,062 INFO L482 AbstractCegarLoop]: Abstraction has 5107 states and 24281 transitions. [2021-06-05 03:43:43,062 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:43,062 INFO L276 IsEmpty]: Start isEmpty. Operand 5107 states and 24281 transitions. [2021-06-05 03:43:43,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:43,070 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:43,070 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:43,070 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable580 [2021-06-05 03:43:43,070 INFO L430 AbstractCegarLoop]: === Iteration 582 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:43,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:43,071 INFO L82 PathProgramCache]: Analyzing trace with hash 1432828325, now seen corresponding path program 577 times [2021-06-05 03:43:43,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:43,071 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265873058] [2021-06-05 03:43:43,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:43,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:43,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:43,196 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:43,197 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265873058] [2021-06-05 03:43:43,197 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265873058] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:43,197 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:43,197 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:43,197 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063630921] [2021-06-05 03:43:43,197 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:43,197 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:43,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:43,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:43,197 INFO L87 Difference]: Start difference. First operand 5107 states and 24281 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:43,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:43,305 INFO L93 Difference]: Finished difference Result 10638 states and 47650 transitions. [2021-06-05 03:43:43,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:43,305 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:43,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:43,330 INFO L225 Difference]: With dead ends: 10638 [2021-06-05 03:43:43,330 INFO L226 Difference]: Without dead ends: 10161 [2021-06-05 03:43:43,330 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 150.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:43,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10161 states. [2021-06-05 03:43:43,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10161 to 5191. [2021-06-05 03:43:43,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.7493256262042385) internal successors, (24649), 5190 states have internal predecessors, (24649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:43,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24649 transitions. [2021-06-05 03:43:43,548 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24649 transitions. Word has length 29 [2021-06-05 03:43:43,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:43,548 INFO L482 AbstractCegarLoop]: Abstraction has 5191 states and 24649 transitions. [2021-06-05 03:43:43,548 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:43,548 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24649 transitions. [2021-06-05 03:43:43,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:43,557 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:43,557 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:43,557 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable581 [2021-06-05 03:43:43,557 INFO L430 AbstractCegarLoop]: === Iteration 583 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:43,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:43,557 INFO L82 PathProgramCache]: Analyzing trace with hash -1781076345, now seen corresponding path program 578 times [2021-06-05 03:43:43,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:43,557 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714716967] [2021-06-05 03:43:43,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:43,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:43,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:43,684 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:43,684 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714716967] [2021-06-05 03:43:43,684 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714716967] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:43,684 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:43,684 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:43,684 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075079825] [2021-06-05 03:43:43,684 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:43,684 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:43,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:43,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:43,684 INFO L87 Difference]: Start difference. First operand 5191 states and 24649 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:43,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:43,783 INFO L93 Difference]: Finished difference Result 10576 states and 47333 transitions. [2021-06-05 03:43:43,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:43,783 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:43,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:43,808 INFO L225 Difference]: With dead ends: 10576 [2021-06-05 03:43:43,808 INFO L226 Difference]: Without dead ends: 10113 [2021-06-05 03:43:43,808 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 134.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:43,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10113 states. [2021-06-05 03:43:44,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10113 to 5143. [2021-06-05 03:43:44,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.754764683002723) internal successors, (24449), 5142 states have internal predecessors, (24449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:44,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24449 transitions. [2021-06-05 03:43:44,023 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24449 transitions. Word has length 29 [2021-06-05 03:43:44,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:44,024 INFO L482 AbstractCegarLoop]: Abstraction has 5143 states and 24449 transitions. [2021-06-05 03:43:44,024 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:44,024 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24449 transitions. [2021-06-05 03:43:44,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:44,032 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:44,032 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:44,032 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable582 [2021-06-05 03:43:44,032 INFO L430 AbstractCegarLoop]: === Iteration 584 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:44,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:44,032 INFO L82 PathProgramCache]: Analyzing trace with hash 951926279, now seen corresponding path program 579 times [2021-06-05 03:43:44,033 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:44,033 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927388844] [2021-06-05 03:43:44,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:44,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:44,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:44,152 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:44,152 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927388844] [2021-06-05 03:43:44,152 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927388844] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:44,152 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:44,152 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:44,152 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607986059] [2021-06-05 03:43:44,152 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:44,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:44,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:44,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:44,153 INFO L87 Difference]: Start difference. First operand 5143 states and 24449 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:44,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:44,264 INFO L93 Difference]: Finished difference Result 10728 states and 48037 transitions. [2021-06-05 03:43:44,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:44,265 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:44,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:44,290 INFO L225 Difference]: With dead ends: 10728 [2021-06-05 03:43:44,291 INFO L226 Difference]: Without dead ends: 10251 [2021-06-05 03:43:44,291 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 144.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:44,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10251 states. [2021-06-05 03:43:44,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10251 to 5221. [2021-06-05 03:43:44,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5221 states, 5220 states have (on average 4.739846743295019) internal successors, (24742), 5220 states have internal predecessors, (24742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:44,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5221 states to 5221 states and 24742 transitions. [2021-06-05 03:43:44,510 INFO L78 Accepts]: Start accepts. Automaton has 5221 states and 24742 transitions. Word has length 29 [2021-06-05 03:43:44,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:44,510 INFO L482 AbstractCegarLoop]: Abstraction has 5221 states and 24742 transitions. [2021-06-05 03:43:44,510 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:44,510 INFO L276 IsEmpty]: Start isEmpty. Operand 5221 states and 24742 transitions. [2021-06-05 03:43:44,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:44,519 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:44,519 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:44,519 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable583 [2021-06-05 03:43:44,519 INFO L430 AbstractCegarLoop]: === Iteration 585 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:44,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:44,519 INFO L82 PathProgramCache]: Analyzing trace with hash -736319993, now seen corresponding path program 580 times [2021-06-05 03:43:44,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:44,519 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178911423] [2021-06-05 03:43:44,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:44,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:44,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:44,638 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:44,638 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178911423] [2021-06-05 03:43:44,638 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178911423] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:44,638 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:44,638 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:44,638 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895251714] [2021-06-05 03:43:44,638 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:44,638 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:44,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:44,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:44,639 INFO L87 Difference]: Start difference. First operand 5221 states and 24742 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:44,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:44,748 INFO L93 Difference]: Finished difference Result 10726 states and 47954 transitions. [2021-06-05 03:43:44,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:44,748 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:44,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:44,773 INFO L225 Difference]: With dead ends: 10726 [2021-06-05 03:43:44,773 INFO L226 Difference]: Without dead ends: 10173 [2021-06-05 03:43:44,773 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 143.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:44,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10173 states. [2021-06-05 03:43:44,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10173 to 5143. [2021-06-05 03:43:44,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.750097238428627) internal successors, (24425), 5142 states have internal predecessors, (24425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:44,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24425 transitions. [2021-06-05 03:43:44,990 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24425 transitions. Word has length 29 [2021-06-05 03:43:44,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:44,991 INFO L482 AbstractCegarLoop]: Abstraction has 5143 states and 24425 transitions. [2021-06-05 03:43:44,991 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:44,991 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24425 transitions. [2021-06-05 03:43:44,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:44,999 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:44,999 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:44,999 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable584 [2021-06-05 03:43:45,000 INFO L430 AbstractCegarLoop]: === Iteration 586 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:45,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:45,000 INFO L82 PathProgramCache]: Analyzing trace with hash 1339931241, now seen corresponding path program 581 times [2021-06-05 03:43:45,000 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:45,000 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239828828] [2021-06-05 03:43:45,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:45,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:45,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:45,129 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:45,129 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239828828] [2021-06-05 03:43:45,129 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239828828] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:45,130 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:45,130 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:45,130 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193868498] [2021-06-05 03:43:45,130 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:45,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:45,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:45,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:45,130 INFO L87 Difference]: Start difference. First operand 5143 states and 24425 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:45,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:45,260 INFO L93 Difference]: Finished difference Result 10574 states and 47328 transitions. [2021-06-05 03:43:45,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:45,261 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:45,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:45,287 INFO L225 Difference]: With dead ends: 10574 [2021-06-05 03:43:45,287 INFO L226 Difference]: Without dead ends: 10159 [2021-06-05 03:43:45,287 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 137.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:45,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10159 states. [2021-06-05 03:43:45,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10159 to 5191. [2021-06-05 03:43:45,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.740077071290944) internal successors, (24601), 5190 states have internal predecessors, (24601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:45,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24601 transitions. [2021-06-05 03:43:45,500 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24601 transitions. Word has length 29 [2021-06-05 03:43:45,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:45,501 INFO L482 AbstractCegarLoop]: Abstraction has 5191 states and 24601 transitions. [2021-06-05 03:43:45,501 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:45,501 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24601 transitions. [2021-06-05 03:43:45,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:45,509 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:45,509 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:45,509 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable585 [2021-06-05 03:43:45,509 INFO L430 AbstractCegarLoop]: === Iteration 587 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:45,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:45,510 INFO L82 PathProgramCache]: Analyzing trace with hash 493134279, now seen corresponding path program 582 times [2021-06-05 03:43:45,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:45,510 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567373321] [2021-06-05 03:43:45,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:45,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:45,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:45,636 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:45,636 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567373321] [2021-06-05 03:43:45,636 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567373321] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:45,636 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:45,636 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:45,636 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572687340] [2021-06-05 03:43:45,636 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:45,636 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:45,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:45,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:45,636 INFO L87 Difference]: Start difference. First operand 5191 states and 24601 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:45,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:45,746 INFO L93 Difference]: Finished difference Result 10634 states and 47544 transitions. [2021-06-05 03:43:45,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:45,746 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:45,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:45,771 INFO L225 Difference]: With dead ends: 10634 [2021-06-05 03:43:45,771 INFO L226 Difference]: Without dead ends: 10087 [2021-06-05 03:43:45,772 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 150.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:45,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10087 states. [2021-06-05 03:43:45,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10087 to 5119. [2021-06-05 03:43:45,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5119 states, 5118 states have (on average 4.755177803829621) internal successors, (24337), 5118 states have internal predecessors, (24337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:45,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5119 states to 5119 states and 24337 transitions. [2021-06-05 03:43:45,988 INFO L78 Accepts]: Start accepts. Automaton has 5119 states and 24337 transitions. Word has length 29 [2021-06-05 03:43:45,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:45,988 INFO L482 AbstractCegarLoop]: Abstraction has 5119 states and 24337 transitions. [2021-06-05 03:43:45,988 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:45,988 INFO L276 IsEmpty]: Start isEmpty. Operand 5119 states and 24337 transitions. [2021-06-05 03:43:45,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:45,996 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:45,996 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:45,996 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable586 [2021-06-05 03:43:45,996 INFO L430 AbstractCegarLoop]: === Iteration 588 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:45,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:45,997 INFO L82 PathProgramCache]: Analyzing trace with hash -1152537209, now seen corresponding path program 583 times [2021-06-05 03:43:45,997 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:45,997 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504112488] [2021-06-05 03:43:45,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:45,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:46,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:46,125 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:46,125 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504112488] [2021-06-05 03:43:46,125 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504112488] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:46,125 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:46,125 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:46,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346074456] [2021-06-05 03:43:46,125 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:46,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:46,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:46,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:46,125 INFO L87 Difference]: Start difference. First operand 5119 states and 24337 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:46,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:46,250 INFO L93 Difference]: Finished difference Result 10632 states and 47619 transitions. [2021-06-05 03:43:46,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:46,251 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:46,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:46,276 INFO L225 Difference]: With dead ends: 10632 [2021-06-05 03:43:46,277 INFO L226 Difference]: Without dead ends: 10155 [2021-06-05 03:43:46,277 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 151.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:46,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10155 states. [2021-06-05 03:43:46,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10155 to 5191. [2021-06-05 03:43:46,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.747013487475916) internal successors, (24637), 5190 states have internal predecessors, (24637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:46,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24637 transitions. [2021-06-05 03:43:46,498 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24637 transitions. Word has length 29 [2021-06-05 03:43:46,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:46,498 INFO L482 AbstractCegarLoop]: Abstraction has 5191 states and 24637 transitions. [2021-06-05 03:43:46,498 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:46,498 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24637 transitions. [2021-06-05 03:43:46,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:46,507 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:46,507 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:46,507 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable587 [2021-06-05 03:43:46,507 INFO L430 AbstractCegarLoop]: === Iteration 589 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:46,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:46,507 INFO L82 PathProgramCache]: Analyzing trace with hash -71474583, now seen corresponding path program 584 times [2021-06-05 03:43:46,507 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:46,507 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583533693] [2021-06-05 03:43:46,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:46,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:46,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:46,634 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:46,634 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583533693] [2021-06-05 03:43:46,634 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583533693] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:46,634 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:46,634 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:46,634 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968420795] [2021-06-05 03:43:46,634 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:46,634 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:46,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:46,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:46,634 INFO L87 Difference]: Start difference. First operand 5191 states and 24637 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:46,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:46,742 INFO L93 Difference]: Finished difference Result 10570 states and 47302 transitions. [2021-06-05 03:43:46,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:46,742 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:46,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:46,767 INFO L225 Difference]: With dead ends: 10570 [2021-06-05 03:43:46,768 INFO L226 Difference]: Without dead ends: 10107 [2021-06-05 03:43:46,768 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 133.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:46,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10107 states. [2021-06-05 03:43:46,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10107 to 5143. [2021-06-05 03:43:46,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.7524309607156745) internal successors, (24437), 5142 states have internal predecessors, (24437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:46,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24437 transitions. [2021-06-05 03:43:46,986 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24437 transitions. Word has length 29 [2021-06-05 03:43:46,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:46,986 INFO L482 AbstractCegarLoop]: Abstraction has 5143 states and 24437 transitions. [2021-06-05 03:43:46,987 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:46,987 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24437 transitions. [2021-06-05 03:43:46,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:46,995 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:46,995 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:46,995 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable588 [2021-06-05 03:43:46,995 INFO L430 AbstractCegarLoop]: === Iteration 590 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:46,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:46,996 INFO L82 PathProgramCache]: Analyzing trace with hash -59566713, now seen corresponding path program 585 times [2021-06-05 03:43:46,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:46,996 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038558147] [2021-06-05 03:43:46,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:46,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:47,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:47,112 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:47,112 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038558147] [2021-06-05 03:43:47,113 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038558147] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:47,113 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:47,113 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:47,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655799725] [2021-06-05 03:43:47,113 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:47,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:47,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:47,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:47,113 INFO L87 Difference]: Start difference. First operand 5143 states and 24437 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:47,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:47,226 INFO L93 Difference]: Finished difference Result 10716 states and 47987 transitions. [2021-06-05 03:43:47,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:47,227 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:47,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:47,252 INFO L225 Difference]: With dead ends: 10716 [2021-06-05 03:43:47,252 INFO L226 Difference]: Without dead ends: 10239 [2021-06-05 03:43:47,253 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 141.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:47,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10239 states. [2021-06-05 03:43:47,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10239 to 5219. [2021-06-05 03:43:47,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5219 states, 5218 states have (on average 4.738405519356075) internal successors, (24725), 5218 states have internal predecessors, (24725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:47,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5219 states to 5219 states and 24725 transitions. [2021-06-05 03:43:47,475 INFO L78 Accepts]: Start accepts. Automaton has 5219 states and 24725 transitions. Word has length 29 [2021-06-05 03:43:47,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:47,475 INFO L482 AbstractCegarLoop]: Abstraction has 5219 states and 24725 transitions. [2021-06-05 03:43:47,475 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:47,475 INFO L276 IsEmpty]: Start isEmpty. Operand 5219 states and 24725 transitions. [2021-06-05 03:43:47,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:47,483 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:47,483 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:47,484 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable589 [2021-06-05 03:43:47,484 INFO L430 AbstractCegarLoop]: === Iteration 591 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:47,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:47,484 INFO L82 PathProgramCache]: Analyzing trace with hash -9998969, now seen corresponding path program 586 times [2021-06-05 03:43:47,484 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:47,484 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942453454] [2021-06-05 03:43:47,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:47,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:47,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:47,600 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:47,600 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942453454] [2021-06-05 03:43:47,600 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942453454] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:47,600 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:47,600 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:47,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679044677] [2021-06-05 03:43:47,600 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:47,600 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:47,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:47,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:47,600 INFO L87 Difference]: Start difference. First operand 5219 states and 24725 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:47,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:47,711 INFO L93 Difference]: Finished difference Result 10710 states and 47894 transitions. [2021-06-05 03:43:47,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:47,712 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:47,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:47,736 INFO L225 Difference]: With dead ends: 10710 [2021-06-05 03:43:47,737 INFO L226 Difference]: Without dead ends: 10163 [2021-06-05 03:43:47,737 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 139.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:47,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10163 states. [2021-06-05 03:43:47,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10163 to 5143. [2021-06-05 03:43:47,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.747763516141579) internal successors, (24413), 5142 states have internal predecessors, (24413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:47,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24413 transitions. [2021-06-05 03:43:47,954 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24413 transitions. Word has length 29 [2021-06-05 03:43:47,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:47,954 INFO L482 AbstractCegarLoop]: Abstraction has 5143 states and 24413 transitions. [2021-06-05 03:43:47,954 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:47,954 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24413 transitions. [2021-06-05 03:43:47,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:47,963 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:47,963 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:47,963 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable590 [2021-06-05 03:43:47,963 INFO L430 AbstractCegarLoop]: === Iteration 592 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:47,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:47,963 INFO L82 PathProgramCache]: Analyzing trace with hash 328438249, now seen corresponding path program 587 times [2021-06-05 03:43:47,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:47,963 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571342926] [2021-06-05 03:43:47,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:47,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:48,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:48,093 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:48,093 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571342926] [2021-06-05 03:43:48,093 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571342926] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:48,093 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:48,093 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:48,093 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489400960] [2021-06-05 03:43:48,094 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:48,094 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:48,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:48,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:48,094 INFO L87 Difference]: Start difference. First operand 5143 states and 24413 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:48,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:48,186 INFO L93 Difference]: Finished difference Result 10564 states and 47285 transitions. [2021-06-05 03:43:48,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:48,187 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:48,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:48,212 INFO L225 Difference]: With dead ends: 10564 [2021-06-05 03:43:48,212 INFO L226 Difference]: Without dead ends: 10149 [2021-06-05 03:43:48,213 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 137.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:48,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10149 states. [2021-06-05 03:43:48,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10149 to 5191. [2021-06-05 03:43:48,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.73776493256262) internal successors, (24589), 5190 states have internal predecessors, (24589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:48,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24589 transitions. [2021-06-05 03:43:48,432 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24589 transitions. Word has length 29 [2021-06-05 03:43:48,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:48,432 INFO L482 AbstractCegarLoop]: Abstraction has 5191 states and 24589 transitions. [2021-06-05 03:43:48,432 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:48,432 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24589 transitions. [2021-06-05 03:43:48,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:48,441 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:48,441 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:48,441 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable591 [2021-06-05 03:43:48,441 INFO L430 AbstractCegarLoop]: === Iteration 593 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:48,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:48,441 INFO L82 PathProgramCache]: Analyzing trace with hash -1787641401, now seen corresponding path program 588 times [2021-06-05 03:43:48,441 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:48,441 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247876927] [2021-06-05 03:43:48,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:48,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:48,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:48,574 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:48,574 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247876927] [2021-06-05 03:43:48,574 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247876927] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:48,574 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:48,574 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:48,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832504207] [2021-06-05 03:43:48,574 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:48,574 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:48,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:48,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:48,574 INFO L87 Difference]: Start difference. First operand 5191 states and 24589 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:48,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:48,686 INFO L93 Difference]: Finished difference Result 10620 states and 47489 transitions. [2021-06-05 03:43:48,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:48,686 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:48,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:48,711 INFO L225 Difference]: With dead ends: 10620 [2021-06-05 03:43:48,711 INFO L226 Difference]: Without dead ends: 10077 [2021-06-05 03:43:48,712 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 156.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:48,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10077 states. [2021-06-05 03:43:48,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10077 to 5119. [2021-06-05 03:43:48,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5119 states, 5118 states have (on average 4.75283313794451) internal successors, (24325), 5118 states have internal predecessors, (24325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:48,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5119 states to 5119 states and 24325 transitions. [2021-06-05 03:43:48,933 INFO L78 Accepts]: Start accepts. Automaton has 5119 states and 24325 transitions. Word has length 29 [2021-06-05 03:43:48,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:48,933 INFO L482 AbstractCegarLoop]: Abstraction has 5119 states and 24325 transitions. [2021-06-05 03:43:48,933 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:48,933 INFO L276 IsEmpty]: Start isEmpty. Operand 5119 states and 24325 transitions. [2021-06-05 03:43:48,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:48,942 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:48,942 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:48,942 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable592 [2021-06-05 03:43:48,942 INFO L430 AbstractCegarLoop]: === Iteration 594 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:48,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:48,942 INFO L82 PathProgramCache]: Analyzing trace with hash -1941923479, now seen corresponding path program 589 times [2021-06-05 03:43:48,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:48,942 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923426745] [2021-06-05 03:43:48,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:48,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:49,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:49,053 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:49,053 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923426745] [2021-06-05 03:43:49,053 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923426745] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:49,053 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:49,053 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:49,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744197124] [2021-06-05 03:43:49,053 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:49,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:49,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:49,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:49,054 INFO L87 Difference]: Start difference. First operand 5119 states and 24325 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:49,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:49,163 INFO L93 Difference]: Finished difference Result 10854 states and 48646 transitions. [2021-06-05 03:43:49,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:49,164 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:49,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:49,189 INFO L225 Difference]: With dead ends: 10854 [2021-06-05 03:43:49,189 INFO L226 Difference]: Without dead ends: 10377 [2021-06-05 03:43:49,189 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 135.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:49,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10377 states. [2021-06-05 03:43:49,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10377 to 5235. [2021-06-05 03:43:49,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5235 states, 5234 states have (on average 4.741880015284677) internal successors, (24819), 5234 states have internal predecessors, (24819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:49,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5235 states to 5235 states and 24819 transitions. [2021-06-05 03:43:49,412 INFO L78 Accepts]: Start accepts. Automaton has 5235 states and 24819 transitions. Word has length 29 [2021-06-05 03:43:49,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:49,412 INFO L482 AbstractCegarLoop]: Abstraction has 5235 states and 24819 transitions. [2021-06-05 03:43:49,412 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:49,412 INFO L276 IsEmpty]: Start isEmpty. Operand 5235 states and 24819 transitions. [2021-06-05 03:43:49,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:49,421 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:49,421 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:49,421 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable593 [2021-06-05 03:43:49,421 INFO L430 AbstractCegarLoop]: === Iteration 595 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:49,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:49,421 INFO L82 PathProgramCache]: Analyzing trace with hash 664797545, now seen corresponding path program 590 times [2021-06-05 03:43:49,421 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:49,421 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479980669] [2021-06-05 03:43:49,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:49,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:49,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:49,531 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:49,531 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479980669] [2021-06-05 03:43:49,531 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479980669] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:49,531 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:49,531 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:49,531 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768497889] [2021-06-05 03:43:49,531 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:49,531 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:49,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:49,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:49,531 INFO L87 Difference]: Start difference. First operand 5235 states and 24819 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:49,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:49,641 INFO L93 Difference]: Finished difference Result 10852 states and 48563 transitions. [2021-06-05 03:43:49,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:49,641 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:49,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:49,666 INFO L225 Difference]: With dead ends: 10852 [2021-06-05 03:43:49,667 INFO L226 Difference]: Without dead ends: 10299 [2021-06-05 03:43:49,667 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 133.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:49,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10299 states. [2021-06-05 03:43:49,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10299 to 5157. [2021-06-05 03:43:49,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5157 states, 5156 states have (on average 4.749418153607448) internal successors, (24488), 5156 states have internal predecessors, (24488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:49,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5157 states to 5157 states and 24488 transitions. [2021-06-05 03:43:49,884 INFO L78 Accepts]: Start accepts. Automaton has 5157 states and 24488 transitions. Word has length 29 [2021-06-05 03:43:49,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:49,885 INFO L482 AbstractCegarLoop]: Abstraction has 5157 states and 24488 transitions. [2021-06-05 03:43:49,885 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:49,885 INFO L276 IsEmpty]: Start isEmpty. Operand 5157 states and 24488 transitions. [2021-06-05 03:43:49,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:49,893 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:49,893 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:49,893 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable594 [2021-06-05 03:43:49,893 INFO L430 AbstractCegarLoop]: === Iteration 596 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:49,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:49,894 INFO L82 PathProgramCache]: Analyzing trace with hash 329982279, now seen corresponding path program 591 times [2021-06-05 03:43:49,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:49,894 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472902725] [2021-06-05 03:43:49,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:49,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:50,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:50,002 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:50,002 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472902725] [2021-06-05 03:43:50,002 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472902725] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:50,002 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:50,002 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:50,002 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658746736] [2021-06-05 03:43:50,002 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:50,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:50,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:50,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:50,003 INFO L87 Difference]: Start difference. First operand 5157 states and 24488 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:50,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:50,116 INFO L93 Difference]: Finished difference Result 10848 states and 48589 transitions. [2021-06-05 03:43:50,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:50,116 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:50,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:50,141 INFO L225 Difference]: With dead ends: 10848 [2021-06-05 03:43:50,141 INFO L226 Difference]: Without dead ends: 10371 [2021-06-05 03:43:50,141 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 132.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:50,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10371 states. [2021-06-05 03:43:50,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10371 to 5233. [2021-06-05 03:43:50,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5233 states, 5232 states have (on average 4.735474006116208) internal successors, (24776), 5232 states have internal predecessors, (24776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:50,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5233 states to 5233 states and 24776 transitions. [2021-06-05 03:43:50,361 INFO L78 Accepts]: Start accepts. Automaton has 5233 states and 24776 transitions. Word has length 29 [2021-06-05 03:43:50,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:50,361 INFO L482 AbstractCegarLoop]: Abstraction has 5233 states and 24776 transitions. [2021-06-05 03:43:50,361 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:50,361 INFO L276 IsEmpty]: Start isEmpty. Operand 5233 states and 24776 transitions. [2021-06-05 03:43:50,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:50,370 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:50,370 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:50,370 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable595 [2021-06-05 03:43:50,370 INFO L430 AbstractCegarLoop]: === Iteration 597 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:50,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:50,370 INFO L82 PathProgramCache]: Analyzing trace with hash 1699602793, now seen corresponding path program 592 times [2021-06-05 03:43:50,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:50,371 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834180312] [2021-06-05 03:43:50,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:50,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:50,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:50,480 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:50,480 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834180312] [2021-06-05 03:43:50,480 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834180312] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:50,480 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:50,480 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:50,480 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935690087] [2021-06-05 03:43:50,481 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:50,481 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:50,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:50,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:50,481 INFO L87 Difference]: Start difference. First operand 5233 states and 24776 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:50,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:50,603 INFO L93 Difference]: Finished difference Result 10842 states and 48496 transitions. [2021-06-05 03:43:50,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:50,603 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:50,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:50,629 INFO L225 Difference]: With dead ends: 10842 [2021-06-05 03:43:50,629 INFO L226 Difference]: Without dead ends: 10295 [2021-06-05 03:43:50,629 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 134.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:50,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10295 states. [2021-06-05 03:43:50,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10295 to 5157. [2021-06-05 03:43:50,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5157 states, 5156 states have (on average 4.742048099301784) internal successors, (24450), 5156 states have internal predecessors, (24450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:50,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5157 states to 5157 states and 24450 transitions. [2021-06-05 03:43:50,852 INFO L78 Accepts]: Start accepts. Automaton has 5157 states and 24450 transitions. Word has length 29 [2021-06-05 03:43:50,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:50,852 INFO L482 AbstractCegarLoop]: Abstraction has 5157 states and 24450 transitions. [2021-06-05 03:43:50,852 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:50,852 INFO L276 IsEmpty]: Start isEmpty. Operand 5157 states and 24450 transitions. [2021-06-05 03:43:50,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:50,860 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:50,860 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:50,861 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable596 [2021-06-05 03:43:50,861 INFO L430 AbstractCegarLoop]: === Iteration 598 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:50,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:50,861 INFO L82 PathProgramCache]: Analyzing trace with hash 1054759273, now seen corresponding path program 593 times [2021-06-05 03:43:50,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:50,861 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328143660] [2021-06-05 03:43:50,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:50,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:50,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:50,972 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:50,972 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328143660] [2021-06-05 03:43:50,972 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328143660] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:50,972 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:50,972 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:50,972 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708183570] [2021-06-05 03:43:50,972 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:50,972 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:50,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:50,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:50,973 INFO L87 Difference]: Start difference. First operand 5157 states and 24450 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:51,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:51,087 INFO L93 Difference]: Finished difference Result 10844 states and 48541 transitions. [2021-06-05 03:43:51,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:51,088 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:51,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:51,113 INFO L225 Difference]: With dead ends: 10844 [2021-06-05 03:43:51,114 INFO L226 Difference]: Without dead ends: 10369 [2021-06-05 03:43:51,114 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 134.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:51,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10369 states. [2021-06-05 03:43:51,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10369 to 5233. [2021-06-05 03:43:51,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5233 states, 5232 states have (on average 4.728211009174312) internal successors, (24738), 5232 states have internal predecessors, (24738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:51,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5233 states to 5233 states and 24738 transitions. [2021-06-05 03:43:51,342 INFO L78 Accepts]: Start accepts. Automaton has 5233 states and 24738 transitions. Word has length 29 [2021-06-05 03:43:51,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:51,342 INFO L482 AbstractCegarLoop]: Abstraction has 5233 states and 24738 transitions. [2021-06-05 03:43:51,342 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:51,342 INFO L276 IsEmpty]: Start isEmpty. Operand 5233 states and 24738 transitions. [2021-06-05 03:43:51,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:51,350 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:51,351 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:51,351 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable597 [2021-06-05 03:43:51,351 INFO L430 AbstractCegarLoop]: === Iteration 599 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:51,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:51,351 INFO L82 PathProgramCache]: Analyzing trace with hash 207962311, now seen corresponding path program 594 times [2021-06-05 03:43:51,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:51,351 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428934713] [2021-06-05 03:43:51,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:51,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:51,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:51,460 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:51,460 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428934713] [2021-06-05 03:43:51,460 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428934713] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:51,460 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:51,460 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:51,460 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840977247] [2021-06-05 03:43:51,460 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:51,460 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:51,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:51,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:51,461 INFO L87 Difference]: Start difference. First operand 5233 states and 24738 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:51,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:51,573 INFO L93 Difference]: Finished difference Result 10840 states and 48453 transitions. [2021-06-05 03:43:51,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:51,573 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:51,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:51,598 INFO L225 Difference]: With dead ends: 10840 [2021-06-05 03:43:51,599 INFO L226 Difference]: Without dead ends: 10255 [2021-06-05 03:43:51,599 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 132.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:51,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10255 states. [2021-06-05 03:43:51,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10255 to 5119. [2021-06-05 03:43:51,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5119 states, 5118 states have (on average 4.7504884720593985) internal successors, (24313), 5118 states have internal predecessors, (24313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:51,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5119 states to 5119 states and 24313 transitions. [2021-06-05 03:43:51,821 INFO L78 Accepts]: Start accepts. Automaton has 5119 states and 24313 transitions. Word has length 29 [2021-06-05 03:43:51,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:51,821 INFO L482 AbstractCegarLoop]: Abstraction has 5119 states and 24313 transitions. [2021-06-05 03:43:51,821 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:51,821 INFO L276 IsEmpty]: Start isEmpty. Operand 5119 states and 24313 transitions. [2021-06-05 03:43:51,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:51,830 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:51,830 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:51,830 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable598 [2021-06-05 03:43:51,830 INFO L430 AbstractCegarLoop]: === Iteration 600 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:51,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:51,830 INFO L82 PathProgramCache]: Analyzing trace with hash -1862402741, now seen corresponding path program 595 times [2021-06-05 03:43:51,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:51,830 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994526041] [2021-06-05 03:43:51,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:51,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:51,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:51,961 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:51,961 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994526041] [2021-06-05 03:43:51,961 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994526041] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:51,961 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:51,961 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:51,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928309756] [2021-06-05 03:43:51,961 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:51,961 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:51,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:51,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:51,961 INFO L87 Difference]: Start difference. First operand 5119 states and 24313 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:52,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:52,051 INFO L93 Difference]: Finished difference Result 10566 states and 47316 transitions. [2021-06-05 03:43:52,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:52,051 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:52,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:52,076 INFO L225 Difference]: With dead ends: 10566 [2021-06-05 03:43:52,076 INFO L226 Difference]: Without dead ends: 10151 [2021-06-05 03:43:52,077 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 137.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:52,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10151 states. [2021-06-05 03:43:52,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10151 to 5191. [2021-06-05 03:43:52,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.742389210019268) internal successors, (24613), 5190 states have internal predecessors, (24613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:52,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24613 transitions. [2021-06-05 03:43:52,297 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24613 transitions. Word has length 29 [2021-06-05 03:43:52,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:52,297 INFO L482 AbstractCegarLoop]: Abstraction has 5191 states and 24613 transitions. [2021-06-05 03:43:52,297 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:52,297 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24613 transitions. [2021-06-05 03:43:52,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:52,306 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:52,306 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:52,306 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable599 [2021-06-05 03:43:52,306 INFO L430 AbstractCegarLoop]: === Iteration 601 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:52,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:52,306 INFO L82 PathProgramCache]: Analyzing trace with hash 1585767593, now seen corresponding path program 596 times [2021-06-05 03:43:52,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:52,307 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115115974] [2021-06-05 03:43:52,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:52,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:52,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:52,464 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:52,464 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115115974] [2021-06-05 03:43:52,464 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115115974] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:52,465 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:52,465 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:52,465 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153509008] [2021-06-05 03:43:52,465 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:52,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:52,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:52,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:52,465 INFO L87 Difference]: Start difference. First operand 5191 states and 24613 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:52,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:52,601 INFO L93 Difference]: Finished difference Result 10626 states and 47532 transitions. [2021-06-05 03:43:52,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:52,601 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:52,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:52,626 INFO L225 Difference]: With dead ends: 10626 [2021-06-05 03:43:52,626 INFO L226 Difference]: Without dead ends: 10103 [2021-06-05 03:43:52,626 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 182.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:52,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10103 states. [2021-06-05 03:43:52,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10103 to 5143. [2021-06-05 03:43:52,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.747763516141579) internal successors, (24413), 5142 states have internal predecessors, (24413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:52,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24413 transitions. [2021-06-05 03:43:52,843 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24413 transitions. Word has length 29 [2021-06-05 03:43:52,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:52,843 INFO L482 AbstractCegarLoop]: Abstraction has 5143 states and 24413 transitions. [2021-06-05 03:43:52,844 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:52,844 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24413 transitions. [2021-06-05 03:43:52,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:52,852 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:52,852 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:52,852 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable600 [2021-06-05 03:43:52,852 INFO L430 AbstractCegarLoop]: === Iteration 602 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:52,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:52,852 INFO L82 PathProgramCache]: Analyzing trace with hash 409503017, now seen corresponding path program 597 times [2021-06-05 03:43:52,852 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:52,853 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81224961] [2021-06-05 03:43:52,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:52,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:52,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:52,984 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:52,984 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81224961] [2021-06-05 03:43:52,984 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81224961] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:52,984 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:52,984 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:52,985 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618279520] [2021-06-05 03:43:52,985 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:52,985 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:52,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:52,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:52,985 INFO L87 Difference]: Start difference. First operand 5143 states and 24413 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:53,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:53,095 INFO L93 Difference]: Finished difference Result 10562 states and 47280 transitions. [2021-06-05 03:43:53,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:53,095 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:53,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:53,120 INFO L225 Difference]: With dead ends: 10562 [2021-06-05 03:43:53,120 INFO L226 Difference]: Without dead ends: 10147 [2021-06-05 03:43:53,120 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 139.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:53,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10147 states. [2021-06-05 03:43:53,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10147 to 5191. [2021-06-05 03:43:53,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.73776493256262) internal successors, (24589), 5190 states have internal predecessors, (24589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:53,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24589 transitions. [2021-06-05 03:43:53,338 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24589 transitions. Word has length 29 [2021-06-05 03:43:53,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:53,338 INFO L482 AbstractCegarLoop]: Abstraction has 5191 states and 24589 transitions. [2021-06-05 03:43:53,338 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:53,338 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24589 transitions. [2021-06-05 03:43:53,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:53,347 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:53,347 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:53,347 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable601 [2021-06-05 03:43:53,347 INFO L430 AbstractCegarLoop]: === Iteration 603 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:53,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:53,347 INFO L82 PathProgramCache]: Analyzing trace with hash -386523863, now seen corresponding path program 598 times [2021-06-05 03:43:53,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:53,347 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229082649] [2021-06-05 03:43:53,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:53,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:53,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:53,479 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:53,479 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229082649] [2021-06-05 03:43:53,479 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229082649] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:53,479 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:53,479 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:53,479 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43013442] [2021-06-05 03:43:53,479 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:53,479 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:53,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:53,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:53,479 INFO L87 Difference]: Start difference. First operand 5191 states and 24589 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:53,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:53,608 INFO L93 Difference]: Finished difference Result 10618 states and 47484 transitions. [2021-06-05 03:43:53,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:53,609 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:53,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:53,633 INFO L225 Difference]: With dead ends: 10618 [2021-06-05 03:43:53,633 INFO L226 Difference]: Without dead ends: 10099 [2021-06-05 03:43:53,634 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 156.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:53,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10099 states. [2021-06-05 03:43:53,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10099 to 5143. [2021-06-05 03:43:53,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.743096071567483) internal successors, (24389), 5142 states have internal predecessors, (24389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:53,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24389 transitions. [2021-06-05 03:43:53,851 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24389 transitions. Word has length 29 [2021-06-05 03:43:53,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:53,851 INFO L482 AbstractCegarLoop]: Abstraction has 5143 states and 24389 transitions. [2021-06-05 03:43:53,852 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:53,852 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24389 transitions. [2021-06-05 03:43:53,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:53,860 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:53,860 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:53,860 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable602 [2021-06-05 03:43:53,860 INFO L430 AbstractCegarLoop]: === Iteration 604 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:53,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:53,861 INFO L82 PathProgramCache]: Analyzing trace with hash -447245049, now seen corresponding path program 599 times [2021-06-05 03:43:53,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:53,861 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508361014] [2021-06-05 03:43:53,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:53,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:53,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:53,981 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:53,981 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508361014] [2021-06-05 03:43:53,981 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508361014] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:53,981 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:53,981 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:53,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986057969] [2021-06-05 03:43:53,981 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:53,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:53,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:53,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:53,981 INFO L87 Difference]: Start difference. First operand 5143 states and 24389 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:54,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:54,088 INFO L93 Difference]: Finished difference Result 10710 states and 47924 transitions. [2021-06-05 03:43:54,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:54,088 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:54,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:54,113 INFO L225 Difference]: With dead ends: 10710 [2021-06-05 03:43:54,114 INFO L226 Difference]: Without dead ends: 10235 [2021-06-05 03:43:54,114 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 144.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:54,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10235 states. [2021-06-05 03:43:54,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10235 to 5219. [2021-06-05 03:43:54,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5219 states, 5218 states have (on average 4.729206592564201) internal successors, (24677), 5218 states have internal predecessors, (24677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:54,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5219 states to 5219 states and 24677 transitions. [2021-06-05 03:43:54,334 INFO L78 Accepts]: Start accepts. Automaton has 5219 states and 24677 transitions. Word has length 29 [2021-06-05 03:43:54,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:54,335 INFO L482 AbstractCegarLoop]: Abstraction has 5219 states and 24677 transitions. [2021-06-05 03:43:54,335 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:54,335 INFO L276 IsEmpty]: Start isEmpty. Operand 5219 states and 24677 transitions. [2021-06-05 03:43:54,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:54,343 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:54,343 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:54,343 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable603 [2021-06-05 03:43:54,344 INFO L430 AbstractCegarLoop]: === Iteration 605 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:54,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:54,344 INFO L82 PathProgramCache]: Analyzing trace with hash -928147095, now seen corresponding path program 600 times [2021-06-05 03:43:54,344 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:54,344 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608725464] [2021-06-05 03:43:54,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:54,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:54,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:54,464 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:54,464 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608725464] [2021-06-05 03:43:54,464 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608725464] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:54,464 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:54,465 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:54,465 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089873340] [2021-06-05 03:43:54,465 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:54,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:54,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:54,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:54,465 INFO L87 Difference]: Start difference. First operand 5219 states and 24677 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:54,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:54,628 INFO L93 Difference]: Finished difference Result 10706 states and 47836 transitions. [2021-06-05 03:43:54,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:54,629 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:54,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:54,655 INFO L225 Difference]: With dead ends: 10706 [2021-06-05 03:43:54,655 INFO L226 Difference]: Without dead ends: 10119 [2021-06-05 03:43:54,656 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 144.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:54,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10119 states. [2021-06-05 03:43:54,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10119 to 5103. [2021-06-05 03:43:54,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5103 states, 5102 states have (on average 4.757154057232458) internal successors, (24271), 5102 states have internal predecessors, (24271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:54,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5103 states to 5103 states and 24271 transitions. [2021-06-05 03:43:54,871 INFO L78 Accepts]: Start accepts. Automaton has 5103 states and 24271 transitions. Word has length 29 [2021-06-05 03:43:54,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:54,871 INFO L482 AbstractCegarLoop]: Abstraction has 5103 states and 24271 transitions. [2021-06-05 03:43:54,871 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:54,871 INFO L276 IsEmpty]: Start isEmpty. Operand 5103 states and 24271 transitions. [2021-06-05 03:43:54,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:54,880 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:54,880 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:54,880 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable604 [2021-06-05 03:43:54,880 INFO L430 AbstractCegarLoop]: === Iteration 606 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:54,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:54,880 INFO L82 PathProgramCache]: Analyzing trace with hash -262363389, now seen corresponding path program 601 times [2021-06-05 03:43:54,880 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:54,880 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039529809] [2021-06-05 03:43:54,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:54,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:54,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:55,000 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:55,000 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039529809] [2021-06-05 03:43:55,000 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039529809] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:55,000 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:55,000 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:55,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825275029] [2021-06-05 03:43:55,000 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:55,000 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:55,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:55,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:55,000 INFO L87 Difference]: Start difference. First operand 5103 states and 24271 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:55,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:55,093 INFO L93 Difference]: Finished difference Result 12182 states and 54407 transitions. [2021-06-05 03:43:55,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:55,093 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:55,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:55,123 INFO L225 Difference]: With dead ends: 12182 [2021-06-05 03:43:55,124 INFO L226 Difference]: Without dead ends: 11640 [2021-06-05 03:43:55,124 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 126.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:55,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11640 states. [2021-06-05 03:43:55,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11640 to 5360. [2021-06-05 03:43:55,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5360 states, 5359 states have (on average 4.729053927971637) internal successors, (25343), 5359 states have internal predecessors, (25343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:55,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5360 states to 5360 states and 25343 transitions. [2021-06-05 03:43:55,372 INFO L78 Accepts]: Start accepts. Automaton has 5360 states and 25343 transitions. Word has length 29 [2021-06-05 03:43:55,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:55,373 INFO L482 AbstractCegarLoop]: Abstraction has 5360 states and 25343 transitions. [2021-06-05 03:43:55,373 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:55,373 INFO L276 IsEmpty]: Start isEmpty. Operand 5360 states and 25343 transitions. [2021-06-05 03:43:55,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:55,382 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:55,382 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:55,382 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable605 [2021-06-05 03:43:55,382 INFO L430 AbstractCegarLoop]: === Iteration 607 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:55,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:55,382 INFO L82 PathProgramCache]: Analyzing trace with hash 818699237, now seen corresponding path program 602 times [2021-06-05 03:43:55,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:55,382 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942057588] [2021-06-05 03:43:55,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:55,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:55,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:55,502 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:55,502 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942057588] [2021-06-05 03:43:55,502 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942057588] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:55,502 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:55,502 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:55,502 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766401256] [2021-06-05 03:43:55,502 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:55,502 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:55,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:55,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:55,503 INFO L87 Difference]: Start difference. First operand 5360 states and 25343 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:55,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:55,615 INFO L93 Difference]: Finished difference Result 12117 states and 54038 transitions. [2021-06-05 03:43:55,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:55,615 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:55,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:55,643 INFO L225 Difference]: With dead ends: 12117 [2021-06-05 03:43:55,643 INFO L226 Difference]: Without dead ends: 11497 [2021-06-05 03:43:55,643 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 143.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:55,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11497 states. [2021-06-05 03:43:55,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11497 to 5217. [2021-06-05 03:43:55,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5217 states, 5216 states have (on average 4.748466257668712) internal successors, (24768), 5216 states have internal predecessors, (24768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:55,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5217 states to 5217 states and 24768 transitions. [2021-06-05 03:43:55,873 INFO L78 Accepts]: Start accepts. Automaton has 5217 states and 24768 transitions. Word has length 29 [2021-06-05 03:43:55,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:55,873 INFO L482 AbstractCegarLoop]: Abstraction has 5217 states and 24768 transitions. [2021-06-05 03:43:55,873 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:55,873 INFO L276 IsEmpty]: Start isEmpty. Operand 5217 states and 24768 transitions. [2021-06-05 03:43:55,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:55,882 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:55,882 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:55,882 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable606 [2021-06-05 03:43:55,882 INFO L430 AbstractCegarLoop]: === Iteration 608 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:55,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:55,882 INFO L82 PathProgramCache]: Analyzing trace with hash -743265435, now seen corresponding path program 603 times [2021-06-05 03:43:55,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:55,883 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585796117] [2021-06-05 03:43:55,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:55,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:56,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:56,009 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:56,009 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585796117] [2021-06-05 03:43:56,009 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585796117] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:56,009 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:56,009 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:56,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228872475] [2021-06-05 03:43:56,009 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:56,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:56,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:56,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:56,010 INFO L87 Difference]: Start difference. First operand 5217 states and 24768 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:56,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:56,106 INFO L93 Difference]: Finished difference Result 12057 states and 53820 transitions. [2021-06-05 03:43:56,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:56,106 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:56,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:56,134 INFO L225 Difference]: With dead ends: 12057 [2021-06-05 03:43:56,134 INFO L226 Difference]: Without dead ends: 11515 [2021-06-05 03:43:56,134 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 133.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:56,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11515 states. [2021-06-05 03:43:56,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11515 to 5297. [2021-06-05 03:43:56,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5297 states, 5296 states have (on average 4.731117824773414) internal successors, (25056), 5296 states have internal predecessors, (25056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:56,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5297 states to 5297 states and 25056 transitions. [2021-06-05 03:43:56,368 INFO L78 Accepts]: Start accepts. Automaton has 5297 states and 25056 transitions. Word has length 29 [2021-06-05 03:43:56,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:56,368 INFO L482 AbstractCegarLoop]: Abstraction has 5297 states and 25056 transitions. [2021-06-05 03:43:56,369 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:56,369 INFO L276 IsEmpty]: Start isEmpty. Operand 5297 states and 25056 transitions. [2021-06-05 03:43:56,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:56,378 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:56,378 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:56,378 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable607 [2021-06-05 03:43:56,378 INFO L430 AbstractCegarLoop]: === Iteration 609 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:56,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:56,378 INFO L82 PathProgramCache]: Analyzing trace with hash 1863455589, now seen corresponding path program 604 times [2021-06-05 03:43:56,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:56,378 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858062053] [2021-06-05 03:43:56,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:56,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:56,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:56,508 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:56,508 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858062053] [2021-06-05 03:43:56,508 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858062053] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:56,508 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:56,508 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:56,508 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260959156] [2021-06-05 03:43:56,509 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:56,509 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:56,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:56,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:56,509 INFO L87 Difference]: Start difference. First operand 5297 states and 25056 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:56,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:56,606 INFO L93 Difference]: Finished difference Result 11930 states and 53213 transitions. [2021-06-05 03:43:56,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:56,606 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:56,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:56,634 INFO L225 Difference]: With dead ends: 11930 [2021-06-05 03:43:56,634 INFO L226 Difference]: Without dead ends: 11435 [2021-06-05 03:43:56,634 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 136.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:56,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11435 states. [2021-06-05 03:43:56,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11435 to 5217. [2021-06-05 03:43:56,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5217 states, 5216 states have (on average 4.74079754601227) internal successors, (24728), 5216 states have internal predecessors, (24728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:56,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5217 states to 5217 states and 24728 transitions. [2021-06-05 03:43:56,864 INFO L78 Accepts]: Start accepts. Automaton has 5217 states and 24728 transitions. Word has length 29 [2021-06-05 03:43:56,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:56,864 INFO L482 AbstractCegarLoop]: Abstraction has 5217 states and 24728 transitions. [2021-06-05 03:43:56,864 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:56,864 INFO L276 IsEmpty]: Start isEmpty. Operand 5217 states and 24728 transitions. [2021-06-05 03:43:56,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:56,873 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:56,873 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:56,873 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable608 [2021-06-05 03:43:56,873 INFO L430 AbstractCegarLoop]: === Iteration 610 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:56,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:56,873 INFO L82 PathProgramCache]: Analyzing trace with hash -355260473, now seen corresponding path program 605 times [2021-06-05 03:43:56,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:56,873 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955243681] [2021-06-05 03:43:56,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:56,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:57,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:57,000 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:57,000 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955243681] [2021-06-05 03:43:57,000 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955243681] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:57,000 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:57,000 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:57,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676111651] [2021-06-05 03:43:57,001 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:57,001 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:57,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:57,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:57,001 INFO L87 Difference]: Start difference. First operand 5217 states and 24728 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:57,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:57,112 INFO L93 Difference]: Finished difference Result 11895 states and 53120 transitions. [2021-06-05 03:43:57,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:57,112 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:57,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:57,140 INFO L225 Difference]: With dead ends: 11895 [2021-06-05 03:43:57,140 INFO L226 Difference]: Without dead ends: 11418 [2021-06-05 03:43:57,140 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 150.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:57,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11418 states. [2021-06-05 03:43:57,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11418 to 5265. [2021-06-05 03:43:57,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5265 states, 5264 states have (on average 4.731003039513678) internal successors, (24904), 5264 states have internal predecessors, (24904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:57,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5265 states to 5265 states and 24904 transitions. [2021-06-05 03:43:57,378 INFO L78 Accepts]: Start accepts. Automaton has 5265 states and 24904 transitions. Word has length 29 [2021-06-05 03:43:57,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:57,378 INFO L482 AbstractCegarLoop]: Abstraction has 5265 states and 24904 transitions. [2021-06-05 03:43:57,378 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:57,378 INFO L276 IsEmpty]: Start isEmpty. Operand 5265 states and 24904 transitions. [2021-06-05 03:43:57,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:57,386 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:57,386 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:57,386 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable609 [2021-06-05 03:43:57,387 INFO L430 AbstractCegarLoop]: === Iteration 611 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:57,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:57,387 INFO L82 PathProgramCache]: Analyzing trace with hash -1202057435, now seen corresponding path program 606 times [2021-06-05 03:43:57,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:57,387 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243524311] [2021-06-05 03:43:57,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:57,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:57,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:57,517 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:57,517 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243524311] [2021-06-05 03:43:57,517 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243524311] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:57,517 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:57,517 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:57,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984953323] [2021-06-05 03:43:57,517 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:57,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:57,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:57,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:57,517 INFO L87 Difference]: Start difference. First operand 5265 states and 24904 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:57,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:57,614 INFO L93 Difference]: Finished difference Result 11833 states and 52803 transitions. [2021-06-05 03:43:57,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:57,614 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:57,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:57,642 INFO L225 Difference]: With dead ends: 11833 [2021-06-05 03:43:57,642 INFO L226 Difference]: Without dead ends: 11314 [2021-06-05 03:43:57,642 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 137.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:57,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11314 states. [2021-06-05 03:43:57,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11314 to 5161. [2021-06-05 03:43:57,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.753488372093023) internal successors, (24528), 5160 states have internal predecessors, (24528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:57,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24528 transitions. [2021-06-05 03:43:57,870 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24528 transitions. Word has length 29 [2021-06-05 03:43:57,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:57,870 INFO L482 AbstractCegarLoop]: Abstraction has 5161 states and 24528 transitions. [2021-06-05 03:43:57,870 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:57,870 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24528 transitions. [2021-06-05 03:43:57,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:57,879 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:57,879 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:57,879 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable610 [2021-06-05 03:43:57,879 INFO L430 AbstractCegarLoop]: === Iteration 612 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:57,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:57,879 INFO L82 PathProgramCache]: Analyzing trace with hash 1447238373, now seen corresponding path program 607 times [2021-06-05 03:43:57,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:57,879 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131650853] [2021-06-05 03:43:57,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:57,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:57,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:57,994 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:57,994 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131650853] [2021-06-05 03:43:57,994 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131650853] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:57,994 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:57,994 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:57,994 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052172668] [2021-06-05 03:43:57,994 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:57,994 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:57,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:57,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:57,995 INFO L87 Difference]: Start difference. First operand 5161 states and 24528 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:58,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:58,091 INFO L93 Difference]: Finished difference Result 12333 states and 55066 transitions. [2021-06-05 03:43:58,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:58,091 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:58,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:58,120 INFO L225 Difference]: With dead ends: 12333 [2021-06-05 03:43:58,120 INFO L226 Difference]: Without dead ends: 11791 [2021-06-05 03:43:58,120 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 121.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:58,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11791 states. [2021-06-05 03:43:58,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11791 to 5391. [2021-06-05 03:43:58,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5391 states, 5390 states have (on average 4.7205936920222635) internal successors, (25444), 5390 states have internal predecessors, (25444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:58,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5391 states to 5391 states and 25444 transitions. [2021-06-05 03:43:58,356 INFO L78 Accepts]: Start accepts. Automaton has 5391 states and 25444 transitions. Word has length 29 [2021-06-05 03:43:58,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:58,356 INFO L482 AbstractCegarLoop]: Abstraction has 5391 states and 25444 transitions. [2021-06-05 03:43:58,356 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:58,356 INFO L276 IsEmpty]: Start isEmpty. Operand 5391 states and 25444 transitions. [2021-06-05 03:43:58,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:58,365 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:58,365 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:58,365 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable611 [2021-06-05 03:43:58,365 INFO L430 AbstractCegarLoop]: === Iteration 613 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:58,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:58,365 INFO L82 PathProgramCache]: Analyzing trace with hash -1766666297, now seen corresponding path program 608 times [2021-06-05 03:43:58,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:58,366 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561819443] [2021-06-05 03:43:58,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:58,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:58,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:58,481 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:58,481 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561819443] [2021-06-05 03:43:58,481 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561819443] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:58,481 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:58,481 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:58,481 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276858810] [2021-06-05 03:43:58,481 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:58,481 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:58,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:58,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:58,482 INFO L87 Difference]: Start difference. First operand 5391 states and 25444 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:58,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:58,602 INFO L93 Difference]: Finished difference Result 12268 states and 54697 transitions. [2021-06-05 03:43:58,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:58,602 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:58,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:58,630 INFO L225 Difference]: With dead ends: 12268 [2021-06-05 03:43:58,631 INFO L226 Difference]: Without dead ends: 11648 [2021-06-05 03:43:58,631 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 138.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:58,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11648 states. [2021-06-05 03:43:58,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11648 to 5248. [2021-06-05 03:43:58,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5248 states, 5247 states have (on average 4.736801982085001) internal successors, (24854), 5247 states have internal predecessors, (24854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:58,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5248 states to 5248 states and 24854 transitions. [2021-06-05 03:43:58,867 INFO L78 Accepts]: Start accepts. Automaton has 5248 states and 24854 transitions. Word has length 29 [2021-06-05 03:43:58,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:58,867 INFO L482 AbstractCegarLoop]: Abstraction has 5248 states and 24854 transitions. [2021-06-05 03:43:58,867 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:58,867 INFO L276 IsEmpty]: Start isEmpty. Operand 5248 states and 24854 transitions. [2021-06-05 03:43:58,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:58,876 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:58,876 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:58,876 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable612 [2021-06-05 03:43:58,876 INFO L430 AbstractCegarLoop]: === Iteration 614 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:58,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:58,876 INFO L82 PathProgramCache]: Analyzing trace with hash -1754758427, now seen corresponding path program 609 times [2021-06-05 03:43:58,876 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:58,876 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054139428] [2021-06-05 03:43:58,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:58,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:58,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:58,990 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:58,991 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054139428] [2021-06-05 03:43:58,991 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054139428] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:58,991 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:58,991 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:58,991 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112666754] [2021-06-05 03:43:58,991 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:58,991 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:58,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:58,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:58,991 INFO L87 Difference]: Start difference. First operand 5248 states and 24854 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:59,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:59,103 INFO L93 Difference]: Finished difference Result 12298 states and 54875 transitions. [2021-06-05 03:43:59,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:59,104 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:59,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:59,132 INFO L225 Difference]: With dead ends: 12298 [2021-06-05 03:43:59,132 INFO L226 Difference]: Without dead ends: 11756 [2021-06-05 03:43:59,132 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 121.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:59,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11756 states. [2021-06-05 03:43:59,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11756 to 5358. [2021-06-05 03:43:59,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5358 states, 5357 states have (on average 4.71513907037521) internal successors, (25259), 5357 states have internal predecessors, (25259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:59,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5358 states to 5358 states and 25259 transitions. [2021-06-05 03:43:59,362 INFO L78 Accepts]: Start accepts. Automaton has 5358 states and 25259 transitions. Word has length 29 [2021-06-05 03:43:59,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:59,362 INFO L482 AbstractCegarLoop]: Abstraction has 5358 states and 25259 transitions. [2021-06-05 03:43:59,362 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:59,362 INFO L276 IsEmpty]: Start isEmpty. Operand 5358 states and 25259 transitions. [2021-06-05 03:43:59,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:59,371 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:59,371 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:59,371 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable613 [2021-06-05 03:43:59,371 INFO L430 AbstractCegarLoop]: === Iteration 615 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:59,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:59,371 INFO L82 PathProgramCache]: Analyzing trace with hash -1705190683, now seen corresponding path program 610 times [2021-06-05 03:43:59,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:59,371 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244520606] [2021-06-05 03:43:59,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:59,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:59,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:59,485 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:59,485 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244520606] [2021-06-05 03:43:59,485 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244520606] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:59,485 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:59,485 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:59,485 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293293187] [2021-06-05 03:43:59,485 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:59,485 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:59,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:59,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:59,485 INFO L87 Difference]: Start difference. First operand 5358 states and 25259 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:59,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:43:59,614 INFO L93 Difference]: Finished difference Result 12231 states and 54502 transitions. [2021-06-05 03:43:59,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:43:59,614 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:43:59,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:43:59,642 INFO L225 Difference]: With dead ends: 12231 [2021-06-05 03:43:59,643 INFO L226 Difference]: Without dead ends: 11646 [2021-06-05 03:43:59,643 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 137.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:43:59,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11646 states. [2021-06-05 03:43:59,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11646 to 5248. [2021-06-05 03:43:59,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5248 states, 5247 states have (on average 4.7263198017915) internal successors, (24799), 5247 states have internal predecessors, (24799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:59,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5248 states to 5248 states and 24799 transitions. [2021-06-05 03:43:59,875 INFO L78 Accepts]: Start accepts. Automaton has 5248 states and 24799 transitions. Word has length 29 [2021-06-05 03:43:59,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:43:59,875 INFO L482 AbstractCegarLoop]: Abstraction has 5248 states and 24799 transitions. [2021-06-05 03:43:59,875 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:43:59,875 INFO L276 IsEmpty]: Start isEmpty. Operand 5248 states and 24799 transitions. [2021-06-05 03:43:59,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:43:59,884 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:43:59,884 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:43:59,884 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable614 [2021-06-05 03:43:59,884 INFO L430 AbstractCegarLoop]: === Iteration 616 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:43:59,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:43:59,884 INFO L82 PathProgramCache]: Analyzing trace with hash -1366753465, now seen corresponding path program 611 times [2021-06-05 03:43:59,884 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:43:59,884 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660598372] [2021-06-05 03:43:59,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:43:59,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:43:59,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:43:59,998 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:43:59,998 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660598372] [2021-06-05 03:43:59,998 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660598372] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:43:59,998 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:43:59,998 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:43:59,998 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825778655] [2021-06-05 03:43:59,998 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:43:59,999 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:43:59,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:43:59,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:43:59,999 INFO L87 Difference]: Start difference. First operand 5248 states and 24799 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:00,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:00,113 INFO L93 Difference]: Finished difference Result 12136 states and 54160 transitions. [2021-06-05 03:44:00,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:00,113 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:00,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:00,141 INFO L225 Difference]: With dead ends: 12136 [2021-06-05 03:44:00,141 INFO L226 Difference]: Without dead ends: 11659 [2021-06-05 03:44:00,141 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 137.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:00,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11659 states. [2021-06-05 03:44:00,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11659 to 5326. [2021-06-05 03:44:00,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5326 states, 5325 states have (on average 4.712112676056338) internal successors, (25092), 5325 states have internal predecessors, (25092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:00,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5326 states to 5326 states and 25092 transitions. [2021-06-05 03:44:00,373 INFO L78 Accepts]: Start accepts. Automaton has 5326 states and 25092 transitions. Word has length 29 [2021-06-05 03:44:00,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:00,373 INFO L482 AbstractCegarLoop]: Abstraction has 5326 states and 25092 transitions. [2021-06-05 03:44:00,373 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:00,373 INFO L276 IsEmpty]: Start isEmpty. Operand 5326 states and 25092 transitions. [2021-06-05 03:44:00,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:00,382 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:00,382 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:00,382 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable615 [2021-06-05 03:44:00,382 INFO L430 AbstractCegarLoop]: === Iteration 617 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:00,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:00,382 INFO L82 PathProgramCache]: Analyzing trace with hash 812134181, now seen corresponding path program 612 times [2021-06-05 03:44:00,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:00,382 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679788331] [2021-06-05 03:44:00,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:00,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:00,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:00,497 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:00,497 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679788331] [2021-06-05 03:44:00,497 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679788331] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:00,497 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:00,497 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:00,497 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426867508] [2021-06-05 03:44:00,497 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:00,497 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:00,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:00,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:00,497 INFO L87 Difference]: Start difference. First operand 5326 states and 25092 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:00,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:00,616 INFO L93 Difference]: Finished difference Result 12134 states and 54077 transitions. [2021-06-05 03:44:00,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:00,616 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:00,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:00,645 INFO L225 Difference]: With dead ends: 12134 [2021-06-05 03:44:00,645 INFO L226 Difference]: Without dead ends: 11494 [2021-06-05 03:44:00,645 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 138.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:00,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11494 states. [2021-06-05 03:44:00,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11494 to 5161. [2021-06-05 03:44:00,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.746511627906977) internal successors, (24492), 5160 states have internal predecessors, (24492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:00,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24492 transitions. [2021-06-05 03:44:00,872 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24492 transitions. Word has length 29 [2021-06-05 03:44:00,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:00,872 INFO L482 AbstractCegarLoop]: Abstraction has 5161 states and 24492 transitions. [2021-06-05 03:44:00,872 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:00,873 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24492 transitions. [2021-06-05 03:44:00,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:00,881 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:00,881 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:00,881 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable616 [2021-06-05 03:44:00,881 INFO L430 AbstractCegarLoop]: === Iteration 618 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:00,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:00,881 INFO L82 PathProgramCache]: Analyzing trace with hash 657852103, now seen corresponding path program 613 times [2021-06-05 03:44:00,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:00,881 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330792970] [2021-06-05 03:44:00,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:00,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:01,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:01,012 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:01,012 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330792970] [2021-06-05 03:44:01,012 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330792970] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:01,012 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:01,012 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:01,012 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662319206] [2021-06-05 03:44:01,013 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:01,013 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:01,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:01,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:01,013 INFO L87 Difference]: Start difference. First operand 5161 states and 24492 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:01,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:01,107 INFO L93 Difference]: Finished difference Result 12006 states and 53628 transitions. [2021-06-05 03:44:01,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:01,108 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:01,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:01,135 INFO L225 Difference]: With dead ends: 12006 [2021-06-05 03:44:01,135 INFO L226 Difference]: Without dead ends: 11464 [2021-06-05 03:44:01,135 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 138.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:01,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11464 states. [2021-06-05 03:44:01,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11464 to 5281. [2021-06-05 03:44:01,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5281 states, 5280 states have (on average 4.7318181818181815) internal successors, (24984), 5280 states have internal predecessors, (24984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:01,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5281 states to 5281 states and 24984 transitions. [2021-06-05 03:44:01,363 INFO L78 Accepts]: Start accepts. Automaton has 5281 states and 24984 transitions. Word has length 29 [2021-06-05 03:44:01,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:01,364 INFO L482 AbstractCegarLoop]: Abstraction has 5281 states and 24984 transitions. [2021-06-05 03:44:01,364 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:01,364 INFO L276 IsEmpty]: Start isEmpty. Operand 5281 states and 24984 transitions. [2021-06-05 03:44:01,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:01,372 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:01,372 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:01,373 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable617 [2021-06-05 03:44:01,373 INFO L430 AbstractCegarLoop]: === Iteration 619 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:01,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:01,373 INFO L82 PathProgramCache]: Analyzing trace with hash -1030394169, now seen corresponding path program 614 times [2021-06-05 03:44:01,373 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:01,373 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628756938] [2021-06-05 03:44:01,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:01,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:01,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:01,508 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:01,508 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628756938] [2021-06-05 03:44:01,508 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628756938] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:01,508 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:01,508 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:01,508 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812450216] [2021-06-05 03:44:01,508 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:01,508 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:01,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:01,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:01,509 INFO L87 Difference]: Start difference. First operand 5281 states and 24984 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:01,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:01,604 INFO L93 Difference]: Finished difference Result 11879 states and 53021 transitions. [2021-06-05 03:44:01,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:01,604 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:01,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:01,631 INFO L225 Difference]: With dead ends: 11879 [2021-06-05 03:44:01,632 INFO L226 Difference]: Without dead ends: 11384 [2021-06-05 03:44:01,632 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 138.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:01,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11384 states. [2021-06-05 03:44:01,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11384 to 5201. [2021-06-05 03:44:01,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5201 states, 5200 states have (on average 4.741538461538462) internal successors, (24656), 5200 states have internal predecessors, (24656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:01,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5201 states to 5201 states and 24656 transitions. [2021-06-05 03:44:01,861 INFO L78 Accepts]: Start accepts. Automaton has 5201 states and 24656 transitions. Word has length 29 [2021-06-05 03:44:01,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:01,861 INFO L482 AbstractCegarLoop]: Abstraction has 5201 states and 24656 transitions. [2021-06-05 03:44:01,861 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:01,861 INFO L276 IsEmpty]: Start isEmpty. Operand 5201 states and 24656 transitions. [2021-06-05 03:44:01,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:01,870 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:01,870 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:01,870 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable618 [2021-06-05 03:44:01,870 INFO L430 AbstractCegarLoop]: === Iteration 620 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:01,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:01,870 INFO L82 PathProgramCache]: Analyzing trace with hash -1365209435, now seen corresponding path program 615 times [2021-06-05 03:44:01,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:01,870 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817819180] [2021-06-05 03:44:01,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:01,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:01,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:01,993 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:01,993 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817819180] [2021-06-05 03:44:01,993 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817819180] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:01,993 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:01,993 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:01,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75671119] [2021-06-05 03:44:01,994 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:01,994 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:01,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:01,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:01,994 INFO L87 Difference]: Start difference. First operand 5201 states and 24656 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:02,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:02,094 INFO L93 Difference]: Finished difference Result 12096 states and 53999 transitions. [2021-06-05 03:44:02,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:02,095 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:02,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:02,123 INFO L225 Difference]: With dead ends: 12096 [2021-06-05 03:44:02,123 INFO L226 Difference]: Without dead ends: 11554 [2021-06-05 03:44:02,123 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 130.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:02,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11554 states. [2021-06-05 03:44:02,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11554 to 5311. [2021-06-05 03:44:02,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5311 states, 5310 states have (on average 4.719585687382297) internal successors, (25061), 5310 states have internal predecessors, (25061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:02,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5311 states to 5311 states and 25061 transitions. [2021-06-05 03:44:02,353 INFO L78 Accepts]: Start accepts. Automaton has 5311 states and 25061 transitions. Word has length 29 [2021-06-05 03:44:02,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:02,353 INFO L482 AbstractCegarLoop]: Abstraction has 5311 states and 25061 transitions. [2021-06-05 03:44:02,353 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:02,353 INFO L276 IsEmpty]: Start isEmpty. Operand 5311 states and 25061 transitions. [2021-06-05 03:44:02,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:02,362 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:02,362 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:02,362 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable619 [2021-06-05 03:44:02,362 INFO L430 AbstractCegarLoop]: === Iteration 621 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:02,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:02,362 INFO L82 PathProgramCache]: Analyzing trace with hash 4411079, now seen corresponding path program 616 times [2021-06-05 03:44:02,362 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:02,362 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365258432] [2021-06-05 03:44:02,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:02,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:02,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:02,483 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:02,484 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365258432] [2021-06-05 03:44:02,484 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365258432] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:02,484 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:02,484 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:02,484 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751779375] [2021-06-05 03:44:02,484 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:02,484 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:02,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:02,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:02,484 INFO L87 Difference]: Start difference. First operand 5311 states and 25061 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:02,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:02,600 INFO L93 Difference]: Finished difference Result 12029 states and 53626 transitions. [2021-06-05 03:44:02,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:02,600 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:02,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:02,628 INFO L225 Difference]: With dead ends: 12029 [2021-06-05 03:44:02,628 INFO L226 Difference]: Without dead ends: 11444 [2021-06-05 03:44:02,628 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 145.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:02,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11444 states. [2021-06-05 03:44:02,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11444 to 5201. [2021-06-05 03:44:02,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5201 states, 5200 states have (on average 4.733846153846154) internal successors, (24616), 5200 states have internal predecessors, (24616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:02,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5201 states to 5201 states and 24616 transitions. [2021-06-05 03:44:02,854 INFO L78 Accepts]: Start accepts. Automaton has 5201 states and 24616 transitions. Word has length 29 [2021-06-05 03:44:02,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:02,854 INFO L482 AbstractCegarLoop]: Abstraction has 5201 states and 24616 transitions. [2021-06-05 03:44:02,854 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:02,854 INFO L276 IsEmpty]: Start isEmpty. Operand 5201 states and 24616 transitions. [2021-06-05 03:44:02,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:02,863 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:02,863 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:02,863 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable620 [2021-06-05 03:44:02,863 INFO L430 AbstractCegarLoop]: === Iteration 622 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:02,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:02,863 INFO L82 PathProgramCache]: Analyzing trace with hash -640432441, now seen corresponding path program 617 times [2021-06-05 03:44:02,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:02,863 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611871120] [2021-06-05 03:44:02,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:02,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:02,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:02,996 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:02,996 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611871120] [2021-06-05 03:44:02,996 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611871120] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:02,996 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:02,996 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:02,996 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876775953] [2021-06-05 03:44:02,996 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:02,996 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:02,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:02,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:02,996 INFO L87 Difference]: Start difference. First operand 5201 states and 24616 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:03,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:03,094 INFO L93 Difference]: Finished difference Result 11780 states and 52614 transitions. [2021-06-05 03:44:03,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:03,094 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:03,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:03,122 INFO L225 Difference]: With dead ends: 11780 [2021-06-05 03:44:03,122 INFO L226 Difference]: Without dead ends: 11365 [2021-06-05 03:44:03,122 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 139.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:03,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11365 states. [2021-06-05 03:44:03,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11365 to 5249. [2021-06-05 03:44:03,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5249 states, 5248 states have (on average 4.724085365853658) internal successors, (24792), 5248 states have internal predecessors, (24792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:03,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5249 states to 5249 states and 24792 transitions. [2021-06-05 03:44:03,359 INFO L78 Accepts]: Start accepts. Automaton has 5249 states and 24792 transitions. Word has length 29 [2021-06-05 03:44:03,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:03,359 INFO L482 AbstractCegarLoop]: Abstraction has 5249 states and 24792 transitions. [2021-06-05 03:44:03,359 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:03,359 INFO L276 IsEmpty]: Start isEmpty. Operand 5249 states and 24792 transitions. [2021-06-05 03:44:03,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:03,369 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:03,369 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:03,369 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable621 [2021-06-05 03:44:03,369 INFO L430 AbstractCegarLoop]: === Iteration 623 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:03,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:03,370 INFO L82 PathProgramCache]: Analyzing trace with hash -1487229403, now seen corresponding path program 618 times [2021-06-05 03:44:03,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:03,370 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278554745] [2021-06-05 03:44:03,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:03,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:03,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:03,539 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:03,539 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278554745] [2021-06-05 03:44:03,539 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278554745] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:03,539 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:03,539 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:03,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86003881] [2021-06-05 03:44:03,539 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:03,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:03,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:03,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:03,539 INFO L87 Difference]: Start difference. First operand 5249 states and 24792 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:03,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:03,669 INFO L93 Difference]: Finished difference Result 11840 states and 52830 transitions. [2021-06-05 03:44:03,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:03,669 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:03,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:03,697 INFO L225 Difference]: With dead ends: 11840 [2021-06-05 03:44:03,697 INFO L226 Difference]: Without dead ends: 11277 [2021-06-05 03:44:03,697 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 192.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:03,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11277 states. [2021-06-05 03:44:03,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11277 to 5161. [2021-06-05 03:44:03,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.742635658914729) internal successors, (24472), 5160 states have internal predecessors, (24472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:03,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24472 transitions. [2021-06-05 03:44:03,968 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24472 transitions. Word has length 29 [2021-06-05 03:44:03,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:03,968 INFO L482 AbstractCegarLoop]: Abstraction has 5161 states and 24472 transitions. [2021-06-05 03:44:03,969 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:03,969 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24472 transitions. [2021-06-05 03:44:03,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:03,977 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:03,977 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:03,977 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable622 [2021-06-05 03:44:03,977 INFO L430 AbstractCegarLoop]: === Iteration 624 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:03,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:03,977 INFO L82 PathProgramCache]: Analyzing trace with hash 737372841, now seen corresponding path program 619 times [2021-06-05 03:44:03,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:03,978 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669746211] [2021-06-05 03:44:03,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:03,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:04,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:04,106 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:04,107 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669746211] [2021-06-05 03:44:04,107 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669746211] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:04,107 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:04,107 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:04,107 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790143968] [2021-06-05 03:44:04,107 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:04,107 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:04,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:04,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:04,107 INFO L87 Difference]: Start difference. First operand 5161 states and 24472 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:04,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:04,234 INFO L93 Difference]: Finished difference Result 11699 states and 52322 transitions. [2021-06-05 03:44:04,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:04,235 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:04,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:04,262 INFO L225 Difference]: With dead ends: 11699 [2021-06-05 03:44:04,262 INFO L226 Difference]: Without dead ends: 11222 [2021-06-05 03:44:04,262 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 152.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:04,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11222 states. [2021-06-05 03:44:04,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11222 to 5233. [2021-06-05 03:44:04,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5233 states, 5232 states have (on average 4.734709480122324) internal successors, (24772), 5232 states have internal predecessors, (24772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:04,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5233 states to 5233 states and 24772 transitions. [2021-06-05 03:44:04,492 INFO L78 Accepts]: Start accepts. Automaton has 5233 states and 24772 transitions. Word has length 29 [2021-06-05 03:44:04,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:04,492 INFO L482 AbstractCegarLoop]: Abstraction has 5233 states and 24772 transitions. [2021-06-05 03:44:04,492 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:04,492 INFO L276 IsEmpty]: Start isEmpty. Operand 5233 states and 24772 transitions. [2021-06-05 03:44:04,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:04,501 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:04,501 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:04,501 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable623 [2021-06-05 03:44:04,501 INFO L430 AbstractCegarLoop]: === Iteration 625 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:04,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:04,501 INFO L82 PathProgramCache]: Analyzing trace with hash -109424121, now seen corresponding path program 620 times [2021-06-05 03:44:04,501 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:04,501 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873634285] [2021-06-05 03:44:04,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:04,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:04,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:04,631 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:04,631 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873634285] [2021-06-05 03:44:04,631 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873634285] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:04,631 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:04,631 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:04,631 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558250857] [2021-06-05 03:44:04,632 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:04,632 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:04,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:04,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:04,632 INFO L87 Difference]: Start difference. First operand 5233 states and 24772 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:04,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:04,743 INFO L93 Difference]: Finished difference Result 11637 states and 52005 transitions. [2021-06-05 03:44:04,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:04,743 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:04,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:04,770 INFO L225 Difference]: With dead ends: 11637 [2021-06-05 03:44:04,770 INFO L226 Difference]: Without dead ends: 11174 [2021-06-05 03:44:04,770 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 136.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:04,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11174 states. [2021-06-05 03:44:04,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11174 to 5185. [2021-06-05 03:44:04,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5185 states, 5184 states have (on average 4.739969135802469) internal successors, (24572), 5184 states have internal predecessors, (24572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:04,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5185 states to 5185 states and 24572 transitions. [2021-06-05 03:44:04,997 INFO L78 Accepts]: Start accepts. Automaton has 5185 states and 24572 transitions. Word has length 29 [2021-06-05 03:44:04,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:04,997 INFO L482 AbstractCegarLoop]: Abstraction has 5185 states and 24572 transitions. [2021-06-05 03:44:04,998 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:04,998 INFO L276 IsEmpty]: Start isEmpty. Operand 5185 states and 24572 transitions. [2021-06-05 03:44:05,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:05,007 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:05,007 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:05,007 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable624 [2021-06-05 03:44:05,007 INFO L430 AbstractCegarLoop]: === Iteration 626 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:05,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:05,008 INFO L82 PathProgramCache]: Analyzing trace with hash -1285688697, now seen corresponding path program 621 times [2021-06-05 03:44:05,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:05,008 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892473205] [2021-06-05 03:44:05,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:05,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:05,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:05,129 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:05,129 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892473205] [2021-06-05 03:44:05,129 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892473205] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:05,129 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:05,129 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:05,129 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254057181] [2021-06-05 03:44:05,129 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:05,129 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:05,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:05,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:05,129 INFO L87 Difference]: Start difference. First operand 5185 states and 24572 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:05,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:05,254 INFO L93 Difference]: Finished difference Result 11789 states and 52709 transitions. [2021-06-05 03:44:05,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:05,255 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:05,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:05,283 INFO L225 Difference]: With dead ends: 11789 [2021-06-05 03:44:05,283 INFO L226 Difference]: Without dead ends: 11312 [2021-06-05 03:44:05,283 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 144.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:05,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11312 states. [2021-06-05 03:44:05,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11312 to 5263. [2021-06-05 03:44:05,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5263 states, 5262 states have (on average 4.725389585708856) internal successors, (24865), 5262 states have internal predecessors, (24865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:05,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5263 states to 5263 states and 24865 transitions. [2021-06-05 03:44:05,515 INFO L78 Accepts]: Start accepts. Automaton has 5263 states and 24865 transitions. Word has length 29 [2021-06-05 03:44:05,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:05,515 INFO L482 AbstractCegarLoop]: Abstraction has 5263 states and 24865 transitions. [2021-06-05 03:44:05,515 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:05,515 INFO L276 IsEmpty]: Start isEmpty. Operand 5263 states and 24865 transitions. [2021-06-05 03:44:05,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:05,523 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:05,523 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:05,523 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable625 [2021-06-05 03:44:05,524 INFO L430 AbstractCegarLoop]: === Iteration 627 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:05,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:05,524 INFO L82 PathProgramCache]: Analyzing trace with hash -2081715577, now seen corresponding path program 622 times [2021-06-05 03:44:05,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:05,524 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829717009] [2021-06-05 03:44:05,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:05,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:05,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:05,644 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:05,644 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829717009] [2021-06-05 03:44:05,644 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829717009] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:05,644 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:05,644 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:05,644 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077899952] [2021-06-05 03:44:05,645 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:05,645 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:05,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:05,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:05,645 INFO L87 Difference]: Start difference. First operand 5263 states and 24865 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:05,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:05,755 INFO L93 Difference]: Finished difference Result 11787 states and 52626 transitions. [2021-06-05 03:44:05,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:05,755 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:05,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:05,784 INFO L225 Difference]: With dead ends: 11787 [2021-06-05 03:44:05,784 INFO L226 Difference]: Without dead ends: 11234 [2021-06-05 03:44:05,784 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 144.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:05,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11234 states. [2021-06-05 03:44:05,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11234 to 5185. [2021-06-05 03:44:05,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5185 states, 5184 states have (on average 4.735339506172839) internal successors, (24548), 5184 states have internal predecessors, (24548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:06,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5185 states to 5185 states and 24548 transitions. [2021-06-05 03:44:06,014 INFO L78 Accepts]: Start accepts. Automaton has 5185 states and 24548 transitions. Word has length 29 [2021-06-05 03:44:06,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:06,014 INFO L482 AbstractCegarLoop]: Abstraction has 5185 states and 24548 transitions. [2021-06-05 03:44:06,014 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:06,014 INFO L276 IsEmpty]: Start isEmpty. Operand 5185 states and 24548 transitions. [2021-06-05 03:44:06,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:06,023 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:06,023 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:06,023 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable626 [2021-06-05 03:44:06,023 INFO L430 AbstractCegarLoop]: === Iteration 628 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:06,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:06,023 INFO L82 PathProgramCache]: Analyzing trace with hash -2142436763, now seen corresponding path program 623 times [2021-06-05 03:44:06,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:06,023 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462130424] [2021-06-05 03:44:06,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:06,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:06,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:06,155 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:06,155 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462130424] [2021-06-05 03:44:06,155 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462130424] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:06,155 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:06,155 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:06,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113556402] [2021-06-05 03:44:06,156 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:06,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:06,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:06,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:06,156 INFO L87 Difference]: Start difference. First operand 5185 states and 24548 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:06,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:06,246 INFO L93 Difference]: Finished difference Result 11635 states and 52000 transitions. [2021-06-05 03:44:06,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:06,246 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:06,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:06,274 INFO L225 Difference]: With dead ends: 11635 [2021-06-05 03:44:06,274 INFO L226 Difference]: Without dead ends: 11220 [2021-06-05 03:44:06,274 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 138.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:06,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11220 states. [2021-06-05 03:44:06,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11220 to 5233. [2021-06-05 03:44:06,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5233 states, 5232 states have (on average 4.7255351681957185) internal successors, (24724), 5232 states have internal predecessors, (24724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:06,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5233 states to 5233 states and 24724 transitions. [2021-06-05 03:44:06,514 INFO L78 Accepts]: Start accepts. Automaton has 5233 states and 24724 transitions. Word has length 29 [2021-06-05 03:44:06,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:06,514 INFO L482 AbstractCegarLoop]: Abstraction has 5233 states and 24724 transitions. [2021-06-05 03:44:06,514 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:06,514 INFO L276 IsEmpty]: Start isEmpty. Operand 5233 states and 24724 transitions. [2021-06-05 03:44:06,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:06,523 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:06,523 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:06,523 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable627 [2021-06-05 03:44:06,524 INFO L430 AbstractCegarLoop]: === Iteration 629 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:06,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:06,524 INFO L82 PathProgramCache]: Analyzing trace with hash 1671628487, now seen corresponding path program 624 times [2021-06-05 03:44:06,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:06,524 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660906748] [2021-06-05 03:44:06,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:06,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:06,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:06,655 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:06,655 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660906748] [2021-06-05 03:44:06,655 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660906748] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:06,655 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:06,655 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:06,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724363819] [2021-06-05 03:44:06,655 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:06,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:06,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:06,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:06,655 INFO L87 Difference]: Start difference. First operand 5233 states and 24724 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:06,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:06,766 INFO L93 Difference]: Finished difference Result 11695 states and 52216 transitions. [2021-06-05 03:44:06,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:06,766 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:06,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:06,795 INFO L225 Difference]: With dead ends: 11695 [2021-06-05 03:44:06,795 INFO L226 Difference]: Without dead ends: 11112 [2021-06-05 03:44:06,795 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 154.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:06,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11112 states. [2021-06-05 03:44:07,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11112 to 5125. [2021-06-05 03:44:07,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5125 states, 5124 states have (on average 4.754488680718189) internal successors, (24362), 5124 states have internal predecessors, (24362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:07,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5125 states to 5125 states and 24362 transitions. [2021-06-05 03:44:07,028 INFO L78 Accepts]: Start accepts. Automaton has 5125 states and 24362 transitions. Word has length 29 [2021-06-05 03:44:07,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:07,028 INFO L482 AbstractCegarLoop]: Abstraction has 5125 states and 24362 transitions. [2021-06-05 03:44:07,028 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:07,028 INFO L276 IsEmpty]: Start isEmpty. Operand 5125 states and 24362 transitions. [2021-06-05 03:44:07,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:07,037 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:07,037 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:07,037 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable628 [2021-06-05 03:44:07,037 INFO L430 AbstractCegarLoop]: === Iteration 630 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:07,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:07,037 INFO L82 PathProgramCache]: Analyzing trace with hash 1987422821, now seen corresponding path program 625 times [2021-06-05 03:44:07,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:07,037 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107586797] [2021-06-05 03:44:07,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:07,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:07,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:07,160 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:07,160 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107586797] [2021-06-05 03:44:07,160 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107586797] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:07,160 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:07,160 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:07,160 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757945212] [2021-06-05 03:44:07,160 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:07,160 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:07,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:07,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:07,161 INFO L87 Difference]: Start difference. First operand 5125 states and 24362 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:07,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:07,259 INFO L93 Difference]: Finished difference Result 12149 states and 54283 transitions. [2021-06-05 03:44:07,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:07,259 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:07,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:07,288 INFO L225 Difference]: With dead ends: 12149 [2021-06-05 03:44:07,288 INFO L226 Difference]: Without dead ends: 11607 [2021-06-05 03:44:07,289 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 129.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:07,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11607 states. [2021-06-05 03:44:07,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11607 to 5352. [2021-06-05 03:44:07,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5352 states, 5351 states have (on average 4.727527564941132) internal successors, (25297), 5351 states have internal predecessors, (25297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:07,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5352 states to 5352 states and 25297 transitions. [2021-06-05 03:44:07,524 INFO L78 Accepts]: Start accepts. Automaton has 5352 states and 25297 transitions. Word has length 29 [2021-06-05 03:44:07,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:07,524 INFO L482 AbstractCegarLoop]: Abstraction has 5352 states and 25297 transitions. [2021-06-05 03:44:07,524 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:07,525 INFO L276 IsEmpty]: Start isEmpty. Operand 5352 states and 25297 transitions. [2021-06-05 03:44:07,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:07,533 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:07,533 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:07,534 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable629 [2021-06-05 03:44:07,534 INFO L430 AbstractCegarLoop]: === Iteration 631 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:07,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:07,534 INFO L82 PathProgramCache]: Analyzing trace with hash -1226481849, now seen corresponding path program 626 times [2021-06-05 03:44:07,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:07,534 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176102143] [2021-06-05 03:44:07,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:07,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:07,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:07,656 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:07,656 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176102143] [2021-06-05 03:44:07,656 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176102143] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:07,656 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:07,656 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:07,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923471518] [2021-06-05 03:44:07,656 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:07,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:07,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:07,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:07,656 INFO L87 Difference]: Start difference. First operand 5352 states and 25297 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:07,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:07,770 INFO L93 Difference]: Finished difference Result 12084 states and 53914 transitions. [2021-06-05 03:44:07,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:07,770 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:07,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:07,798 INFO L225 Difference]: With dead ends: 12084 [2021-06-05 03:44:07,798 INFO L226 Difference]: Without dead ends: 11464 [2021-06-05 03:44:07,798 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 145.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:07,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11464 states. [2021-06-05 03:44:08,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11464 to 5209. [2021-06-05 03:44:08,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5209 states, 5208 states have (on average 4.746927803379417) internal successors, (24722), 5208 states have internal predecessors, (24722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:08,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5209 states to 5209 states and 24722 transitions. [2021-06-05 03:44:08,031 INFO L78 Accepts]: Start accepts. Automaton has 5209 states and 24722 transitions. Word has length 29 [2021-06-05 03:44:08,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:08,031 INFO L482 AbstractCegarLoop]: Abstraction has 5209 states and 24722 transitions. [2021-06-05 03:44:08,031 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:08,031 INFO L276 IsEmpty]: Start isEmpty. Operand 5209 states and 24722 transitions. [2021-06-05 03:44:08,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:08,040 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:08,040 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:08,040 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable630 [2021-06-05 03:44:08,040 INFO L430 AbstractCegarLoop]: === Iteration 632 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:08,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:08,040 INFO L82 PathProgramCache]: Analyzing trace with hash 1506520775, now seen corresponding path program 627 times [2021-06-05 03:44:08,040 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:08,040 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025240171] [2021-06-05 03:44:08,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:08,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:08,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:08,169 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:08,169 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025240171] [2021-06-05 03:44:08,169 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025240171] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:08,169 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:08,169 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:08,169 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997104369] [2021-06-05 03:44:08,169 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:08,169 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:08,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:08,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:08,170 INFO L87 Difference]: Start difference. First operand 5209 states and 24722 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:08,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:08,266 INFO L93 Difference]: Finished difference Result 12024 states and 53696 transitions. [2021-06-05 03:44:08,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:08,266 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:08,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:08,294 INFO L225 Difference]: With dead ends: 12024 [2021-06-05 03:44:08,294 INFO L226 Difference]: Without dead ends: 11482 [2021-06-05 03:44:08,294 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 135.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:08,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11482 states. [2021-06-05 03:44:08,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11482 to 5289. [2021-06-05 03:44:08,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5289 states, 5288 states have (on average 4.7295763993948565) internal successors, (25010), 5288 states have internal predecessors, (25010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:08,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5289 states to 5289 states and 25010 transitions. [2021-06-05 03:44:08,527 INFO L78 Accepts]: Start accepts. Automaton has 5289 states and 25010 transitions. Word has length 29 [2021-06-05 03:44:08,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:08,527 INFO L482 AbstractCegarLoop]: Abstraction has 5289 states and 25010 transitions. [2021-06-05 03:44:08,527 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:08,527 INFO L276 IsEmpty]: Start isEmpty. Operand 5289 states and 25010 transitions. [2021-06-05 03:44:08,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:08,536 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:08,536 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:08,536 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable631 [2021-06-05 03:44:08,536 INFO L430 AbstractCegarLoop]: === Iteration 633 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:08,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:08,536 INFO L82 PathProgramCache]: Analyzing trace with hash -181725497, now seen corresponding path program 628 times [2021-06-05 03:44:08,536 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:08,536 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207711679] [2021-06-05 03:44:08,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:08,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:08,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:08,665 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:08,665 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207711679] [2021-06-05 03:44:08,665 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207711679] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:08,665 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:08,665 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:08,665 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717833643] [2021-06-05 03:44:08,665 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:08,665 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:08,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:08,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:08,666 INFO L87 Difference]: Start difference. First operand 5289 states and 25010 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:08,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:08,772 INFO L93 Difference]: Finished difference Result 11897 states and 53089 transitions. [2021-06-05 03:44:08,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:08,772 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:08,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:08,801 INFO L225 Difference]: With dead ends: 11897 [2021-06-05 03:44:08,802 INFO L226 Difference]: Without dead ends: 11402 [2021-06-05 03:44:08,802 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 136.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:08,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11402 states. [2021-06-05 03:44:09,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11402 to 5209. [2021-06-05 03:44:09,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5209 states, 5208 states have (on average 4.739247311827957) internal successors, (24682), 5208 states have internal predecessors, (24682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:09,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5209 states to 5209 states and 24682 transitions. [2021-06-05 03:44:09,035 INFO L78 Accepts]: Start accepts. Automaton has 5209 states and 24682 transitions. Word has length 29 [2021-06-05 03:44:09,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:09,035 INFO L482 AbstractCegarLoop]: Abstraction has 5209 states and 24682 transitions. [2021-06-05 03:44:09,035 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:09,036 INFO L276 IsEmpty]: Start isEmpty. Operand 5209 states and 24682 transitions. [2021-06-05 03:44:09,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:09,044 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:09,044 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:09,044 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable632 [2021-06-05 03:44:09,044 INFO L430 AbstractCegarLoop]: === Iteration 634 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:09,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:09,045 INFO L82 PathProgramCache]: Analyzing trace with hash 1894525737, now seen corresponding path program 629 times [2021-06-05 03:44:09,045 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:09,045 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199924959] [2021-06-05 03:44:09,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:09,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:09,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:09,175 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:09,175 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199924959] [2021-06-05 03:44:09,175 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199924959] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:09,175 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:09,175 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:09,175 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824993984] [2021-06-05 03:44:09,175 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:09,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:09,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:09,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:09,175 INFO L87 Difference]: Start difference. First operand 5209 states and 24682 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:09,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:09,304 INFO L93 Difference]: Finished difference Result 11862 states and 52996 transitions. [2021-06-05 03:44:09,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:09,304 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:09,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:09,332 INFO L225 Difference]: With dead ends: 11862 [2021-06-05 03:44:09,332 INFO L226 Difference]: Without dead ends: 11385 [2021-06-05 03:44:09,332 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 153.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:09,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11385 states. [2021-06-05 03:44:09,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11385 to 5257. [2021-06-05 03:44:09,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5257 states, 5256 states have (on average 4.72945205479452) internal successors, (24858), 5256 states have internal predecessors, (24858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:09,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5257 states to 5257 states and 24858 transitions. [2021-06-05 03:44:09,564 INFO L78 Accepts]: Start accepts. Automaton has 5257 states and 24858 transitions. Word has length 29 [2021-06-05 03:44:09,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:09,564 INFO L482 AbstractCegarLoop]: Abstraction has 5257 states and 24858 transitions. [2021-06-05 03:44:09,564 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:09,564 INFO L276 IsEmpty]: Start isEmpty. Operand 5257 states and 24858 transitions. [2021-06-05 03:44:09,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:09,573 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:09,573 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:09,573 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable633 [2021-06-05 03:44:09,573 INFO L430 AbstractCegarLoop]: === Iteration 635 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:09,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:09,573 INFO L82 PathProgramCache]: Analyzing trace with hash 1047728775, now seen corresponding path program 630 times [2021-06-05 03:44:09,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:09,573 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131016785] [2021-06-05 03:44:09,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:09,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:09,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:09,707 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:09,707 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131016785] [2021-06-05 03:44:09,707 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131016785] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:09,707 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:09,707 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:09,707 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810755105] [2021-06-05 03:44:09,707 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:09,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:09,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:09,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:09,707 INFO L87 Difference]: Start difference. First operand 5257 states and 24858 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:09,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:09,805 INFO L93 Difference]: Finished difference Result 11800 states and 52679 transitions. [2021-06-05 03:44:09,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:09,806 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:09,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:09,834 INFO L225 Difference]: With dead ends: 11800 [2021-06-05 03:44:09,834 INFO L226 Difference]: Without dead ends: 11281 [2021-06-05 03:44:09,834 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 138.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:09,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11281 states. [2021-06-05 03:44:10,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11281 to 5153. [2021-06-05 03:44:10,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 5152 states have (on average 4.7519409937888195) internal successors, (24482), 5152 states have internal predecessors, (24482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:10,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 24482 transitions. [2021-06-05 03:44:10,063 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 24482 transitions. Word has length 29 [2021-06-05 03:44:10,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:10,063 INFO L482 AbstractCegarLoop]: Abstraction has 5153 states and 24482 transitions. [2021-06-05 03:44:10,063 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:10,063 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 24482 transitions. [2021-06-05 03:44:10,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:10,072 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:10,072 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:10,072 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable634 [2021-06-05 03:44:10,072 INFO L430 AbstractCegarLoop]: === Iteration 636 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:10,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:10,072 INFO L82 PathProgramCache]: Analyzing trace with hash 65081957, now seen corresponding path program 631 times [2021-06-05 03:44:10,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:10,072 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125169329] [2021-06-05 03:44:10,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:10,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:10,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:10,189 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:10,189 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125169329] [2021-06-05 03:44:10,189 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125169329] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:10,189 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:10,189 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:10,189 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032540650] [2021-06-05 03:44:10,189 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:10,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:10,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:10,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:10,190 INFO L87 Difference]: Start difference. First operand 5153 states and 24482 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:10,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:10,291 INFO L93 Difference]: Finished difference Result 12275 states and 54864 transitions. [2021-06-05 03:44:10,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:10,291 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:10,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:10,320 INFO L225 Difference]: With dead ends: 12275 [2021-06-05 03:44:10,320 INFO L226 Difference]: Without dead ends: 11733 [2021-06-05 03:44:10,320 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 124.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:10,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11733 states. [2021-06-05 03:44:10,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11733 to 5366. [2021-06-05 03:44:10,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5366 states, 5365 states have (on average 4.724324324324324) internal successors, (25346), 5365 states have internal predecessors, (25346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:10,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5366 states to 5366 states and 25346 transitions. [2021-06-05 03:44:10,561 INFO L78 Accepts]: Start accepts. Automaton has 5366 states and 25346 transitions. Word has length 29 [2021-06-05 03:44:10,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:10,562 INFO L482 AbstractCegarLoop]: Abstraction has 5366 states and 25346 transitions. [2021-06-05 03:44:10,562 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:10,562 INFO L276 IsEmpty]: Start isEmpty. Operand 5366 states and 25346 transitions. [2021-06-05 03:44:10,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:10,571 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:10,571 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:10,571 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable635 [2021-06-05 03:44:10,571 INFO L430 AbstractCegarLoop]: === Iteration 637 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:10,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:10,571 INFO L82 PathProgramCache]: Analyzing trace with hash 1146144583, now seen corresponding path program 632 times [2021-06-05 03:44:10,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:10,571 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964589779] [2021-06-05 03:44:10,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:10,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:10,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:10,687 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:10,687 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964589779] [2021-06-05 03:44:10,687 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964589779] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:10,687 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:10,687 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:10,687 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429013667] [2021-06-05 03:44:10,687 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:10,687 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:10,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:10,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:10,687 INFO L87 Difference]: Start difference. First operand 5366 states and 25346 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:10,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:10,805 INFO L93 Difference]: Finished difference Result 12210 states and 54495 transitions. [2021-06-05 03:44:10,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:10,805 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:10,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:10,834 INFO L225 Difference]: With dead ends: 12210 [2021-06-05 03:44:10,834 INFO L226 Difference]: Without dead ends: 11590 [2021-06-05 03:44:10,834 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 139.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:10,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11590 states. [2021-06-05 03:44:11,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11590 to 5223. [2021-06-05 03:44:11,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5223 states, 5222 states have (on average 4.740903868249712) internal successors, (24757), 5222 states have internal predecessors, (24757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:11,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5223 states to 5223 states and 24757 transitions. [2021-06-05 03:44:11,067 INFO L78 Accepts]: Start accepts. Automaton has 5223 states and 24757 transitions. Word has length 29 [2021-06-05 03:44:11,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:11,067 INFO L482 AbstractCegarLoop]: Abstraction has 5223 states and 24757 transitions. [2021-06-05 03:44:11,067 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:11,067 INFO L276 IsEmpty]: Start isEmpty. Operand 5223 states and 24757 transitions. [2021-06-05 03:44:11,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:11,076 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:11,076 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:11,076 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable636 [2021-06-05 03:44:11,076 INFO L430 AbstractCegarLoop]: === Iteration 638 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:11,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:11,076 INFO L82 PathProgramCache]: Analyzing trace with hash 455043685, now seen corresponding path program 633 times [2021-06-05 03:44:11,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:11,076 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466652046] [2021-06-05 03:44:11,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:11,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:11,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:11,211 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:11,211 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466652046] [2021-06-05 03:44:11,211 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466652046] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:11,211 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:11,211 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:11,211 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679956203] [2021-06-05 03:44:11,211 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:11,211 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:11,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:11,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:11,211 INFO L87 Difference]: Start difference. First operand 5223 states and 24757 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:11,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:11,315 INFO L93 Difference]: Finished difference Result 12234 states and 54655 transitions. [2021-06-05 03:44:11,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:11,315 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:11,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:11,344 INFO L225 Difference]: With dead ends: 12234 [2021-06-05 03:44:11,344 INFO L226 Difference]: Without dead ends: 11692 [2021-06-05 03:44:11,344 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 142.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:11,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11692 states. [2021-06-05 03:44:11,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11692 to 5331. [2021-06-05 03:44:11,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5331 states, 5330 states have (on average 4.719887429643527) internal successors, (25157), 5330 states have internal predecessors, (25157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:11,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5331 states to 5331 states and 25157 transitions. [2021-06-05 03:44:11,580 INFO L78 Accepts]: Start accepts. Automaton has 5331 states and 25157 transitions. Word has length 29 [2021-06-05 03:44:11,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:11,580 INFO L482 AbstractCegarLoop]: Abstraction has 5331 states and 25157 transitions. [2021-06-05 03:44:11,580 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:11,580 INFO L276 IsEmpty]: Start isEmpty. Operand 5331 states and 25157 transitions. [2021-06-05 03:44:11,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:11,589 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:11,589 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:11,589 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable637 [2021-06-05 03:44:11,589 INFO L430 AbstractCegarLoop]: === Iteration 639 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:11,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:11,589 INFO L82 PathProgramCache]: Analyzing trace with hash -2052541851, now seen corresponding path program 634 times [2021-06-05 03:44:11,589 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:11,589 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586996144] [2021-06-05 03:44:11,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:11,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:11,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:11,723 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:11,723 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586996144] [2021-06-05 03:44:11,723 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586996144] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:11,723 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:11,723 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:11,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941854647] [2021-06-05 03:44:11,723 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:11,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:11,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:11,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:11,723 INFO L87 Difference]: Start difference. First operand 5331 states and 25157 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:11,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:11,841 INFO L93 Difference]: Finished difference Result 12163 states and 54272 transitions. [2021-06-05 03:44:11,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:11,841 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:11,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:11,869 INFO L225 Difference]: With dead ends: 12163 [2021-06-05 03:44:11,870 INFO L226 Difference]: Without dead ends: 11584 [2021-06-05 03:44:11,870 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 153.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:11,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11584 states. [2021-06-05 03:44:12,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11584 to 5223. [2021-06-05 03:44:12,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5223 states, 5222 states have (on average 4.730563002680965) internal successors, (24703), 5222 states have internal predecessors, (24703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:12,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5223 states to 5223 states and 24703 transitions. [2021-06-05 03:44:12,103 INFO L78 Accepts]: Start accepts. Automaton has 5223 states and 24703 transitions. Word has length 29 [2021-06-05 03:44:12,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:12,103 INFO L482 AbstractCegarLoop]: Abstraction has 5223 states and 24703 transitions. [2021-06-05 03:44:12,103 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:12,104 INFO L276 IsEmpty]: Start isEmpty. Operand 5223 states and 24703 transitions. [2021-06-05 03:44:12,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:12,112 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:12,112 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:12,112 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable638 [2021-06-05 03:44:12,112 INFO L430 AbstractCegarLoop]: === Iteration 640 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:12,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:12,112 INFO L82 PathProgramCache]: Analyzing trace with hash 843048647, now seen corresponding path program 635 times [2021-06-05 03:44:12,115 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:12,115 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770451754] [2021-06-05 03:44:12,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:12,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:12,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:12,231 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:12,231 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770451754] [2021-06-05 03:44:12,231 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770451754] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:12,231 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:12,231 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:12,231 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623193325] [2021-06-05 03:44:12,231 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:12,231 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:12,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:12,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:12,232 INFO L87 Difference]: Start difference. First operand 5223 states and 24703 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:12,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:12,350 INFO L93 Difference]: Finished difference Result 12072 states and 53941 transitions. [2021-06-05 03:44:12,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:12,350 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:12,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:12,379 INFO L225 Difference]: With dead ends: 12072 [2021-06-05 03:44:12,379 INFO L226 Difference]: Without dead ends: 11595 [2021-06-05 03:44:12,380 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 139.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:12,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11595 states. [2021-06-05 03:44:12,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11595 to 5299. [2021-06-05 03:44:12,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5299 states, 5298 states have (on average 4.717063042657607) internal successors, (24991), 5298 states have internal predecessors, (24991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:12,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5299 states to 5299 states and 24991 transitions. [2021-06-05 03:44:12,617 INFO L78 Accepts]: Start accepts. Automaton has 5299 states and 24991 transitions. Word has length 29 [2021-06-05 03:44:12,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:12,617 INFO L482 AbstractCegarLoop]: Abstraction has 5299 states and 24991 transitions. [2021-06-05 03:44:12,617 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:12,617 INFO L276 IsEmpty]: Start isEmpty. Operand 5299 states and 24991 transitions. [2021-06-05 03:44:12,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:12,626 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:12,626 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:12,626 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable639 [2021-06-05 03:44:12,626 INFO L430 AbstractCegarLoop]: === Iteration 641 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:12,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:12,626 INFO L82 PathProgramCache]: Analyzing trace with hash 1752653605, now seen corresponding path program 636 times [2021-06-05 03:44:12,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:12,626 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003073065] [2021-06-05 03:44:12,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:12,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:12,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:12,742 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:12,742 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003073065] [2021-06-05 03:44:12,742 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003073065] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:12,742 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:12,742 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:12,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162898612] [2021-06-05 03:44:12,743 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:12,743 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:12,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:12,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:12,743 INFO L87 Difference]: Start difference. First operand 5299 states and 24991 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:12,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:12,862 INFO L93 Difference]: Finished difference Result 12066 states and 53848 transitions. [2021-06-05 03:44:12,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:12,862 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:12,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:12,890 INFO L225 Difference]: With dead ends: 12066 [2021-06-05 03:44:12,890 INFO L226 Difference]: Without dead ends: 11449 [2021-06-05 03:44:12,890 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 138.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:13,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11449 states. [2021-06-05 03:44:13,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11449 to 5153. [2021-06-05 03:44:13,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 5152 states have (on average 4.746506211180124) internal successors, (24454), 5152 states have internal predecessors, (24454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:13,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 24454 transitions. [2021-06-05 03:44:13,173 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 24454 transitions. Word has length 29 [2021-06-05 03:44:13,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:13,173 INFO L482 AbstractCegarLoop]: Abstraction has 5153 states and 24454 transitions. [2021-06-05 03:44:13,173 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:13,173 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 24454 transitions. [2021-06-05 03:44:13,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:13,181 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:13,182 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:13,182 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable640 [2021-06-05 03:44:13,182 INFO L430 AbstractCegarLoop]: === Iteration 642 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:13,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:13,182 INFO L82 PathProgramCache]: Analyzing trace with hash -724304313, now seen corresponding path program 637 times [2021-06-05 03:44:13,182 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:13,182 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239464280] [2021-06-05 03:44:13,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:13,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:13,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:13,313 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:13,313 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239464280] [2021-06-05 03:44:13,313 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239464280] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:13,313 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:13,313 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:13,313 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187947878] [2021-06-05 03:44:13,313 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:13,313 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:13,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:13,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:13,314 INFO L87 Difference]: Start difference. First operand 5153 states and 24454 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:13,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:13,414 INFO L93 Difference]: Finished difference Result 11967 states and 53493 transitions. [2021-06-05 03:44:13,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:13,414 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:13,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:13,443 INFO L225 Difference]: With dead ends: 11967 [2021-06-05 03:44:13,443 INFO L226 Difference]: Without dead ends: 11425 [2021-06-05 03:44:13,443 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 137.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:13,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11425 states. [2021-06-05 03:44:13,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11425 to 5273. [2021-06-05 03:44:13,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5273 states, 5272 states have (on average 4.731790591805766) internal successors, (24946), 5272 states have internal predecessors, (24946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:13,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5273 states to 5273 states and 24946 transitions. [2021-06-05 03:44:13,677 INFO L78 Accepts]: Start accepts. Automaton has 5273 states and 24946 transitions. Word has length 29 [2021-06-05 03:44:13,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:13,677 INFO L482 AbstractCegarLoop]: Abstraction has 5273 states and 24946 transitions. [2021-06-05 03:44:13,677 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:13,678 INFO L276 IsEmpty]: Start isEmpty. Operand 5273 states and 24946 transitions. [2021-06-05 03:44:13,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:13,686 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:13,686 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:13,686 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable641 [2021-06-05 03:44:13,686 INFO L430 AbstractCegarLoop]: === Iteration 643 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:13,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:13,687 INFO L82 PathProgramCache]: Analyzing trace with hash 1882416711, now seen corresponding path program 638 times [2021-06-05 03:44:13,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:13,687 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881913251] [2021-06-05 03:44:13,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:13,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:13,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:13,818 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:13,818 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881913251] [2021-06-05 03:44:13,818 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881913251] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:13,818 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:13,818 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:13,818 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106515975] [2021-06-05 03:44:13,818 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:13,818 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:13,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:13,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:13,818 INFO L87 Difference]: Start difference. First operand 5273 states and 24946 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:13,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:13,918 INFO L93 Difference]: Finished difference Result 11840 states and 52886 transitions. [2021-06-05 03:44:13,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:13,918 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:13,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:13,946 INFO L225 Difference]: With dead ends: 11840 [2021-06-05 03:44:13,946 INFO L226 Difference]: Without dead ends: 11345 [2021-06-05 03:44:13,946 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 137.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:14,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11345 states. [2021-06-05 03:44:14,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11345 to 5193. [2021-06-05 03:44:14,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5193 states, 5192 states have (on average 4.741525423728813) internal successors, (24618), 5192 states have internal predecessors, (24618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:14,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5193 states to 5193 states and 24618 transitions. [2021-06-05 03:44:14,175 INFO L78 Accepts]: Start accepts. Automaton has 5193 states and 24618 transitions. Word has length 29 [2021-06-05 03:44:14,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:14,176 INFO L482 AbstractCegarLoop]: Abstraction has 5193 states and 24618 transitions. [2021-06-05 03:44:14,176 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:14,176 INFO L276 IsEmpty]: Start isEmpty. Operand 5193 states and 24618 transitions. [2021-06-05 03:44:14,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:14,184 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:14,184 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:14,184 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable642 [2021-06-05 03:44:14,184 INFO L430 AbstractCegarLoop]: === Iteration 644 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:14,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:14,185 INFO L82 PathProgramCache]: Analyzing trace with hash 1537650341, now seen corresponding path program 639 times [2021-06-05 03:44:14,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:14,185 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051191410] [2021-06-05 03:44:14,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:14,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:14,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:14,322 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:14,322 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051191410] [2021-06-05 03:44:14,322 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051191410] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:14,322 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:14,322 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:14,322 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023610379] [2021-06-05 03:44:14,322 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:14,322 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:14,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:14,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:14,322 INFO L87 Difference]: Start difference. First operand 5193 states and 24618 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:14,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:14,424 INFO L93 Difference]: Finished difference Result 12051 states and 53845 transitions. [2021-06-05 03:44:14,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:14,425 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:14,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:14,453 INFO L225 Difference]: With dead ends: 12051 [2021-06-05 03:44:14,453 INFO L226 Difference]: Without dead ends: 11509 [2021-06-05 03:44:14,453 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 144.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:14,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11509 states. [2021-06-05 03:44:14,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11509 to 5301. [2021-06-05 03:44:14,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5301 states, 5300 states have (on average 4.720377358490566) internal successors, (25018), 5300 states have internal predecessors, (25018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:14,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5301 states to 5301 states and 25018 transitions. [2021-06-05 03:44:14,686 INFO L78 Accepts]: Start accepts. Automaton has 5301 states and 25018 transitions. Word has length 29 [2021-06-05 03:44:14,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:14,686 INFO L482 AbstractCegarLoop]: Abstraction has 5301 states and 25018 transitions. [2021-06-05 03:44:14,686 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:14,686 INFO L276 IsEmpty]: Start isEmpty. Operand 5301 states and 25018 transitions. [2021-06-05 03:44:14,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:14,696 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:14,696 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:14,696 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable643 [2021-06-05 03:44:14,696 INFO L430 AbstractCegarLoop]: === Iteration 645 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:14,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:14,696 INFO L82 PathProgramCache]: Analyzing trace with hash -342940089, now seen corresponding path program 640 times [2021-06-05 03:44:14,696 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:14,696 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65484731] [2021-06-05 03:44:14,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:14,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:14,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:14,831 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:14,831 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65484731] [2021-06-05 03:44:14,831 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65484731] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:14,831 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:14,831 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:14,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788045642] [2021-06-05 03:44:14,832 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:14,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:14,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:14,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:14,832 INFO L87 Difference]: Start difference. First operand 5301 states and 25018 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:14,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:14,953 INFO L93 Difference]: Finished difference Result 11980 states and 53462 transitions. [2021-06-05 03:44:14,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:14,953 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:14,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:14,982 INFO L225 Difference]: With dead ends: 11980 [2021-06-05 03:44:14,982 INFO L226 Difference]: Without dead ends: 11401 [2021-06-05 03:44:14,982 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 158.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:15,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11401 states. [2021-06-05 03:44:15,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11401 to 5193. [2021-06-05 03:44:15,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5193 states, 5192 states have (on average 4.73382126348228) internal successors, (24578), 5192 states have internal predecessors, (24578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:15,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5193 states to 5193 states and 24578 transitions. [2021-06-05 03:44:15,213 INFO L78 Accepts]: Start accepts. Automaton has 5193 states and 24578 transitions. Word has length 29 [2021-06-05 03:44:15,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:15,213 INFO L482 AbstractCegarLoop]: Abstraction has 5193 states and 24578 transitions. [2021-06-05 03:44:15,213 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:15,213 INFO L276 IsEmpty]: Start isEmpty. Operand 5193 states and 24578 transitions. [2021-06-05 03:44:15,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:15,222 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:15,222 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:15,222 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable644 [2021-06-05 03:44:15,222 INFO L430 AbstractCegarLoop]: === Iteration 646 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:15,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:15,222 INFO L82 PathProgramCache]: Analyzing trace with hash 1569369671, now seen corresponding path program 641 times [2021-06-05 03:44:15,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:15,222 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226223295] [2021-06-05 03:44:15,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:15,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:15,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:15,357 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:15,357 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226223295] [2021-06-05 03:44:15,357 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226223295] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:15,357 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:15,357 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:15,357 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641362966] [2021-06-05 03:44:15,357 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:15,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:15,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:15,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:15,358 INFO L87 Difference]: Start difference. First operand 5193 states and 24578 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:15,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:15,457 INFO L93 Difference]: Finished difference Result 11737 states and 52467 transitions. [2021-06-05 03:44:15,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:15,458 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:15,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:15,485 INFO L225 Difference]: With dead ends: 11737 [2021-06-05 03:44:15,485 INFO L226 Difference]: Without dead ends: 11322 [2021-06-05 03:44:15,486 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 141.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:15,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11322 states. [2021-06-05 03:44:15,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11322 to 5241. [2021-06-05 03:44:15,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5241 states, 5240 states have (on average 4.724045801526717) internal successors, (24754), 5240 states have internal predecessors, (24754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:15,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5241 states to 5241 states and 24754 transitions. [2021-06-05 03:44:15,717 INFO L78 Accepts]: Start accepts. Automaton has 5241 states and 24754 transitions. Word has length 29 [2021-06-05 03:44:15,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:15,717 INFO L482 AbstractCegarLoop]: Abstraction has 5241 states and 24754 transitions. [2021-06-05 03:44:15,717 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:15,717 INFO L276 IsEmpty]: Start isEmpty. Operand 5241 states and 24754 transitions. [2021-06-05 03:44:15,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:15,726 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:15,726 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:15,726 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable645 [2021-06-05 03:44:15,726 INFO L430 AbstractCegarLoop]: === Iteration 647 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:15,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:15,726 INFO L82 PathProgramCache]: Analyzing trace with hash -546709979, now seen corresponding path program 642 times [2021-06-05 03:44:15,726 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:15,726 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044505019] [2021-06-05 03:44:15,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:15,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:15,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:15,860 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:15,860 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044505019] [2021-06-05 03:44:15,860 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044505019] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:15,860 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:15,860 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:15,860 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580690916] [2021-06-05 03:44:15,861 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:15,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:15,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:15,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:15,861 INFO L87 Difference]: Start difference. First operand 5241 states and 24754 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:15,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:15,978 INFO L93 Difference]: Finished difference Result 11793 states and 52671 transitions. [2021-06-05 03:44:15,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:15,979 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:15,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:16,007 INFO L225 Difference]: With dead ends: 11793 [2021-06-05 03:44:16,007 INFO L226 Difference]: Without dead ends: 11234 [2021-06-05 03:44:16,007 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 157.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:16,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11234 states. [2021-06-05 03:44:16,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11234 to 5153. [2021-06-05 03:44:16,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 5152 states have (on average 4.742624223602484) internal successors, (24434), 5152 states have internal predecessors, (24434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:16,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 24434 transitions. [2021-06-05 03:44:16,235 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 24434 transitions. Word has length 29 [2021-06-05 03:44:16,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:16,236 INFO L482 AbstractCegarLoop]: Abstraction has 5153 states and 24434 transitions. [2021-06-05 03:44:16,236 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:16,236 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 24434 transitions. [2021-06-05 03:44:16,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:16,244 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:16,244 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:16,244 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable646 [2021-06-05 03:44:16,244 INFO L430 AbstractCegarLoop]: === Iteration 648 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:16,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:16,245 INFO L82 PathProgramCache]: Analyzing trace with hash -644783575, now seen corresponding path program 643 times [2021-06-05 03:44:16,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:16,245 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554735324] [2021-06-05 03:44:16,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:16,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:16,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:16,376 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:16,376 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554735324] [2021-06-05 03:44:16,376 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554735324] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:16,376 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:16,376 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:16,376 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549384746] [2021-06-05 03:44:16,376 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:16,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:16,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:16,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:16,377 INFO L87 Difference]: Start difference. First operand 5153 states and 24434 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:16,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:16,504 INFO L93 Difference]: Finished difference Result 11660 states and 52187 transitions. [2021-06-05 03:44:16,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:16,505 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:16,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:16,532 INFO L225 Difference]: With dead ends: 11660 [2021-06-05 03:44:16,532 INFO L226 Difference]: Without dead ends: 11183 [2021-06-05 03:44:16,532 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 155.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:16,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11183 states. [2021-06-05 03:44:16,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11183 to 5225. [2021-06-05 03:44:16,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5225 states, 5224 states have (on average 4.73468606431853) internal successors, (24734), 5224 states have internal predecessors, (24734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:16,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5225 states to 5225 states and 24734 transitions. [2021-06-05 03:44:16,761 INFO L78 Accepts]: Start accepts. Automaton has 5225 states and 24734 transitions. Word has length 29 [2021-06-05 03:44:16,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:16,761 INFO L482 AbstractCegarLoop]: Abstraction has 5225 states and 24734 transitions. [2021-06-05 03:44:16,761 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:16,761 INFO L276 IsEmpty]: Start isEmpty. Operand 5225 states and 24734 transitions. [2021-06-05 03:44:16,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:16,770 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:16,770 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:16,770 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable647 [2021-06-05 03:44:16,770 INFO L430 AbstractCegarLoop]: === Iteration 649 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:16,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:16,771 INFO L82 PathProgramCache]: Analyzing trace with hash -1491580537, now seen corresponding path program 644 times [2021-06-05 03:44:16,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:16,771 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231580988] [2021-06-05 03:44:16,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:16,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:16,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:16,902 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:16,902 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231580988] [2021-06-05 03:44:16,903 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231580988] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:16,903 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:16,903 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:16,903 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340389851] [2021-06-05 03:44:16,903 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:16,903 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:16,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:16,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:16,903 INFO L87 Difference]: Start difference. First operand 5225 states and 24734 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:17,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:17,005 INFO L93 Difference]: Finished difference Result 11598 states and 51870 transitions. [2021-06-05 03:44:17,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:17,005 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:17,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:17,034 INFO L225 Difference]: With dead ends: 11598 [2021-06-05 03:44:17,034 INFO L226 Difference]: Without dead ends: 11135 [2021-06-05 03:44:17,034 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 139.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:17,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11135 states. [2021-06-05 03:44:17,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11135 to 5177. [2021-06-05 03:44:17,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5177 states, 5176 states have (on average 4.739953632148377) internal successors, (24534), 5176 states have internal predecessors, (24534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:17,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5177 states to 5177 states and 24534 transitions. [2021-06-05 03:44:17,266 INFO L78 Accepts]: Start accepts. Automaton has 5177 states and 24534 transitions. Word has length 29 [2021-06-05 03:44:17,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:17,266 INFO L482 AbstractCegarLoop]: Abstraction has 5177 states and 24534 transitions. [2021-06-05 03:44:17,266 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:17,267 INFO L276 IsEmpty]: Start isEmpty. Operand 5177 states and 24534 transitions. [2021-06-05 03:44:17,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:17,275 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:17,275 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:17,275 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable648 [2021-06-05 03:44:17,275 INFO L430 AbstractCegarLoop]: === Iteration 650 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:17,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:17,276 INFO L82 PathProgramCache]: Analyzing trace with hash 1617171079, now seen corresponding path program 645 times [2021-06-05 03:44:17,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:17,276 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683313221] [2021-06-05 03:44:17,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:17,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:17,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:17,398 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:17,398 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683313221] [2021-06-05 03:44:17,398 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683313221] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:17,398 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:17,398 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:17,398 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618037190] [2021-06-05 03:44:17,398 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:17,398 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:17,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:17,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:17,399 INFO L87 Difference]: Start difference. First operand 5177 states and 24534 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:17,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:17,526 INFO L93 Difference]: Finished difference Result 11744 states and 52555 transitions. [2021-06-05 03:44:17,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:17,527 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:17,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:17,554 INFO L225 Difference]: With dead ends: 11744 [2021-06-05 03:44:17,554 INFO L226 Difference]: Without dead ends: 11267 [2021-06-05 03:44:17,555 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 146.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:17,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11267 states. [2021-06-05 03:44:17,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11267 to 5253. [2021-06-05 03:44:17,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5253 states, 5252 states have (on average 4.7261995430312265) internal successors, (24822), 5252 states have internal predecessors, (24822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:17,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5253 states to 5253 states and 24822 transitions. [2021-06-05 03:44:17,787 INFO L78 Accepts]: Start accepts. Automaton has 5253 states and 24822 transitions. Word has length 29 [2021-06-05 03:44:17,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:17,787 INFO L482 AbstractCegarLoop]: Abstraction has 5253 states and 24822 transitions. [2021-06-05 03:44:17,787 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:17,787 INFO L276 IsEmpty]: Start isEmpty. Operand 5253 states and 24822 transitions. [2021-06-05 03:44:17,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:17,796 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:17,796 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:17,796 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable649 [2021-06-05 03:44:17,796 INFO L430 AbstractCegarLoop]: === Iteration 651 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:17,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:17,797 INFO L82 PathProgramCache]: Analyzing trace with hash -1141196153, now seen corresponding path program 646 times [2021-06-05 03:44:17,797 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:17,797 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9946091] [2021-06-05 03:44:17,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:17,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:17,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:17,919 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:17,919 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9946091] [2021-06-05 03:44:17,919 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9946091] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:17,919 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:17,919 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:17,919 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893050603] [2021-06-05 03:44:17,920 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:17,920 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:17,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:17,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:17,920 INFO L87 Difference]: Start difference. First operand 5253 states and 24822 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:18,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:18,035 INFO L93 Difference]: Finished difference Result 11738 states and 52462 transitions. [2021-06-05 03:44:18,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:18,036 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:18,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:18,063 INFO L225 Difference]: With dead ends: 11738 [2021-06-05 03:44:18,064 INFO L226 Difference]: Without dead ends: 11191 [2021-06-05 03:44:18,064 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 146.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:18,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11191 states. [2021-06-05 03:44:18,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11191 to 5177. [2021-06-05 03:44:18,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5177 states, 5176 states have (on average 4.735316846986089) internal successors, (24510), 5176 states have internal predecessors, (24510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:18,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5177 states to 5177 states and 24510 transitions. [2021-06-05 03:44:18,295 INFO L78 Accepts]: Start accepts. Automaton has 5177 states and 24510 transitions. Word has length 29 [2021-06-05 03:44:18,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:18,295 INFO L482 AbstractCegarLoop]: Abstraction has 5177 states and 24510 transitions. [2021-06-05 03:44:18,295 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:18,295 INFO L276 IsEmpty]: Start isEmpty. Operand 5177 states and 24510 transitions. [2021-06-05 03:44:18,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:18,304 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:18,304 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:18,304 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable650 [2021-06-05 03:44:18,304 INFO L430 AbstractCegarLoop]: === Iteration 652 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:18,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:18,304 INFO L82 PathProgramCache]: Analyzing trace with hash 760423013, now seen corresponding path program 647 times [2021-06-05 03:44:18,305 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:18,305 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630330858] [2021-06-05 03:44:18,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:18,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:18,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:18,441 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:18,441 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630330858] [2021-06-05 03:44:18,441 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630330858] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:18,441 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:18,441 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:18,441 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942638716] [2021-06-05 03:44:18,442 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:18,442 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:18,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:18,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:18,442 INFO L87 Difference]: Start difference. First operand 5177 states and 24510 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:18,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:18,534 INFO L93 Difference]: Finished difference Result 11592 states and 51853 transitions. [2021-06-05 03:44:18,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:18,535 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:18,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:18,562 INFO L225 Difference]: With dead ends: 11592 [2021-06-05 03:44:18,563 INFO L226 Difference]: Without dead ends: 11177 [2021-06-05 03:44:18,563 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 143.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:18,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11177 states. [2021-06-05 03:44:18,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11177 to 5225. [2021-06-05 03:44:18,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5225 states, 5224 states have (on average 4.725497702909648) internal successors, (24686), 5224 states have internal predecessors, (24686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:18,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5225 states to 5225 states and 24686 transitions. [2021-06-05 03:44:18,795 INFO L78 Accepts]: Start accepts. Automaton has 5225 states and 24686 transitions. Word has length 29 [2021-06-05 03:44:18,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:18,795 INFO L482 AbstractCegarLoop]: Abstraction has 5225 states and 24686 transitions. [2021-06-05 03:44:18,795 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:18,795 INFO L276 IsEmpty]: Start isEmpty. Operand 5225 states and 24686 transitions. [2021-06-05 03:44:18,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:18,804 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:18,804 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:18,804 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable651 [2021-06-05 03:44:18,804 INFO L430 AbstractCegarLoop]: === Iteration 653 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:18,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:18,804 INFO L82 PathProgramCache]: Analyzing trace with hash -413536697, now seen corresponding path program 648 times [2021-06-05 03:44:18,804 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:18,804 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780800149] [2021-06-05 03:44:18,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:18,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:18,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:18,939 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:18,939 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780800149] [2021-06-05 03:44:18,939 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780800149] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:18,939 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:18,939 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:18,939 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522216834] [2021-06-05 03:44:18,939 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:18,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:18,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:18,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:18,939 INFO L87 Difference]: Start difference. First operand 5225 states and 24686 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:19,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:19,052 INFO L93 Difference]: Finished difference Result 11648 states and 52057 transitions. [2021-06-05 03:44:19,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:19,052 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:19,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:19,081 INFO L225 Difference]: With dead ends: 11648 [2021-06-05 03:44:19,081 INFO L226 Difference]: Without dead ends: 11077 [2021-06-05 03:44:19,081 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 158.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:19,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11077 states. [2021-06-05 03:44:19,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11077 to 5125. [2021-06-05 03:44:19,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5125 states, 5124 states have (on average 4.751756440281031) internal successors, (24348), 5124 states have internal predecessors, (24348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:19,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5125 states to 5125 states and 24348 transitions. [2021-06-05 03:44:19,310 INFO L78 Accepts]: Start accepts. Automaton has 5125 states and 24348 transitions. Word has length 29 [2021-06-05 03:44:19,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:19,310 INFO L482 AbstractCegarLoop]: Abstraction has 5125 states and 24348 transitions. [2021-06-05 03:44:19,310 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:19,310 INFO L276 IsEmpty]: Start isEmpty. Operand 5125 states and 24348 transitions. [2021-06-05 03:44:19,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:19,318 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:19,318 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:19,318 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable652 [2021-06-05 03:44:19,319 INFO L430 AbstractCegarLoop]: === Iteration 654 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:19,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:19,319 INFO L82 PathProgramCache]: Analyzing trace with hash -698538553, now seen corresponding path program 649 times [2021-06-05 03:44:19,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:19,319 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347155122] [2021-06-05 03:44:19,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:19,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:19,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:19,430 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:19,430 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347155122] [2021-06-05 03:44:19,430 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347155122] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:19,430 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:19,430 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:19,430 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330524959] [2021-06-05 03:44:19,430 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:19,430 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:19,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:19,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:19,430 INFO L87 Difference]: Start difference. First operand 5125 states and 24348 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:19,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:19,536 INFO L93 Difference]: Finished difference Result 12530 states and 56027 transitions. [2021-06-05 03:44:19,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:19,537 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:19,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:19,567 INFO L225 Difference]: With dead ends: 12530 [2021-06-05 03:44:19,567 INFO L226 Difference]: Without dead ends: 11988 [2021-06-05 03:44:19,567 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 118.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:19,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11988 states. [2021-06-05 03:44:19,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11988 to 5406. [2021-06-05 03:44:19,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5406 states, 5405 states have (on average 4.71822386679001) internal successors, (25502), 5405 states have internal predecessors, (25502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:19,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5406 states to 5406 states and 25502 transitions. [2021-06-05 03:44:19,805 INFO L78 Accepts]: Start accepts. Automaton has 5406 states and 25502 transitions. Word has length 29 [2021-06-05 03:44:19,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:19,805 INFO L482 AbstractCegarLoop]: Abstraction has 5406 states and 25502 transitions. [2021-06-05 03:44:19,805 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:19,805 INFO L276 IsEmpty]: Start isEmpty. Operand 5406 states and 25502 transitions. [2021-06-05 03:44:19,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:19,814 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:19,814 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:19,814 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable653 [2021-06-05 03:44:19,814 INFO L430 AbstractCegarLoop]: === Iteration 655 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:19,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:19,815 INFO L82 PathProgramCache]: Analyzing trace with hash 382524073, now seen corresponding path program 650 times [2021-06-05 03:44:19,815 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:19,815 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786710257] [2021-06-05 03:44:19,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:19,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:19,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:19,925 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:19,925 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786710257] [2021-06-05 03:44:19,925 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786710257] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:19,925 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:19,925 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:19,925 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135305399] [2021-06-05 03:44:19,925 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:19,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:19,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:19,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:19,925 INFO L87 Difference]: Start difference. First operand 5406 states and 25502 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:20,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:20,045 INFO L93 Difference]: Finished difference Result 12465 states and 55658 transitions. [2021-06-05 03:44:20,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:20,046 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:20,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:20,074 INFO L225 Difference]: With dead ends: 12465 [2021-06-05 03:44:20,074 INFO L226 Difference]: Without dead ends: 11845 [2021-06-05 03:44:20,075 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 133.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:20,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11845 states. [2021-06-05 03:44:20,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11845 to 5263. [2021-06-05 03:44:20,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5263 states, 5262 states have (on average 4.734321550741163) internal successors, (24912), 5262 states have internal predecessors, (24912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:20,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5263 states to 5263 states and 24912 transitions. [2021-06-05 03:44:20,310 INFO L78 Accepts]: Start accepts. Automaton has 5263 states and 24912 transitions. Word has length 29 [2021-06-05 03:44:20,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:20,310 INFO L482 AbstractCegarLoop]: Abstraction has 5263 states and 24912 transitions. [2021-06-05 03:44:20,310 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:20,310 INFO L276 IsEmpty]: Start isEmpty. Operand 5263 states and 24912 transitions. [2021-06-05 03:44:20,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:20,319 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:20,319 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:20,319 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable654 [2021-06-05 03:44:20,319 INFO L430 AbstractCegarLoop]: === Iteration 656 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:20,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:20,319 INFO L82 PathProgramCache]: Analyzing trace with hash 394431943, now seen corresponding path program 651 times [2021-06-05 03:44:20,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:20,319 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246486797] [2021-06-05 03:44:20,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:20,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:20,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:20,445 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:20,445 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246486797] [2021-06-05 03:44:20,445 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246486797] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:20,445 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:20,445 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:20,445 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610208202] [2021-06-05 03:44:20,445 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:20,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:20,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:20,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:20,445 INFO L87 Difference]: Start difference. First operand 5263 states and 24912 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:20,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:20,546 INFO L93 Difference]: Finished difference Result 12495 states and 55836 transitions. [2021-06-05 03:44:20,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:20,546 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:20,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:20,575 INFO L225 Difference]: With dead ends: 12495 [2021-06-05 03:44:20,575 INFO L226 Difference]: Without dead ends: 11953 [2021-06-05 03:44:20,575 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:20,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11953 states. [2021-06-05 03:44:20,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11953 to 5373. [2021-06-05 03:44:20,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5373 states, 5372 states have (on average 4.712769918093819) internal successors, (25317), 5372 states have internal predecessors, (25317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:20,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5373 states to 5373 states and 25317 transitions. [2021-06-05 03:44:20,812 INFO L78 Accepts]: Start accepts. Automaton has 5373 states and 25317 transitions. Word has length 29 [2021-06-05 03:44:20,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:20,812 INFO L482 AbstractCegarLoop]: Abstraction has 5373 states and 25317 transitions. [2021-06-05 03:44:20,812 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:20,812 INFO L276 IsEmpty]: Start isEmpty. Operand 5373 states and 25317 transitions. [2021-06-05 03:44:20,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:20,821 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:20,821 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:20,821 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable655 [2021-06-05 03:44:20,821 INFO L430 AbstractCegarLoop]: === Iteration 657 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:20,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:20,821 INFO L82 PathProgramCache]: Analyzing trace with hash 443999687, now seen corresponding path program 652 times [2021-06-05 03:44:20,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:20,821 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153859636] [2021-06-05 03:44:20,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:20,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:20,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:20,931 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:20,931 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153859636] [2021-06-05 03:44:20,931 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153859636] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:20,931 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:20,931 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:20,931 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880118770] [2021-06-05 03:44:20,931 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:20,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:20,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:20,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:20,931 INFO L87 Difference]: Start difference. First operand 5373 states and 25317 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:21,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:21,049 INFO L93 Difference]: Finished difference Result 12428 states and 55463 transitions. [2021-06-05 03:44:21,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:21,049 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:21,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:21,078 INFO L225 Difference]: With dead ends: 12428 [2021-06-05 03:44:21,079 INFO L226 Difference]: Without dead ends: 11843 [2021-06-05 03:44:21,079 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 133.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:21,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11843 states. [2021-06-05 03:44:21,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11843 to 5263. [2021-06-05 03:44:21,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5263 states, 5262 states have (on average 4.723869251235271) internal successors, (24857), 5262 states have internal predecessors, (24857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:21,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5263 states to 5263 states and 24857 transitions. [2021-06-05 03:44:21,315 INFO L78 Accepts]: Start accepts. Automaton has 5263 states and 24857 transitions. Word has length 29 [2021-06-05 03:44:21,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:21,315 INFO L482 AbstractCegarLoop]: Abstraction has 5263 states and 24857 transitions. [2021-06-05 03:44:21,315 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:21,315 INFO L276 IsEmpty]: Start isEmpty. Operand 5263 states and 24857 transitions. [2021-06-05 03:44:21,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:21,324 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:21,324 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:21,324 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable656 [2021-06-05 03:44:21,324 INFO L430 AbstractCegarLoop]: === Iteration 658 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:21,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:21,324 INFO L82 PathProgramCache]: Analyzing trace with hash 782436905, now seen corresponding path program 653 times [2021-06-05 03:44:21,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:21,324 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274948162] [2021-06-05 03:44:21,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:21,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:21,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:21,438 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:21,438 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274948162] [2021-06-05 03:44:21,438 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274948162] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:21,438 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:21,438 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:21,438 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956653643] [2021-06-05 03:44:21,438 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:21,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:21,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:21,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:21,439 INFO L87 Difference]: Start difference. First operand 5263 states and 24857 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:21,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:21,555 INFO L93 Difference]: Finished difference Result 12333 states and 55121 transitions. [2021-06-05 03:44:21,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:21,555 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:21,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:21,583 INFO L225 Difference]: With dead ends: 12333 [2021-06-05 03:44:21,583 INFO L226 Difference]: Without dead ends: 11856 [2021-06-05 03:44:21,584 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 134.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:21,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11856 states. [2021-06-05 03:44:21,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11856 to 5341. [2021-06-05 03:44:21,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5341 states, 5340 states have (on average 4.709737827715355) internal successors, (25150), 5340 states have internal predecessors, (25150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:21,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5341 states to 5341 states and 25150 transitions. [2021-06-05 03:44:21,819 INFO L78 Accepts]: Start accepts. Automaton has 5341 states and 25150 transitions. Word has length 29 [2021-06-05 03:44:21,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:21,819 INFO L482 AbstractCegarLoop]: Abstraction has 5341 states and 25150 transitions. [2021-06-05 03:44:21,819 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:21,819 INFO L276 IsEmpty]: Start isEmpty. Operand 5341 states and 25150 transitions. [2021-06-05 03:44:21,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:21,828 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:21,828 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:21,828 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable657 [2021-06-05 03:44:21,828 INFO L430 AbstractCegarLoop]: === Iteration 659 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:21,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:21,828 INFO L82 PathProgramCache]: Analyzing trace with hash -1333642745, now seen corresponding path program 654 times [2021-06-05 03:44:21,828 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:21,828 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527820195] [2021-06-05 03:44:21,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:21,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:21,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:21,938 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:21,938 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527820195] [2021-06-05 03:44:21,938 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527820195] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:21,938 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:21,938 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:21,938 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433722949] [2021-06-05 03:44:21,939 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:21,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:21,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:21,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:21,939 INFO L87 Difference]: Start difference. First operand 5341 states and 25150 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:22,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:22,072 INFO L93 Difference]: Finished difference Result 12331 states and 55038 transitions. [2021-06-05 03:44:22,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:22,072 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:22,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:22,100 INFO L225 Difference]: With dead ends: 12331 [2021-06-05 03:44:22,101 INFO L226 Difference]: Without dead ends: 11691 [2021-06-05 03:44:22,101 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 134.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:22,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11691 states. [2021-06-05 03:44:22,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11691 to 5176. [2021-06-05 03:44:22,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5176 states, 5175 states have (on average 4.742608695652174) internal successors, (24543), 5175 states have internal predecessors, (24543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:22,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5176 states to 5176 states and 24543 transitions. [2021-06-05 03:44:22,384 INFO L78 Accepts]: Start accepts. Automaton has 5176 states and 24543 transitions. Word has length 29 [2021-06-05 03:44:22,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:22,384 INFO L482 AbstractCegarLoop]: Abstraction has 5176 states and 24543 transitions. [2021-06-05 03:44:22,384 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:22,384 INFO L276 IsEmpty]: Start isEmpty. Operand 5176 states and 24543 transitions. [2021-06-05 03:44:22,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:22,392 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:22,392 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:22,393 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable658 [2021-06-05 03:44:22,393 INFO L430 AbstractCegarLoop]: === Iteration 660 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:22,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:22,393 INFO L82 PathProgramCache]: Analyzing trace with hash 759508517, now seen corresponding path program 655 times [2021-06-05 03:44:22,393 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:22,393 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880279474] [2021-06-05 03:44:22,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:22,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:22,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:22,502 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:22,502 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880279474] [2021-06-05 03:44:22,502 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880279474] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:22,502 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:22,502 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:22,502 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052553864] [2021-06-05 03:44:22,502 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:22,502 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:22,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:22,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:22,502 INFO L87 Difference]: Start difference. First operand 5176 states and 24543 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:22,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:22,607 INFO L93 Difference]: Finished difference Result 12505 states and 55906 transitions. [2021-06-05 03:44:22,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:22,607 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:22,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:22,637 INFO L225 Difference]: With dead ends: 12505 [2021-06-05 03:44:22,637 INFO L226 Difference]: Without dead ends: 11963 [2021-06-05 03:44:22,637 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 115.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:22,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11963 states. [2021-06-05 03:44:22,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11963 to 5389. [2021-06-05 03:44:22,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5389 states, 5388 states have (on average 4.715478841870824) internal successors, (25407), 5388 states have internal predecessors, (25407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:22,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5389 states to 5389 states and 25407 transitions. [2021-06-05 03:44:22,877 INFO L78 Accepts]: Start accepts. Automaton has 5389 states and 25407 transitions. Word has length 29 [2021-06-05 03:44:22,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:22,877 INFO L482 AbstractCegarLoop]: Abstraction has 5389 states and 25407 transitions. [2021-06-05 03:44:22,878 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:22,878 INFO L276 IsEmpty]: Start isEmpty. Operand 5389 states and 25407 transitions. [2021-06-05 03:44:22,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:22,887 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:22,887 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:22,887 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable659 [2021-06-05 03:44:22,887 INFO L430 AbstractCegarLoop]: === Iteration 661 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:22,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:22,887 INFO L82 PathProgramCache]: Analyzing trace with hash 1840571143, now seen corresponding path program 656 times [2021-06-05 03:44:22,887 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:22,887 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838343090] [2021-06-05 03:44:22,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:22,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:22,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:22,996 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:22,996 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838343090] [2021-06-05 03:44:22,996 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838343090] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:22,996 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:22,996 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:22,996 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671279731] [2021-06-05 03:44:22,996 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:22,996 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:22,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:22,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:22,996 INFO L87 Difference]: Start difference. First operand 5389 states and 25407 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:23,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:23,117 INFO L93 Difference]: Finished difference Result 12440 states and 55537 transitions. [2021-06-05 03:44:23,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:23,117 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:23,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:23,146 INFO L225 Difference]: With dead ends: 12440 [2021-06-05 03:44:23,146 INFO L226 Difference]: Without dead ends: 11820 [2021-06-05 03:44:23,146 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 132.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:23,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11820 states. [2021-06-05 03:44:23,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11820 to 5246. [2021-06-05 03:44:23,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5246 states, 5245 states have (on average 4.7317445185891325) internal successors, (24818), 5245 states have internal predecessors, (24818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:23,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5246 states to 5246 states and 24818 transitions. [2021-06-05 03:44:23,384 INFO L78 Accepts]: Start accepts. Automaton has 5246 states and 24818 transitions. Word has length 29 [2021-06-05 03:44:23,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:23,384 INFO L482 AbstractCegarLoop]: Abstraction has 5246 states and 24818 transitions. [2021-06-05 03:44:23,384 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:23,384 INFO L276 IsEmpty]: Start isEmpty. Operand 5246 states and 24818 transitions. [2021-06-05 03:44:23,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:23,392 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:23,393 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:23,393 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable660 [2021-06-05 03:44:23,393 INFO L430 AbstractCegarLoop]: === Iteration 662 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:23,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:23,393 INFO L82 PathProgramCache]: Analyzing trace with hash -1590137401, now seen corresponding path program 657 times [2021-06-05 03:44:23,393 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:23,393 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029130383] [2021-06-05 03:44:23,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:23,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:23,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:23,513 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:23,513 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029130383] [2021-06-05 03:44:23,513 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029130383] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:23,513 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:23,513 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:23,513 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838977354] [2021-06-05 03:44:23,513 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:23,514 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:23,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:23,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:23,514 INFO L87 Difference]: Start difference. First operand 5246 states and 24818 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:23,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:23,618 INFO L93 Difference]: Finished difference Result 12464 states and 55697 transitions. [2021-06-05 03:44:23,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:23,619 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:23,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:23,648 INFO L225 Difference]: With dead ends: 12464 [2021-06-05 03:44:23,648 INFO L226 Difference]: Without dead ends: 11922 [2021-06-05 03:44:23,648 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 127.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:23,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11922 states. [2021-06-05 03:44:23,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11922 to 5354. [2021-06-05 03:44:23,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5354 states, 5353 states have (on average 4.711003175789277) internal successors, (25218), 5353 states have internal predecessors, (25218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:23,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5354 states to 5354 states and 25218 transitions. [2021-06-05 03:44:23,884 INFO L78 Accepts]: Start accepts. Automaton has 5354 states and 25218 transitions. Word has length 29 [2021-06-05 03:44:23,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:23,884 INFO L482 AbstractCegarLoop]: Abstraction has 5354 states and 25218 transitions. [2021-06-05 03:44:23,884 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:23,884 INFO L276 IsEmpty]: Start isEmpty. Operand 5354 states and 25218 transitions. [2021-06-05 03:44:23,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:23,893 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:23,893 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:23,893 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable661 [2021-06-05 03:44:23,893 INFO L430 AbstractCegarLoop]: === Iteration 663 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:23,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:23,893 INFO L82 PathProgramCache]: Analyzing trace with hash 197244359, now seen corresponding path program 658 times [2021-06-05 03:44:23,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:23,893 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256642924] [2021-06-05 03:44:23,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:23,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:24,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:24,017 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:24,017 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256642924] [2021-06-05 03:44:24,017 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256642924] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:24,017 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:24,017 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:24,017 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190867833] [2021-06-05 03:44:24,017 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:24,017 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:24,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:24,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:24,017 INFO L87 Difference]: Start difference. First operand 5354 states and 25218 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:24,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:24,135 INFO L93 Difference]: Finished difference Result 12393 states and 55314 transitions. [2021-06-05 03:44:24,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:24,136 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:24,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:24,164 INFO L225 Difference]: With dead ends: 12393 [2021-06-05 03:44:24,165 INFO L226 Difference]: Without dead ends: 11814 [2021-06-05 03:44:24,165 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 146.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:24,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11814 states. [2021-06-05 03:44:24,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11814 to 5246. [2021-06-05 03:44:24,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5246 states, 5245 states have (on average 4.721448999046711) internal successors, (24764), 5245 states have internal predecessors, (24764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:24,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5246 states to 5246 states and 24764 transitions. [2021-06-05 03:44:24,400 INFO L78 Accepts]: Start accepts. Automaton has 5246 states and 24764 transitions. Word has length 29 [2021-06-05 03:44:24,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:24,400 INFO L482 AbstractCegarLoop]: Abstraction has 5246 states and 24764 transitions. [2021-06-05 03:44:24,400 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:24,400 INFO L276 IsEmpty]: Start isEmpty. Operand 5246 states and 24764 transitions. [2021-06-05 03:44:24,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:24,409 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:24,409 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:24,409 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable662 [2021-06-05 03:44:24,409 INFO L430 AbstractCegarLoop]: === Iteration 664 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:24,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:24,409 INFO L82 PathProgramCache]: Analyzing trace with hash -1202132439, now seen corresponding path program 659 times [2021-06-05 03:44:24,409 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:24,409 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326610428] [2021-06-05 03:44:24,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:24,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:24,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:24,517 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:24,517 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326610428] [2021-06-05 03:44:24,517 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326610428] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:24,517 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:24,517 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:24,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382890711] [2021-06-05 03:44:24,517 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:24,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:24,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:24,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:24,517 INFO L87 Difference]: Start difference. First operand 5246 states and 24764 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:24,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:24,634 INFO L93 Difference]: Finished difference Result 12302 states and 54983 transitions. [2021-06-05 03:44:24,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:24,634 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:24,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:24,663 INFO L225 Difference]: With dead ends: 12302 [2021-06-05 03:44:24,664 INFO L226 Difference]: Without dead ends: 11825 [2021-06-05 03:44:24,664 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 131.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:24,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11825 states. [2021-06-05 03:44:24,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11825 to 5322. [2021-06-05 03:44:24,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5322 states, 5321 states have (on average 4.7081375681262925) internal successors, (25052), 5321 states have internal predecessors, (25052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:24,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5322 states to 5322 states and 25052 transitions. [2021-06-05 03:44:24,898 INFO L78 Accepts]: Start accepts. Automaton has 5322 states and 25052 transitions. Word has length 29 [2021-06-05 03:44:24,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:24,899 INFO L482 AbstractCegarLoop]: Abstraction has 5322 states and 25052 transitions. [2021-06-05 03:44:24,899 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:24,899 INFO L276 IsEmpty]: Start isEmpty. Operand 5322 states and 25052 transitions. [2021-06-05 03:44:24,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:24,907 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:24,907 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:24,907 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable663 [2021-06-05 03:44:24,907 INFO L430 AbstractCegarLoop]: === Iteration 665 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:24,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:24,908 INFO L82 PathProgramCache]: Analyzing trace with hash -292527481, now seen corresponding path program 660 times [2021-06-05 03:44:24,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:24,908 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98511775] [2021-06-05 03:44:24,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:24,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:25,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:25,016 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:25,016 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98511775] [2021-06-05 03:44:25,016 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98511775] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:25,016 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:25,016 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:25,017 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130573947] [2021-06-05 03:44:25,017 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:25,017 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:25,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:25,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:25,017 INFO L87 Difference]: Start difference. First operand 5322 states and 25052 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:25,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:25,142 INFO L93 Difference]: Finished difference Result 12296 states and 54890 transitions. [2021-06-05 03:44:25,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:25,143 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:25,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:25,172 INFO L225 Difference]: With dead ends: 12296 [2021-06-05 03:44:25,172 INFO L226 Difference]: Without dead ends: 11679 [2021-06-05 03:44:25,172 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 133.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:25,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11679 states. [2021-06-05 03:44:25,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11679 to 5176. [2021-06-05 03:44:25,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5176 states, 5175 states have (on average 4.735845410628019) internal successors, (24508), 5175 states have internal predecessors, (24508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:25,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5176 states to 5176 states and 24508 transitions. [2021-06-05 03:44:25,405 INFO L78 Accepts]: Start accepts. Automaton has 5176 states and 24508 transitions. Word has length 29 [2021-06-05 03:44:25,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:25,406 INFO L482 AbstractCegarLoop]: Abstraction has 5176 states and 24508 transitions. [2021-06-05 03:44:25,406 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:25,406 INFO L276 IsEmpty]: Start isEmpty. Operand 5176 states and 24508 transitions. [2021-06-05 03:44:25,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:25,414 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:25,414 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:25,414 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable664 [2021-06-05 03:44:25,414 INFO L430 AbstractCegarLoop]: === Iteration 666 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:25,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:25,415 INFO L82 PathProgramCache]: Analyzing trace with hash 1485497799, now seen corresponding path program 661 times [2021-06-05 03:44:25,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:25,415 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118070432] [2021-06-05 03:44:25,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:25,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:25,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:25,523 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:25,523 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118070432] [2021-06-05 03:44:25,523 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118070432] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:25,523 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:25,523 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:25,523 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113083963] [2021-06-05 03:44:25,523 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:25,523 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:25,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:25,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:25,524 INFO L87 Difference]: Start difference. First operand 5176 states and 24508 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:25,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:25,632 INFO L93 Difference]: Finished difference Result 12419 states and 55567 transitions. [2021-06-05 03:44:25,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:25,632 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:25,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:25,661 INFO L225 Difference]: With dead ends: 12419 [2021-06-05 03:44:25,662 INFO L226 Difference]: Without dead ends: 11877 [2021-06-05 03:44:25,662 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 115.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:25,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11877 states. [2021-06-05 03:44:25,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11877 to 5340. [2021-06-05 03:44:25,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5340 states, 5339 states have (on average 4.7188612099644125) internal successors, (25194), 5339 states have internal predecessors, (25194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:25,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5340 states to 5340 states and 25194 transitions. [2021-06-05 03:44:25,898 INFO L78 Accepts]: Start accepts. Automaton has 5340 states and 25194 transitions. Word has length 29 [2021-06-05 03:44:25,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:25,898 INFO L482 AbstractCegarLoop]: Abstraction has 5340 states and 25194 transitions. [2021-06-05 03:44:25,898 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:25,899 INFO L276 IsEmpty]: Start isEmpty. Operand 5340 states and 25194 transitions. [2021-06-05 03:44:25,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:25,907 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:25,907 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:25,907 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable665 [2021-06-05 03:44:25,907 INFO L430 AbstractCegarLoop]: === Iteration 667 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:25,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:25,908 INFO L82 PathProgramCache]: Analyzing trace with hash 1535065543, now seen corresponding path program 662 times [2021-06-05 03:44:25,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:25,908 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586327154] [2021-06-05 03:44:25,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:25,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:26,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:26,016 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:26,016 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586327154] [2021-06-05 03:44:26,016 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586327154] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:26,016 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:26,016 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:26,017 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454384780] [2021-06-05 03:44:26,017 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:26,017 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:26,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:26,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:26,017 INFO L87 Difference]: Start difference. First operand 5340 states and 25194 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:26,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:26,135 INFO L93 Difference]: Finished difference Result 12352 states and 55194 transitions. [2021-06-05 03:44:26,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:26,136 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:26,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:26,166 INFO L225 Difference]: With dead ends: 12352 [2021-06-05 03:44:26,167 INFO L226 Difference]: Without dead ends: 11767 [2021-06-05 03:44:26,167 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 132.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:26,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11767 states. [2021-06-05 03:44:26,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11767 to 5230. [2021-06-05 03:44:26,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5230 states, 5229 states have (on average 4.730349971313827) internal successors, (24735), 5229 states have internal predecessors, (24735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:26,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5230 states to 5230 states and 24735 transitions. [2021-06-05 03:44:26,408 INFO L78 Accepts]: Start accepts. Automaton has 5230 states and 24735 transitions. Word has length 29 [2021-06-05 03:44:26,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:26,408 INFO L482 AbstractCegarLoop]: Abstraction has 5230 states and 24735 transitions. [2021-06-05 03:44:26,408 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:26,408 INFO L276 IsEmpty]: Start isEmpty. Operand 5230 states and 24735 transitions. [2021-06-05 03:44:26,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:26,417 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:26,417 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:26,417 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable666 [2021-06-05 03:44:26,417 INFO L430 AbstractCegarLoop]: === Iteration 668 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:26,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:26,418 INFO L82 PathProgramCache]: Analyzing trace with hash -537563739, now seen corresponding path program 663 times [2021-06-05 03:44:26,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:26,418 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011125089] [2021-06-05 03:44:26,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:26,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:26,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:26,539 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:26,539 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011125089] [2021-06-05 03:44:26,539 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011125089] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:26,539 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:26,539 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:26,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670721270] [2021-06-05 03:44:26,539 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:26,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:26,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:26,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:26,539 INFO L87 Difference]: Start difference. First operand 5230 states and 24735 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:26,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:26,649 INFO L93 Difference]: Finished difference Result 12413 states and 55494 transitions. [2021-06-05 03:44:26,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:26,650 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:26,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:26,679 INFO L225 Difference]: With dead ends: 12413 [2021-06-05 03:44:26,679 INFO L226 Difference]: Without dead ends: 11871 [2021-06-05 03:44:26,679 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 127.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:26,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11871 states. [2021-06-05 03:44:26,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11871 to 5338. [2021-06-05 03:44:26,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5338 states, 5337 states have (on average 4.709574667416152) internal successors, (25135), 5337 states have internal predecessors, (25135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:26,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5338 states to 5338 states and 25135 transitions. [2021-06-05 03:44:26,916 INFO L78 Accepts]: Start accepts. Automaton has 5338 states and 25135 transitions. Word has length 29 [2021-06-05 03:44:26,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:26,916 INFO L482 AbstractCegarLoop]: Abstraction has 5338 states and 25135 transitions. [2021-06-05 03:44:26,916 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:26,917 INFO L276 IsEmpty]: Start isEmpty. Operand 5338 states and 25135 transitions. [2021-06-05 03:44:26,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:26,925 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:26,925 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:26,925 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable667 [2021-06-05 03:44:26,926 INFO L430 AbstractCegarLoop]: === Iteration 669 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:26,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:26,926 INFO L82 PathProgramCache]: Analyzing trace with hash -1725096505, now seen corresponding path program 664 times [2021-06-05 03:44:26,926 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:26,926 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814284125] [2021-06-05 03:44:26,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:26,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:27,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:27,045 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:27,045 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814284125] [2021-06-05 03:44:27,045 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814284125] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:27,045 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:27,045 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:27,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540957033] [2021-06-05 03:44:27,046 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:27,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:27,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:27,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:27,046 INFO L87 Difference]: Start difference. First operand 5338 states and 25135 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:27,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:27,169 INFO L93 Difference]: Finished difference Result 12342 states and 55111 transitions. [2021-06-05 03:44:27,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:27,169 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:27,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:27,198 INFO L225 Difference]: With dead ends: 12342 [2021-06-05 03:44:27,198 INFO L226 Difference]: Without dead ends: 11763 [2021-06-05 03:44:27,198 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 142.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:27,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11763 states. [2021-06-05 03:44:27,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11763 to 5230. [2021-06-05 03:44:27,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5230 states, 5229 states have (on average 4.720022948938611) internal successors, (24681), 5229 states have internal predecessors, (24681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:27,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5230 states to 5230 states and 24681 transitions. [2021-06-05 03:44:27,437 INFO L78 Accepts]: Start accepts. Automaton has 5230 states and 24681 transitions. Word has length 29 [2021-06-05 03:44:27,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:27,437 INFO L482 AbstractCegarLoop]: Abstraction has 5230 states and 24681 transitions. [2021-06-05 03:44:27,437 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:27,437 INFO L276 IsEmpty]: Start isEmpty. Operand 5230 states and 24681 transitions. [2021-06-05 03:44:27,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:27,446 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:27,446 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:27,446 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable668 [2021-06-05 03:44:27,446 INFO L430 AbstractCegarLoop]: === Iteration 670 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:27,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:27,446 INFO L82 PathProgramCache]: Analyzing trace with hash 1222018503, now seen corresponding path program 665 times [2021-06-05 03:44:27,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:27,446 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131055274] [2021-06-05 03:44:27,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:27,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:27,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:27,555 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:27,555 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131055274] [2021-06-05 03:44:27,555 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131055274] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:27,555 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:27,555 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:27,555 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121854443] [2021-06-05 03:44:27,555 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:27,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:27,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:27,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:27,556 INFO L87 Difference]: Start difference. First operand 5230 states and 24681 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:27,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:27,671 INFO L93 Difference]: Finished difference Result 12247 states and 54770 transitions. [2021-06-05 03:44:27,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:27,671 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:27,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:27,701 INFO L225 Difference]: With dead ends: 12247 [2021-06-05 03:44:27,701 INFO L226 Difference]: Without dead ends: 11772 [2021-06-05 03:44:27,701 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 133.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:27,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11772 states. [2021-06-05 03:44:27,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11772 to 5306. [2021-06-05 03:44:27,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5306 states, 5305 states have (on average 4.706691800188501) internal successors, (24969), 5305 states have internal predecessors, (24969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:27,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5306 states to 5306 states and 24969 transitions. [2021-06-05 03:44:27,936 INFO L78 Accepts]: Start accepts. Automaton has 5306 states and 24969 transitions. Word has length 29 [2021-06-05 03:44:27,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:27,936 INFO L482 AbstractCegarLoop]: Abstraction has 5306 states and 24969 transitions. [2021-06-05 03:44:27,936 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:27,936 INFO L276 IsEmpty]: Start isEmpty. Operand 5306 states and 24969 transitions. [2021-06-05 03:44:27,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:27,945 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:27,945 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:27,945 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable669 [2021-06-05 03:44:27,945 INFO L430 AbstractCegarLoop]: === Iteration 671 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:27,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:27,945 INFO L82 PathProgramCache]: Analyzing trace with hash 375221541, now seen corresponding path program 666 times [2021-06-05 03:44:27,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:27,945 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639025965] [2021-06-05 03:44:27,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:27,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:28,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:28,059 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:28,059 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639025965] [2021-06-05 03:44:28,059 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639025965] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:28,059 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:28,059 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:28,059 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455381230] [2021-06-05 03:44:28,059 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:28,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:28,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:28,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:28,059 INFO L87 Difference]: Start difference. First operand 5306 states and 24969 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:28,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:28,191 INFO L93 Difference]: Finished difference Result 12243 states and 54682 transitions. [2021-06-05 03:44:28,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:28,191 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:28,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:28,219 INFO L225 Difference]: With dead ends: 12243 [2021-06-05 03:44:28,220 INFO L226 Difference]: Without dead ends: 11642 [2021-06-05 03:44:28,220 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 133.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:28,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11642 states. [2021-06-05 03:44:28,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11642 to 5176. [2021-06-05 03:44:28,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5176 states, 5175 states have (on average 4.730628019323672) internal successors, (24481), 5175 states have internal predecessors, (24481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:28,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5176 states to 5176 states and 24481 transitions. [2021-06-05 03:44:28,456 INFO L78 Accepts]: Start accepts. Automaton has 5176 states and 24481 transitions. Word has length 29 [2021-06-05 03:44:28,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:28,456 INFO L482 AbstractCegarLoop]: Abstraction has 5176 states and 24481 transitions. [2021-06-05 03:44:28,456 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:28,456 INFO L276 IsEmpty]: Start isEmpty. Operand 5176 states and 24481 transitions. [2021-06-05 03:44:28,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:28,465 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:28,465 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:28,465 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable670 [2021-06-05 03:44:28,465 INFO L430 AbstractCegarLoop]: === Iteration 672 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:28,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:28,465 INFO L82 PathProgramCache]: Analyzing trace with hash 1565018537, now seen corresponding path program 667 times [2021-06-05 03:44:28,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:28,465 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969624103] [2021-06-05 03:44:28,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:28,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:28,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:28,581 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:28,581 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969624103] [2021-06-05 03:44:28,581 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969624103] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:28,581 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:28,581 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:28,581 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36582265] [2021-06-05 03:44:28,582 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:28,582 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:28,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:28,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:28,582 INFO L87 Difference]: Start difference. First operand 5176 states and 24481 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:28,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:28,727 INFO L93 Difference]: Finished difference Result 12112 states and 54254 transitions. [2021-06-05 03:44:28,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:28,727 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:28,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:28,756 INFO L225 Difference]: With dead ends: 12112 [2021-06-05 03:44:28,756 INFO L226 Difference]: Without dead ends: 11635 [2021-06-05 03:44:28,756 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 136.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:28,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11635 states. [2021-06-05 03:44:28,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11635 to 5292. [2021-06-05 03:44:28,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5292 states, 5291 states have (on average 4.72027972027972) internal successors, (24975), 5291 states have internal predecessors, (24975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:28,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5292 states to 5292 states and 24975 transitions. [2021-06-05 03:44:28,990 INFO L78 Accepts]: Start accepts. Automaton has 5292 states and 24975 transitions. Word has length 29 [2021-06-05 03:44:28,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:28,990 INFO L482 AbstractCegarLoop]: Abstraction has 5292 states and 24975 transitions. [2021-06-05 03:44:28,990 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:28,990 INFO L276 IsEmpty]: Start isEmpty. Operand 5292 states and 24975 transitions. [2021-06-05 03:44:28,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:28,999 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:28,999 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:28,999 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable671 [2021-06-05 03:44:28,999 INFO L430 AbstractCegarLoop]: === Iteration 673 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:28,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:28,999 INFO L82 PathProgramCache]: Analyzing trace with hash -551061113, now seen corresponding path program 668 times [2021-06-05 03:44:28,999 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:28,999 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742174465] [2021-06-05 03:44:28,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:29,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:29,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:29,108 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:29,108 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742174465] [2021-06-05 03:44:29,108 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742174465] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:29,108 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:29,108 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:29,108 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881235465] [2021-06-05 03:44:29,108 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:29,108 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:29,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:29,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:29,109 INFO L87 Difference]: Start difference. First operand 5292 states and 24975 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:29,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:29,238 INFO L93 Difference]: Finished difference Result 12110 states and 54171 transitions. [2021-06-05 03:44:29,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:29,239 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:29,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:29,267 INFO L225 Difference]: With dead ends: 12110 [2021-06-05 03:44:29,267 INFO L226 Difference]: Without dead ends: 11557 [2021-06-05 03:44:29,267 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 132.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:29,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11557 states. [2021-06-05 03:44:29,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11557 to 5214. [2021-06-05 03:44:29,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5214 states, 5213 states have (on average 4.727412238634184) internal successors, (24644), 5213 states have internal predecessors, (24644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:29,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5214 states to 5214 states and 24644 transitions. [2021-06-05 03:44:29,497 INFO L78 Accepts]: Start accepts. Automaton has 5214 states and 24644 transitions. Word has length 29 [2021-06-05 03:44:29,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:29,497 INFO L482 AbstractCegarLoop]: Abstraction has 5214 states and 24644 transitions. [2021-06-05 03:44:29,497 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:29,497 INFO L276 IsEmpty]: Start isEmpty. Operand 5214 states and 24644 transitions. [2021-06-05 03:44:29,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:29,506 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:29,506 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:29,506 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable672 [2021-06-05 03:44:29,506 INFO L430 AbstractCegarLoop]: === Iteration 674 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:29,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:29,506 INFO L82 PathProgramCache]: Analyzing trace with hash -458043001, now seen corresponding path program 669 times [2021-06-05 03:44:29,507 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:29,507 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913215947] [2021-06-05 03:44:29,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:29,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:29,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:29,619 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:29,619 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913215947] [2021-06-05 03:44:29,619 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913215947] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:29,619 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:29,619 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:29,619 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270137178] [2021-06-05 03:44:29,619 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:29,619 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:29,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:29,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:29,619 INFO L87 Difference]: Start difference. First operand 5214 states and 24644 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:29,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:29,731 INFO L93 Difference]: Finished difference Result 12106 states and 54197 transitions. [2021-06-05 03:44:29,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:29,731 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:29,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:29,759 INFO L225 Difference]: With dead ends: 12106 [2021-06-05 03:44:29,759 INFO L226 Difference]: Without dead ends: 11629 [2021-06-05 03:44:29,759 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 135.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:29,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11629 states. [2021-06-05 03:44:29,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11629 to 5290. [2021-06-05 03:44:29,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5290 states, 5289 states have (on average 4.713934581206277) internal successors, (24932), 5289 states have internal predecessors, (24932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:29,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5290 states to 5290 states and 24932 transitions. [2021-06-05 03:44:29,992 INFO L78 Accepts]: Start accepts. Automaton has 5290 states and 24932 transitions. Word has length 29 [2021-06-05 03:44:29,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:29,992 INFO L482 AbstractCegarLoop]: Abstraction has 5290 states and 24932 transitions. [2021-06-05 03:44:29,992 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:29,992 INFO L276 IsEmpty]: Start isEmpty. Operand 5290 states and 24932 transitions. [2021-06-05 03:44:30,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:30,000 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:30,000 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:30,001 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable673 [2021-06-05 03:44:30,001 INFO L430 AbstractCegarLoop]: === Iteration 675 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:30,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:30,001 INFO L82 PathProgramCache]: Analyzing trace with hash 1771614727, now seen corresponding path program 670 times [2021-06-05 03:44:30,001 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:30,001 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82822665] [2021-06-05 03:44:30,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:30,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:30,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:30,109 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:30,109 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82822665] [2021-06-05 03:44:30,109 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82822665] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:30,109 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:30,109 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:30,109 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549394586] [2021-06-05 03:44:30,109 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:30,109 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:30,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:30,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:30,110 INFO L87 Difference]: Start difference. First operand 5290 states and 24932 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:30,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:30,223 INFO L93 Difference]: Finished difference Result 12100 states and 54104 transitions. [2021-06-05 03:44:30,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:30,223 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:30,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:30,251 INFO L225 Difference]: With dead ends: 12100 [2021-06-05 03:44:30,251 INFO L226 Difference]: Without dead ends: 11553 [2021-06-05 03:44:30,251 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 132.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:30,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11553 states. [2021-06-05 03:44:30,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11553 to 5214. [2021-06-05 03:44:30,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5214 states, 5213 states have (on average 4.720122769998082) internal successors, (24606), 5213 states have internal predecessors, (24606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:30,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5214 states to 5214 states and 24606 transitions. [2021-06-05 03:44:30,481 INFO L78 Accepts]: Start accepts. Automaton has 5214 states and 24606 transitions. Word has length 29 [2021-06-05 03:44:30,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:30,481 INFO L482 AbstractCegarLoop]: Abstraction has 5214 states and 24606 transitions. [2021-06-05 03:44:30,481 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:30,481 INFO L276 IsEmpty]: Start isEmpty. Operand 5214 states and 24606 transitions. [2021-06-05 03:44:30,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:30,490 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:30,490 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:30,490 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable674 [2021-06-05 03:44:30,490 INFO L430 AbstractCegarLoop]: === Iteration 676 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:30,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:30,490 INFO L82 PathProgramCache]: Analyzing trace with hash 1700942437, now seen corresponding path program 671 times [2021-06-05 03:44:30,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:30,490 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374212264] [2021-06-05 03:44:30,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:30,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:30,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:30,602 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:30,602 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374212264] [2021-06-05 03:44:30,602 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374212264] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:30,602 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:30,602 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:30,603 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895575468] [2021-06-05 03:44:30,603 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:30,603 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:30,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:30,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:30,603 INFO L87 Difference]: Start difference. First operand 5214 states and 24606 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:30,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:30,720 INFO L93 Difference]: Finished difference Result 12102 states and 54149 transitions. [2021-06-05 03:44:30,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:30,720 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:30,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:30,748 INFO L225 Difference]: With dead ends: 12102 [2021-06-05 03:44:30,749 INFO L226 Difference]: Without dead ends: 11627 [2021-06-05 03:44:30,749 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 133.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:30,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11627 states. [2021-06-05 03:44:30,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11627 to 5290. [2021-06-05 03:44:30,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5290 states, 5289 states have (on average 4.706749858196257) internal successors, (24894), 5289 states have internal predecessors, (24894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:30,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5290 states to 5290 states and 24894 transitions. [2021-06-05 03:44:30,980 INFO L78 Accepts]: Start accepts. Automaton has 5290 states and 24894 transitions. Word has length 29 [2021-06-05 03:44:30,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:30,980 INFO L482 AbstractCegarLoop]: Abstraction has 5290 states and 24894 transitions. [2021-06-05 03:44:30,980 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:30,980 INFO L276 IsEmpty]: Start isEmpty. Operand 5290 states and 24894 transitions. [2021-06-05 03:44:30,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:30,989 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:30,989 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:30,989 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable675 [2021-06-05 03:44:30,989 INFO L430 AbstractCegarLoop]: === Iteration 677 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:30,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:30,989 INFO L82 PathProgramCache]: Analyzing trace with hash 1220040391, now seen corresponding path program 672 times [2021-06-05 03:44:30,989 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:30,989 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405002617] [2021-06-05 03:44:30,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:30,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:31,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:31,098 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:31,098 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405002617] [2021-06-05 03:44:31,098 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405002617] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:31,098 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:31,098 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:31,098 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770934570] [2021-06-05 03:44:31,098 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:31,098 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:31,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:31,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:31,098 INFO L87 Difference]: Start difference. First operand 5290 states and 24894 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:31,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:31,214 INFO L93 Difference]: Finished difference Result 12098 states and 54061 transitions. [2021-06-05 03:44:31,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:31,214 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:31,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:31,241 INFO L225 Difference]: With dead ends: 12098 [2021-06-05 03:44:31,241 INFO L226 Difference]: Without dead ends: 11462 [2021-06-05 03:44:31,242 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 132.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:31,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11462 states. [2021-06-05 03:44:31,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11462 to 5125. [2021-06-05 03:44:31,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5125 states, 5124 states have (on average 4.747462919594067) internal successors, (24326), 5124 states have internal predecessors, (24326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:31,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5125 states to 5125 states and 24326 transitions. [2021-06-05 03:44:31,534 INFO L78 Accepts]: Start accepts. Automaton has 5125 states and 24326 transitions. Word has length 29 [2021-06-05 03:44:31,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:31,534 INFO L482 AbstractCegarLoop]: Abstraction has 5125 states and 24326 transitions. [2021-06-05 03:44:31,534 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:31,534 INFO L276 IsEmpty]: Start isEmpty. Operand 5125 states and 24326 transitions. [2021-06-05 03:44:31,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:31,542 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:31,542 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:31,542 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable676 [2021-06-05 03:44:31,542 INFO L430 AbstractCegarLoop]: === Iteration 678 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:31,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:31,543 INFO L82 PathProgramCache]: Analyzing trace with hash -1588520663, now seen corresponding path program 673 times [2021-06-05 03:44:31,543 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:31,543 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400820950] [2021-06-05 03:44:31,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:31,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:31,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:31,671 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:31,671 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400820950] [2021-06-05 03:44:31,671 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400820950] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:31,671 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:31,671 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:31,671 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656177732] [2021-06-05 03:44:31,671 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:31,671 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:31,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:31,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:31,672 INFO L87 Difference]: Start difference. First operand 5125 states and 24326 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:31,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:31,769 INFO L93 Difference]: Finished difference Result 11898 states and 53248 transitions. [2021-06-05 03:44:31,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:31,769 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:31,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:31,796 INFO L225 Difference]: With dead ends: 11898 [2021-06-05 03:44:31,796 INFO L226 Difference]: Without dead ends: 11356 [2021-06-05 03:44:31,796 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 134.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:31,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11356 states. [2021-06-05 03:44:32,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11356 to 5265. [2021-06-05 03:44:32,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5265 states, 5264 states have (on average 4.7359422492401215) internal successors, (24930), 5264 states have internal predecessors, (24930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:32,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5265 states to 5265 states and 24930 transitions. [2021-06-05 03:44:32,030 INFO L78 Accepts]: Start accepts. Automaton has 5265 states and 24930 transitions. Word has length 29 [2021-06-05 03:44:32,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:32,030 INFO L482 AbstractCegarLoop]: Abstraction has 5265 states and 24930 transitions. [2021-06-05 03:44:32,030 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:32,030 INFO L276 IsEmpty]: Start isEmpty. Operand 5265 states and 24930 transitions. [2021-06-05 03:44:32,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:32,039 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:32,039 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:32,039 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable677 [2021-06-05 03:44:32,039 INFO L430 AbstractCegarLoop]: === Iteration 679 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:32,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:32,039 INFO L82 PathProgramCache]: Analyzing trace with hash 1018200361, now seen corresponding path program 674 times [2021-06-05 03:44:32,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:32,039 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468736508] [2021-06-05 03:44:32,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:32,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:32,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:32,168 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:32,168 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468736508] [2021-06-05 03:44:32,168 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468736508] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:32,168 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:32,168 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:32,168 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156279485] [2021-06-05 03:44:32,168 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:32,168 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:32,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:32,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:32,168 INFO L87 Difference]: Start difference. First operand 5265 states and 24930 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:32,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:32,266 INFO L93 Difference]: Finished difference Result 11771 states and 52641 transitions. [2021-06-05 03:44:32,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:32,267 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:32,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:32,294 INFO L225 Difference]: With dead ends: 11771 [2021-06-05 03:44:32,294 INFO L226 Difference]: Without dead ends: 11276 [2021-06-05 03:44:32,294 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 135.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:32,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11276 states. [2021-06-05 03:44:32,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11276 to 5185. [2021-06-05 03:44:32,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5185 states, 5184 states have (on average 4.745756172839506) internal successors, (24602), 5184 states have internal predecessors, (24602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:32,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5185 states to 5185 states and 24602 transitions. [2021-06-05 03:44:32,524 INFO L78 Accepts]: Start accepts. Automaton has 5185 states and 24602 transitions. Word has length 29 [2021-06-05 03:44:32,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:32,524 INFO L482 AbstractCegarLoop]: Abstraction has 5185 states and 24602 transitions. [2021-06-05 03:44:32,524 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:32,524 INFO L276 IsEmpty]: Start isEmpty. Operand 5185 states and 24602 transitions. [2021-06-05 03:44:32,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:32,532 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:32,532 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:32,532 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable678 [2021-06-05 03:44:32,533 INFO L430 AbstractCegarLoop]: === Iteration 680 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:32,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:32,533 INFO L82 PathProgramCache]: Analyzing trace with hash 683385095, now seen corresponding path program 675 times [2021-06-05 03:44:32,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:32,533 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518387555] [2021-06-05 03:44:32,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:32,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:32,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:32,654 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:32,654 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518387555] [2021-06-05 03:44:32,654 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518387555] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:32,654 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:32,654 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:32,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042933427] [2021-06-05 03:44:32,654 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:32,654 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:32,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:32,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:32,654 INFO L87 Difference]: Start difference. First operand 5185 states and 24602 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:32,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:32,751 INFO L93 Difference]: Finished difference Result 11988 states and 53619 transitions. [2021-06-05 03:44:32,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:32,751 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:32,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:32,779 INFO L225 Difference]: With dead ends: 11988 [2021-06-05 03:44:32,779 INFO L226 Difference]: Without dead ends: 11446 [2021-06-05 03:44:32,779 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 127.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:32,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11446 states. [2021-06-05 03:44:32,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11446 to 5295. [2021-06-05 03:44:32,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5295 states, 5294 states have (on average 4.723649414431431) internal successors, (25007), 5294 states have internal predecessors, (25007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:33,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5295 states to 5295 states and 25007 transitions. [2021-06-05 03:44:33,013 INFO L78 Accepts]: Start accepts. Automaton has 5295 states and 25007 transitions. Word has length 29 [2021-06-05 03:44:33,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:33,013 INFO L482 AbstractCegarLoop]: Abstraction has 5295 states and 25007 transitions. [2021-06-05 03:44:33,013 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:33,013 INFO L276 IsEmpty]: Start isEmpty. Operand 5295 states and 25007 transitions. [2021-06-05 03:44:33,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:33,021 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:33,021 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:33,022 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable679 [2021-06-05 03:44:33,022 INFO L430 AbstractCegarLoop]: === Iteration 681 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:33,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:33,022 INFO L82 PathProgramCache]: Analyzing trace with hash 2053005609, now seen corresponding path program 676 times [2021-06-05 03:44:33,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:33,022 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985920074] [2021-06-05 03:44:33,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:33,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:33,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:33,143 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:33,143 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985920074] [2021-06-05 03:44:33,144 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985920074] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:33,144 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:33,144 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:33,144 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757549038] [2021-06-05 03:44:33,144 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:33,144 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:33,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:33,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:33,144 INFO L87 Difference]: Start difference. First operand 5295 states and 25007 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:33,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:33,259 INFO L93 Difference]: Finished difference Result 11921 states and 53246 transitions. [2021-06-05 03:44:33,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:33,259 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:33,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:33,287 INFO L225 Difference]: With dead ends: 11921 [2021-06-05 03:44:33,287 INFO L226 Difference]: Without dead ends: 11336 [2021-06-05 03:44:33,287 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 145.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:33,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11336 states. [2021-06-05 03:44:33,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11336 to 5185. [2021-06-05 03:44:33,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5185 states, 5184 states have (on average 4.73804012345679) internal successors, (24562), 5184 states have internal predecessors, (24562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:33,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5185 states to 5185 states and 24562 transitions. [2021-06-05 03:44:33,518 INFO L78 Accepts]: Start accepts. Automaton has 5185 states and 24562 transitions. Word has length 29 [2021-06-05 03:44:33,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:33,518 INFO L482 AbstractCegarLoop]: Abstraction has 5185 states and 24562 transitions. [2021-06-05 03:44:33,518 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:33,518 INFO L276 IsEmpty]: Start isEmpty. Operand 5185 states and 24562 transitions. [2021-06-05 03:44:33,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:33,526 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:33,526 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:33,527 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable680 [2021-06-05 03:44:33,527 INFO L430 AbstractCegarLoop]: === Iteration 682 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:33,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:33,527 INFO L82 PathProgramCache]: Analyzing trace with hash 1408162089, now seen corresponding path program 677 times [2021-06-05 03:44:33,527 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:33,527 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147999577] [2021-06-05 03:44:33,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:33,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:33,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:33,660 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:33,660 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147999577] [2021-06-05 03:44:33,660 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147999577] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:33,660 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:33,660 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:33,660 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266591441] [2021-06-05 03:44:33,660 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:33,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:33,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:33,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:33,660 INFO L87 Difference]: Start difference. First operand 5185 states and 24562 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:33,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:33,763 INFO L93 Difference]: Finished difference Result 11672 states and 52234 transitions. [2021-06-05 03:44:33,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:33,763 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:33,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:33,791 INFO L225 Difference]: With dead ends: 11672 [2021-06-05 03:44:33,791 INFO L226 Difference]: Without dead ends: 11257 [2021-06-05 03:44:33,791 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 139.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:33,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11257 states. [2021-06-05 03:44:33,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11257 to 5233. [2021-06-05 03:44:34,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5233 states, 5232 states have (on average 4.728211009174312) internal successors, (24738), 5232 states have internal predecessors, (24738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:34,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5233 states to 5233 states and 24738 transitions. [2021-06-05 03:44:34,021 INFO L78 Accepts]: Start accepts. Automaton has 5233 states and 24738 transitions. Word has length 29 [2021-06-05 03:44:34,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:34,021 INFO L482 AbstractCegarLoop]: Abstraction has 5233 states and 24738 transitions. [2021-06-05 03:44:34,021 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:34,021 INFO L276 IsEmpty]: Start isEmpty. Operand 5233 states and 24738 transitions. [2021-06-05 03:44:34,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:34,029 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:34,029 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:34,030 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable681 [2021-06-05 03:44:34,030 INFO L430 AbstractCegarLoop]: === Iteration 683 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:34,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:34,030 INFO L82 PathProgramCache]: Analyzing trace with hash 561365127, now seen corresponding path program 678 times [2021-06-05 03:44:34,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:34,030 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095896687] [2021-06-05 03:44:34,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:34,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:34,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:34,162 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:34,162 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095896687] [2021-06-05 03:44:34,162 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095896687] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:34,162 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:34,162 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:34,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890375237] [2021-06-05 03:44:34,162 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:34,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:34,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:34,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:34,163 INFO L87 Difference]: Start difference. First operand 5233 states and 24738 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:34,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:34,283 INFO L93 Difference]: Finished difference Result 11732 states and 52450 transitions. [2021-06-05 03:44:34,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:34,283 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:34,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:34,311 INFO L225 Difference]: With dead ends: 11732 [2021-06-05 03:44:34,311 INFO L226 Difference]: Without dead ends: 11169 [2021-06-05 03:44:34,311 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 155.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:34,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11169 states. [2021-06-05 03:44:34,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11169 to 5145. [2021-06-05 03:44:34,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5145 states, 5144 states have (on average 4.746889580093312) internal successors, (24418), 5144 states have internal predecessors, (24418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:34,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5145 states to 5145 states and 24418 transitions. [2021-06-05 03:44:34,549 INFO L78 Accepts]: Start accepts. Automaton has 5145 states and 24418 transitions. Word has length 29 [2021-06-05 03:44:34,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:34,549 INFO L482 AbstractCegarLoop]: Abstraction has 5145 states and 24418 transitions. [2021-06-05 03:44:34,549 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:34,549 INFO L276 IsEmpty]: Start isEmpty. Operand 5145 states and 24418 transitions. [2021-06-05 03:44:34,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:34,558 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:34,558 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:34,558 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable682 [2021-06-05 03:44:34,558 INFO L430 AbstractCegarLoop]: === Iteration 684 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:34,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:34,559 INFO L82 PathProgramCache]: Analyzing trace with hash -130473593, now seen corresponding path program 679 times [2021-06-05 03:44:34,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:34,559 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152616497] [2021-06-05 03:44:34,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:34,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:34,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:34,691 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:34,691 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152616497] [2021-06-05 03:44:34,691 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152616497] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:34,691 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:34,691 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:34,691 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307429681] [2021-06-05 03:44:34,691 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:34,691 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:34,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:34,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:34,692 INFO L87 Difference]: Start difference. First operand 5145 states and 24418 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:34,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:34,794 INFO L93 Difference]: Finished difference Result 11892 states and 53209 transitions. [2021-06-05 03:44:34,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:34,795 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:34,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:34,823 INFO L225 Difference]: With dead ends: 11892 [2021-06-05 03:44:34,823 INFO L226 Difference]: Without dead ends: 11350 [2021-06-05 03:44:34,823 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 138.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:34,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11350 states. [2021-06-05 03:44:35,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11350 to 5265. [2021-06-05 03:44:35,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5265 states, 5264 states have (on average 4.732142857142857) internal successors, (24910), 5264 states have internal predecessors, (24910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:35,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5265 states to 5265 states and 24910 transitions. [2021-06-05 03:44:35,058 INFO L78 Accepts]: Start accepts. Automaton has 5265 states and 24910 transitions. Word has length 29 [2021-06-05 03:44:35,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:35,058 INFO L482 AbstractCegarLoop]: Abstraction has 5265 states and 24910 transitions. [2021-06-05 03:44:35,058 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:35,058 INFO L276 IsEmpty]: Start isEmpty. Operand 5265 states and 24910 transitions. [2021-06-05 03:44:35,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:35,067 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:35,067 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:35,067 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable683 [2021-06-05 03:44:35,067 INFO L430 AbstractCegarLoop]: === Iteration 685 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:35,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:35,067 INFO L82 PathProgramCache]: Analyzing trace with hash -1818719865, now seen corresponding path program 680 times [2021-06-05 03:44:35,067 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:35,067 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793585432] [2021-06-05 03:44:35,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:35,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:35,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:35,200 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:35,200 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793585432] [2021-06-05 03:44:35,200 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793585432] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:35,200 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:35,200 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:35,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440424821] [2021-06-05 03:44:35,200 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:35,200 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:35,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:35,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:35,201 INFO L87 Difference]: Start difference. First operand 5265 states and 24910 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:35,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:35,297 INFO L93 Difference]: Finished difference Result 11765 states and 52602 transitions. [2021-06-05 03:44:35,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:35,298 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:35,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:35,326 INFO L225 Difference]: With dead ends: 11765 [2021-06-05 03:44:35,327 INFO L226 Difference]: Without dead ends: 11270 [2021-06-05 03:44:35,327 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 139.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:35,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11270 states. [2021-06-05 03:44:35,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11270 to 5185. [2021-06-05 03:44:35,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5185 states, 5184 states have (on average 4.741898148148148) internal successors, (24582), 5184 states have internal predecessors, (24582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:35,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5185 states to 5185 states and 24582 transitions. [2021-06-05 03:44:35,564 INFO L78 Accepts]: Start accepts. Automaton has 5185 states and 24582 transitions. Word has length 29 [2021-06-05 03:44:35,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:35,564 INFO L482 AbstractCegarLoop]: Abstraction has 5185 states and 24582 transitions. [2021-06-05 03:44:35,564 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:35,564 INFO L276 IsEmpty]: Start isEmpty. Operand 5185 states and 24582 transitions. [2021-06-05 03:44:35,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:35,572 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:35,572 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:35,572 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable684 [2021-06-05 03:44:35,573 INFO L430 AbstractCegarLoop]: === Iteration 686 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:35,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:35,573 INFO L82 PathProgramCache]: Analyzing trace with hash -608126585, now seen corresponding path program 681 times [2021-06-05 03:44:35,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:35,573 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077689801] [2021-06-05 03:44:35,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:35,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:35,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:35,710 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:35,710 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077689801] [2021-06-05 03:44:35,710 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077689801] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:35,710 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:35,710 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:35,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787088784] [2021-06-05 03:44:35,710 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:35,710 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:35,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:35,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:35,710 INFO L87 Difference]: Start difference. First operand 5185 states and 24582 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:35,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:35,815 INFO L93 Difference]: Finished difference Result 11976 states and 53561 transitions. [2021-06-05 03:44:35,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:35,815 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:35,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:35,843 INFO L225 Difference]: With dead ends: 11976 [2021-06-05 03:44:35,843 INFO L226 Difference]: Without dead ends: 11434 [2021-06-05 03:44:35,843 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 143.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:35,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11434 states. [2021-06-05 03:44:36,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11434 to 5293. [2021-06-05 03:44:36,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5293 states, 5292 states have (on average 4.720710506424792) internal successors, (24982), 5292 states have internal predecessors, (24982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:36,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5293 states to 5293 states and 24982 transitions. [2021-06-05 03:44:36,074 INFO L78 Accepts]: Start accepts. Automaton has 5293 states and 24982 transitions. Word has length 29 [2021-06-05 03:44:36,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:36,074 INFO L482 AbstractCegarLoop]: Abstraction has 5293 states and 24982 transitions. [2021-06-05 03:44:36,074 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:36,074 INFO L276 IsEmpty]: Start isEmpty. Operand 5293 states and 24982 transitions. [2021-06-05 03:44:36,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:36,083 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:36,083 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:36,083 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable685 [2021-06-05 03:44:36,083 INFO L430 AbstractCegarLoop]: === Iteration 687 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:36,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:36,083 INFO L82 PathProgramCache]: Analyzing trace with hash 1806250281, now seen corresponding path program 682 times [2021-06-05 03:44:36,083 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:36,083 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618327785] [2021-06-05 03:44:36,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:36,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:36,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:36,220 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:36,220 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618327785] [2021-06-05 03:44:36,220 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618327785] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:36,220 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:36,220 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:36,220 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614624087] [2021-06-05 03:44:36,221 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:36,221 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:36,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:36,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:36,221 INFO L87 Difference]: Start difference. First operand 5293 states and 24982 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:36,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:36,343 INFO L93 Difference]: Finished difference Result 11905 states and 53178 transitions. [2021-06-05 03:44:36,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:36,343 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:36,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:36,372 INFO L225 Difference]: With dead ends: 11905 [2021-06-05 03:44:36,373 INFO L226 Difference]: Without dead ends: 11326 [2021-06-05 03:44:36,373 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 159.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:36,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11326 states. [2021-06-05 03:44:36,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11326 to 5185. [2021-06-05 03:44:36,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5185 states, 5184 states have (on average 4.734182098765432) internal successors, (24542), 5184 states have internal predecessors, (24542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:36,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5185 states to 5185 states and 24542 transitions. [2021-06-05 03:44:36,604 INFO L78 Accepts]: Start accepts. Automaton has 5185 states and 24542 transitions. Word has length 29 [2021-06-05 03:44:36,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:36,604 INFO L482 AbstractCegarLoop]: Abstraction has 5185 states and 24542 transitions. [2021-06-05 03:44:36,604 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:36,604 INFO L276 IsEmpty]: Start isEmpty. Operand 5185 states and 24542 transitions. [2021-06-05 03:44:36,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:36,612 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:36,612 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:36,613 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable686 [2021-06-05 03:44:36,613 INFO L430 AbstractCegarLoop]: === Iteration 688 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:36,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:36,613 INFO L82 PathProgramCache]: Analyzing trace with hash -576407255, now seen corresponding path program 683 times [2021-06-05 03:44:36,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:36,613 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211418247] [2021-06-05 03:44:36,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:36,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:36,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:36,749 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:36,749 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211418247] [2021-06-05 03:44:36,749 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211418247] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:36,749 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:36,749 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:36,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195478797] [2021-06-05 03:44:36,749 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:36,749 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:36,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:36,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:36,749 INFO L87 Difference]: Start difference. First operand 5185 states and 24542 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:36,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:36,846 INFO L93 Difference]: Finished difference Result 11662 states and 52183 transitions. [2021-06-05 03:44:36,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:36,846 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:36,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:36,874 INFO L225 Difference]: With dead ends: 11662 [2021-06-05 03:44:36,874 INFO L226 Difference]: Without dead ends: 11247 [2021-06-05 03:44:36,874 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 142.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:36,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11247 states. [2021-06-05 03:44:37,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11247 to 5233. [2021-06-05 03:44:37,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5233 states, 5232 states have (on average 4.724388379204893) internal successors, (24718), 5232 states have internal predecessors, (24718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:37,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5233 states to 5233 states and 24718 transitions. [2021-06-05 03:44:37,106 INFO L78 Accepts]: Start accepts. Automaton has 5233 states and 24718 transitions. Word has length 29 [2021-06-05 03:44:37,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:37,106 INFO L482 AbstractCegarLoop]: Abstraction has 5233 states and 24718 transitions. [2021-06-05 03:44:37,106 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:37,106 INFO L276 IsEmpty]: Start isEmpty. Operand 5233 states and 24718 transitions. [2021-06-05 03:44:37,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:37,115 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:37,115 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:37,115 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable687 [2021-06-05 03:44:37,115 INFO L430 AbstractCegarLoop]: === Iteration 689 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:37,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:37,115 INFO L82 PathProgramCache]: Analyzing trace with hash 1602480391, now seen corresponding path program 684 times [2021-06-05 03:44:37,115 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:37,115 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898296524] [2021-06-05 03:44:37,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:37,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:37,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:37,251 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:37,251 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898296524] [2021-06-05 03:44:37,251 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898296524] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:37,251 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:37,251 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:37,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083285895] [2021-06-05 03:44:37,252 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:37,252 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:37,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:37,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:37,252 INFO L87 Difference]: Start difference. First operand 5233 states and 24718 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:37,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:37,424 INFO L93 Difference]: Finished difference Result 11718 states and 52387 transitions. [2021-06-05 03:44:37,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:37,424 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:37,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:37,455 INFO L225 Difference]: With dead ends: 11718 [2021-06-05 03:44:37,455 INFO L226 Difference]: Without dead ends: 11159 [2021-06-05 03:44:37,455 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 171.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:37,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11159 states. [2021-06-05 03:44:37,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11159 to 5145. [2021-06-05 03:44:37,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5145 states, 5144 states have (on average 4.743001555209953) internal successors, (24398), 5144 states have internal predecessors, (24398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:37,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5145 states to 5145 states and 24398 transitions. [2021-06-05 03:44:37,688 INFO L78 Accepts]: Start accepts. Automaton has 5145 states and 24398 transitions. Word has length 29 [2021-06-05 03:44:37,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:37,689 INFO L482 AbstractCegarLoop]: Abstraction has 5145 states and 24398 transitions. [2021-06-05 03:44:37,689 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:37,689 INFO L276 IsEmpty]: Start isEmpty. Operand 5145 states and 24398 transitions. [2021-06-05 03:44:37,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:37,698 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:37,698 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:37,698 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable688 [2021-06-05 03:44:37,698 INFO L430 AbstractCegarLoop]: === Iteration 690 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:37,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:37,698 INFO L82 PathProgramCache]: Analyzing trace with hash 1168355813, now seen corresponding path program 685 times [2021-06-05 03:44:37,698 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:37,698 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519210058] [2021-06-05 03:44:37,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:37,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:37,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:37,814 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:37,814 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519210058] [2021-06-05 03:44:37,814 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519210058] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:37,814 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:37,814 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:37,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775604475] [2021-06-05 03:44:37,814 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:37,814 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:37,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:37,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:37,815 INFO L87 Difference]: Start difference. First operand 5145 states and 24398 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:37,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:37,913 INFO L93 Difference]: Finished difference Result 12114 states and 54228 transitions. [2021-06-05 03:44:37,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:37,913 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:37,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:37,943 INFO L225 Difference]: With dead ends: 12114 [2021-06-05 03:44:37,943 INFO L226 Difference]: Without dead ends: 11572 [2021-06-05 03:44:37,943 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 123.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:38,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11572 states. [2021-06-05 03:44:38,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11572 to 5309. [2021-06-05 03:44:38,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5309 states, 5308 states have (on average 4.72569706103994) internal successors, (25084), 5308 states have internal predecessors, (25084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:38,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5309 states to 5309 states and 25084 transitions. [2021-06-05 03:44:38,180 INFO L78 Accepts]: Start accepts. Automaton has 5309 states and 25084 transitions. Word has length 29 [2021-06-05 03:44:38,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:38,180 INFO L482 AbstractCegarLoop]: Abstraction has 5309 states and 25084 transitions. [2021-06-05 03:44:38,180 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:38,180 INFO L276 IsEmpty]: Start isEmpty. Operand 5309 states and 25084 transitions. [2021-06-05 03:44:38,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:38,189 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:38,189 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:38,189 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable689 [2021-06-05 03:44:38,189 INFO L430 AbstractCegarLoop]: === Iteration 691 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:38,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:38,189 INFO L82 PathProgramCache]: Analyzing trace with hash -1756990969, now seen corresponding path program 686 times [2021-06-05 03:44:38,189 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:38,189 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380814472] [2021-06-05 03:44:38,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:38,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:38,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:38,304 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:38,304 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380814472] [2021-06-05 03:44:38,304 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380814472] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:38,304 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:38,304 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:38,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568246574] [2021-06-05 03:44:38,305 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:38,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:38,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:38,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:38,305 INFO L87 Difference]: Start difference. First operand 5309 states and 25084 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:38,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:38,427 INFO L93 Difference]: Finished difference Result 12047 states and 53855 transitions. [2021-06-05 03:44:38,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:38,427 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:38,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:38,456 INFO L225 Difference]: With dead ends: 12047 [2021-06-05 03:44:38,456 INFO L226 Difference]: Without dead ends: 11462 [2021-06-05 03:44:38,456 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 139.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:38,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11462 states. [2021-06-05 03:44:38,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11462 to 5199. [2021-06-05 03:44:38,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5199 states, 5198 states have (on average 4.737398999615237) internal successors, (24625), 5198 states have internal predecessors, (24625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:38,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5199 states to 5199 states and 24625 transitions. [2021-06-05 03:44:38,692 INFO L78 Accepts]: Start accepts. Automaton has 5199 states and 24625 transitions. Word has length 29 [2021-06-05 03:44:38,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:38,692 INFO L482 AbstractCegarLoop]: Abstraction has 5199 states and 24625 transitions. [2021-06-05 03:44:38,692 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:38,692 INFO L276 IsEmpty]: Start isEmpty. Operand 5199 states and 24625 transitions. [2021-06-05 03:44:38,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:38,701 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:38,701 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:38,701 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable690 [2021-06-05 03:44:38,701 INFO L430 AbstractCegarLoop]: === Iteration 692 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:38,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:38,701 INFO L82 PathProgramCache]: Analyzing trace with hash -1417009721, now seen corresponding path program 687 times [2021-06-05 03:44:38,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:38,702 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322613052] [2021-06-05 03:44:38,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:38,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:38,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:38,858 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:38,858 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322613052] [2021-06-05 03:44:38,858 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322613052] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:38,858 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:38,858 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:38,858 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374044568] [2021-06-05 03:44:38,858 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:38,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:38,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:38,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:38,858 INFO L87 Difference]: Start difference. First operand 5199 states and 24625 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:38,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:38,986 INFO L93 Difference]: Finished difference Result 12108 states and 54155 transitions. [2021-06-05 03:44:38,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:38,986 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:38,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:39,023 INFO L225 Difference]: With dead ends: 12108 [2021-06-05 03:44:39,023 INFO L226 Difference]: Without dead ends: 11566 [2021-06-05 03:44:39,023 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 158.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:39,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11566 states. [2021-06-05 03:44:39,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11566 to 5307. [2021-06-05 03:44:39,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5307 states, 5306 states have (on average 4.716358839050132) internal successors, (25025), 5306 states have internal predecessors, (25025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:39,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5307 states to 5307 states and 25025 transitions. [2021-06-05 03:44:39,260 INFO L78 Accepts]: Start accepts. Automaton has 5307 states and 25025 transitions. Word has length 29 [2021-06-05 03:44:39,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:39,260 INFO L482 AbstractCegarLoop]: Abstraction has 5307 states and 25025 transitions. [2021-06-05 03:44:39,260 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:39,260 INFO L276 IsEmpty]: Start isEmpty. Operand 5307 states and 25025 transitions. [2021-06-05 03:44:39,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:39,269 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:39,269 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:39,269 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable691 [2021-06-05 03:44:39,269 INFO L430 AbstractCegarLoop]: === Iteration 693 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:39,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:39,269 INFO L82 PathProgramCache]: Analyzing trace with hash -1030669945, now seen corresponding path program 688 times [2021-06-05 03:44:39,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:39,269 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733919825] [2021-06-05 03:44:39,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:39,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:39,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:39,396 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:39,396 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733919825] [2021-06-05 03:44:39,396 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733919825] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:39,396 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:39,396 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:39,396 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069911908] [2021-06-05 03:44:39,396 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:39,396 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:39,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:39,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:39,396 INFO L87 Difference]: Start difference. First operand 5307 states and 25025 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:39,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:39,515 INFO L93 Difference]: Finished difference Result 12037 states and 53772 transitions. [2021-06-05 03:44:39,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:39,515 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:39,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:39,543 INFO L225 Difference]: With dead ends: 12037 [2021-06-05 03:44:39,543 INFO L226 Difference]: Without dead ends: 11458 [2021-06-05 03:44:39,543 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 149.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:39,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11458 states. [2021-06-05 03:44:39,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11458 to 5199. [2021-06-05 03:44:39,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5199 states, 5198 states have (on average 4.727010388611005) internal successors, (24571), 5198 states have internal predecessors, (24571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:39,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5199 states to 5199 states and 24571 transitions. [2021-06-05 03:44:39,774 INFO L78 Accepts]: Start accepts. Automaton has 5199 states and 24571 transitions. Word has length 29 [2021-06-05 03:44:39,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:39,774 INFO L482 AbstractCegarLoop]: Abstraction has 5199 states and 24571 transitions. [2021-06-05 03:44:39,774 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:39,774 INFO L276 IsEmpty]: Start isEmpty. Operand 5199 states and 24571 transitions. [2021-06-05 03:44:39,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:39,782 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:39,782 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:39,782 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable692 [2021-06-05 03:44:39,782 INFO L430 AbstractCegarLoop]: === Iteration 694 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:39,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:39,782 INFO L82 PathProgramCache]: Analyzing trace with hash -823162583, now seen corresponding path program 689 times [2021-06-05 03:44:39,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:39,782 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674609559] [2021-06-05 03:44:39,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:39,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:39,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:39,897 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:39,897 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674609559] [2021-06-05 03:44:39,897 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674609559] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:39,897 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:39,897 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:39,897 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993077791] [2021-06-05 03:44:39,897 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:39,897 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:39,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:39,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:39,898 INFO L87 Difference]: Start difference. First operand 5199 states and 24571 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:40,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:40,027 INFO L93 Difference]: Finished difference Result 11942 states and 53431 transitions. [2021-06-05 03:44:40,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:40,027 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:40,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:40,055 INFO L225 Difference]: With dead ends: 11942 [2021-06-05 03:44:40,055 INFO L226 Difference]: Without dead ends: 11467 [2021-06-05 03:44:40,055 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 139.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:40,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11467 states. [2021-06-05 03:44:40,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11467 to 5275. [2021-06-05 03:44:40,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5275 states, 5274 states have (on average 4.713500189609404) internal successors, (24859), 5274 states have internal predecessors, (24859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:40,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5275 states to 5275 states and 24859 transitions. [2021-06-05 03:44:40,285 INFO L78 Accepts]: Start accepts. Automaton has 5275 states and 24859 transitions. Word has length 29 [2021-06-05 03:44:40,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:40,285 INFO L482 AbstractCegarLoop]: Abstraction has 5275 states and 24859 transitions. [2021-06-05 03:44:40,285 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:40,285 INFO L276 IsEmpty]: Start isEmpty. Operand 5275 states and 24859 transitions. [2021-06-05 03:44:40,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:40,294 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:40,294 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:40,294 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable693 [2021-06-05 03:44:40,294 INFO L430 AbstractCegarLoop]: === Iteration 695 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:40,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:40,294 INFO L82 PathProgramCache]: Analyzing trace with hash -1669959545, now seen corresponding path program 690 times [2021-06-05 03:44:40,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:40,294 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955072719] [2021-06-05 03:44:40,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:40,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:40,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:40,409 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:40,409 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955072719] [2021-06-05 03:44:40,409 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955072719] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:40,409 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:40,409 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:40,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984322827] [2021-06-05 03:44:40,409 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:40,409 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:40,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:40,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:40,410 INFO L87 Difference]: Start difference. First operand 5275 states and 24859 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:40,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:40,531 INFO L93 Difference]: Finished difference Result 11938 states and 53343 transitions. [2021-06-05 03:44:40,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:40,531 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:40,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:40,558 INFO L225 Difference]: With dead ends: 11938 [2021-06-05 03:44:40,559 INFO L226 Difference]: Without dead ends: 11337 [2021-06-05 03:44:40,559 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 139.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:40,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11337 states. [2021-06-05 03:44:40,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11337 to 5145. [2021-06-05 03:44:40,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5145 states, 5144 states have (on average 4.739113530326594) internal successors, (24378), 5144 states have internal predecessors, (24378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:40,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5145 states to 5145 states and 24378 transitions. [2021-06-05 03:44:40,864 INFO L78 Accepts]: Start accepts. Automaton has 5145 states and 24378 transitions. Word has length 29 [2021-06-05 03:44:40,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:40,864 INFO L482 AbstractCegarLoop]: Abstraction has 5145 states and 24378 transitions. [2021-06-05 03:44:40,864 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:40,864 INFO L276 IsEmpty]: Start isEmpty. Operand 5145 states and 24378 transitions. [2021-06-05 03:44:40,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:40,874 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:40,874 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:40,874 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable694 [2021-06-05 03:44:40,874 INFO L430 AbstractCegarLoop]: === Iteration 696 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:40,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:40,874 INFO L82 PathProgramCache]: Analyzing trace with hash 1217667369, now seen corresponding path program 691 times [2021-06-05 03:44:40,874 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:40,874 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366138168] [2021-06-05 03:44:40,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:40,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:41,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:41,008 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:41,009 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366138168] [2021-06-05 03:44:41,009 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366138168] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:41,009 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:41,009 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:41,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471115031] [2021-06-05 03:44:41,009 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:41,009 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:41,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:41,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:41,009 INFO L87 Difference]: Start difference. First operand 5145 states and 24378 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:41,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:41,109 INFO L93 Difference]: Finished difference Result 11519 states and 51604 transitions. [2021-06-05 03:44:41,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:41,109 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:41,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:41,136 INFO L225 Difference]: With dead ends: 11519 [2021-06-05 03:44:41,137 INFO L226 Difference]: Without dead ends: 11104 [2021-06-05 03:44:41,137 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 140.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:41,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11104 states. [2021-06-05 03:44:41,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11104 to 5217. [2021-06-05 03:44:41,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5217 states, 5216 states have (on average 4.731211656441718) internal successors, (24678), 5216 states have internal predecessors, (24678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:41,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5217 states to 5217 states and 24678 transitions. [2021-06-05 03:44:41,364 INFO L78 Accepts]: Start accepts. Automaton has 5217 states and 24678 transitions. Word has length 29 [2021-06-05 03:44:41,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:41,364 INFO L482 AbstractCegarLoop]: Abstraction has 5217 states and 24678 transitions. [2021-06-05 03:44:41,364 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:41,365 INFO L276 IsEmpty]: Start isEmpty. Operand 5217 states and 24678 transitions. [2021-06-05 03:44:41,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:41,373 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:41,373 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:41,373 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable695 [2021-06-05 03:44:41,373 INFO L430 AbstractCegarLoop]: === Iteration 697 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:41,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:41,373 INFO L82 PathProgramCache]: Analyzing trace with hash 370870407, now seen corresponding path program 692 times [2021-06-05 03:44:41,373 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:41,373 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217095919] [2021-06-05 03:44:41,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:41,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:41,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:41,505 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:41,505 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217095919] [2021-06-05 03:44:41,505 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217095919] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:41,505 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:41,505 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:41,505 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280922987] [2021-06-05 03:44:41,506 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:41,506 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:41,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:41,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:41,506 INFO L87 Difference]: Start difference. First operand 5217 states and 24678 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:41,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:41,615 INFO L93 Difference]: Finished difference Result 11579 states and 51820 transitions. [2021-06-05 03:44:41,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:41,616 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:41,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:41,643 INFO L225 Difference]: With dead ends: 11579 [2021-06-05 03:44:41,643 INFO L226 Difference]: Without dead ends: 11056 [2021-06-05 03:44:41,643 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 155.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:41,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11056 states. [2021-06-05 03:44:41,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11056 to 5169. [2021-06-05 03:44:41,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5169 states, 5168 states have (on average 4.7364551083591335) internal successors, (24478), 5168 states have internal predecessors, (24478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:41,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5169 states to 5169 states and 24478 transitions. [2021-06-05 03:44:41,869 INFO L78 Accepts]: Start accepts. Automaton has 5169 states and 24478 transitions. Word has length 29 [2021-06-05 03:44:41,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:41,869 INFO L482 AbstractCegarLoop]: Abstraction has 5169 states and 24478 transitions. [2021-06-05 03:44:41,869 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:41,869 INFO L276 IsEmpty]: Start isEmpty. Operand 5169 states and 24478 transitions. [2021-06-05 03:44:41,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:41,878 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:41,878 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:41,878 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable696 [2021-06-05 03:44:41,878 INFO L430 AbstractCegarLoop]: === Iteration 698 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:41,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:41,878 INFO L82 PathProgramCache]: Analyzing trace with hash -805394169, now seen corresponding path program 693 times [2021-06-05 03:44:41,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:41,878 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062093285] [2021-06-05 03:44:41,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:41,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:42,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:42,013 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:42,013 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062093285] [2021-06-05 03:44:42,013 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062093285] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:42,013 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:42,013 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:42,013 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905162691] [2021-06-05 03:44:42,013 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:42,013 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:42,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:42,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:42,014 INFO L87 Difference]: Start difference. First operand 5169 states and 24478 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:42,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:42,108 INFO L93 Difference]: Finished difference Result 11515 states and 51568 transitions. [2021-06-05 03:44:42,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:42,108 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:42,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:42,137 INFO L225 Difference]: With dead ends: 11515 [2021-06-05 03:44:42,137 INFO L226 Difference]: Without dead ends: 11100 [2021-06-05 03:44:42,137 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 141.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:42,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11100 states. [2021-06-05 03:44:42,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11100 to 5217. [2021-06-05 03:44:42,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5217 states, 5216 states have (on average 4.726610429447852) internal successors, (24654), 5216 states have internal predecessors, (24654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:42,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5217 states to 5217 states and 24654 transitions. [2021-06-05 03:44:42,376 INFO L78 Accepts]: Start accepts. Automaton has 5217 states and 24654 transitions. Word has length 29 [2021-06-05 03:44:42,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:42,376 INFO L482 AbstractCegarLoop]: Abstraction has 5217 states and 24654 transitions. [2021-06-05 03:44:42,376 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:42,376 INFO L276 IsEmpty]: Start isEmpty. Operand 5217 states and 24654 transitions. [2021-06-05 03:44:42,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:42,385 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:42,385 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:42,385 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable697 [2021-06-05 03:44:42,385 INFO L430 AbstractCegarLoop]: === Iteration 699 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:42,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:42,385 INFO L82 PathProgramCache]: Analyzing trace with hash -1601421049, now seen corresponding path program 694 times [2021-06-05 03:44:42,385 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:42,385 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336674188] [2021-06-05 03:44:42,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:42,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:42,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:42,519 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:42,519 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336674188] [2021-06-05 03:44:42,519 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336674188] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:42,519 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:42,519 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:42,519 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437408770] [2021-06-05 03:44:42,520 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:42,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:42,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:42,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:42,520 INFO L87 Difference]: Start difference. First operand 5217 states and 24654 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:42,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:42,633 INFO L93 Difference]: Finished difference Result 11571 states and 51772 transitions. [2021-06-05 03:44:42,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:42,634 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:42,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:42,661 INFO L225 Difference]: With dead ends: 11571 [2021-06-05 03:44:42,661 INFO L226 Difference]: Without dead ends: 11052 [2021-06-05 03:44:42,661 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 157.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:42,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11052 states. [2021-06-05 03:44:42,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11052 to 5169. [2021-06-05 03:44:42,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5169 states, 5168 states have (on average 4.731811145510836) internal successors, (24454), 5168 states have internal predecessors, (24454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:42,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5169 states to 5169 states and 24454 transitions. [2021-06-05 03:44:42,893 INFO L78 Accepts]: Start accepts. Automaton has 5169 states and 24454 transitions. Word has length 29 [2021-06-05 03:44:42,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:42,893 INFO L482 AbstractCegarLoop]: Abstraction has 5169 states and 24454 transitions. [2021-06-05 03:44:42,893 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:42,893 INFO L276 IsEmpty]: Start isEmpty. Operand 5169 states and 24454 transitions. [2021-06-05 03:44:42,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:42,902 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:42,902 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:42,902 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable698 [2021-06-05 03:44:42,902 INFO L430 AbstractCegarLoop]: === Iteration 700 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:42,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:42,902 INFO L82 PathProgramCache]: Analyzing trace with hash -1662142235, now seen corresponding path program 695 times [2021-06-05 03:44:42,902 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:42,902 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203049110] [2021-06-05 03:44:42,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:42,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:43,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:43,024 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:43,024 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203049110] [2021-06-05 03:44:43,024 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203049110] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:43,024 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:43,024 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:43,024 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178859829] [2021-06-05 03:44:43,024 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:43,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:43,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:43,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:43,025 INFO L87 Difference]: Start difference. First operand 5169 states and 24454 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:43,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:43,137 INFO L93 Difference]: Finished difference Result 11663 states and 52212 transitions. [2021-06-05 03:44:43,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:43,138 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:43,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:43,165 INFO L225 Difference]: With dead ends: 11663 [2021-06-05 03:44:43,166 INFO L226 Difference]: Without dead ends: 11188 [2021-06-05 03:44:43,166 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 145.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:43,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11188 states. [2021-06-05 03:44:43,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11188 to 5245. [2021-06-05 03:44:43,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5245 states, 5244 states have (on average 4.71815408085431) internal successors, (24742), 5244 states have internal predecessors, (24742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:43,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5245 states to 5245 states and 24742 transitions. [2021-06-05 03:44:43,398 INFO L78 Accepts]: Start accepts. Automaton has 5245 states and 24742 transitions. Word has length 29 [2021-06-05 03:44:43,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:43,398 INFO L482 AbstractCegarLoop]: Abstraction has 5245 states and 24742 transitions. [2021-06-05 03:44:43,398 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:43,398 INFO L276 IsEmpty]: Start isEmpty. Operand 5245 states and 24742 transitions. [2021-06-05 03:44:43,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:43,407 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:43,407 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:43,407 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable699 [2021-06-05 03:44:43,407 INFO L430 AbstractCegarLoop]: === Iteration 701 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:43,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:43,408 INFO L82 PathProgramCache]: Analyzing trace with hash -2143044281, now seen corresponding path program 696 times [2021-06-05 03:44:43,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:43,408 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215607287] [2021-06-05 03:44:43,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:43,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:43,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:43,531 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:43,531 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215607287] [2021-06-05 03:44:43,531 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215607287] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:43,531 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:43,531 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:43,531 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088723698] [2021-06-05 03:44:43,531 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:43,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:43,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:43,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:43,532 INFO L87 Difference]: Start difference. First operand 5245 states and 24742 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:43,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:43,663 INFO L93 Difference]: Finished difference Result 11659 states and 52124 transitions. [2021-06-05 03:44:43,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:43,664 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:43,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:43,692 INFO L225 Difference]: With dead ends: 11659 [2021-06-05 03:44:43,692 INFO L226 Difference]: Without dead ends: 11068 [2021-06-05 03:44:43,692 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 146.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:43,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11068 states. [2021-06-05 03:44:43,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11068 to 5125. [2021-06-05 03:44:43,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5125 states, 5124 states have (on average 4.745511319281811) internal successors, (24316), 5124 states have internal predecessors, (24316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:43,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5125 states to 5125 states and 24316 transitions. [2021-06-05 03:44:43,923 INFO L78 Accepts]: Start accepts. Automaton has 5125 states and 24316 transitions. Word has length 29 [2021-06-05 03:44:43,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:43,923 INFO L482 AbstractCegarLoop]: Abstraction has 5125 states and 24316 transitions. [2021-06-05 03:44:43,923 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:43,924 INFO L276 IsEmpty]: Start isEmpty. Operand 5125 states and 24316 transitions. [2021-06-05 03:44:43,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:43,932 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:43,932 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:43,932 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable700 [2021-06-05 03:44:43,932 INFO L430 AbstractCegarLoop]: === Iteration 702 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:43,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:43,932 INFO L82 PathProgramCache]: Analyzing trace with hash -1609595765, now seen corresponding path program 697 times [2021-06-05 03:44:43,932 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:43,933 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295816814] [2021-06-05 03:44:43,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:43,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:44,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:44,063 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:44,063 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295816814] [2021-06-05 03:44:44,063 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295816814] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:44,063 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:44,063 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:44,063 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055813471] [2021-06-05 03:44:44,064 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:44,064 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:44,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:44,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:44,064 INFO L87 Difference]: Start difference. First operand 5125 states and 24316 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:44,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:44,192 INFO L93 Difference]: Finished difference Result 11374 states and 50978 transitions. [2021-06-05 03:44:44,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:44,192 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:44,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:44,220 INFO L225 Difference]: With dead ends: 11374 [2021-06-05 03:44:44,220 INFO L226 Difference]: Without dead ends: 10897 [2021-06-05 03:44:44,220 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 154.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:44,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10897 states. [2021-06-05 03:44:44,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10897 to 5209. [2021-06-05 03:44:44,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5209 states, 5208 states have (on average 4.73963133640553) internal successors, (24684), 5208 states have internal predecessors, (24684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:44,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5209 states to 5209 states and 24684 transitions. [2021-06-05 03:44:44,448 INFO L78 Accepts]: Start accepts. Automaton has 5209 states and 24684 transitions. Word has length 29 [2021-06-05 03:44:44,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:44,448 INFO L482 AbstractCegarLoop]: Abstraction has 5209 states and 24684 transitions. [2021-06-05 03:44:44,448 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:44,448 INFO L276 IsEmpty]: Start isEmpty. Operand 5209 states and 24684 transitions. [2021-06-05 03:44:44,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:44,457 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:44,457 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:44,457 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable701 [2021-06-05 03:44:44,457 INFO L430 AbstractCegarLoop]: === Iteration 703 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:44,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:44,458 INFO L82 PathProgramCache]: Analyzing trace with hash 1838574569, now seen corresponding path program 698 times [2021-06-05 03:44:44,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:44,458 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14695288] [2021-06-05 03:44:44,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:44,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:44,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:44,591 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:44,591 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14695288] [2021-06-05 03:44:44,591 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14695288] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:44,591 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:44,591 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:44,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172776222] [2021-06-05 03:44:44,591 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:44,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:44,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:44,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:44,592 INFO L87 Difference]: Start difference. First operand 5209 states and 24684 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:44,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:44,689 INFO L93 Difference]: Finished difference Result 11312 states and 50661 transitions. [2021-06-05 03:44:44,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:44,690 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:44,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:44,717 INFO L225 Difference]: With dead ends: 11312 [2021-06-05 03:44:44,717 INFO L226 Difference]: Without dead ends: 10849 [2021-06-05 03:44:44,717 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 140.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:44,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10849 states. [2021-06-05 03:44:44,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10849 to 5161. [2021-06-05 03:44:44,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.744961240310078) internal successors, (24484), 5160 states have internal predecessors, (24484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:44,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24484 transitions. [2021-06-05 03:44:44,947 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24484 transitions. Word has length 29 [2021-06-05 03:44:44,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:44,947 INFO L482 AbstractCegarLoop]: Abstraction has 5161 states and 24484 transitions. [2021-06-05 03:44:44,947 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:44,948 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24484 transitions. [2021-06-05 03:44:44,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:44,956 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:44,956 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:44,956 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable702 [2021-06-05 03:44:44,956 INFO L430 AbstractCegarLoop]: === Iteration 704 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:44,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:44,957 INFO L82 PathProgramCache]: Analyzing trace with hash 662309993, now seen corresponding path program 699 times [2021-06-05 03:44:44,957 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:44,957 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052780453] [2021-06-05 03:44:44,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:44,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:45,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:45,080 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:45,080 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052780453] [2021-06-05 03:44:45,080 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052780453] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:45,080 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:45,080 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:45,080 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937019441] [2021-06-05 03:44:45,080 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:45,080 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:45,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:45,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:45,080 INFO L87 Difference]: Start difference. First operand 5161 states and 24484 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:45,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:45,195 INFO L93 Difference]: Finished difference Result 11464 states and 51365 transitions. [2021-06-05 03:44:45,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:45,195 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:45,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:45,222 INFO L225 Difference]: With dead ends: 11464 [2021-06-05 03:44:45,223 INFO L226 Difference]: Without dead ends: 10987 [2021-06-05 03:44:45,223 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 147.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:45,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10987 states. [2021-06-05 03:44:45,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10987 to 5239. [2021-06-05 03:44:45,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5239 states, 5238 states have (on average 4.730240549828179) internal successors, (24777), 5238 states have internal predecessors, (24777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:45,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5239 states to 5239 states and 24777 transitions. [2021-06-05 03:44:45,454 INFO L78 Accepts]: Start accepts. Automaton has 5239 states and 24777 transitions. Word has length 29 [2021-06-05 03:44:45,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:45,454 INFO L482 AbstractCegarLoop]: Abstraction has 5239 states and 24777 transitions. [2021-06-05 03:44:45,455 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:45,455 INFO L276 IsEmpty]: Start isEmpty. Operand 5239 states and 24777 transitions. [2021-06-05 03:44:45,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:45,463 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:45,463 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:45,463 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable703 [2021-06-05 03:44:45,463 INFO L430 AbstractCegarLoop]: === Iteration 705 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:45,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:45,464 INFO L82 PathProgramCache]: Analyzing trace with hash -133716887, now seen corresponding path program 700 times [2021-06-05 03:44:45,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:45,464 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498057167] [2021-06-05 03:44:45,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:45,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:45,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:45,587 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:45,587 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498057167] [2021-06-05 03:44:45,587 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498057167] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:45,587 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:45,587 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:45,587 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110704359] [2021-06-05 03:44:45,587 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:45,587 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:45,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:45,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:45,587 INFO L87 Difference]: Start difference. First operand 5239 states and 24777 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:45,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:45,705 INFO L93 Difference]: Finished difference Result 11462 states and 51282 transitions. [2021-06-05 03:44:45,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:45,706 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:45,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:45,733 INFO L225 Difference]: With dead ends: 11462 [2021-06-05 03:44:45,733 INFO L226 Difference]: Without dead ends: 10909 [2021-06-05 03:44:45,733 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 146.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:45,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10909 states. [2021-06-05 03:44:45,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10909 to 5161. [2021-06-05 03:44:45,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.74031007751938) internal successors, (24460), 5160 states have internal predecessors, (24460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:45,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24460 transitions. [2021-06-05 03:44:45,964 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24460 transitions. Word has length 29 [2021-06-05 03:44:45,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:45,964 INFO L482 AbstractCegarLoop]: Abstraction has 5161 states and 24460 transitions. [2021-06-05 03:44:45,964 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:45,964 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24460 transitions. [2021-06-05 03:44:45,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:45,973 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:45,973 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:45,973 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable704 [2021-06-05 03:44:45,973 INFO L430 AbstractCegarLoop]: === Iteration 706 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:45,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:45,973 INFO L82 PathProgramCache]: Analyzing trace with hash -194438073, now seen corresponding path program 701 times [2021-06-05 03:44:45,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:45,973 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785010303] [2021-06-05 03:44:45,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:45,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:46,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:46,106 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:46,106 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785010303] [2021-06-05 03:44:46,106 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785010303] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:46,106 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:46,106 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:46,106 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631815344] [2021-06-05 03:44:46,106 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:46,106 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:46,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:46,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:46,106 INFO L87 Difference]: Start difference. First operand 5161 states and 24460 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:46,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:46,207 INFO L93 Difference]: Finished difference Result 11310 states and 50656 transitions. [2021-06-05 03:44:46,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:46,207 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:46,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:46,234 INFO L225 Difference]: With dead ends: 11310 [2021-06-05 03:44:46,235 INFO L226 Difference]: Without dead ends: 10895 [2021-06-05 03:44:46,235 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 139.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:46,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10895 states. [2021-06-05 03:44:46,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10895 to 5209. [2021-06-05 03:44:46,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5209 states, 5208 states have (on average 4.7304147465437785) internal successors, (24636), 5208 states have internal predecessors, (24636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:46,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5209 states to 5209 states and 24636 transitions. [2021-06-05 03:44:46,465 INFO L78 Accepts]: Start accepts. Automaton has 5209 states and 24636 transitions. Word has length 29 [2021-06-05 03:44:46,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:46,465 INFO L482 AbstractCegarLoop]: Abstraction has 5209 states and 24636 transitions. [2021-06-05 03:44:46,465 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:46,465 INFO L276 IsEmpty]: Start isEmpty. Operand 5209 states and 24636 transitions. [2021-06-05 03:44:46,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:46,474 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:46,474 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:46,474 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable705 [2021-06-05 03:44:46,474 INFO L430 AbstractCegarLoop]: === Iteration 707 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:46,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:46,475 INFO L82 PathProgramCache]: Analyzing trace with hash -675340119, now seen corresponding path program 702 times [2021-06-05 03:44:46,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:46,475 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983879220] [2021-06-05 03:44:46,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:46,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:46,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:46,609 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:46,609 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983879220] [2021-06-05 03:44:46,609 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983879220] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:46,609 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:46,609 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:46,609 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506764443] [2021-06-05 03:44:46,609 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:46,609 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:46,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:46,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:46,610 INFO L87 Difference]: Start difference. First operand 5209 states and 24636 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:46,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:46,730 INFO L93 Difference]: Finished difference Result 11370 states and 50872 transitions. [2021-06-05 03:44:46,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:46,730 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:46,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:46,757 INFO L225 Difference]: With dead ends: 11370 [2021-06-05 03:44:46,757 INFO L226 Difference]: Without dead ends: 10823 [2021-06-05 03:44:46,758 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 158.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:46,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10823 states. [2021-06-05 03:44:46,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10823 to 5137. [2021-06-05 03:44:46,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5137 states, 5136 states have (on average 4.7453271028037385) internal successors, (24372), 5136 states have internal predecessors, (24372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:46,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5137 states to 5137 states and 24372 transitions. [2021-06-05 03:44:46,989 INFO L78 Accepts]: Start accepts. Automaton has 5137 states and 24372 transitions. Word has length 29 [2021-06-05 03:44:46,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:46,989 INFO L482 AbstractCegarLoop]: Abstraction has 5137 states and 24372 transitions. [2021-06-05 03:44:46,989 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:46,989 INFO L276 IsEmpty]: Start isEmpty. Operand 5137 states and 24372 transitions. [2021-06-05 03:44:46,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:46,998 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:46,998 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:46,998 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable706 [2021-06-05 03:44:46,998 INFO L430 AbstractCegarLoop]: === Iteration 708 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:46,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:46,998 INFO L82 PathProgramCache]: Analyzing trace with hash -151548695, now seen corresponding path program 703 times [2021-06-05 03:44:46,998 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:46,998 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220270963] [2021-06-05 03:44:46,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:46,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:47,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:47,130 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:47,130 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220270963] [2021-06-05 03:44:47,130 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220270963] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:47,130 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:47,130 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:47,130 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756880668] [2021-06-05 03:44:47,130 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:47,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:47,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:47,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:47,131 INFO L87 Difference]: Start difference. First operand 5137 states and 24372 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:47,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:47,252 INFO L93 Difference]: Finished difference Result 11368 states and 50947 transitions. [2021-06-05 03:44:47,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:47,253 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:47,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:47,280 INFO L225 Difference]: With dead ends: 11368 [2021-06-05 03:44:47,280 INFO L226 Difference]: Without dead ends: 10891 [2021-06-05 03:44:47,281 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 156.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:47,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10891 states. [2021-06-05 03:44:47,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10891 to 5209. [2021-06-05 03:44:47,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5209 states, 5208 states have (on average 4.7373271889400925) internal successors, (24672), 5208 states have internal predecessors, (24672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:47,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5209 states to 5209 states and 24672 transitions. [2021-06-05 03:44:47,513 INFO L78 Accepts]: Start accepts. Automaton has 5209 states and 24672 transitions. Word has length 29 [2021-06-05 03:44:47,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:47,513 INFO L482 AbstractCegarLoop]: Abstraction has 5209 states and 24672 transitions. [2021-06-05 03:44:47,513 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:47,513 INFO L276 IsEmpty]: Start isEmpty. Operand 5209 states and 24672 transitions. [2021-06-05 03:44:47,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:47,522 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:47,522 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:47,522 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable707 [2021-06-05 03:44:47,522 INFO L430 AbstractCegarLoop]: === Iteration 709 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:47,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:47,522 INFO L82 PathProgramCache]: Analyzing trace with hash -998345657, now seen corresponding path program 704 times [2021-06-05 03:44:47,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:47,522 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113908043] [2021-06-05 03:44:47,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:47,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:47,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:47,656 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:47,656 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113908043] [2021-06-05 03:44:47,656 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113908043] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:47,656 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:47,656 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:47,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885186374] [2021-06-05 03:44:47,656 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:47,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:47,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:47,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:47,656 INFO L87 Difference]: Start difference. First operand 5209 states and 24672 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:47,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:47,759 INFO L93 Difference]: Finished difference Result 11306 states and 50630 transitions. [2021-06-05 03:44:47,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:47,760 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:47,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:47,786 INFO L225 Difference]: With dead ends: 11306 [2021-06-05 03:44:47,786 INFO L226 Difference]: Without dead ends: 10843 [2021-06-05 03:44:47,786 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 140.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:47,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10843 states. [2021-06-05 03:44:47,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10843 to 5161. [2021-06-05 03:44:47,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.742635658914729) internal successors, (24472), 5160 states have internal predecessors, (24472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:48,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24472 transitions. [2021-06-05 03:44:48,013 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24472 transitions. Word has length 29 [2021-06-05 03:44:48,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:48,013 INFO L482 AbstractCegarLoop]: Abstraction has 5161 states and 24472 transitions. [2021-06-05 03:44:48,013 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:48,013 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24472 transitions. [2021-06-05 03:44:48,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:48,022 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:48,022 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:48,022 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable708 [2021-06-05 03:44:48,022 INFO L430 AbstractCegarLoop]: === Iteration 710 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:48,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:48,022 INFO L82 PathProgramCache]: Analyzing trace with hash -629201687, now seen corresponding path program 705 times [2021-06-05 03:44:48,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:48,022 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900349123] [2021-06-05 03:44:48,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:48,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:48,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:48,145 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:48,145 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900349123] [2021-06-05 03:44:48,145 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900349123] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:48,145 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:48,145 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:48,145 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785133531] [2021-06-05 03:44:48,145 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:48,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:48,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:48,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:48,145 INFO L87 Difference]: Start difference. First operand 5161 states and 24472 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:48,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:48,257 INFO L93 Difference]: Finished difference Result 11452 states and 51315 transitions. [2021-06-05 03:44:48,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:48,257 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:48,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:48,285 INFO L225 Difference]: With dead ends: 11452 [2021-06-05 03:44:48,285 INFO L226 Difference]: Without dead ends: 10975 [2021-06-05 03:44:48,285 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 147.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:48,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10975 states. [2021-06-05 03:44:48,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10975 to 5237. [2021-06-05 03:44:48,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5237 states, 5236 states have (on average 4.728800611153552) internal successors, (24760), 5236 states have internal predecessors, (24760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:48,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5237 states to 5237 states and 24760 transitions. [2021-06-05 03:44:48,517 INFO L78 Accepts]: Start accepts. Automaton has 5237 states and 24760 transitions. Word has length 29 [2021-06-05 03:44:48,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:48,517 INFO L482 AbstractCegarLoop]: Abstraction has 5237 states and 24760 transitions. [2021-06-05 03:44:48,517 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:48,517 INFO L276 IsEmpty]: Start isEmpty. Operand 5237 states and 24760 transitions. [2021-06-05 03:44:48,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:48,526 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:48,526 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:48,526 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable709 [2021-06-05 03:44:48,526 INFO L430 AbstractCegarLoop]: === Iteration 711 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:48,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:48,526 INFO L82 PathProgramCache]: Analyzing trace with hash 907398377, now seen corresponding path program 706 times [2021-06-05 03:44:48,526 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:48,526 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611474803] [2021-06-05 03:44:48,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:48,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:48,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:48,650 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:48,650 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611474803] [2021-06-05 03:44:48,650 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611474803] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:48,650 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:48,650 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:48,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503160941] [2021-06-05 03:44:48,650 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:48,650 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:48,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:48,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:48,650 INFO L87 Difference]: Start difference. First operand 5237 states and 24760 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:48,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:48,770 INFO L93 Difference]: Finished difference Result 11446 states and 51222 transitions. [2021-06-05 03:44:48,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:48,771 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:48,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:48,797 INFO L225 Difference]: With dead ends: 11446 [2021-06-05 03:44:48,797 INFO L226 Difference]: Without dead ends: 10899 [2021-06-05 03:44:48,797 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 147.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:48,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10899 states. [2021-06-05 03:44:49,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10899 to 5161. [2021-06-05 03:44:49,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.737984496124031) internal successors, (24448), 5160 states have internal predecessors, (24448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:49,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24448 transitions. [2021-06-05 03:44:49,022 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24448 transitions. Word has length 29 [2021-06-05 03:44:49,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:49,022 INFO L482 AbstractCegarLoop]: Abstraction has 5161 states and 24448 transitions. [2021-06-05 03:44:49,022 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:49,022 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24448 transitions. [2021-06-05 03:44:49,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:49,030 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:49,030 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:49,030 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable710 [2021-06-05 03:44:49,031 INFO L430 AbstractCegarLoop]: === Iteration 712 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:49,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:49,031 INFO L82 PathProgramCache]: Analyzing trace with hash -1485949753, now seen corresponding path program 707 times [2021-06-05 03:44:49,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:49,031 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102145117] [2021-06-05 03:44:49,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:49,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:49,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:49,168 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:49,168 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102145117] [2021-06-05 03:44:49,168 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102145117] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:49,168 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:49,168 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:49,168 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517583352] [2021-06-05 03:44:49,168 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:49,168 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:49,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:49,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:49,168 INFO L87 Difference]: Start difference. First operand 5161 states and 24448 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:49,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:49,267 INFO L93 Difference]: Finished difference Result 11300 states and 50613 transitions. [2021-06-05 03:44:49,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:49,267 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:49,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:49,294 INFO L225 Difference]: With dead ends: 11300 [2021-06-05 03:44:49,294 INFO L226 Difference]: Without dead ends: 10885 [2021-06-05 03:44:49,295 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 144.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:49,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10885 states. [2021-06-05 03:44:49,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10885 to 5209. [2021-06-05 03:44:49,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5209 states, 5208 states have (on average 4.728110599078341) internal successors, (24624), 5208 states have internal predecessors, (24624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:49,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5209 states to 5209 states and 24624 transitions. [2021-06-05 03:44:49,535 INFO L78 Accepts]: Start accepts. Automaton has 5209 states and 24624 transitions. Word has length 29 [2021-06-05 03:44:49,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:49,535 INFO L482 AbstractCegarLoop]: Abstraction has 5209 states and 24624 transitions. [2021-06-05 03:44:49,535 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:49,535 INFO L276 IsEmpty]: Start isEmpty. Operand 5209 states and 24624 transitions. [2021-06-05 03:44:49,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:49,544 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:49,544 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:49,544 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable711 [2021-06-05 03:44:49,544 INFO L430 AbstractCegarLoop]: === Iteration 713 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:49,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:49,544 INFO L82 PathProgramCache]: Analyzing trace with hash 1635057833, now seen corresponding path program 708 times [2021-06-05 03:44:49,544 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:49,544 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541195182] [2021-06-05 03:44:49,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:49,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:49,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:49,680 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:49,680 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541195182] [2021-06-05 03:44:49,680 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541195182] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:49,680 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:49,680 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:49,680 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725713780] [2021-06-05 03:44:49,680 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:49,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:49,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:49,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:49,681 INFO L87 Difference]: Start difference. First operand 5209 states and 24624 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:49,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:49,804 INFO L93 Difference]: Finished difference Result 11356 states and 50817 transitions. [2021-06-05 03:44:49,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:49,804 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:49,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:49,831 INFO L225 Difference]: With dead ends: 11356 [2021-06-05 03:44:49,831 INFO L226 Difference]: Without dead ends: 10813 [2021-06-05 03:44:49,831 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 160.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:49,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10813 states. [2021-06-05 03:44:50,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10813 to 5137. [2021-06-05 03:44:50,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5137 states, 5136 states have (on average 4.742990654205608) internal successors, (24360), 5136 states have internal predecessors, (24360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:50,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5137 states to 5137 states and 24360 transitions. [2021-06-05 03:44:50,059 INFO L78 Accepts]: Start accepts. Automaton has 5137 states and 24360 transitions. Word has length 29 [2021-06-05 03:44:50,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:50,060 INFO L482 AbstractCegarLoop]: Abstraction has 5137 states and 24360 transitions. [2021-06-05 03:44:50,060 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:50,060 INFO L276 IsEmpty]: Start isEmpty. Operand 5137 states and 24360 transitions. [2021-06-05 03:44:50,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:50,068 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:50,068 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:50,068 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable712 [2021-06-05 03:44:50,068 INFO L430 AbstractCegarLoop]: === Iteration 714 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:50,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:50,068 INFO L82 PathProgramCache]: Analyzing trace with hash 1147280711, now seen corresponding path program 709 times [2021-06-05 03:44:50,068 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:50,068 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945837974] [2021-06-05 03:44:50,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:50,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:50,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:50,185 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:50,185 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945837974] [2021-06-05 03:44:50,185 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945837974] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:50,185 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:50,185 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:50,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128894812] [2021-06-05 03:44:50,185 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:50,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:50,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:50,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:50,185 INFO L87 Difference]: Start difference. First operand 5137 states and 24360 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:50,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:50,326 INFO L93 Difference]: Finished difference Result 11590 states and 51974 transitions. [2021-06-05 03:44:50,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:50,326 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:50,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:50,354 INFO L225 Difference]: With dead ends: 11590 [2021-06-05 03:44:50,354 INFO L226 Difference]: Without dead ends: 11113 [2021-06-05 03:44:50,354 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 140.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:50,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11113 states. [2021-06-05 03:44:50,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11113 to 5253. [2021-06-05 03:44:50,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5253 states, 5252 states have (on average 4.732292460015232) internal successors, (24854), 5252 states have internal predecessors, (24854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:50,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5253 states to 5253 states and 24854 transitions. [2021-06-05 03:44:50,586 INFO L78 Accepts]: Start accepts. Automaton has 5253 states and 24854 transitions. Word has length 29 [2021-06-05 03:44:50,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:50,586 INFO L482 AbstractCegarLoop]: Abstraction has 5253 states and 24854 transitions. [2021-06-05 03:44:50,586 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:50,586 INFO L276 IsEmpty]: Start isEmpty. Operand 5253 states and 24854 transitions. [2021-06-05 03:44:50,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:50,595 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:50,595 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:50,595 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable713 [2021-06-05 03:44:50,595 INFO L430 AbstractCegarLoop]: === Iteration 715 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:50,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:50,595 INFO L82 PathProgramCache]: Analyzing trace with hash 351253831, now seen corresponding path program 710 times [2021-06-05 03:44:50,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:50,595 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087415240] [2021-06-05 03:44:50,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:50,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:50,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:50,708 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:50,708 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087415240] [2021-06-05 03:44:50,708 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087415240] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:50,709 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:50,709 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:50,709 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127425385] [2021-06-05 03:44:50,709 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:50,709 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:50,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:50,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:50,709 INFO L87 Difference]: Start difference. First operand 5253 states and 24854 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:50,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:50,831 INFO L93 Difference]: Finished difference Result 11588 states and 51891 transitions. [2021-06-05 03:44:50,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:50,831 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:50,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:50,857 INFO L225 Difference]: With dead ends: 11588 [2021-06-05 03:44:50,858 INFO L226 Difference]: Without dead ends: 11035 [2021-06-05 03:44:50,858 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 137.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:50,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11035 states. [2021-06-05 03:44:51,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11035 to 5175. [2021-06-05 03:44:51,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5175 states, 5174 states have (on average 4.739659837649787) internal successors, (24523), 5174 states have internal predecessors, (24523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:51,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5175 states to 5175 states and 24523 transitions. [2021-06-05 03:44:51,088 INFO L78 Accepts]: Start accepts. Automaton has 5175 states and 24523 transitions. Word has length 29 [2021-06-05 03:44:51,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:51,088 INFO L482 AbstractCegarLoop]: Abstraction has 5175 states and 24523 transitions. [2021-06-05 03:44:51,088 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:51,088 INFO L276 IsEmpty]: Start isEmpty. Operand 5175 states and 24523 transitions. [2021-06-05 03:44:51,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:51,097 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:51,097 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:51,097 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable714 [2021-06-05 03:44:51,097 INFO L430 AbstractCegarLoop]: === Iteration 716 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:51,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:51,097 INFO L82 PathProgramCache]: Analyzing trace with hash -1438084823, now seen corresponding path program 711 times [2021-06-05 03:44:51,097 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:51,097 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992558485] [2021-06-05 03:44:51,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:51,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:51,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:51,211 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:51,211 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992558485] [2021-06-05 03:44:51,211 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992558485] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:51,211 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:51,211 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:51,211 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442519898] [2021-06-05 03:44:51,211 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:51,211 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:51,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:51,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:51,211 INFO L87 Difference]: Start difference. First operand 5175 states and 24523 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:51,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:51,330 INFO L93 Difference]: Finished difference Result 11584 states and 51917 transitions. [2021-06-05 03:44:51,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:51,330 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:51,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:51,357 INFO L225 Difference]: With dead ends: 11584 [2021-06-05 03:44:51,357 INFO L226 Difference]: Without dead ends: 11107 [2021-06-05 03:44:51,357 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 137.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:51,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11107 states. [2021-06-05 03:44:51,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11107 to 5251. [2021-06-05 03:44:51,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5251 states, 5250 states have (on average 4.725904761904762) internal successors, (24811), 5250 states have internal predecessors, (24811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:51,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5251 states to 5251 states and 24811 transitions. [2021-06-05 03:44:51,588 INFO L78 Accepts]: Start accepts. Automaton has 5251 states and 24811 transitions. Word has length 29 [2021-06-05 03:44:51,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:51,588 INFO L482 AbstractCegarLoop]: Abstraction has 5251 states and 24811 transitions. [2021-06-05 03:44:51,588 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:51,588 INFO L276 IsEmpty]: Start isEmpty. Operand 5251 states and 24811 transitions. [2021-06-05 03:44:51,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:51,597 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:51,597 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:51,597 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable715 [2021-06-05 03:44:51,597 INFO L430 AbstractCegarLoop]: === Iteration 717 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:51,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:51,597 INFO L82 PathProgramCache]: Analyzing trace with hash -1929521849, now seen corresponding path program 712 times [2021-06-05 03:44:51,597 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:51,597 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708774763] [2021-06-05 03:44:51,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:51,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:51,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:51,710 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:51,710 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708774763] [2021-06-05 03:44:51,710 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708774763] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:51,710 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:51,710 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:51,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043870122] [2021-06-05 03:44:51,710 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:51,710 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:51,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:51,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:51,711 INFO L87 Difference]: Start difference. First operand 5251 states and 24811 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:51,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:51,835 INFO L93 Difference]: Finished difference Result 11578 states and 51824 transitions. [2021-06-05 03:44:51,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:51,836 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:51,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:51,863 INFO L225 Difference]: With dead ends: 11578 [2021-06-05 03:44:51,863 INFO L226 Difference]: Without dead ends: 11031 [2021-06-05 03:44:51,863 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 136.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:51,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11031 states. [2021-06-05 03:44:52,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11031 to 5175. [2021-06-05 03:44:52,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5175 states, 5174 states have (on average 4.732315423270197) internal successors, (24485), 5174 states have internal predecessors, (24485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:52,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5175 states to 5175 states and 24485 transitions. [2021-06-05 03:44:52,092 INFO L78 Accepts]: Start accepts. Automaton has 5175 states and 24485 transitions. Word has length 29 [2021-06-05 03:44:52,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:52,092 INFO L482 AbstractCegarLoop]: Abstraction has 5175 states and 24485 transitions. [2021-06-05 03:44:52,092 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:52,092 INFO L276 IsEmpty]: Start isEmpty. Operand 5175 states and 24485 transitions. [2021-06-05 03:44:52,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:52,101 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:52,101 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:52,101 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable716 [2021-06-05 03:44:52,101 INFO L430 AbstractCegarLoop]: === Iteration 718 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:52,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:52,101 INFO L82 PathProgramCache]: Analyzing trace with hash -444834489, now seen corresponding path program 713 times [2021-06-05 03:44:52,101 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:52,101 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988718854] [2021-06-05 03:44:52,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:52,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:52,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:52,216 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:52,216 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988718854] [2021-06-05 03:44:52,216 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988718854] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:52,216 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:52,216 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:52,217 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046355821] [2021-06-05 03:44:52,217 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:52,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:52,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:52,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:52,217 INFO L87 Difference]: Start difference. First operand 5175 states and 24485 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:52,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:52,348 INFO L93 Difference]: Finished difference Result 11580 states and 51869 transitions. [2021-06-05 03:44:52,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:52,348 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:52,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:52,378 INFO L225 Difference]: With dead ends: 11580 [2021-06-05 03:44:52,378 INFO L226 Difference]: Without dead ends: 11105 [2021-06-05 03:44:52,378 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 140.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:52,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11105 states. [2021-06-05 03:44:52,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11105 to 5251. [2021-06-05 03:44:52,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5251 states, 5250 states have (on average 4.718666666666667) internal successors, (24773), 5250 states have internal predecessors, (24773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:52,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5251 states to 5251 states and 24773 transitions. [2021-06-05 03:44:52,613 INFO L78 Accepts]: Start accepts. Automaton has 5251 states and 24773 transitions. Word has length 29 [2021-06-05 03:44:52,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:52,614 INFO L482 AbstractCegarLoop]: Abstraction has 5251 states and 24773 transitions. [2021-06-05 03:44:52,614 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:52,614 INFO L276 IsEmpty]: Start isEmpty. Operand 5251 states and 24773 transitions. [2021-06-05 03:44:52,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:52,622 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:52,622 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:52,622 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable717 [2021-06-05 03:44:52,622 INFO L430 AbstractCegarLoop]: === Iteration 719 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:52,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:52,623 INFO L82 PathProgramCache]: Analyzing trace with hash -925736535, now seen corresponding path program 714 times [2021-06-05 03:44:52,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:52,623 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699373691] [2021-06-05 03:44:52,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:52,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:52,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:52,737 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:52,737 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699373691] [2021-06-05 03:44:52,738 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699373691] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:52,738 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:52,738 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:52,738 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404011082] [2021-06-05 03:44:52,738 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:52,738 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:52,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:52,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:52,738 INFO L87 Difference]: Start difference. First operand 5251 states and 24773 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:52,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:52,872 INFO L93 Difference]: Finished difference Result 11576 states and 51781 transitions. [2021-06-05 03:44:52,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:52,872 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:52,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:52,899 INFO L225 Difference]: With dead ends: 11576 [2021-06-05 03:44:52,899 INFO L226 Difference]: Without dead ends: 10991 [2021-06-05 03:44:52,899 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 137.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:53,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10991 states. [2021-06-05 03:44:53,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10991 to 5137. [2021-06-05 03:44:53,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5137 states, 5136 states have (on average 4.740654205607477) internal successors, (24348), 5136 states have internal predecessors, (24348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:53,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5137 states to 5137 states and 24348 transitions. [2021-06-05 03:44:53,131 INFO L78 Accepts]: Start accepts. Automaton has 5137 states and 24348 transitions. Word has length 29 [2021-06-05 03:44:53,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:53,131 INFO L482 AbstractCegarLoop]: Abstraction has 5137 states and 24348 transitions. [2021-06-05 03:44:53,131 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:53,131 INFO L276 IsEmpty]: Start isEmpty. Operand 5137 states and 24348 transitions. [2021-06-05 03:44:53,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:53,140 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:53,140 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:53,140 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable718 [2021-06-05 03:44:53,140 INFO L430 AbstractCegarLoop]: === Iteration 720 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:53,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:53,140 INFO L82 PathProgramCache]: Analyzing trace with hash -682543707, now seen corresponding path program 715 times [2021-06-05 03:44:53,140 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:53,140 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816828386] [2021-06-05 03:44:53,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:53,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:53,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:53,275 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:53,275 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816828386] [2021-06-05 03:44:53,275 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816828386] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:53,275 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:53,275 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:53,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920819317] [2021-06-05 03:44:53,275 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:53,275 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:53,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:53,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:53,275 INFO L87 Difference]: Start difference. First operand 5137 states and 24348 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:53,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:53,386 INFO L93 Difference]: Finished difference Result 11302 states and 50644 transitions. [2021-06-05 03:44:53,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:53,386 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:53,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:53,412 INFO L225 Difference]: With dead ends: 11302 [2021-06-05 03:44:53,413 INFO L226 Difference]: Without dead ends: 10887 [2021-06-05 03:44:53,413 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 141.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:53,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10887 states. [2021-06-05 03:44:53,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10887 to 5209. [2021-06-05 03:44:53,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5209 states, 5208 states have (on average 4.732718894009216) internal successors, (24648), 5208 states have internal predecessors, (24648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:53,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5209 states to 5209 states and 24648 transitions. [2021-06-05 03:44:53,640 INFO L78 Accepts]: Start accepts. Automaton has 5209 states and 24648 transitions. Word has length 29 [2021-06-05 03:44:53,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:53,640 INFO L482 AbstractCegarLoop]: Abstraction has 5209 states and 24648 transitions. [2021-06-05 03:44:53,640 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:53,641 INFO L276 IsEmpty]: Start isEmpty. Operand 5209 states and 24648 transitions. [2021-06-05 03:44:53,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:53,649 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:53,649 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:53,649 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable719 [2021-06-05 03:44:53,649 INFO L430 AbstractCegarLoop]: === Iteration 721 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:53,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:53,649 INFO L82 PathProgramCache]: Analyzing trace with hash -1163445753, now seen corresponding path program 716 times [2021-06-05 03:44:53,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:53,649 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4180691] [2021-06-05 03:44:53,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:53,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:53,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:53,785 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:53,785 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4180691] [2021-06-05 03:44:53,785 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4180691] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:53,785 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:53,785 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:53,785 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186833620] [2021-06-05 03:44:53,785 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:53,785 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:53,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:53,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:53,785 INFO L87 Difference]: Start difference. First operand 5209 states and 24648 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:53,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:53,896 INFO L93 Difference]: Finished difference Result 11362 states and 50860 transitions. [2021-06-05 03:44:53,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:53,896 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:53,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:53,923 INFO L225 Difference]: With dead ends: 11362 [2021-06-05 03:44:53,923 INFO L226 Difference]: Without dead ends: 10839 [2021-06-05 03:44:53,923 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 158.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:54,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10839 states. [2021-06-05 03:44:54,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10839 to 5161. [2021-06-05 03:44:54,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.737984496124031) internal successors, (24448), 5160 states have internal predecessors, (24448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:54,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24448 transitions. [2021-06-05 03:44:54,148 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24448 transitions. Word has length 29 [2021-06-05 03:44:54,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:54,148 INFO L482 AbstractCegarLoop]: Abstraction has 5161 states and 24448 transitions. [2021-06-05 03:44:54,148 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:54,148 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24448 transitions. [2021-06-05 03:44:54,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:54,157 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:54,157 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:54,157 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable720 [2021-06-05 03:44:54,157 INFO L430 AbstractCegarLoop]: === Iteration 722 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:54,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:54,157 INFO L82 PathProgramCache]: Analyzing trace with hash 1027058055, now seen corresponding path program 717 times [2021-06-05 03:44:54,157 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:54,157 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753218123] [2021-06-05 03:44:54,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:54,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:54,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:54,294 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:54,294 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753218123] [2021-06-05 03:44:54,294 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753218123] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:54,294 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:54,294 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:54,294 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597750765] [2021-06-05 03:44:54,294 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:54,294 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:54,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:54,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:54,294 INFO L87 Difference]: Start difference. First operand 5161 states and 24448 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:54,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:54,392 INFO L93 Difference]: Finished difference Result 11298 states and 50608 transitions. [2021-06-05 03:44:54,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:54,393 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:54,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:54,419 INFO L225 Difference]: With dead ends: 11298 [2021-06-05 03:44:54,419 INFO L226 Difference]: Without dead ends: 10883 [2021-06-05 03:44:54,420 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 143.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:54,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10883 states. [2021-06-05 03:44:54,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10883 to 5209. [2021-06-05 03:44:54,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5209 states, 5208 states have (on average 4.728110599078341) internal successors, (24624), 5208 states have internal predecessors, (24624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:54,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5209 states to 5209 states and 24624 transitions. [2021-06-05 03:44:54,656 INFO L78 Accepts]: Start accepts. Automaton has 5209 states and 24624 transitions. Word has length 29 [2021-06-05 03:44:54,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:54,656 INFO L482 AbstractCegarLoop]: Abstraction has 5209 states and 24624 transitions. [2021-06-05 03:44:54,656 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:54,656 INFO L276 IsEmpty]: Start isEmpty. Operand 5209 states and 24624 transitions. [2021-06-05 03:44:54,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:54,665 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:54,665 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:54,665 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable721 [2021-06-05 03:44:54,665 INFO L430 AbstractCegarLoop]: === Iteration 723 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:54,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:54,665 INFO L82 PathProgramCache]: Analyzing trace with hash 2120028551, now seen corresponding path program 718 times [2021-06-05 03:44:54,665 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:54,665 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857164878] [2021-06-05 03:44:54,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:54,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:54,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:54,803 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:54,803 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857164878] [2021-06-05 03:44:54,803 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857164878] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:54,803 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:54,803 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:54,803 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081033380] [2021-06-05 03:44:54,803 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:54,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:54,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:54,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:54,804 INFO L87 Difference]: Start difference. First operand 5209 states and 24624 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:54,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:54,922 INFO L93 Difference]: Finished difference Result 11354 states and 50812 transitions. [2021-06-05 03:44:54,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:54,922 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:54,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:54,949 INFO L225 Difference]: With dead ends: 11354 [2021-06-05 03:44:54,949 INFO L226 Difference]: Without dead ends: 10835 [2021-06-05 03:44:54,949 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 160.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:55,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10835 states. [2021-06-05 03:44:55,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10835 to 5161. [2021-06-05 03:44:55,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.733333333333333) internal successors, (24424), 5160 states have internal predecessors, (24424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:55,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24424 transitions. [2021-06-05 03:44:55,178 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24424 transitions. Word has length 29 [2021-06-05 03:44:55,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:55,178 INFO L482 AbstractCegarLoop]: Abstraction has 5161 states and 24424 transitions. [2021-06-05 03:44:55,178 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:55,178 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24424 transitions. [2021-06-05 03:44:55,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:55,187 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:55,187 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:55,187 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable722 [2021-06-05 03:44:55,187 INFO L430 AbstractCegarLoop]: === Iteration 724 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:55,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:55,187 INFO L82 PathProgramCache]: Analyzing trace with hash 237671785, now seen corresponding path program 719 times [2021-06-05 03:44:55,187 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:55,187 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386656819] [2021-06-05 03:44:55,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:55,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:55,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:55,312 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:55,312 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386656819] [2021-06-05 03:44:55,312 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386656819] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:55,312 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:55,312 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:55,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513337406] [2021-06-05 03:44:55,312 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:55,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:55,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:55,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:55,312 INFO L87 Difference]: Start difference. First operand 5161 states and 24424 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:55,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:55,426 INFO L93 Difference]: Finished difference Result 11446 states and 51252 transitions. [2021-06-05 03:44:55,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:55,426 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:55,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:55,456 INFO L225 Difference]: With dead ends: 11446 [2021-06-05 03:44:55,456 INFO L226 Difference]: Without dead ends: 10971 [2021-06-05 03:44:55,456 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 148.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:55,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10971 states. [2021-06-05 03:44:55,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10971 to 5237. [2021-06-05 03:44:55,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5237 states, 5236 states have (on average 4.719633307868602) internal successors, (24712), 5236 states have internal predecessors, (24712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:55,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5237 states to 5237 states and 24712 transitions. [2021-06-05 03:44:55,687 INFO L78 Accepts]: Start accepts. Automaton has 5237 states and 24712 transitions. Word has length 29 [2021-06-05 03:44:55,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:55,687 INFO L482 AbstractCegarLoop]: Abstraction has 5237 states and 24712 transitions. [2021-06-05 03:44:55,687 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:55,687 INFO L276 IsEmpty]: Start isEmpty. Operand 5237 states and 24712 transitions. [2021-06-05 03:44:55,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:55,696 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:55,696 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:55,696 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable723 [2021-06-05 03:44:55,696 INFO L430 AbstractCegarLoop]: === Iteration 725 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:55,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:55,696 INFO L82 PathProgramCache]: Analyzing trace with hash -1785389753, now seen corresponding path program 720 times [2021-06-05 03:44:55,696 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:55,696 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307630334] [2021-06-05 03:44:55,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:55,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:55,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:55,822 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:55,822 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307630334] [2021-06-05 03:44:55,822 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307630334] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:55,822 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:55,822 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:55,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102334823] [2021-06-05 03:44:55,822 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:55,822 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:55,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:55,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:55,822 INFO L87 Difference]: Start difference. First operand 5237 states and 24712 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:55,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:55,947 INFO L93 Difference]: Finished difference Result 11442 states and 51164 transitions. [2021-06-05 03:44:55,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:55,948 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:55,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:55,974 INFO L225 Difference]: With dead ends: 11442 [2021-06-05 03:44:55,974 INFO L226 Difference]: Without dead ends: 10827 [2021-06-05 03:44:55,974 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 149.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:56,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10827 states. [2021-06-05 03:44:56,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10827 to 5093. [2021-06-05 03:44:56,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5093 states, 5092 states have (on average 4.760997643362137) internal successors, (24243), 5092 states have internal predecessors, (24243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:56,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5093 states to 5093 states and 24243 transitions. [2021-06-05 03:44:56,203 INFO L78 Accepts]: Start accepts. Automaton has 5093 states and 24243 transitions. Word has length 29 [2021-06-05 03:44:56,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:56,203 INFO L482 AbstractCegarLoop]: Abstraction has 5093 states and 24243 transitions. [2021-06-05 03:44:56,203 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:56,203 INFO L276 IsEmpty]: Start isEmpty. Operand 5093 states and 24243 transitions. [2021-06-05 03:44:56,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:56,211 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:56,211 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:56,212 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable724 [2021-06-05 03:44:56,212 INFO L430 AbstractCegarLoop]: === Iteration 726 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:56,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:56,212 INFO L82 PathProgramCache]: Analyzing trace with hash 1427384489, now seen corresponding path program 721 times [2021-06-05 03:44:56,212 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:56,212 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541985713] [2021-06-05 03:44:56,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:56,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:56,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:56,346 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:56,346 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541985713] [2021-06-05 03:44:56,346 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541985713] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:56,346 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:56,347 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:56,347 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304750173] [2021-06-05 03:44:56,347 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:56,347 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:56,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:56,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:56,347 INFO L87 Difference]: Start difference. First operand 5093 states and 24243 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:56,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:56,462 INFO L93 Difference]: Finished difference Result 11649 states and 51963 transitions. [2021-06-05 03:44:56,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:56,462 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:56,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:56,490 INFO L225 Difference]: With dead ends: 11649 [2021-06-05 03:44:56,490 INFO L226 Difference]: Without dead ends: 11234 [2021-06-05 03:44:56,490 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 157.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:56,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11234 states. [2021-06-05 03:44:56,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11234 to 5265. [2021-06-05 03:44:56,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5265 states, 5264 states have (on average 4.750569908814589) internal successors, (25007), 5264 states have internal predecessors, (25007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:56,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5265 states to 5265 states and 25007 transitions. [2021-06-05 03:44:56,721 INFO L78 Accepts]: Start accepts. Automaton has 5265 states and 25007 transitions. Word has length 29 [2021-06-05 03:44:56,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:56,721 INFO L482 AbstractCegarLoop]: Abstraction has 5265 states and 25007 transitions. [2021-06-05 03:44:56,721 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:56,721 INFO L276 IsEmpty]: Start isEmpty. Operand 5265 states and 25007 transitions. [2021-06-05 03:44:56,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:56,730 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:56,730 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:56,730 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable725 [2021-06-05 03:44:56,730 INFO L430 AbstractCegarLoop]: === Iteration 727 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:56,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:56,730 INFO L82 PathProgramCache]: Analyzing trace with hash -1112762199, now seen corresponding path program 722 times [2021-06-05 03:44:56,730 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:56,730 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697443683] [2021-06-05 03:44:56,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:56,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:56,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:56,865 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:56,865 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697443683] [2021-06-05 03:44:56,865 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697443683] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:56,865 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:56,865 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:56,865 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316665623] [2021-06-05 03:44:56,865 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:56,865 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:56,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:56,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:56,866 INFO L87 Difference]: Start difference. First operand 5265 states and 25007 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:56,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:56,963 INFO L93 Difference]: Finished difference Result 11776 states and 52442 transitions. [2021-06-05 03:44:56,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:56,964 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:56,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:56,991 INFO L225 Difference]: With dead ends: 11776 [2021-06-05 03:44:56,991 INFO L226 Difference]: Without dead ends: 11154 [2021-06-05 03:44:56,991 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 141.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:57,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11154 states. [2021-06-05 03:44:57,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11154 to 5185. [2021-06-05 03:44:57,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5185 states, 5184 states have (on average 4.754436728395062) internal successors, (24647), 5184 states have internal predecessors, (24647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:57,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5185 states to 5185 states and 24647 transitions. [2021-06-05 03:44:57,221 INFO L78 Accepts]: Start accepts. Automaton has 5185 states and 24647 transitions. Word has length 29 [2021-06-05 03:44:57,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:57,221 INFO L482 AbstractCegarLoop]: Abstraction has 5185 states and 24647 transitions. [2021-06-05 03:44:57,222 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:57,222 INFO L276 IsEmpty]: Start isEmpty. Operand 5185 states and 24647 transitions. [2021-06-05 03:44:57,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:57,230 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:57,230 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:57,230 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable726 [2021-06-05 03:44:57,230 INFO L430 AbstractCegarLoop]: === Iteration 728 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:57,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:57,231 INFO L82 PathProgramCache]: Analyzing trace with hash 1207582633, now seen corresponding path program 723 times [2021-06-05 03:44:57,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:57,231 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982041006] [2021-06-05 03:44:57,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:57,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:57,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:57,373 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:57,373 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982041006] [2021-06-05 03:44:57,373 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982041006] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:57,373 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:57,373 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:57,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789595313] [2021-06-05 03:44:57,373 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:57,373 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:57,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:57,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:57,373 INFO L87 Difference]: Start difference. First operand 5185 states and 24647 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:57,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:57,489 INFO L93 Difference]: Finished difference Result 11552 states and 51521 transitions. [2021-06-05 03:44:57,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:57,490 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:57,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:57,517 INFO L225 Difference]: With dead ends: 11552 [2021-06-05 03:44:57,517 INFO L226 Difference]: Without dead ends: 11137 [2021-06-05 03:44:57,517 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 161.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:57,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11137 states. [2021-06-05 03:44:57,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11137 to 5233. [2021-06-05 03:44:57,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5233 states, 5232 states have (on average 4.744457186544342) internal successors, (24823), 5232 states have internal predecessors, (24823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:57,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5233 states to 5233 states and 24823 transitions. [2021-06-05 03:44:57,749 INFO L78 Accepts]: Start accepts. Automaton has 5233 states and 24823 transitions. Word has length 29 [2021-06-05 03:44:57,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:57,749 INFO L482 AbstractCegarLoop]: Abstraction has 5233 states and 24823 transitions. [2021-06-05 03:44:57,749 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:57,749 INFO L276 IsEmpty]: Start isEmpty. Operand 5233 states and 24823 transitions. [2021-06-05 03:44:57,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:57,758 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:57,758 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:57,758 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable727 [2021-06-05 03:44:57,758 INFO L430 AbstractCegarLoop]: === Iteration 729 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:57,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:57,759 INFO L82 PathProgramCache]: Analyzing trace with hash 1924245579, now seen corresponding path program 724 times [2021-06-05 03:44:57,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:57,759 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297941156] [2021-06-05 03:44:57,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:57,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:57,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:57,896 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:57,896 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297941156] [2021-06-05 03:44:57,896 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297941156] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:57,896 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:57,896 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:57,896 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54535435] [2021-06-05 03:44:57,896 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:57,897 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:57,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:57,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:57,897 INFO L87 Difference]: Start difference. First operand 5233 states and 24823 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:58,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:58,023 INFO L93 Difference]: Finished difference Result 11614 states and 51742 transitions. [2021-06-05 03:44:58,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:58,023 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:58,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:58,050 INFO L225 Difference]: With dead ends: 11614 [2021-06-05 03:44:58,051 INFO L226 Difference]: Without dead ends: 11089 [2021-06-05 03:44:58,051 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 160.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:58,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11089 states. [2021-06-05 03:44:58,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11089 to 5185. [2021-06-05 03:44:58,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5185 states, 5184 states have (on average 4.749807098765432) internal successors, (24623), 5184 states have internal predecessors, (24623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:58,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5185 states to 5185 states and 24623 transitions. [2021-06-05 03:44:58,287 INFO L78 Accepts]: Start accepts. Automaton has 5185 states and 24623 transitions. Word has length 29 [2021-06-05 03:44:58,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:58,287 INFO L482 AbstractCegarLoop]: Abstraction has 5185 states and 24623 transitions. [2021-06-05 03:44:58,287 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:58,287 INFO L276 IsEmpty]: Start isEmpty. Operand 5185 states and 24623 transitions. [2021-06-05 03:44:58,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:58,296 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:58,296 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:58,296 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable728 [2021-06-05 03:44:58,296 INFO L430 AbstractCegarLoop]: === Iteration 730 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:58,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:58,296 INFO L82 PathProgramCache]: Analyzing trace with hash -287496117, now seen corresponding path program 725 times [2021-06-05 03:44:58,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:58,296 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815350755] [2021-06-05 03:44:58,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:58,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:58,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:58,424 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:58,424 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815350755] [2021-06-05 03:44:58,424 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815350755] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:58,424 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:58,424 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:58,424 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402990375] [2021-06-05 03:44:58,424 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:58,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:58,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:58,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:58,424 INFO L87 Difference]: Start difference. First operand 5185 states and 24623 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:58,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:58,527 INFO L93 Difference]: Finished difference Result 11901 states and 52957 transitions. [2021-06-05 03:44:58,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:58,528 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:58,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:58,555 INFO L225 Difference]: With dead ends: 11901 [2021-06-05 03:44:58,555 INFO L226 Difference]: Without dead ends: 11359 [2021-06-05 03:44:58,555 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 134.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:58,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11359 states. [2021-06-05 03:44:58,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11359 to 5328. [2021-06-05 03:44:58,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5328 states, 5327 states have (on average 4.719729678993805) internal successors, (25142), 5327 states have internal predecessors, (25142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:58,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5328 states to 5328 states and 25142 transitions. [2021-06-05 03:44:58,792 INFO L78 Accepts]: Start accepts. Automaton has 5328 states and 25142 transitions. Word has length 29 [2021-06-05 03:44:58,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:58,792 INFO L482 AbstractCegarLoop]: Abstraction has 5328 states and 25142 transitions. [2021-06-05 03:44:58,792 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:58,792 INFO L276 IsEmpty]: Start isEmpty. Operand 5328 states and 25142 transitions. [2021-06-05 03:44:58,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:58,801 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:58,801 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:58,801 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable729 [2021-06-05 03:44:58,801 INFO L430 AbstractCegarLoop]: === Iteration 731 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:58,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:58,801 INFO L82 PathProgramCache]: Analyzing trace with hash 1964134185, now seen corresponding path program 726 times [2021-06-05 03:44:58,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:58,801 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079100910] [2021-06-05 03:44:58,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:58,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:58,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:58,928 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:58,928 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079100910] [2021-06-05 03:44:58,928 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079100910] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:58,929 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:58,929 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:58,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331605397] [2021-06-05 03:44:58,929 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:58,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:58,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:58,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:58,929 INFO L87 Difference]: Start difference. First operand 5328 states and 25142 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:59,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:59,054 INFO L93 Difference]: Finished difference Result 11836 states and 52588 transitions. [2021-06-05 03:44:59,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:59,055 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:59,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:59,082 INFO L225 Difference]: With dead ends: 11836 [2021-06-05 03:44:59,082 INFO L226 Difference]: Without dead ends: 11160 [2021-06-05 03:44:59,083 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 151.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:59,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11160 states. [2021-06-05 03:44:59,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11160 to 5129. [2021-06-05 03:44:59,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5129 states, 5128 states have (on average 4.756435257410296) internal successors, (24391), 5128 states have internal predecessors, (24391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:59,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5129 states to 5129 states and 24391 transitions. [2021-06-05 03:44:59,315 INFO L78 Accepts]: Start accepts. Automaton has 5129 states and 24391 transitions. Word has length 29 [2021-06-05 03:44:59,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:59,315 INFO L482 AbstractCegarLoop]: Abstraction has 5129 states and 24391 transitions. [2021-06-05 03:44:59,315 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:59,315 INFO L276 IsEmpty]: Start isEmpty. Operand 5129 states and 24391 transitions. [2021-06-05 03:44:59,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:59,324 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:59,324 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:59,324 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable730 [2021-06-05 03:44:59,324 INFO L430 AbstractCegarLoop]: === Iteration 732 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:59,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:59,324 INFO L82 PathProgramCache]: Analyzing trace with hash -662708951, now seen corresponding path program 727 times [2021-06-05 03:44:59,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:59,324 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925718302] [2021-06-05 03:44:59,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:59,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:44:59,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:44:59,463 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:44:59,463 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925718302] [2021-06-05 03:44:59,464 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925718302] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:44:59,464 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:44:59,464 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:44:59,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578554934] [2021-06-05 03:44:59,464 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:44:59,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:44:59,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:44:59,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:44:59,464 INFO L87 Difference]: Start difference. First operand 5129 states and 24391 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:59,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:44:59,584 INFO L93 Difference]: Finished difference Result 11598 states and 51751 transitions. [2021-06-05 03:44:59,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:44:59,584 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:44:59,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:44:59,612 INFO L225 Difference]: With dead ends: 11598 [2021-06-05 03:44:59,612 INFO L226 Difference]: Without dead ends: 11183 [2021-06-05 03:44:59,612 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 163.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:44:59,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11183 states. [2021-06-05 03:44:59,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11183 to 5249. [2021-06-05 03:44:59,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5249 states, 5248 states have (on average 4.747522865853658) internal successors, (24915), 5248 states have internal predecessors, (24915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:59,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5249 states to 5249 states and 24915 transitions. [2021-06-05 03:44:59,885 INFO L78 Accepts]: Start accepts. Automaton has 5249 states and 24915 transitions. Word has length 29 [2021-06-05 03:44:59,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:44:59,885 INFO L482 AbstractCegarLoop]: Abstraction has 5249 states and 24915 transitions. [2021-06-05 03:44:59,885 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:44:59,885 INFO L276 IsEmpty]: Start isEmpty. Operand 5249 states and 24915 transitions. [2021-06-05 03:44:59,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:44:59,894 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:44:59,894 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:44:59,894 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable731 [2021-06-05 03:44:59,894 INFO L430 AbstractCegarLoop]: === Iteration 733 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:44:59,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:44:59,895 INFO L82 PathProgramCache]: Analyzing trace with hash 1092111657, now seen corresponding path program 728 times [2021-06-05 03:44:59,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:44:59,895 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233942412] [2021-06-05 03:44:59,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:44:59,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:00,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:00,030 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:00,030 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233942412] [2021-06-05 03:45:00,030 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233942412] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:00,030 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:00,030 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:00,030 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933767901] [2021-06-05 03:45:00,031 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:00,031 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:00,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:00,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:00,031 INFO L87 Difference]: Start difference. First operand 5249 states and 24915 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:00,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:00,129 INFO L93 Difference]: Finished difference Result 11725 states and 52230 transitions. [2021-06-05 03:45:00,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:00,130 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:00,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:00,157 INFO L225 Difference]: With dead ends: 11725 [2021-06-05 03:45:00,157 INFO L226 Difference]: Without dead ends: 11103 [2021-06-05 03:45:00,157 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 142.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:00,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11103 states. [2021-06-05 03:45:00,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11103 to 5169. [2021-06-05 03:45:00,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5169 states, 5168 states have (on average 4.751354489164087) internal successors, (24555), 5168 states have internal predecessors, (24555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:00,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5169 states to 5169 states and 24555 transitions. [2021-06-05 03:45:00,385 INFO L78 Accepts]: Start accepts. Automaton has 5169 states and 24555 transitions. Word has length 29 [2021-06-05 03:45:00,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:00,385 INFO L482 AbstractCegarLoop]: Abstraction has 5169 states and 24555 transitions. [2021-06-05 03:45:00,385 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:00,385 INFO L276 IsEmpty]: Start isEmpty. Operand 5169 states and 24555 transitions. [2021-06-05 03:45:00,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:00,394 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:00,394 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:00,394 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable732 [2021-06-05 03:45:00,394 INFO L430 AbstractCegarLoop]: === Iteration 734 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:00,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:00,394 INFO L82 PathProgramCache]: Analyzing trace with hash 1744754887, now seen corresponding path program 729 times [2021-06-05 03:45:00,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:00,394 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327215388] [2021-06-05 03:45:00,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:00,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:00,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:00,533 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:00,533 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327215388] [2021-06-05 03:45:00,533 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327215388] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:00,533 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:00,533 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:00,533 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956837708] [2021-06-05 03:45:00,533 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:00,533 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:00,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:00,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:00,533 INFO L87 Difference]: Start difference. First operand 5169 states and 24555 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:00,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:00,648 INFO L93 Difference]: Finished difference Result 11499 states and 51304 transitions. [2021-06-05 03:45:00,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:00,648 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:00,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:00,675 INFO L225 Difference]: With dead ends: 11499 [2021-06-05 03:45:00,675 INFO L226 Difference]: Without dead ends: 11084 [2021-06-05 03:45:00,676 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 162.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:00,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11084 states. [2021-06-05 03:45:00,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11084 to 5217. [2021-06-05 03:45:00,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5217 states, 5216 states have (on average 4.741372699386503) internal successors, (24731), 5216 states have internal predecessors, (24731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:00,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5217 states to 5217 states and 24731 transitions. [2021-06-05 03:45:00,904 INFO L78 Accepts]: Start accepts. Automaton has 5217 states and 24731 transitions. Word has length 29 [2021-06-05 03:45:00,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:00,904 INFO L482 AbstractCegarLoop]: Abstraction has 5217 states and 24731 transitions. [2021-06-05 03:45:00,904 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:00,904 INFO L276 IsEmpty]: Start isEmpty. Operand 5217 states and 24731 transitions. [2021-06-05 03:45:00,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:00,913 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:00,913 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:00,913 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable733 [2021-06-05 03:45:00,913 INFO L430 AbstractCegarLoop]: === Iteration 735 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:00,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:00,914 INFO L82 PathProgramCache]: Analyzing trace with hash 1230073961, now seen corresponding path program 730 times [2021-06-05 03:45:00,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:00,914 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24411686] [2021-06-05 03:45:00,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:00,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:01,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:01,054 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:01,054 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24411686] [2021-06-05 03:45:01,054 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24411686] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:01,054 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:01,054 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:01,054 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458457690] [2021-06-05 03:45:01,054 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:01,054 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:01,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:01,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:01,054 INFO L87 Difference]: Start difference. First operand 5217 states and 24731 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:01,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:01,169 INFO L93 Difference]: Finished difference Result 11559 states and 51520 transitions. [2021-06-05 03:45:01,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:01,169 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:01,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:01,196 INFO L225 Difference]: With dead ends: 11559 [2021-06-05 03:45:01,196 INFO L226 Difference]: Without dead ends: 11036 [2021-06-05 03:45:01,196 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 164.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:01,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11036 states. [2021-06-05 03:45:01,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11036 to 5169. [2021-06-05 03:45:01,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5169 states, 5168 states have (on average 4.746710526315789) internal successors, (24531), 5168 states have internal predecessors, (24531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:01,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5169 states to 5169 states and 24531 transitions. [2021-06-05 03:45:01,426 INFO L78 Accepts]: Start accepts. Automaton has 5169 states and 24531 transitions. Word has length 29 [2021-06-05 03:45:01,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:01,426 INFO L482 AbstractCegarLoop]: Abstraction has 5169 states and 24531 transitions. [2021-06-05 03:45:01,426 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:01,426 INFO L276 IsEmpty]: Start isEmpty. Operand 5169 states and 24531 transitions. [2021-06-05 03:45:01,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:01,436 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:01,436 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:01,436 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable734 [2021-06-05 03:45:01,436 INFO L430 AbstractCegarLoop]: === Iteration 736 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:01,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:01,436 INFO L82 PathProgramCache]: Analyzing trace with hash 1968902249, now seen corresponding path program 731 times [2021-06-05 03:45:01,436 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:01,436 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985248640] [2021-06-05 03:45:01,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:01,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:01,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:01,566 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:01,567 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985248640] [2021-06-05 03:45:01,567 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985248640] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:01,567 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:01,567 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:01,567 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867303514] [2021-06-05 03:45:01,567 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:01,567 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:01,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:01,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:01,567 INFO L87 Difference]: Start difference. First operand 5169 states and 24531 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:01,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:01,672 INFO L93 Difference]: Finished difference Result 11815 states and 52625 transitions. [2021-06-05 03:45:01,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:01,673 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:01,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:01,700 INFO L225 Difference]: With dead ends: 11815 [2021-06-05 03:45:01,700 INFO L226 Difference]: Without dead ends: 11273 [2021-06-05 03:45:01,700 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 137.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:01,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11273 states. [2021-06-05 03:45:01,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11273 to 5279. [2021-06-05 03:45:01,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5279 states, 5278 states have (on average 4.724516862447897) internal successors, (24936), 5278 states have internal predecessors, (24936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:01,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5279 states to 5279 states and 24936 transitions. [2021-06-05 03:45:01,932 INFO L78 Accepts]: Start accepts. Automaton has 5279 states and 24936 transitions. Word has length 29 [2021-06-05 03:45:01,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:01,932 INFO L482 AbstractCegarLoop]: Abstraction has 5279 states and 24936 transitions. [2021-06-05 03:45:01,932 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:01,932 INFO L276 IsEmpty]: Start isEmpty. Operand 5279 states and 24936 transitions. [2021-06-05 03:45:01,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:01,941 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:01,941 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:01,941 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable735 [2021-06-05 03:45:01,941 INFO L430 AbstractCegarLoop]: === Iteration 737 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:01,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:01,941 INFO L82 PathProgramCache]: Analyzing trace with hash 1227950151, now seen corresponding path program 732 times [2021-06-05 03:45:01,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:01,941 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200129711] [2021-06-05 03:45:01,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:01,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:02,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:02,069 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:02,069 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200129711] [2021-06-05 03:45:02,069 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200129711] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:02,069 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:02,069 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:02,069 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49685499] [2021-06-05 03:45:02,069 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:02,069 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:02,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:02,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:02,069 INFO L87 Difference]: Start difference. First operand 5279 states and 24936 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:02,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:02,193 INFO L93 Difference]: Finished difference Result 11748 states and 52252 transitions. [2021-06-05 03:45:02,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:02,193 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:02,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:02,221 INFO L225 Difference]: With dead ends: 11748 [2021-06-05 03:45:02,221 INFO L226 Difference]: Without dead ends: 11123 [2021-06-05 03:45:02,221 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 151.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:02,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11123 states. [2021-06-05 03:45:02,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11123 to 5129. [2021-06-05 03:45:02,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5129 states, 5128 states have (on average 4.752535101404056) internal successors, (24371), 5128 states have internal predecessors, (24371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:02,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5129 states to 5129 states and 24371 transitions. [2021-06-05 03:45:02,455 INFO L78 Accepts]: Start accepts. Automaton has 5129 states and 24371 transitions. Word has length 29 [2021-06-05 03:45:02,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:02,455 INFO L482 AbstractCegarLoop]: Abstraction has 5129 states and 24371 transitions. [2021-06-05 03:45:02,455 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:02,455 INFO L276 IsEmpty]: Start isEmpty. Operand 5129 states and 24371 transitions. [2021-06-05 03:45:02,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:02,463 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:02,463 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:02,464 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable736 [2021-06-05 03:45:02,464 INFO L430 AbstractCegarLoop]: === Iteration 738 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:02,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:02,464 INFO L82 PathProgramCache]: Analyzing trace with hash 598282183, now seen corresponding path program 733 times [2021-06-05 03:45:02,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:02,464 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530082458] [2021-06-05 03:45:02,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:02,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:02,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:02,603 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:02,603 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530082458] [2021-06-05 03:45:02,603 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530082458] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:02,603 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:02,603 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:02,603 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454509343] [2021-06-05 03:45:02,603 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:02,603 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:02,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:02,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:02,603 INFO L87 Difference]: Start difference. First operand 5129 states and 24371 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:02,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:02,723 INFO L93 Difference]: Finished difference Result 11356 states and 50703 transitions. [2021-06-05 03:45:02,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:02,724 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:02,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:02,751 INFO L225 Difference]: With dead ends: 11356 [2021-06-05 03:45:02,751 INFO L226 Difference]: Without dead ends: 10941 [2021-06-05 03:45:02,751 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 163.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:02,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10941 states. [2021-06-05 03:45:02,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10941 to 5201. [2021-06-05 03:45:02,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5201 states, 5200 states have (on average 4.744423076923077) internal successors, (24671), 5200 states have internal predecessors, (24671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:02,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5201 states to 5201 states and 24671 transitions. [2021-06-05 03:45:02,985 INFO L78 Accepts]: Start accepts. Automaton has 5201 states and 24671 transitions. Word has length 29 [2021-06-05 03:45:02,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:02,985 INFO L482 AbstractCegarLoop]: Abstraction has 5201 states and 24671 transitions. [2021-06-05 03:45:02,985 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:02,985 INFO L276 IsEmpty]: Start isEmpty. Operand 5201 states and 24671 transitions. [2021-06-05 03:45:02,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:02,994 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:02,994 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:02,994 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable737 [2021-06-05 03:45:02,994 INFO L430 AbstractCegarLoop]: === Iteration 739 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:02,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:02,995 INFO L82 PathProgramCache]: Analyzing trace with hash 1314945129, now seen corresponding path program 734 times [2021-06-05 03:45:02,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:02,995 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464724137] [2021-06-05 03:45:02,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:02,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:03,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:03,132 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:03,132 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464724137] [2021-06-05 03:45:03,132 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464724137] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:03,132 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:03,132 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:03,132 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620640384] [2021-06-05 03:45:03,133 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:03,133 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:03,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:03,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:03,133 INFO L87 Difference]: Start difference. First operand 5201 states and 24671 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:03,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:03,252 INFO L93 Difference]: Finished difference Result 11418 states and 50924 transitions. [2021-06-05 03:45:03,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:03,252 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:03,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:03,281 INFO L225 Difference]: With dead ends: 11418 [2021-06-05 03:45:03,281 INFO L226 Difference]: Without dead ends: 10893 [2021-06-05 03:45:03,281 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 161.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:03,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10893 states. [2021-06-05 03:45:03,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10893 to 5153. [2021-06-05 03:45:03,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 5152 states have (on average 4.749805900621118) internal successors, (24471), 5152 states have internal predecessors, (24471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:03,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 24471 transitions. [2021-06-05 03:45:03,533 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 24471 transitions. Word has length 29 [2021-06-05 03:45:03,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:03,533 INFO L482 AbstractCegarLoop]: Abstraction has 5153 states and 24471 transitions. [2021-06-05 03:45:03,533 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:03,533 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 24471 transitions. [2021-06-05 03:45:03,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:03,543 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:03,543 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:03,543 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable738 [2021-06-05 03:45:03,543 INFO L430 AbstractCegarLoop]: === Iteration 740 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:03,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:03,544 INFO L82 PathProgramCache]: Analyzing trace with hash -575677527, now seen corresponding path program 735 times [2021-06-05 03:45:03,544 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:03,544 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166643004] [2021-06-05 03:45:03,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:03,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:03,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:03,714 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:03,714 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166643004] [2021-06-05 03:45:03,714 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166643004] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:03,714 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:03,714 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:03,714 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695232484] [2021-06-05 03:45:03,714 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:03,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:03,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:03,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:03,715 INFO L87 Difference]: Start difference. First operand 5153 states and 24471 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:03,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:03,865 INFO L93 Difference]: Finished difference Result 11354 states and 50674 transitions. [2021-06-05 03:45:03,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:03,866 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:03,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:03,900 INFO L225 Difference]: With dead ends: 11354 [2021-06-05 03:45:03,900 INFO L226 Difference]: Without dead ends: 10939 [2021-06-05 03:45:03,900 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 197.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:04,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10939 states. [2021-06-05 03:45:04,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10939 to 5201. [2021-06-05 03:45:04,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5201 states, 5200 states have (on average 4.739807692307692) internal successors, (24647), 5200 states have internal predecessors, (24647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:04,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5201 states to 5201 states and 24647 transitions. [2021-06-05 03:45:04,167 INFO L78 Accepts]: Start accepts. Automaton has 5201 states and 24647 transitions. Word has length 29 [2021-06-05 03:45:04,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:04,167 INFO L482 AbstractCegarLoop]: Abstraction has 5201 states and 24647 transitions. [2021-06-05 03:45:04,167 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:04,167 INFO L276 IsEmpty]: Start isEmpty. Operand 5201 states and 24647 transitions. [2021-06-05 03:45:04,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:04,176 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:04,176 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:04,176 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable739 [2021-06-05 03:45:04,176 INFO L430 AbstractCegarLoop]: === Iteration 741 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:04,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:04,176 INFO L82 PathProgramCache]: Analyzing trace with hash 453887849, now seen corresponding path program 736 times [2021-06-05 03:45:04,176 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:04,176 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38183863] [2021-06-05 03:45:04,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:04,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:04,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:04,320 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:04,320 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38183863] [2021-06-05 03:45:04,320 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38183863] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:04,320 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:04,320 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:04,320 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686586231] [2021-06-05 03:45:04,320 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:04,320 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:04,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:04,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:04,320 INFO L87 Difference]: Start difference. First operand 5201 states and 24647 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:04,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:04,447 INFO L93 Difference]: Finished difference Result 11414 states and 50890 transitions. [2021-06-05 03:45:04,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:04,447 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:04,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:04,475 INFO L225 Difference]: With dead ends: 11414 [2021-06-05 03:45:04,475 INFO L226 Difference]: Without dead ends: 10891 [2021-06-05 03:45:04,475 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 167.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:04,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10891 states. [2021-06-05 03:45:04,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10891 to 5153. [2021-06-05 03:45:04,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 5152 states have (on average 4.74514751552795) internal successors, (24447), 5152 states have internal predecessors, (24447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:04,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 24447 transitions. [2021-06-05 03:45:04,711 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 24447 transitions. Word has length 29 [2021-06-05 03:45:04,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:04,711 INFO L482 AbstractCegarLoop]: Abstraction has 5153 states and 24447 transitions. [2021-06-05 03:45:04,711 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:04,711 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 24447 transitions. [2021-06-05 03:45:04,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:04,720 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:04,720 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:04,720 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable740 [2021-06-05 03:45:04,720 INFO L430 AbstractCegarLoop]: === Iteration 742 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:04,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:04,720 INFO L82 PathProgramCache]: Analyzing trace with hash 627814283, now seen corresponding path program 737 times [2021-06-05 03:45:04,720 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:04,720 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245602464] [2021-06-05 03:45:04,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:04,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:04,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:04,849 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:04,849 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245602464] [2021-06-05 03:45:04,849 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245602464] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:04,849 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:04,849 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:04,849 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697513143] [2021-06-05 03:45:04,849 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:04,849 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:04,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:04,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:04,850 INFO L87 Difference]: Start difference. First operand 5153 states and 24447 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:04,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:04,969 INFO L93 Difference]: Finished difference Result 11508 states and 51335 transitions. [2021-06-05 03:45:04,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:04,970 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:04,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:04,998 INFO L225 Difference]: With dead ends: 11508 [2021-06-05 03:45:04,998 INFO L226 Difference]: Without dead ends: 11031 [2021-06-05 03:45:04,998 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 153.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:05,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11031 states. [2021-06-05 03:45:05,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11031 to 5231. [2021-06-05 03:45:05,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5231 states, 5230 states have (on average 4.730401529636711) internal successors, (24740), 5230 states have internal predecessors, (24740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:05,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5231 states to 5231 states and 24740 transitions. [2021-06-05 03:45:05,234 INFO L78 Accepts]: Start accepts. Automaton has 5231 states and 24740 transitions. Word has length 29 [2021-06-05 03:45:05,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:05,234 INFO L482 AbstractCegarLoop]: Abstraction has 5231 states and 24740 transitions. [2021-06-05 03:45:05,234 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:05,234 INFO L276 IsEmpty]: Start isEmpty. Operand 5231 states and 24740 transitions. [2021-06-05 03:45:05,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:05,243 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:05,243 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:05,243 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable741 [2021-06-05 03:45:05,243 INFO L430 AbstractCegarLoop]: === Iteration 743 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:05,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:05,243 INFO L82 PathProgramCache]: Analyzing trace with hash -764330263, now seen corresponding path program 738 times [2021-06-05 03:45:05,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:05,244 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035075197] [2021-06-05 03:45:05,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:05,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:05,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:05,393 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:05,393 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035075197] [2021-06-05 03:45:05,393 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035075197] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:05,393 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:05,393 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:05,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474328188] [2021-06-05 03:45:05,394 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:05,394 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:05,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:05,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:05,394 INFO L87 Difference]: Start difference. First operand 5231 states and 24740 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:05,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:05,530 INFO L93 Difference]: Finished difference Result 11506 states and 51252 transitions. [2021-06-05 03:45:05,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:05,530 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:05,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:05,557 INFO L225 Difference]: With dead ends: 11506 [2021-06-05 03:45:05,557 INFO L226 Difference]: Without dead ends: 10929 [2021-06-05 03:45:05,557 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 161.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:05,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10929 states. [2021-06-05 03:45:05,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10929 to 5129. [2021-06-05 03:45:05,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5129 states, 5128 states have (on average 4.750195007800312) internal successors, (24359), 5128 states have internal predecessors, (24359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:05,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5129 states to 5129 states and 24359 transitions. [2021-06-05 03:45:05,796 INFO L78 Accepts]: Start accepts. Automaton has 5129 states and 24359 transitions. Word has length 29 [2021-06-05 03:45:05,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:05,796 INFO L482 AbstractCegarLoop]: Abstraction has 5129 states and 24359 transitions. [2021-06-05 03:45:05,796 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:05,796 INFO L276 IsEmpty]: Start isEmpty. Operand 5129 states and 24359 transitions. [2021-06-05 03:45:05,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:05,805 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:05,805 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:05,805 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable742 [2021-06-05 03:45:05,805 INFO L430 AbstractCegarLoop]: === Iteration 744 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:05,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:05,805 INFO L82 PathProgramCache]: Analyzing trace with hash 1299996555, now seen corresponding path program 739 times [2021-06-05 03:45:05,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:05,805 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247606505] [2021-06-05 03:45:05,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:05,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:05,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:05,927 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:05,927 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247606505] [2021-06-05 03:45:05,927 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247606505] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:05,927 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:05,927 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:05,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131447230] [2021-06-05 03:45:05,927 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:05,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:05,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:05,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:05,927 INFO L87 Difference]: Start difference. First operand 5129 states and 24359 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:06,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:06,046 INFO L93 Difference]: Finished difference Result 12052 states and 53648 transitions. [2021-06-05 03:45:06,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:06,046 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:06,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:06,075 INFO L225 Difference]: With dead ends: 12052 [2021-06-05 03:45:06,075 INFO L226 Difference]: Without dead ends: 11510 [2021-06-05 03:45:06,075 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:06,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11510 states. [2021-06-05 03:45:06,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11510 to 5359. [2021-06-05 03:45:06,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5359 states, 5358 states have (on average 4.717245240761478) internal successors, (25275), 5358 states have internal predecessors, (25275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:06,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5359 states to 5359 states and 25275 transitions. [2021-06-05 03:45:06,317 INFO L78 Accepts]: Start accepts. Automaton has 5359 states and 25275 transitions. Word has length 29 [2021-06-05 03:45:06,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:06,317 INFO L482 AbstractCegarLoop]: Abstraction has 5359 states and 25275 transitions. [2021-06-05 03:45:06,317 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:06,317 INFO L276 IsEmpty]: Start isEmpty. Operand 5359 states and 25275 transitions. [2021-06-05 03:45:06,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:06,326 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:06,326 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:06,326 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable743 [2021-06-05 03:45:06,327 INFO L430 AbstractCegarLoop]: === Iteration 745 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:06,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:06,327 INFO L82 PathProgramCache]: Analyzing trace with hash -743340439, now seen corresponding path program 740 times [2021-06-05 03:45:06,327 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:06,327 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929528671] [2021-06-05 03:45:06,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:06,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:06,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:06,449 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:06,449 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929528671] [2021-06-05 03:45:06,449 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929528671] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:06,449 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:06,449 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:06,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865395654] [2021-06-05 03:45:06,449 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:06,449 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:06,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:06,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:06,449 INFO L87 Difference]: Start difference. First operand 5359 states and 25275 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:06,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:06,564 INFO L93 Difference]: Finished difference Result 11987 states and 53279 transitions. [2021-06-05 03:45:06,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:06,564 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:06,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:06,595 INFO L225 Difference]: With dead ends: 11987 [2021-06-05 03:45:06,595 INFO L226 Difference]: Without dead ends: 11367 [2021-06-05 03:45:06,595 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 145.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:06,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11367 states. [2021-06-05 03:45:06,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11367 to 5216. [2021-06-05 03:45:06,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5216 states, 5215 states have (on average 4.733461169702781) internal successors, (24685), 5215 states have internal predecessors, (24685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:06,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5216 states to 5216 states and 24685 transitions. [2021-06-05 03:45:06,838 INFO L78 Accepts]: Start accepts. Automaton has 5216 states and 24685 transitions. Word has length 29 [2021-06-05 03:45:06,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:06,838 INFO L482 AbstractCegarLoop]: Abstraction has 5216 states and 24685 transitions. [2021-06-05 03:45:06,839 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:06,839 INFO L276 IsEmpty]: Start isEmpty. Operand 5216 states and 24685 transitions. [2021-06-05 03:45:06,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:06,848 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:06,848 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:06,848 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable744 [2021-06-05 03:45:06,848 INFO L430 AbstractCegarLoop]: === Iteration 746 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:06,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:06,848 INFO L82 PathProgramCache]: Analyzing trace with hash -816083095, now seen corresponding path program 741 times [2021-06-05 03:45:06,848 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:06,848 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255908529] [2021-06-05 03:45:06,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:06,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:06,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:06,969 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:06,969 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255908529] [2021-06-05 03:45:06,969 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255908529] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:06,969 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:06,969 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:06,970 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791996382] [2021-06-05 03:45:06,970 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:06,970 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:06,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:06,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:06,970 INFO L87 Difference]: Start difference. First operand 5216 states and 24685 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:07,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:07,066 INFO L93 Difference]: Finished difference Result 12017 states and 53457 transitions. [2021-06-05 03:45:07,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:07,066 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:07,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:07,095 INFO L225 Difference]: With dead ends: 12017 [2021-06-05 03:45:07,095 INFO L226 Difference]: Without dead ends: 11475 [2021-06-05 03:45:07,095 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:07,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11475 states. [2021-06-05 03:45:07,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11475 to 5326. [2021-06-05 03:45:07,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5326 states, 5325 states have (on average 4.711737089201878) internal successors, (25090), 5325 states have internal predecessors, (25090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:07,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5326 states to 5326 states and 25090 transitions. [2021-06-05 03:45:07,330 INFO L78 Accepts]: Start accepts. Automaton has 5326 states and 25090 transitions. Word has length 29 [2021-06-05 03:45:07,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:07,331 INFO L482 AbstractCegarLoop]: Abstraction has 5326 states and 25090 transitions. [2021-06-05 03:45:07,331 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:07,331 INFO L276 IsEmpty]: Start isEmpty. Operand 5326 states and 25090 transitions. [2021-06-05 03:45:07,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:07,340 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:07,340 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:07,340 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable745 [2021-06-05 03:45:07,340 INFO L430 AbstractCegarLoop]: === Iteration 747 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:07,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:07,340 INFO L82 PathProgramCache]: Analyzing trace with hash -260294807, now seen corresponding path program 742 times [2021-06-05 03:45:07,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:07,340 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43289302] [2021-06-05 03:45:07,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:07,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:07,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:07,460 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:07,460 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43289302] [2021-06-05 03:45:07,460 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43289302] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:07,460 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:07,460 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:07,460 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350928826] [2021-06-05 03:45:07,460 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:07,460 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:07,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:07,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:07,460 INFO L87 Difference]: Start difference. First operand 5326 states and 25090 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:07,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:07,583 INFO L93 Difference]: Finished difference Result 11950 states and 53084 transitions. [2021-06-05 03:45:07,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:07,583 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:07,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:07,612 INFO L225 Difference]: With dead ends: 11950 [2021-06-05 03:45:07,612 INFO L226 Difference]: Without dead ends: 11365 [2021-06-05 03:45:07,612 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 143.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:07,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11365 states. [2021-06-05 03:45:07,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11365 to 5216. [2021-06-05 03:45:07,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5216 states, 5215 states have (on average 4.722914669223394) internal successors, (24630), 5215 states have internal predecessors, (24630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:07,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5216 states to 5216 states and 24630 transitions. [2021-06-05 03:45:07,847 INFO L78 Accepts]: Start accepts. Automaton has 5216 states and 24630 transitions. Word has length 29 [2021-06-05 03:45:07,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:07,847 INFO L482 AbstractCegarLoop]: Abstraction has 5216 states and 24630 transitions. [2021-06-05 03:45:07,847 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:07,847 INFO L276 IsEmpty]: Start isEmpty. Operand 5216 states and 24630 transitions. [2021-06-05 03:45:07,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:07,856 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:07,856 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:07,856 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable746 [2021-06-05 03:45:07,856 INFO L430 AbstractCegarLoop]: === Iteration 748 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:07,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:07,856 INFO L82 PathProgramCache]: Analyzing trace with hash 166264519, now seen corresponding path program 743 times [2021-06-05 03:45:07,856 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:07,856 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743484444] [2021-06-05 03:45:07,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:07,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:07,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:07,976 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:07,976 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743484444] [2021-06-05 03:45:07,976 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743484444] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:07,976 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:07,976 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:07,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058624678] [2021-06-05 03:45:07,976 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:07,976 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:07,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:07,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:07,977 INFO L87 Difference]: Start difference. First operand 5216 states and 24630 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:08,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:08,092 INFO L93 Difference]: Finished difference Result 11855 states and 52742 transitions. [2021-06-05 03:45:08,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:08,093 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:08,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:08,121 INFO L225 Difference]: With dead ends: 11855 [2021-06-05 03:45:08,121 INFO L226 Difference]: Without dead ends: 11378 [2021-06-05 03:45:08,121 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 144.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:08,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11378 states. [2021-06-05 03:45:08,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11378 to 5294. [2021-06-05 03:45:08,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5294 states, 5293 states have (on average 4.708671830719819) internal successors, (24923), 5293 states have internal predecessors, (24923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:08,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5294 states to 5294 states and 24923 transitions. [2021-06-05 03:45:08,355 INFO L78 Accepts]: Start accepts. Automaton has 5294 states and 24923 transitions. Word has length 29 [2021-06-05 03:45:08,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:08,355 INFO L482 AbstractCegarLoop]: Abstraction has 5294 states and 24923 transitions. [2021-06-05 03:45:08,355 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:08,355 INFO L276 IsEmpty]: Start isEmpty. Operand 5294 states and 24923 transitions. [2021-06-05 03:45:08,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:08,364 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:08,364 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:08,364 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable747 [2021-06-05 03:45:08,364 INFO L430 AbstractCegarLoop]: === Iteration 749 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:08,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:08,364 INFO L82 PathProgramCache]: Analyzing trace with hash -40543447, now seen corresponding path program 744 times [2021-06-05 03:45:08,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:08,364 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247484006] [2021-06-05 03:45:08,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:08,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:08,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:08,484 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:08,484 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247484006] [2021-06-05 03:45:08,484 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247484006] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:08,484 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:08,484 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:08,484 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49966488] [2021-06-05 03:45:08,484 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:08,484 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:08,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:08,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:08,484 INFO L87 Difference]: Start difference. First operand 5294 states and 24923 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:08,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:08,603 INFO L93 Difference]: Finished difference Result 11853 states and 52659 transitions. [2021-06-05 03:45:08,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:08,603 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:08,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:08,631 INFO L225 Difference]: With dead ends: 11853 [2021-06-05 03:45:08,631 INFO L226 Difference]: Without dead ends: 11177 [2021-06-05 03:45:08,631 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 143.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:08,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11177 states. [2021-06-05 03:45:08,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11177 to 5093. [2021-06-05 03:45:08,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5093 states, 5092 states have (on average 4.757855459544383) internal successors, (24227), 5092 states have internal predecessors, (24227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:08,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5093 states to 5093 states and 24227 transitions. [2021-06-05 03:45:08,862 INFO L78 Accepts]: Start accepts. Automaton has 5093 states and 24227 transitions. Word has length 29 [2021-06-05 03:45:08,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:08,862 INFO L482 AbstractCegarLoop]: Abstraction has 5093 states and 24227 transitions. [2021-06-05 03:45:08,863 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:08,863 INFO L276 IsEmpty]: Start isEmpty. Operand 5093 states and 24227 transitions. [2021-06-05 03:45:08,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:08,871 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:08,871 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:08,871 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable748 [2021-06-05 03:45:08,871 INFO L430 AbstractCegarLoop]: === Iteration 750 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:08,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:08,871 INFO L82 PathProgramCache]: Analyzing trace with hash 684954571, now seen corresponding path program 745 times [2021-06-05 03:45:08,871 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:08,872 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254463784] [2021-06-05 03:45:08,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:08,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:09,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:09,007 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:09,007 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254463784] [2021-06-05 03:45:09,007 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254463784] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:09,007 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:09,007 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:09,007 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483932875] [2021-06-05 03:45:09,008 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:09,008 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:09,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:09,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:09,008 INFO L87 Difference]: Start difference. First operand 5093 states and 24227 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:09,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:09,138 INFO L93 Difference]: Finished difference Result 11454 states and 51040 transitions. [2021-06-05 03:45:09,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:09,138 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:09,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:09,165 INFO L225 Difference]: With dead ends: 11454 [2021-06-05 03:45:09,166 INFO L226 Difference]: Without dead ends: 11039 [2021-06-05 03:45:09,166 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 159.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:09,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11039 states. [2021-06-05 03:45:09,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11039 to 5253. [2021-06-05 03:45:09,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5253 states, 5252 states have (on average 4.7484767707539985) internal successors, (24939), 5252 states have internal predecessors, (24939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:09,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5253 states to 5253 states and 24939 transitions. [2021-06-05 03:45:09,442 INFO L78 Accepts]: Start accepts. Automaton has 5253 states and 24939 transitions. Word has length 29 [2021-06-05 03:45:09,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:09,442 INFO L482 AbstractCegarLoop]: Abstraction has 5253 states and 24939 transitions. [2021-06-05 03:45:09,442 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:09,442 INFO L276 IsEmpty]: Start isEmpty. Operand 5253 states and 24939 transitions. [2021-06-05 03:45:09,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:09,450 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:09,451 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:09,451 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable749 [2021-06-05 03:45:09,451 INFO L430 AbstractCegarLoop]: === Iteration 751 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:09,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:09,451 INFO L82 PathProgramCache]: Analyzing trace with hash -1855192117, now seen corresponding path program 746 times [2021-06-05 03:45:09,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:09,451 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306388777] [2021-06-05 03:45:09,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:09,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:09,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:09,583 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:09,583 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306388777] [2021-06-05 03:45:09,583 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306388777] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:09,583 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:09,583 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:09,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172278381] [2021-06-05 03:45:09,583 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:09,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:09,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:09,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:09,584 INFO L87 Difference]: Start difference. First operand 5253 states and 24939 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:09,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:09,697 INFO L93 Difference]: Finished difference Result 11581 states and 51519 transitions. [2021-06-05 03:45:09,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:09,697 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:09,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:09,725 INFO L225 Difference]: With dead ends: 11581 [2021-06-05 03:45:09,725 INFO L226 Difference]: Without dead ends: 10959 [2021-06-05 03:45:09,725 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 139.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:09,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10959 states. [2021-06-05 03:45:09,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10959 to 5173. [2021-06-05 03:45:09,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5173 states, 5172 states have (on average 4.752320185614849) internal successors, (24579), 5172 states have internal predecessors, (24579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:09,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5173 states to 5173 states and 24579 transitions. [2021-06-05 03:45:09,954 INFO L78 Accepts]: Start accepts. Automaton has 5173 states and 24579 transitions. Word has length 29 [2021-06-05 03:45:09,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:09,954 INFO L482 AbstractCegarLoop]: Abstraction has 5173 states and 24579 transitions. [2021-06-05 03:45:09,954 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:09,954 INFO L276 IsEmpty]: Start isEmpty. Operand 5173 states and 24579 transitions. [2021-06-05 03:45:09,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:09,963 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:09,963 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:09,963 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable750 [2021-06-05 03:45:09,963 INFO L430 AbstractCegarLoop]: === Iteration 752 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:09,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:09,963 INFO L82 PathProgramCache]: Analyzing trace with hash 465152715, now seen corresponding path program 747 times [2021-06-05 03:45:09,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:09,963 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071861442] [2021-06-05 03:45:09,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:09,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:10,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:10,095 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:10,095 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071861442] [2021-06-05 03:45:10,095 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071861442] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:10,095 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:10,095 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:10,096 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166151448] [2021-06-05 03:45:10,096 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:10,096 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:10,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:10,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:10,096 INFO L87 Difference]: Start difference. First operand 5173 states and 24579 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:10,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:10,224 INFO L93 Difference]: Finished difference Result 11357 states and 50598 transitions. [2021-06-05 03:45:10,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:10,224 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:10,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:10,250 INFO L225 Difference]: With dead ends: 11357 [2021-06-05 03:45:10,250 INFO L226 Difference]: Without dead ends: 10942 [2021-06-05 03:45:10,251 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 164.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:10,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10942 states. [2021-06-05 03:45:10,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10942 to 5221. [2021-06-05 03:45:10,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5221 states, 5220 states have (on average 4.742337164750958) internal successors, (24755), 5220 states have internal predecessors, (24755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:10,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5221 states to 5221 states and 24755 transitions. [2021-06-05 03:45:10,478 INFO L78 Accepts]: Start accepts. Automaton has 5221 states and 24755 transitions. Word has length 29 [2021-06-05 03:45:10,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:10,478 INFO L482 AbstractCegarLoop]: Abstraction has 5221 states and 24755 transitions. [2021-06-05 03:45:10,479 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:10,479 INFO L276 IsEmpty]: Start isEmpty. Operand 5221 states and 24755 transitions. [2021-06-05 03:45:10,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:10,487 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:10,487 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:10,487 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable751 [2021-06-05 03:45:10,487 INFO L430 AbstractCegarLoop]: === Iteration 753 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:10,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:10,488 INFO L82 PathProgramCache]: Analyzing trace with hash 1181815661, now seen corresponding path program 748 times [2021-06-05 03:45:10,488 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:10,488 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94615112] [2021-06-05 03:45:10,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:10,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:10,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:10,619 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:10,619 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94615112] [2021-06-05 03:45:10,620 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94615112] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:10,620 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:10,620 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:10,620 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602157652] [2021-06-05 03:45:10,620 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:10,620 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:10,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:10,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:10,620 INFO L87 Difference]: Start difference. First operand 5221 states and 24755 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:10,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:10,738 INFO L93 Difference]: Finished difference Result 11419 states and 50819 transitions. [2021-06-05 03:45:10,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:10,738 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:10,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:10,765 INFO L225 Difference]: With dead ends: 11419 [2021-06-05 03:45:10,765 INFO L226 Difference]: Without dead ends: 10894 [2021-06-05 03:45:10,765 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 157.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:10,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10894 states. [2021-06-05 03:45:10,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10894 to 5173. [2021-06-05 03:45:10,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5173 states, 5172 states have (on average 4.747679814385151) internal successors, (24555), 5172 states have internal predecessors, (24555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:10,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5173 states to 5173 states and 24555 transitions. [2021-06-05 03:45:10,991 INFO L78 Accepts]: Start accepts. Automaton has 5173 states and 24555 transitions. Word has length 29 [2021-06-05 03:45:10,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:10,991 INFO L482 AbstractCegarLoop]: Abstraction has 5173 states and 24555 transitions. [2021-06-05 03:45:10,991 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:10,991 INFO L276 IsEmpty]: Start isEmpty. Operand 5173 states and 24555 transitions. [2021-06-05 03:45:10,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:10,999 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:10,999 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:10,999 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable752 [2021-06-05 03:45:10,999 INFO L430 AbstractCegarLoop]: === Iteration 754 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:11,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:11,000 INFO L82 PathProgramCache]: Analyzing trace with hash -1029926035, now seen corresponding path program 749 times [2021-06-05 03:45:11,000 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:11,000 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087202328] [2021-06-05 03:45:11,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:11,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:11,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:11,123 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:11,123 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087202328] [2021-06-05 03:45:11,123 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087202328] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:11,124 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:11,124 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:11,124 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088282508] [2021-06-05 03:45:11,124 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:11,124 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:11,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:11,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:11,124 INFO L87 Difference]: Start difference. First operand 5173 states and 24555 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:11,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:11,229 INFO L93 Difference]: Finished difference Result 11706 states and 52034 transitions. [2021-06-05 03:45:11,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:11,229 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:11,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:11,257 INFO L225 Difference]: With dead ends: 11706 [2021-06-05 03:45:11,258 INFO L226 Difference]: Without dead ends: 11164 [2021-06-05 03:45:11,258 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 131.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:11,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11164 states. [2021-06-05 03:45:11,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11164 to 5316. [2021-06-05 03:45:11,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5316 states, 5315 states have (on average 4.717591721542804) internal successors, (25074), 5315 states have internal predecessors, (25074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:11,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5316 states to 5316 states and 25074 transitions. [2021-06-05 03:45:11,489 INFO L78 Accepts]: Start accepts. Automaton has 5316 states and 25074 transitions. Word has length 29 [2021-06-05 03:45:11,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:11,489 INFO L482 AbstractCegarLoop]: Abstraction has 5316 states and 25074 transitions. [2021-06-05 03:45:11,489 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:11,489 INFO L276 IsEmpty]: Start isEmpty. Operand 5316 states and 25074 transitions. [2021-06-05 03:45:11,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:11,497 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:11,498 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:11,498 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable753 [2021-06-05 03:45:11,498 INFO L430 AbstractCegarLoop]: === Iteration 755 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:11,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:11,498 INFO L82 PathProgramCache]: Analyzing trace with hash 1221704267, now seen corresponding path program 750 times [2021-06-05 03:45:11,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:11,498 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691206897] [2021-06-05 03:45:11,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:11,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:11,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:11,621 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:11,621 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691206897] [2021-06-05 03:45:11,621 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691206897] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:11,621 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:11,621 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:11,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644188303] [2021-06-05 03:45:11,621 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:11,621 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:11,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:11,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:11,621 INFO L87 Difference]: Start difference. First operand 5316 states and 25074 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:11,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:11,740 INFO L93 Difference]: Finished difference Result 11641 states and 51665 transitions. [2021-06-05 03:45:11,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:11,741 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:11,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:11,767 INFO L225 Difference]: With dead ends: 11641 [2021-06-05 03:45:11,767 INFO L226 Difference]: Without dead ends: 10965 [2021-06-05 03:45:11,767 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 147.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:11,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10965 states. [2021-06-05 03:45:11,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10965 to 5117. [2021-06-05 03:45:11,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.755082095387021) internal successors, (24327), 5116 states have internal predecessors, (24327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:11,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24327 transitions. [2021-06-05 03:45:11,995 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24327 transitions. Word has length 29 [2021-06-05 03:45:11,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:11,995 INFO L482 AbstractCegarLoop]: Abstraction has 5117 states and 24327 transitions. [2021-06-05 03:45:11,995 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:11,996 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24327 transitions. [2021-06-05 03:45:12,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:12,004 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:12,004 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:12,004 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable754 [2021-06-05 03:45:12,004 INFO L430 AbstractCegarLoop]: === Iteration 756 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:12,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:12,004 INFO L82 PathProgramCache]: Analyzing trace with hash -123578293, now seen corresponding path program 751 times [2021-06-05 03:45:12,004 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:12,004 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69524115] [2021-06-05 03:45:12,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:12,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:12,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:12,135 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:12,135 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69524115] [2021-06-05 03:45:12,135 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69524115] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:12,135 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:12,135 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:12,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849430588] [2021-06-05 03:45:12,136 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:12,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:12,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:12,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:12,136 INFO L87 Difference]: Start difference. First operand 5117 states and 24327 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:12,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:12,270 INFO L93 Difference]: Finished difference Result 11289 states and 50297 transitions. [2021-06-05 03:45:12,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:12,270 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:12,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:12,297 INFO L225 Difference]: With dead ends: 11289 [2021-06-05 03:45:12,297 INFO L226 Difference]: Without dead ends: 10874 [2021-06-05 03:45:12,297 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 155.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:12,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10874 states. [2021-06-05 03:45:12,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10874 to 5229. [2021-06-05 03:45:12,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5229 states, 5228 states have (on average 4.745026778882938) internal successors, (24807), 5228 states have internal predecessors, (24807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:12,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5229 states to 5229 states and 24807 transitions. [2021-06-05 03:45:12,537 INFO L78 Accepts]: Start accepts. Automaton has 5229 states and 24807 transitions. Word has length 29 [2021-06-05 03:45:12,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:12,537 INFO L482 AbstractCegarLoop]: Abstraction has 5229 states and 24807 transitions. [2021-06-05 03:45:12,537 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:12,537 INFO L276 IsEmpty]: Start isEmpty. Operand 5229 states and 24807 transitions. [2021-06-05 03:45:12,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:12,546 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:12,546 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:12,546 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable755 [2021-06-05 03:45:12,546 INFO L430 AbstractCegarLoop]: === Iteration 757 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:12,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:12,546 INFO L82 PathProgramCache]: Analyzing trace with hash 1631242315, now seen corresponding path program 752 times [2021-06-05 03:45:12,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:12,547 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483138510] [2021-06-05 03:45:12,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:12,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:12,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:12,678 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:12,678 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483138510] [2021-06-05 03:45:12,678 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483138510] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:12,678 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:12,678 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:12,678 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144013625] [2021-06-05 03:45:12,678 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:12,678 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:12,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:12,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:12,678 INFO L87 Difference]: Start difference. First operand 5229 states and 24807 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:12,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:12,784 INFO L93 Difference]: Finished difference Result 11416 states and 50776 transitions. [2021-06-05 03:45:12,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:12,785 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:12,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:12,813 INFO L225 Difference]: With dead ends: 11416 [2021-06-05 03:45:12,813 INFO L226 Difference]: Without dead ends: 10794 [2021-06-05 03:45:12,813 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 138.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:12,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10794 states. [2021-06-05 03:45:13,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10794 to 5149. [2021-06-05 03:45:13,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5149 states, 5148 states have (on average 4.7503885003885005) internal successors, (24455), 5148 states have internal predecessors, (24455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:13,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5149 states to 5149 states and 24455 transitions. [2021-06-05 03:45:13,046 INFO L78 Accepts]: Start accepts. Automaton has 5149 states and 24455 transitions. Word has length 29 [2021-06-05 03:45:13,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:13,046 INFO L482 AbstractCegarLoop]: Abstraction has 5149 states and 24455 transitions. [2021-06-05 03:45:13,046 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:13,046 INFO L276 IsEmpty]: Start isEmpty. Operand 5149 states and 24455 transitions. [2021-06-05 03:45:13,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:13,055 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:13,055 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:13,055 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable756 [2021-06-05 03:45:13,055 INFO L430 AbstractCegarLoop]: === Iteration 758 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:13,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:13,055 INFO L82 PathProgramCache]: Analyzing trace with hash -38790295, now seen corresponding path program 753 times [2021-06-05 03:45:13,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:13,055 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385736172] [2021-06-05 03:45:13,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:13,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:13,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:13,180 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:13,180 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385736172] [2021-06-05 03:45:13,180 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385736172] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:13,180 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:13,180 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:13,180 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221199531] [2021-06-05 03:45:13,180 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:13,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:13,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:13,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:13,180 INFO L87 Difference]: Start difference. First operand 5149 states and 24455 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:13,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:13,298 INFO L93 Difference]: Finished difference Result 11114 states and 49514 transitions. [2021-06-05 03:45:13,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:13,298 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:13,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:13,326 INFO L225 Difference]: With dead ends: 11114 [2021-06-05 03:45:13,326 INFO L226 Difference]: Without dead ends: 10699 [2021-06-05 03:45:13,326 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 148.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:13,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10699 states. [2021-06-05 03:45:13,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10699 to 5181. [2021-06-05 03:45:13,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5181 states, 5180 states have (on average 4.742664092664093) internal successors, (24567), 5180 states have internal predecessors, (24567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:13,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5181 states to 5181 states and 24567 transitions. [2021-06-05 03:45:13,566 INFO L78 Accepts]: Start accepts. Automaton has 5181 states and 24567 transitions. Word has length 29 [2021-06-05 03:45:13,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:13,566 INFO L482 AbstractCegarLoop]: Abstraction has 5181 states and 24567 transitions. [2021-06-05 03:45:13,566 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:13,566 INFO L276 IsEmpty]: Start isEmpty. Operand 5181 states and 24567 transitions. [2021-06-05 03:45:13,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:13,575 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:13,575 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:13,575 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable757 [2021-06-05 03:45:13,575 INFO L430 AbstractCegarLoop]: === Iteration 759 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:13,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:13,575 INFO L82 PathProgramCache]: Analyzing trace with hash 1854056007, now seen corresponding path program 754 times [2021-06-05 03:45:13,575 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:13,575 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314371121] [2021-06-05 03:45:13,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:13,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:13,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:13,701 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:13,701 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314371121] [2021-06-05 03:45:13,701 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314371121] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:13,701 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:13,701 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:13,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55859498] [2021-06-05 03:45:13,701 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:13,701 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:13,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:13,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:13,701 INFO L87 Difference]: Start difference. First operand 5181 states and 24567 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:13,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:13,807 INFO L93 Difference]: Finished difference Result 11114 states and 49482 transitions. [2021-06-05 03:45:13,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:13,807 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:13,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:13,834 INFO L225 Difference]: With dead ends: 11114 [2021-06-05 03:45:13,834 INFO L226 Difference]: Without dead ends: 10667 [2021-06-05 03:45:13,834 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 132.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:13,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10667 states. [2021-06-05 03:45:14,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10667 to 5149. [2021-06-05 03:45:14,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5149 states, 5148 states have (on average 4.747280497280498) internal successors, (24439), 5148 states have internal predecessors, (24439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:14,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5149 states to 5149 states and 24439 transitions. [2021-06-05 03:45:14,067 INFO L78 Accepts]: Start accepts. Automaton has 5149 states and 24439 transitions. Word has length 29 [2021-06-05 03:45:14,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:14,067 INFO L482 AbstractCegarLoop]: Abstraction has 5149 states and 24439 transitions. [2021-06-05 03:45:14,067 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:14,067 INFO L276 IsEmpty]: Start isEmpty. Operand 5149 states and 24439 transitions. [2021-06-05 03:45:14,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:14,076 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:14,076 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:14,076 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable758 [2021-06-05 03:45:14,076 INFO L430 AbstractCegarLoop]: === Iteration 760 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:14,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:14,076 INFO L82 PathProgramCache]: Analyzing trace with hash -1719307739, now seen corresponding path program 755 times [2021-06-05 03:45:14,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:14,076 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379018164] [2021-06-05 03:45:14,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:14,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:14,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:14,208 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:14,208 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379018164] [2021-06-05 03:45:14,208 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379018164] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:14,208 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:14,208 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:14,208 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853973963] [2021-06-05 03:45:14,208 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:14,208 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:14,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:14,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:14,209 INFO L87 Difference]: Start difference. First operand 5149 states and 24439 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:14,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:14,314 INFO L93 Difference]: Finished difference Result 11416 states and 50776 transitions. [2021-06-05 03:45:14,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:14,315 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:14,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:14,342 INFO L225 Difference]: With dead ends: 11416 [2021-06-05 03:45:14,342 INFO L226 Difference]: Without dead ends: 10874 [2021-06-05 03:45:14,342 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 138.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:14,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10874 states. [2021-06-05 03:45:14,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10874 to 5229. [2021-06-05 03:45:14,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5229 states, 5228 states have (on average 4.729724560061209) internal successors, (24727), 5228 states have internal predecessors, (24727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:14,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5229 states to 5229 states and 24727 transitions. [2021-06-05 03:45:14,577 INFO L78 Accepts]: Start accepts. Automaton has 5229 states and 24727 transitions. Word has length 29 [2021-06-05 03:45:14,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:14,578 INFO L482 AbstractCegarLoop]: Abstraction has 5229 states and 24727 transitions. [2021-06-05 03:45:14,578 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:14,578 INFO L276 IsEmpty]: Start isEmpty. Operand 5229 states and 24727 transitions. [2021-06-05 03:45:14,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:14,587 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:14,587 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:14,587 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable759 [2021-06-05 03:45:14,587 INFO L430 AbstractCegarLoop]: === Iteration 761 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:14,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:14,587 INFO L82 PathProgramCache]: Analyzing trace with hash -1926115705, now seen corresponding path program 756 times [2021-06-05 03:45:14,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:14,587 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500147652] [2021-06-05 03:45:14,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:14,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:14,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:14,725 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:14,725 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500147652] [2021-06-05 03:45:14,725 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500147652] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:14,725 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:14,725 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:14,725 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122307571] [2021-06-05 03:45:14,725 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:14,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:14,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:14,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:14,726 INFO L87 Difference]: Start difference. First operand 5229 states and 24727 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:14,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:14,829 INFO L93 Difference]: Finished difference Result 11289 states and 50169 transitions. [2021-06-05 03:45:14,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:14,829 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:14,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:14,856 INFO L225 Difference]: With dead ends: 11289 [2021-06-05 03:45:14,857 INFO L226 Difference]: Without dead ends: 10762 [2021-06-05 03:45:14,857 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 141.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:14,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10762 states. [2021-06-05 03:45:15,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10762 to 5117. [2021-06-05 03:45:15,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.751954652071931) internal successors, (24311), 5116 states have internal predecessors, (24311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:15,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24311 transitions. [2021-06-05 03:45:15,095 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24311 transitions. Word has length 29 [2021-06-05 03:45:15,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:15,095 INFO L482 AbstractCegarLoop]: Abstraction has 5117 states and 24311 transitions. [2021-06-05 03:45:15,095 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:15,095 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24311 transitions. [2021-06-05 03:45:15,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:15,104 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:15,104 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:15,104 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable760 [2021-06-05 03:45:15,104 INFO L430 AbstractCegarLoop]: === Iteration 762 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:15,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:15,104 INFO L82 PathProgramCache]: Analyzing trace with hash 1147363945, now seen corresponding path program 757 times [2021-06-05 03:45:15,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:15,105 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013525437] [2021-06-05 03:45:15,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:15,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:15,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:15,239 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:15,239 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013525437] [2021-06-05 03:45:15,239 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013525437] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:15,239 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:15,239 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:15,239 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665130125] [2021-06-05 03:45:15,240 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:15,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:15,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:15,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:15,240 INFO L87 Difference]: Start difference. First operand 5117 states and 24311 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:15,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:15,359 INFO L93 Difference]: Finished difference Result 11047 states and 49253 transitions. [2021-06-05 03:45:15,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:15,359 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:15,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:15,385 INFO L225 Difference]: With dead ends: 11047 [2021-06-05 03:45:15,385 INFO L226 Difference]: Without dead ends: 10632 [2021-06-05 03:45:15,386 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 158.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:15,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10632 states. [2021-06-05 03:45:15,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10632 to 5181. [2021-06-05 03:45:15,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5181 states, 5180 states have (on average 4.742664092664093) internal successors, (24567), 5180 states have internal predecessors, (24567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:15,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5181 states to 5181 states and 24567 transitions. [2021-06-05 03:45:15,619 INFO L78 Accepts]: Start accepts. Automaton has 5181 states and 24567 transitions. Word has length 29 [2021-06-05 03:45:15,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:15,619 INFO L482 AbstractCegarLoop]: Abstraction has 5181 states and 24567 transitions. [2021-06-05 03:45:15,619 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:15,619 INFO L276 IsEmpty]: Start isEmpty. Operand 5181 states and 24567 transitions. [2021-06-05 03:45:15,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:15,628 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:15,628 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:15,628 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable761 [2021-06-05 03:45:15,628 INFO L430 AbstractCegarLoop]: === Iteration 763 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:15,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:15,628 INFO L82 PathProgramCache]: Analyzing trace with hash 1864026891, now seen corresponding path program 758 times [2021-06-05 03:45:15,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:15,628 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123218994] [2021-06-05 03:45:15,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:15,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:15,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:15,763 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:15,763 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123218994] [2021-06-05 03:45:15,763 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123218994] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:15,763 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:15,763 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:15,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30810095] [2021-06-05 03:45:15,763 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:15,764 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:15,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:15,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:15,764 INFO L87 Difference]: Start difference. First operand 5181 states and 24567 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:15,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:15,885 INFO L93 Difference]: Finished difference Result 11109 states and 49474 transitions. [2021-06-05 03:45:15,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:15,886 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:15,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:15,912 INFO L225 Difference]: With dead ends: 11109 [2021-06-05 03:45:15,912 INFO L226 Difference]: Without dead ends: 10584 [2021-06-05 03:45:15,912 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 159.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:16,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10584 states. [2021-06-05 03:45:16,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10584 to 5133. [2021-06-05 03:45:16,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5133 states, 5132 states have (on average 4.749610288386594) internal successors, (24375), 5132 states have internal predecessors, (24375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:16,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5133 states to 5133 states and 24375 transitions. [2021-06-05 03:45:16,145 INFO L78 Accepts]: Start accepts. Automaton has 5133 states and 24375 transitions. Word has length 29 [2021-06-05 03:45:16,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:16,145 INFO L482 AbstractCegarLoop]: Abstraction has 5133 states and 24375 transitions. [2021-06-05 03:45:16,145 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:16,145 INFO L276 IsEmpty]: Start isEmpty. Operand 5133 states and 24375 transitions. [2021-06-05 03:45:16,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:16,154 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:16,154 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:16,154 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable762 [2021-06-05 03:45:16,154 INFO L430 AbstractCegarLoop]: === Iteration 764 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:16,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:16,154 INFO L82 PathProgramCache]: Analyzing trace with hash 666461899, now seen corresponding path program 759 times [2021-06-05 03:45:16,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:16,154 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562747155] [2021-06-05 03:45:16,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:16,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:16,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:16,281 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:16,281 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562747155] [2021-06-05 03:45:16,281 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562747155] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:16,281 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:16,281 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:16,281 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183356379] [2021-06-05 03:45:16,281 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:16,281 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:16,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:16,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:16,281 INFO L87 Difference]: Start difference. First operand 5133 states and 24375 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:16,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:16,404 INFO L93 Difference]: Finished difference Result 10969 states and 48888 transitions. [2021-06-05 03:45:16,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:16,404 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:16,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:16,431 INFO L225 Difference]: With dead ends: 10969 [2021-06-05 03:45:16,432 INFO L226 Difference]: Without dead ends: 10554 [2021-06-05 03:45:16,432 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 150.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:16,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10554 states. [2021-06-05 03:45:16,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10554 to 5165. [2021-06-05 03:45:16,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5165 states, 5164 states have (on average 4.741866769945778) internal successors, (24487), 5164 states have internal predecessors, (24487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:16,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5165 states to 5165 states and 24487 transitions. [2021-06-05 03:45:16,663 INFO L78 Accepts]: Start accepts. Automaton has 5165 states and 24487 transitions. Word has length 29 [2021-06-05 03:45:16,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:16,663 INFO L482 AbstractCegarLoop]: Abstraction has 5165 states and 24487 transitions. [2021-06-05 03:45:16,663 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:16,663 INFO L276 IsEmpty]: Start isEmpty. Operand 5165 states and 24487 transitions. [2021-06-05 03:45:16,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:16,672 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:16,672 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:16,672 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable763 [2021-06-05 03:45:16,672 INFO L430 AbstractCegarLoop]: === Iteration 765 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:16,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:16,673 INFO L82 PathProgramCache]: Analyzing trace with hash 1077869895, now seen corresponding path program 760 times [2021-06-05 03:45:16,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:16,673 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737494101] [2021-06-05 03:45:16,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:16,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:16,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:16,801 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:16,801 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737494101] [2021-06-05 03:45:16,801 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737494101] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:16,801 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:16,801 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:16,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885227470] [2021-06-05 03:45:16,802 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:16,802 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:16,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:16,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:16,802 INFO L87 Difference]: Start difference. First operand 5165 states and 24487 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:16,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:16,902 INFO L93 Difference]: Finished difference Result 10969 states and 48856 transitions. [2021-06-05 03:45:16,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:16,902 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:16,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:16,929 INFO L225 Difference]: With dead ends: 10969 [2021-06-05 03:45:16,929 INFO L226 Difference]: Without dead ends: 10522 [2021-06-05 03:45:16,929 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 135.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:17,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10522 states. [2021-06-05 03:45:17,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10522 to 5133. [2021-06-05 03:45:17,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5133 states, 5132 states have (on average 4.746492595479345) internal successors, (24359), 5132 states have internal predecessors, (24359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:17,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5133 states to 5133 states and 24359 transitions. [2021-06-05 03:45:17,161 INFO L78 Accepts]: Start accepts. Automaton has 5133 states and 24359 transitions. Word has length 29 [2021-06-05 03:45:17,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:17,161 INFO L482 AbstractCegarLoop]: Abstraction has 5133 states and 24359 transitions. [2021-06-05 03:45:17,161 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:17,161 INFO L276 IsEmpty]: Start isEmpty. Operand 5133 states and 24359 transitions. [2021-06-05 03:45:17,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:17,170 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:17,170 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:17,170 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable764 [2021-06-05 03:45:17,170 INFO L430 AbstractCegarLoop]: === Iteration 766 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:17,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:17,170 INFO L82 PathProgramCache]: Analyzing trace with hash 1213565383, now seen corresponding path program 761 times [2021-06-05 03:45:17,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:17,170 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391752535] [2021-06-05 03:45:17,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:17,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:17,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:17,304 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:17,304 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391752535] [2021-06-05 03:45:17,304 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391752535] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:17,304 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:17,304 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:17,304 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255383542] [2021-06-05 03:45:17,305 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:17,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:17,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:17,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:17,305 INFO L87 Difference]: Start difference. First operand 5133 states and 24359 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:17,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:17,433 INFO L93 Difference]: Finished difference Result 11109 states and 49490 transitions. [2021-06-05 03:45:17,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:17,433 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:17,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:17,460 INFO L225 Difference]: With dead ends: 11109 [2021-06-05 03:45:17,461 INFO L226 Difference]: Without dead ends: 10632 [2021-06-05 03:45:17,461 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 166.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:17,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10632 states. [2021-06-05 03:45:17,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10632 to 5181. [2021-06-05 03:45:17,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5181 states, 5180 states have (on average 4.736486486486487) internal successors, (24535), 5180 states have internal predecessors, (24535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:17,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5181 states to 5181 states and 24535 transitions. [2021-06-05 03:45:17,694 INFO L78 Accepts]: Start accepts. Automaton has 5181 states and 24535 transitions. Word has length 29 [2021-06-05 03:45:17,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:17,694 INFO L482 AbstractCegarLoop]: Abstraction has 5181 states and 24535 transitions. [2021-06-05 03:45:17,694 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:17,694 INFO L276 IsEmpty]: Start isEmpty. Operand 5181 states and 24535 transitions. [2021-06-05 03:45:17,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:17,703 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:17,703 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:17,703 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable765 [2021-06-05 03:45:17,703 INFO L430 AbstractCegarLoop]: === Iteration 767 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:17,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:17,703 INFO L82 PathProgramCache]: Analyzing trace with hash -2000339287, now seen corresponding path program 762 times [2021-06-05 03:45:17,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:17,703 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562388212] [2021-06-05 03:45:17,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:17,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:17,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:17,861 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:17,861 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562388212] [2021-06-05 03:45:17,861 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562388212] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:17,861 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:17,861 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:17,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434447602] [2021-06-05 03:45:17,861 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:17,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:17,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:17,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:17,862 INFO L87 Difference]: Start difference. First operand 5181 states and 24535 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:17,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:17,980 INFO L93 Difference]: Finished difference Result 11047 states and 49173 transitions. [2021-06-05 03:45:17,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:17,980 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:17,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:18,006 INFO L225 Difference]: With dead ends: 11047 [2021-06-05 03:45:18,006 INFO L226 Difference]: Without dead ends: 10568 [2021-06-05 03:45:18,006 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 158.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:18,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10568 states. [2021-06-05 03:45:18,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10568 to 5117. [2021-06-05 03:45:18,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.750390930414386) internal successors, (24303), 5116 states have internal predecessors, (24303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:18,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24303 transitions. [2021-06-05 03:45:18,235 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24303 transitions. Word has length 29 [2021-06-05 03:45:18,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:18,235 INFO L482 AbstractCegarLoop]: Abstraction has 5117 states and 24303 transitions. [2021-06-05 03:45:18,235 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:18,235 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24303 transitions. [2021-06-05 03:45:18,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:18,244 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:18,244 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:18,244 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable766 [2021-06-05 03:45:18,244 INFO L430 AbstractCegarLoop]: === Iteration 768 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:18,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:18,244 INFO L82 PathProgramCache]: Analyzing trace with hash -473446875, now seen corresponding path program 763 times [2021-06-05 03:45:18,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:18,244 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773791995] [2021-06-05 03:45:18,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:18,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:18,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:18,382 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:18,382 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773791995] [2021-06-05 03:45:18,382 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773791995] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:18,382 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:18,382 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:18,383 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455466003] [2021-06-05 03:45:18,383 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:18,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:18,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:18,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:18,383 INFO L87 Difference]: Start difference. First operand 5117 states and 24303 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:18,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:18,506 INFO L93 Difference]: Finished difference Result 11706 states and 52050 transitions. [2021-06-05 03:45:18,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:18,507 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:18,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:18,534 INFO L225 Difference]: With dead ends: 11706 [2021-06-05 03:45:18,534 INFO L226 Difference]: Without dead ends: 11164 [2021-06-05 03:45:18,534 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 142.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:18,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11164 states. [2021-06-05 03:45:18,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11164 to 5316. [2021-06-05 03:45:18,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5316 states, 5315 states have (on average 4.720602069614299) internal successors, (25090), 5315 states have internal predecessors, (25090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:18,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5316 states to 5316 states and 25090 transitions. [2021-06-05 03:45:18,768 INFO L78 Accepts]: Start accepts. Automaton has 5316 states and 25090 transitions. Word has length 29 [2021-06-05 03:45:18,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:18,768 INFO L482 AbstractCegarLoop]: Abstraction has 5316 states and 25090 transitions. [2021-06-05 03:45:18,768 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:18,768 INFO L276 IsEmpty]: Start isEmpty. Operand 5316 states and 25090 transitions. [2021-06-05 03:45:18,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:18,777 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:18,777 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:18,777 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable767 [2021-06-05 03:45:18,777 INFO L430 AbstractCegarLoop]: === Iteration 769 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:18,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:18,777 INFO L82 PathProgramCache]: Analyzing trace with hash 607615751, now seen corresponding path program 764 times [2021-06-05 03:45:18,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:18,777 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991369869] [2021-06-05 03:45:18,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:18,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:18,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:18,904 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:18,904 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991369869] [2021-06-05 03:45:18,904 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991369869] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:18,904 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:18,904 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:18,904 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916905867] [2021-06-05 03:45:18,904 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:18,904 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:18,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:18,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:18,905 INFO L87 Difference]: Start difference. First operand 5316 states and 25090 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:19,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:19,054 INFO L93 Difference]: Finished difference Result 11641 states and 51681 transitions. [2021-06-05 03:45:19,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:19,054 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:19,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:19,081 INFO L225 Difference]: With dead ends: 11641 [2021-06-05 03:45:19,081 INFO L226 Difference]: Without dead ends: 11021 [2021-06-05 03:45:19,081 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 149.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:19,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11021 states. [2021-06-05 03:45:19,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11021 to 5173. [2021-06-05 03:45:19,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5173 states, 5172 states have (on average 4.739945862335653) internal successors, (24515), 5172 states have internal predecessors, (24515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:19,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5173 states to 5173 states and 24515 transitions. [2021-06-05 03:45:19,314 INFO L78 Accepts]: Start accepts. Automaton has 5173 states and 24515 transitions. Word has length 29 [2021-06-05 03:45:19,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:19,314 INFO L482 AbstractCegarLoop]: Abstraction has 5173 states and 24515 transitions. [2021-06-05 03:45:19,314 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:19,314 INFO L276 IsEmpty]: Start isEmpty. Operand 5173 states and 24515 transitions. [2021-06-05 03:45:19,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:19,323 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:19,323 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:19,323 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable768 [2021-06-05 03:45:19,323 INFO L430 AbstractCegarLoop]: === Iteration 770 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:19,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:19,323 INFO L82 PathProgramCache]: Analyzing trace with hash -954348921, now seen corresponding path program 765 times [2021-06-05 03:45:19,323 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:19,323 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934150199] [2021-06-05 03:45:19,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:19,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:19,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:19,454 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:19,454 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934150199] [2021-06-05 03:45:19,455 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934150199] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:19,455 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:19,455 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:19,455 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555925020] [2021-06-05 03:45:19,455 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:19,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:19,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:19,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:19,455 INFO L87 Difference]: Start difference. First operand 5173 states and 24515 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:19,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:19,554 INFO L93 Difference]: Finished difference Result 11581 states and 51463 transitions. [2021-06-05 03:45:19,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:19,555 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:19,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:19,582 INFO L225 Difference]: With dead ends: 11581 [2021-06-05 03:45:19,583 INFO L226 Difference]: Without dead ends: 11039 [2021-06-05 03:45:19,583 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 137.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:19,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11039 states. [2021-06-05 03:45:19,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11039 to 5253. [2021-06-05 03:45:19,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5253 states, 5252 states have (on average 4.722581873571973) internal successors, (24803), 5252 states have internal predecessors, (24803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:19,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5253 states to 5253 states and 24803 transitions. [2021-06-05 03:45:19,813 INFO L78 Accepts]: Start accepts. Automaton has 5253 states and 24803 transitions. Word has length 29 [2021-06-05 03:45:19,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:19,813 INFO L482 AbstractCegarLoop]: Abstraction has 5253 states and 24803 transitions. [2021-06-05 03:45:19,813 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:19,813 INFO L276 IsEmpty]: Start isEmpty. Operand 5253 states and 24803 transitions. [2021-06-05 03:45:19,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:19,822 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:19,822 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:19,822 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable769 [2021-06-05 03:45:19,822 INFO L430 AbstractCegarLoop]: === Iteration 771 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:19,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:19,822 INFO L82 PathProgramCache]: Analyzing trace with hash 1652372103, now seen corresponding path program 766 times [2021-06-05 03:45:19,822 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:19,822 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811720750] [2021-06-05 03:45:19,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:19,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:19,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:19,951 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:19,951 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811720750] [2021-06-05 03:45:19,951 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811720750] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:19,951 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:19,951 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:19,951 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426742164] [2021-06-05 03:45:19,952 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:19,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:19,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:19,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:19,952 INFO L87 Difference]: Start difference. First operand 5253 states and 24803 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:20,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:20,046 INFO L93 Difference]: Finished difference Result 11454 states and 50856 transitions. [2021-06-05 03:45:20,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:20,047 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:20,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:20,073 INFO L225 Difference]: With dead ends: 11454 [2021-06-05 03:45:20,073 INFO L226 Difference]: Without dead ends: 10959 [2021-06-05 03:45:20,073 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 136.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:20,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10959 states. [2021-06-05 03:45:20,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10959 to 5173. [2021-06-05 03:45:20,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5173 states, 5172 states have (on average 4.732211910286156) internal successors, (24475), 5172 states have internal predecessors, (24475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:20,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5173 states to 5173 states and 24475 transitions. [2021-06-05 03:45:20,302 INFO L78 Accepts]: Start accepts. Automaton has 5173 states and 24475 transitions. Word has length 29 [2021-06-05 03:45:20,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:20,302 INFO L482 AbstractCegarLoop]: Abstraction has 5173 states and 24475 transitions. [2021-06-05 03:45:20,303 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:20,303 INFO L276 IsEmpty]: Start isEmpty. Operand 5173 states and 24475 transitions. [2021-06-05 03:45:20,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:20,311 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:20,311 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:20,311 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable770 [2021-06-05 03:45:20,312 INFO L430 AbstractCegarLoop]: === Iteration 772 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:20,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:20,312 INFO L82 PathProgramCache]: Analyzing trace with hash -566343959, now seen corresponding path program 767 times [2021-06-05 03:45:20,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:20,312 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164414929] [2021-06-05 03:45:20,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:20,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:20,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:20,442 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:20,442 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164414929] [2021-06-05 03:45:20,442 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164414929] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:20,442 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:20,442 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:20,442 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612680398] [2021-06-05 03:45:20,442 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:20,442 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:20,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:20,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:20,442 INFO L87 Difference]: Start difference. First operand 5173 states and 24475 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:20,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:20,558 INFO L93 Difference]: Finished difference Result 11419 states and 50763 transitions. [2021-06-05 03:45:20,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:20,558 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:20,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:20,585 INFO L225 Difference]: With dead ends: 11419 [2021-06-05 03:45:20,585 INFO L226 Difference]: Without dead ends: 10942 [2021-06-05 03:45:20,585 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 154.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:20,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10942 states. [2021-06-05 03:45:20,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10942 to 5221. [2021-06-05 03:45:20,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5221 states, 5220 states have (on average 4.722413793103448) internal successors, (24651), 5220 states have internal predecessors, (24651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:20,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5221 states to 5221 states and 24651 transitions. [2021-06-05 03:45:20,815 INFO L78 Accepts]: Start accepts. Automaton has 5221 states and 24651 transitions. Word has length 29 [2021-06-05 03:45:20,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:20,815 INFO L482 AbstractCegarLoop]: Abstraction has 5221 states and 24651 transitions. [2021-06-05 03:45:20,815 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:20,815 INFO L276 IsEmpty]: Start isEmpty. Operand 5221 states and 24651 transitions. [2021-06-05 03:45:20,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:20,823 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:20,823 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:20,824 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable771 [2021-06-05 03:45:20,824 INFO L430 AbstractCegarLoop]: === Iteration 773 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:20,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:20,824 INFO L82 PathProgramCache]: Analyzing trace with hash -1413140921, now seen corresponding path program 768 times [2021-06-05 03:45:20,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:20,824 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889261629] [2021-06-05 03:45:20,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:20,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:20,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:20,955 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:20,955 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889261629] [2021-06-05 03:45:20,955 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889261629] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:20,955 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:20,955 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:20,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149106647] [2021-06-05 03:45:20,955 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:20,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:20,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:20,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:20,955 INFO L87 Difference]: Start difference. First operand 5221 states and 24651 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:21,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:21,054 INFO L93 Difference]: Finished difference Result 11357 states and 50446 transitions. [2021-06-05 03:45:21,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:21,054 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:21,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:21,081 INFO L225 Difference]: With dead ends: 11357 [2021-06-05 03:45:21,081 INFO L226 Difference]: Without dead ends: 10814 [2021-06-05 03:45:21,082 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 137.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:21,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10814 states. [2021-06-05 03:45:21,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10814 to 5093. [2021-06-05 03:45:21,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5093 states, 5092 states have (on average 4.755498821681068) internal successors, (24215), 5092 states have internal predecessors, (24215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:21,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5093 states to 5093 states and 24215 transitions. [2021-06-05 03:45:21,306 INFO L78 Accepts]: Start accepts. Automaton has 5093 states and 24215 transitions. Word has length 29 [2021-06-05 03:45:21,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:21,306 INFO L482 AbstractCegarLoop]: Abstraction has 5093 states and 24215 transitions. [2021-06-05 03:45:21,306 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:21,306 INFO L276 IsEmpty]: Start isEmpty. Operand 5093 states and 24215 transitions. [2021-06-05 03:45:21,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:21,315 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:21,315 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:21,315 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable772 [2021-06-05 03:45:21,315 INFO L430 AbstractCegarLoop]: === Iteration 774 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:21,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:21,315 INFO L82 PathProgramCache]: Analyzing trace with hash 1341320395, now seen corresponding path program 769 times [2021-06-05 03:45:21,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:21,315 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618474423] [2021-06-05 03:45:21,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:21,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:21,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:21,450 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:21,450 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618474423] [2021-06-05 03:45:21,450 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618474423] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:21,450 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:21,450 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:21,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086686513] [2021-06-05 03:45:21,450 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:21,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:21,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:21,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:21,450 INFO L87 Difference]: Start difference. First operand 5093 states and 24215 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:21,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:21,564 INFO L93 Difference]: Finished difference Result 11214 states and 50025 transitions. [2021-06-05 03:45:21,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:21,565 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:21,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:21,591 INFO L225 Difference]: With dead ends: 11214 [2021-06-05 03:45:21,591 INFO L226 Difference]: Without dead ends: 10799 [2021-06-05 03:45:21,591 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 158.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:21,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10799 states. [2021-06-05 03:45:21,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10799 to 5221. [2021-06-05 03:45:21,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5221 states, 5220 states have (on average 4.747701149425287) internal successors, (24783), 5220 states have internal predecessors, (24783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:21,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5221 states to 5221 states and 24783 transitions. [2021-06-05 03:45:21,824 INFO L78 Accepts]: Start accepts. Automaton has 5221 states and 24783 transitions. Word has length 29 [2021-06-05 03:45:21,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:21,824 INFO L482 AbstractCegarLoop]: Abstraction has 5221 states and 24783 transitions. [2021-06-05 03:45:21,824 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:21,824 INFO L276 IsEmpty]: Start isEmpty. Operand 5221 states and 24783 transitions. [2021-06-05 03:45:21,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:21,833 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:21,833 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:21,833 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable773 [2021-06-05 03:45:21,833 INFO L430 AbstractCegarLoop]: === Iteration 775 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:21,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:21,834 INFO L82 PathProgramCache]: Analyzing trace with hash -1198826293, now seen corresponding path program 770 times [2021-06-05 03:45:21,834 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:21,834 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811616719] [2021-06-05 03:45:21,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:21,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:21,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:21,969 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:21,969 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811616719] [2021-06-05 03:45:21,969 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811616719] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:21,969 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:21,969 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:21,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436040543] [2021-06-05 03:45:21,969 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:21,969 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:21,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:21,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:21,969 INFO L87 Difference]: Start difference. First operand 5221 states and 24783 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:22,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:22,068 INFO L93 Difference]: Finished difference Result 11341 states and 50504 transitions. [2021-06-05 03:45:22,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:22,068 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:22,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:22,094 INFO L225 Difference]: With dead ends: 11341 [2021-06-05 03:45:22,094 INFO L226 Difference]: Without dead ends: 10719 [2021-06-05 03:45:22,095 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 142.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:22,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10719 states. [2021-06-05 03:45:22,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10719 to 5141. [2021-06-05 03:45:22,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5141 states, 5140 states have (on average 4.753112840466926) internal successors, (24431), 5140 states have internal predecessors, (24431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:22,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5141 states to 5141 states and 24431 transitions. [2021-06-05 03:45:22,320 INFO L78 Accepts]: Start accepts. Automaton has 5141 states and 24431 transitions. Word has length 29 [2021-06-05 03:45:22,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:22,320 INFO L482 AbstractCegarLoop]: Abstraction has 5141 states and 24431 transitions. [2021-06-05 03:45:22,321 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:22,321 INFO L276 IsEmpty]: Start isEmpty. Operand 5141 states and 24431 transitions. [2021-06-05 03:45:22,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:22,329 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:22,329 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:22,329 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable774 [2021-06-05 03:45:22,329 INFO L430 AbstractCegarLoop]: === Iteration 776 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:22,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:22,329 INFO L82 PathProgramCache]: Analyzing trace with hash 1426108393, now seen corresponding path program 771 times [2021-06-05 03:45:22,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:22,330 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642224228] [2021-06-05 03:45:22,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:22,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:22,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:22,457 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:22,457 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642224228] [2021-06-05 03:45:22,457 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642224228] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:22,457 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:22,457 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:22,457 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069194098] [2021-06-05 03:45:22,457 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:22,457 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:22,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:22,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:22,458 INFO L87 Difference]: Start difference. First operand 5141 states and 24431 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:22,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:22,577 INFO L93 Difference]: Finished difference Result 11039 states and 49242 transitions. [2021-06-05 03:45:22,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:22,578 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:22,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:22,605 INFO L225 Difference]: With dead ends: 11039 [2021-06-05 03:45:22,605 INFO L226 Difference]: Without dead ends: 10624 [2021-06-05 03:45:22,606 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 152.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:22,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10624 states. [2021-06-05 03:45:22,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10624 to 5173. [2021-06-05 03:45:22,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5173 states, 5172 states have (on average 4.745359628770301) internal successors, (24543), 5172 states have internal predecessors, (24543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:22,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5173 states to 5173 states and 24543 transitions. [2021-06-05 03:45:22,841 INFO L78 Accepts]: Start accepts. Automaton has 5173 states and 24543 transitions. Word has length 29 [2021-06-05 03:45:22,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:22,842 INFO L482 AbstractCegarLoop]: Abstraction has 5173 states and 24543 transitions. [2021-06-05 03:45:22,842 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:22,842 INFO L276 IsEmpty]: Start isEmpty. Operand 5173 states and 24543 transitions. [2021-06-05 03:45:22,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:22,851 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:22,851 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:22,851 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable775 [2021-06-05 03:45:22,851 INFO L430 AbstractCegarLoop]: === Iteration 777 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:22,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:22,851 INFO L82 PathProgramCache]: Analyzing trace with hash -976012601, now seen corresponding path program 772 times [2021-06-05 03:45:22,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:22,851 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955921229] [2021-06-05 03:45:22,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:22,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:22,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:22,978 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:22,978 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955921229] [2021-06-05 03:45:22,978 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955921229] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:22,978 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:22,978 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:22,978 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590186796] [2021-06-05 03:45:22,979 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:22,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:22,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:22,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:22,979 INFO L87 Difference]: Start difference. First operand 5173 states and 24543 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:23,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:23,092 INFO L93 Difference]: Finished difference Result 11039 states and 49210 transitions. [2021-06-05 03:45:23,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:23,092 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:23,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:23,118 INFO L225 Difference]: With dead ends: 11039 [2021-06-05 03:45:23,118 INFO L226 Difference]: Without dead ends: 10592 [2021-06-05 03:45:23,119 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 134.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:23,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10592 states. [2021-06-05 03:45:23,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10592 to 5141. [2021-06-05 03:45:23,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5141 states, 5140 states have (on average 4.75) internal successors, (24415), 5140 states have internal predecessors, (24415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:23,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5141 states to 5141 states and 24415 transitions. [2021-06-05 03:45:23,352 INFO L78 Accepts]: Start accepts. Automaton has 5141 states and 24415 transitions. Word has length 29 [2021-06-05 03:45:23,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:23,353 INFO L482 AbstractCegarLoop]: Abstraction has 5141 states and 24415 transitions. [2021-06-05 03:45:23,353 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:23,353 INFO L276 IsEmpty]: Start isEmpty. Operand 5141 states and 24415 transitions. [2021-06-05 03:45:23,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:23,361 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:23,361 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:23,362 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable776 [2021-06-05 03:45:23,362 INFO L430 AbstractCegarLoop]: === Iteration 778 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:23,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:23,362 INFO L82 PathProgramCache]: Analyzing trace with hash -254409051, now seen corresponding path program 773 times [2021-06-05 03:45:23,362 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:23,362 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682024173] [2021-06-05 03:45:23,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:23,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:23,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:23,496 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:23,496 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682024173] [2021-06-05 03:45:23,496 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682024173] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:23,496 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:23,496 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:23,496 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783131965] [2021-06-05 03:45:23,496 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:23,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:23,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:23,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:23,497 INFO L87 Difference]: Start difference. First operand 5141 states and 24415 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:23,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:23,597 INFO L93 Difference]: Finished difference Result 11341 states and 50504 transitions. [2021-06-05 03:45:23,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:23,598 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:23,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:23,625 INFO L225 Difference]: With dead ends: 11341 [2021-06-05 03:45:23,625 INFO L226 Difference]: Without dead ends: 10799 [2021-06-05 03:45:23,625 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 141.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:23,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10799 states. [2021-06-05 03:45:23,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10799 to 5221. [2021-06-05 03:45:23,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5221 states, 5220 states have (on average 4.732375478927203) internal successors, (24703), 5220 states have internal predecessors, (24703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:23,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5221 states to 5221 states and 24703 transitions. [2021-06-05 03:45:23,862 INFO L78 Accepts]: Start accepts. Automaton has 5221 states and 24703 transitions. Word has length 29 [2021-06-05 03:45:23,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:23,863 INFO L482 AbstractCegarLoop]: Abstraction has 5221 states and 24703 transitions. [2021-06-05 03:45:23,863 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:23,863 INFO L276 IsEmpty]: Start isEmpty. Operand 5221 states and 24703 transitions. [2021-06-05 03:45:23,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:23,872 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:23,872 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:23,872 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable777 [2021-06-05 03:45:23,872 INFO L430 AbstractCegarLoop]: === Iteration 779 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:23,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:23,872 INFO L82 PathProgramCache]: Analyzing trace with hash -461217017, now seen corresponding path program 774 times [2021-06-05 03:45:23,872 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:23,872 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539884623] [2021-06-05 03:45:23,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:23,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:24,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:24,007 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:24,007 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539884623] [2021-06-05 03:45:24,007 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539884623] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:24,007 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:24,007 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:24,007 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171603479] [2021-06-05 03:45:24,007 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:24,007 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:24,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:24,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:24,008 INFO L87 Difference]: Start difference. First operand 5221 states and 24703 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:24,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:24,110 INFO L93 Difference]: Finished difference Result 11214 states and 49897 transitions. [2021-06-05 03:45:24,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:24,111 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:24,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:24,137 INFO L225 Difference]: With dead ends: 11214 [2021-06-05 03:45:24,137 INFO L226 Difference]: Without dead ends: 10687 [2021-06-05 03:45:24,137 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 141.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:24,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10687 states. [2021-06-05 03:45:24,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10687 to 5109. [2021-06-05 03:45:24,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5109 states, 5108 states have (on average 4.754698512137823) internal successors, (24287), 5108 states have internal predecessors, (24287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:24,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5109 states to 5109 states and 24287 transitions. [2021-06-05 03:45:24,370 INFO L78 Accepts]: Start accepts. Automaton has 5109 states and 24287 transitions. Word has length 29 [2021-06-05 03:45:24,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:24,370 INFO L482 AbstractCegarLoop]: Abstraction has 5109 states and 24287 transitions. [2021-06-05 03:45:24,370 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:24,370 INFO L276 IsEmpty]: Start isEmpty. Operand 5109 states and 24287 transitions. [2021-06-05 03:45:24,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:24,379 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:24,379 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:24,379 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable778 [2021-06-05 03:45:24,379 INFO L430 AbstractCegarLoop]: === Iteration 780 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:24,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:24,379 INFO L82 PathProgramCache]: Analyzing trace with hash -1495599831, now seen corresponding path program 775 times [2021-06-05 03:45:24,379 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:24,379 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895926311] [2021-06-05 03:45:24,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:24,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:24,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:24,516 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:24,516 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895926311] [2021-06-05 03:45:24,516 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895926311] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:24,516 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:24,516 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:24,516 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215272073] [2021-06-05 03:45:24,516 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:24,516 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:24,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:24,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:24,516 INFO L87 Difference]: Start difference. First operand 5109 states and 24287 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:24,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:24,636 INFO L93 Difference]: Finished difference Result 11328 states and 50544 transitions. [2021-06-05 03:45:24,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:24,637 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:24,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:24,663 INFO L225 Difference]: With dead ends: 11328 [2021-06-05 03:45:24,663 INFO L226 Difference]: Without dead ends: 10913 [2021-06-05 03:45:24,664 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 162.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:24,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10913 states. [2021-06-05 03:45:24,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10913 to 5229. [2021-06-05 03:45:24,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5229 states, 5228 states have (on average 4.745791889824025) internal successors, (24811), 5228 states have internal predecessors, (24811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:24,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5229 states to 5229 states and 24811 transitions. [2021-06-05 03:45:24,893 INFO L78 Accepts]: Start accepts. Automaton has 5229 states and 24811 transitions. Word has length 29 [2021-06-05 03:45:24,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:24,894 INFO L482 AbstractCegarLoop]: Abstraction has 5229 states and 24811 transitions. [2021-06-05 03:45:24,894 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:24,894 INFO L276 IsEmpty]: Start isEmpty. Operand 5229 states and 24811 transitions. [2021-06-05 03:45:24,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:24,902 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:24,903 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:24,903 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable779 [2021-06-05 03:45:24,903 INFO L430 AbstractCegarLoop]: === Iteration 781 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:24,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:24,903 INFO L82 PathProgramCache]: Analyzing trace with hash 259220777, now seen corresponding path program 776 times [2021-06-05 03:45:24,903 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:24,903 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484791433] [2021-06-05 03:45:24,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:24,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:25,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:25,043 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:25,043 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484791433] [2021-06-05 03:45:25,043 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484791433] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:25,043 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:25,043 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:25,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377527325] [2021-06-05 03:45:25,044 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:25,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:25,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:25,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:25,044 INFO L87 Difference]: Start difference. First operand 5229 states and 24811 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:25,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:25,148 INFO L93 Difference]: Finished difference Result 11455 states and 51023 transitions. [2021-06-05 03:45:25,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:25,149 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:25,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:25,176 INFO L225 Difference]: With dead ends: 11455 [2021-06-05 03:45:25,177 INFO L226 Difference]: Without dead ends: 10833 [2021-06-05 03:45:25,177 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 147.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:25,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10833 states. [2021-06-05 03:45:25,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10833 to 5149. [2021-06-05 03:45:25,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5149 states, 5148 states have (on average 4.7496114996114995) internal successors, (24451), 5148 states have internal predecessors, (24451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:25,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5149 states to 5149 states and 24451 transitions. [2021-06-05 03:45:25,411 INFO L78 Accepts]: Start accepts. Automaton has 5149 states and 24451 transitions. Word has length 29 [2021-06-05 03:45:25,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:25,411 INFO L482 AbstractCegarLoop]: Abstraction has 5149 states and 24451 transitions. [2021-06-05 03:45:25,411 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:25,411 INFO L276 IsEmpty]: Start isEmpty. Operand 5149 states and 24451 transitions. [2021-06-05 03:45:25,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:25,420 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:25,420 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:25,420 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable780 [2021-06-05 03:45:25,420 INFO L430 AbstractCegarLoop]: === Iteration 782 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:25,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:25,420 INFO L82 PathProgramCache]: Analyzing trace with hash -1827743639, now seen corresponding path program 777 times [2021-06-05 03:45:25,420 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:25,420 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46710236] [2021-06-05 03:45:25,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:25,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:25,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:25,563 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:25,563 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46710236] [2021-06-05 03:45:25,563 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46710236] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:25,563 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:25,563 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:25,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459993740] [2021-06-05 03:45:25,563 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:25,563 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:25,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:25,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:25,563 INFO L87 Difference]: Start difference. First operand 5149 states and 24451 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:25,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:25,686 INFO L93 Difference]: Finished difference Result 11229 states and 50097 transitions. [2021-06-05 03:45:25,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:25,686 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:25,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:25,713 INFO L225 Difference]: With dead ends: 11229 [2021-06-05 03:45:25,713 INFO L226 Difference]: Without dead ends: 10814 [2021-06-05 03:45:25,713 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 166.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:25,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10814 states. [2021-06-05 03:45:25,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10814 to 5197. [2021-06-05 03:45:25,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5197 states, 5196 states have (on average 4.739607390300231) internal successors, (24627), 5196 states have internal predecessors, (24627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:25,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5197 states to 5197 states and 24627 transitions. [2021-06-05 03:45:25,944 INFO L78 Accepts]: Start accepts. Automaton has 5197 states and 24627 transitions. Word has length 29 [2021-06-05 03:45:25,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:25,944 INFO L482 AbstractCegarLoop]: Abstraction has 5197 states and 24627 transitions. [2021-06-05 03:45:25,944 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:25,944 INFO L276 IsEmpty]: Start isEmpty. Operand 5197 states and 24627 transitions. [2021-06-05 03:45:25,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:25,953 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:25,953 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:25,953 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable781 [2021-06-05 03:45:25,953 INFO L430 AbstractCegarLoop]: === Iteration 783 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:25,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:25,953 INFO L82 PathProgramCache]: Analyzing trace with hash 1952542731, now seen corresponding path program 778 times [2021-06-05 03:45:25,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:25,953 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884104539] [2021-06-05 03:45:25,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:25,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:26,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:26,097 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:26,097 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884104539] [2021-06-05 03:45:26,097 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884104539] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:26,097 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:26,097 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:26,097 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915961107] [2021-06-05 03:45:26,097 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:26,097 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:26,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:26,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:26,097 INFO L87 Difference]: Start difference. First operand 5197 states and 24627 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:26,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:26,218 INFO L93 Difference]: Finished difference Result 11289 states and 50313 transitions. [2021-06-05 03:45:26,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:26,218 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:26,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:26,245 INFO L225 Difference]: With dead ends: 11289 [2021-06-05 03:45:26,245 INFO L226 Difference]: Without dead ends: 10766 [2021-06-05 03:45:26,245 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 168.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:26,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10766 states. [2021-06-05 03:45:26,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10766 to 5149. [2021-06-05 03:45:26,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5149 states, 5148 states have (on average 4.744949494949495) internal successors, (24427), 5148 states have internal predecessors, (24427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:26,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5149 states to 5149 states and 24427 transitions. [2021-06-05 03:45:26,477 INFO L78 Accepts]: Start accepts. Automaton has 5149 states and 24427 transitions. Word has length 29 [2021-06-05 03:45:26,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:26,477 INFO L482 AbstractCegarLoop]: Abstraction has 5149 states and 24427 transitions. [2021-06-05 03:45:26,477 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:26,478 INFO L276 IsEmpty]: Start isEmpty. Operand 5149 states and 24427 transitions. [2021-06-05 03:45:26,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:26,486 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:26,486 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:26,486 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable782 [2021-06-05 03:45:26,486 INFO L430 AbstractCegarLoop]: === Iteration 784 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:26,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:26,486 INFO L82 PathProgramCache]: Analyzing trace with hash -1603596277, now seen corresponding path program 779 times [2021-06-05 03:45:26,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:26,486 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451519225] [2021-06-05 03:45:26,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:26,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:26,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:26,617 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:26,617 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451519225] [2021-06-05 03:45:26,617 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451519225] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:26,618 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:26,618 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:26,618 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530294394] [2021-06-05 03:45:26,618 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:26,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:26,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:26,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:26,618 INFO L87 Difference]: Start difference. First operand 5149 states and 24427 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:26,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:26,728 INFO L93 Difference]: Finished difference Result 11545 states and 51418 transitions. [2021-06-05 03:45:26,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:26,728 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:26,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:26,755 INFO L225 Difference]: With dead ends: 11545 [2021-06-05 03:45:26,755 INFO L226 Difference]: Without dead ends: 11003 [2021-06-05 03:45:26,755 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 138.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:26,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11003 states. [2021-06-05 03:45:26,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11003 to 5259. [2021-06-05 03:45:26,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5259 states, 5258 states have (on average 4.7227082540890075) internal successors, (24832), 5258 states have internal predecessors, (24832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:26,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5259 states to 5259 states and 24832 transitions. [2021-06-05 03:45:26,984 INFO L78 Accepts]: Start accepts. Automaton has 5259 states and 24832 transitions. Word has length 29 [2021-06-05 03:45:26,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:26,984 INFO L482 AbstractCegarLoop]: Abstraction has 5259 states and 24832 transitions. [2021-06-05 03:45:26,984 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:26,985 INFO L276 IsEmpty]: Start isEmpty. Operand 5259 states and 24832 transitions. [2021-06-05 03:45:26,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:26,993 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:26,993 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:26,993 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable783 [2021-06-05 03:45:26,993 INFO L430 AbstractCegarLoop]: === Iteration 785 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:26,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:26,994 INFO L82 PathProgramCache]: Analyzing trace with hash 1950418921, now seen corresponding path program 780 times [2021-06-05 03:45:26,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:26,994 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057430688] [2021-06-05 03:45:26,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:26,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:27,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:27,122 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:27,122 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057430688] [2021-06-05 03:45:27,122 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057430688] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:27,122 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:27,122 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:27,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49675214] [2021-06-05 03:45:27,122 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:27,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:27,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:27,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:27,122 INFO L87 Difference]: Start difference. First operand 5259 states and 24832 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:27,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:27,246 INFO L93 Difference]: Finished difference Result 11478 states and 51045 transitions. [2021-06-05 03:45:27,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:27,246 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:27,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:27,273 INFO L225 Difference]: With dead ends: 11478 [2021-06-05 03:45:27,273 INFO L226 Difference]: Without dead ends: 10853 [2021-06-05 03:45:27,273 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 152.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:27,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10853 states. [2021-06-05 03:45:27,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10853 to 5109. [2021-06-05 03:45:27,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5109 states, 5108 states have (on average 4.751566170712608) internal successors, (24271), 5108 states have internal predecessors, (24271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:27,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5109 states to 5109 states and 24271 transitions. [2021-06-05 03:45:27,500 INFO L78 Accepts]: Start accepts. Automaton has 5109 states and 24271 transitions. Word has length 29 [2021-06-05 03:45:27,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:27,500 INFO L482 AbstractCegarLoop]: Abstraction has 5109 states and 24271 transitions. [2021-06-05 03:45:27,500 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:27,500 INFO L276 IsEmpty]: Start isEmpty. Operand 5109 states and 24271 transitions. [2021-06-05 03:45:27,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:27,509 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:27,509 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:27,509 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable784 [2021-06-05 03:45:27,509 INFO L430 AbstractCegarLoop]: === Iteration 786 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:27,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:27,509 INFO L82 PathProgramCache]: Analyzing trace with hash 11484167, now seen corresponding path program 781 times [2021-06-05 03:45:27,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:27,509 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744065790] [2021-06-05 03:45:27,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:27,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:27,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:27,659 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:27,659 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744065790] [2021-06-05 03:45:27,659 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744065790] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:27,659 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:27,659 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:27,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819014694] [2021-06-05 03:45:27,659 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:27,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:27,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:27,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:27,660 INFO L87 Difference]: Start difference. First operand 5109 states and 24271 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:27,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:27,798 INFO L93 Difference]: Finished difference Result 10892 states and 48611 transitions. [2021-06-05 03:45:27,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:27,799 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:27,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:27,831 INFO L225 Difference]: With dead ends: 10892 [2021-06-05 03:45:27,831 INFO L226 Difference]: Without dead ends: 10477 [2021-06-05 03:45:27,832 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 173.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:27,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10477 states. [2021-06-05 03:45:28,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10477 to 5157. [2021-06-05 03:45:28,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5157 states, 5156 states have (on average 4.744569433669511) internal successors, (24463), 5156 states have internal predecessors, (24463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:28,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5157 states to 5157 states and 24463 transitions. [2021-06-05 03:45:28,064 INFO L78 Accepts]: Start accepts. Automaton has 5157 states and 24463 transitions. Word has length 29 [2021-06-05 03:45:28,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:28,064 INFO L482 AbstractCegarLoop]: Abstraction has 5157 states and 24463 transitions. [2021-06-05 03:45:28,064 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:28,064 INFO L276 IsEmpty]: Start isEmpty. Operand 5157 states and 24463 transitions. [2021-06-05 03:45:28,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:28,072 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:28,072 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:28,072 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable785 [2021-06-05 03:45:28,072 INFO L430 AbstractCegarLoop]: === Iteration 787 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:28,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:28,073 INFO L82 PathProgramCache]: Analyzing trace with hash 1904330469, now seen corresponding path program 782 times [2021-06-05 03:45:28,073 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:28,073 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408205168] [2021-06-05 03:45:28,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:28,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:28,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:28,205 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:28,205 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408205168] [2021-06-05 03:45:28,205 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408205168] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:28,205 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:28,205 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:28,205 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520989969] [2021-06-05 03:45:28,205 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:28,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:28,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:28,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:28,207 INFO L87 Difference]: Start difference. First operand 5157 states and 24463 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:28,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:28,303 INFO L93 Difference]: Finished difference Result 10892 states and 48579 transitions. [2021-06-05 03:45:28,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:28,304 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:28,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:28,329 INFO L225 Difference]: With dead ends: 10892 [2021-06-05 03:45:28,329 INFO L226 Difference]: Without dead ends: 10445 [2021-06-05 03:45:28,329 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 139.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:28,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10445 states. [2021-06-05 03:45:28,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10445 to 5125. [2021-06-05 03:45:28,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5125 states, 5124 states have (on average 4.749219359875098) internal successors, (24335), 5124 states have internal predecessors, (24335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:28,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5125 states to 5125 states and 24335 transitions. [2021-06-05 03:45:28,604 INFO L78 Accepts]: Start accepts. Automaton has 5125 states and 24335 transitions. Word has length 29 [2021-06-05 03:45:28,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:28,604 INFO L482 AbstractCegarLoop]: Abstraction has 5125 states and 24335 transitions. [2021-06-05 03:45:28,604 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:28,604 INFO L276 IsEmpty]: Start isEmpty. Operand 5125 states and 24335 transitions. [2021-06-05 03:45:28,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:28,613 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:28,613 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:28,613 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable786 [2021-06-05 03:45:28,613 INFO L430 AbstractCegarLoop]: === Iteration 788 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:28,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:28,613 INFO L82 PathProgramCache]: Analyzing trace with hash -469417879, now seen corresponding path program 783 times [2021-06-05 03:45:28,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:28,613 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268905115] [2021-06-05 03:45:28,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:28,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:28,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:28,754 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:28,754 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268905115] [2021-06-05 03:45:28,754 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268905115] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:28,754 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:28,755 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:28,755 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701099574] [2021-06-05 03:45:28,755 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:28,755 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:28,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:28,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:28,755 INFO L87 Difference]: Start difference. First operand 5125 states and 24335 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:28,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:28,868 INFO L93 Difference]: Finished difference Result 10968 states and 48939 transitions. [2021-06-05 03:45:28,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:28,868 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:28,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:28,895 INFO L225 Difference]: With dead ends: 10968 [2021-06-05 03:45:28,895 INFO L226 Difference]: Without dead ends: 10553 [2021-06-05 03:45:28,895 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 165.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:29,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10553 states. [2021-06-05 03:45:29,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10553 to 5173. [2021-06-05 03:45:29,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5173 states, 5172 states have (on average 4.739172467130704) internal successors, (24511), 5172 states have internal predecessors, (24511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:29,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5173 states to 5173 states and 24511 transitions. [2021-06-05 03:45:29,125 INFO L78 Accepts]: Start accepts. Automaton has 5173 states and 24511 transitions. Word has length 29 [2021-06-05 03:45:29,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:29,125 INFO L482 AbstractCegarLoop]: Abstraction has 5173 states and 24511 transitions. [2021-06-05 03:45:29,125 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:29,125 INFO L276 IsEmpty]: Start isEmpty. Operand 5173 states and 24511 transitions. [2021-06-05 03:45:29,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:29,134 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:29,134 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:29,134 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable787 [2021-06-05 03:45:29,134 INFO L430 AbstractCegarLoop]: === Iteration 789 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:29,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:29,134 INFO L82 PathProgramCache]: Analyzing trace with hash 1829430185, now seen corresponding path program 784 times [2021-06-05 03:45:29,134 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:29,134 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670404240] [2021-06-05 03:45:29,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:29,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:29,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:29,273 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:29,273 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670404240] [2021-06-05 03:45:29,273 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670404240] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:29,273 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:29,274 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:29,274 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532919734] [2021-06-05 03:45:29,274 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:29,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:29,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:29,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:29,274 INFO L87 Difference]: Start difference. First operand 5173 states and 24511 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:29,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:29,389 INFO L93 Difference]: Finished difference Result 11028 states and 49155 transitions. [2021-06-05 03:45:29,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:29,389 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:29,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:29,415 INFO L225 Difference]: With dead ends: 11028 [2021-06-05 03:45:29,415 INFO L226 Difference]: Without dead ends: 10505 [2021-06-05 03:45:29,415 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 163.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:29,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10505 states. [2021-06-05 03:45:29,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10505 to 5125. [2021-06-05 03:45:29,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5125 states, 5124 states have (on average 4.746096799375488) internal successors, (24319), 5124 states have internal predecessors, (24319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:29,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5125 states to 5125 states and 24319 transitions. [2021-06-05 03:45:29,639 INFO L78 Accepts]: Start accepts. Automaton has 5125 states and 24319 transitions. Word has length 29 [2021-06-05 03:45:29,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:29,640 INFO L482 AbstractCegarLoop]: Abstraction has 5125 states and 24319 transitions. [2021-06-05 03:45:29,640 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:29,640 INFO L276 IsEmpty]: Start isEmpty. Operand 5125 states and 24319 transitions. [2021-06-05 03:45:29,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:29,648 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:29,648 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:29,648 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable788 [2021-06-05 03:45:29,648 INFO L430 AbstractCegarLoop]: === Iteration 790 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:29,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:29,648 INFO L82 PathProgramCache]: Analyzing trace with hash 1773634405, now seen corresponding path program 785 times [2021-06-05 03:45:29,648 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:29,648 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027003326] [2021-06-05 03:45:29,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:29,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:29,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:29,787 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:29,787 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027003326] [2021-06-05 03:45:29,787 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027003326] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:29,787 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:29,787 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:29,787 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740214299] [2021-06-05 03:45:29,787 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:29,787 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:29,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:29,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:29,787 INFO L87 Difference]: Start difference. First operand 5125 states and 24319 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:29,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:29,900 INFO L93 Difference]: Finished difference Result 10968 states and 48923 transitions. [2021-06-05 03:45:29,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:29,901 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:29,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:29,927 INFO L225 Difference]: With dead ends: 10968 [2021-06-05 03:45:29,927 INFO L226 Difference]: Without dead ends: 10553 [2021-06-05 03:45:29,927 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 145.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:30,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10553 states. [2021-06-05 03:45:30,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10553 to 5173. [2021-06-05 03:45:30,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5173 states, 5172 states have (on average 4.736078886310905) internal successors, (24495), 5172 states have internal predecessors, (24495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:30,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5173 states to 5173 states and 24495 transitions. [2021-06-05 03:45:30,151 INFO L78 Accepts]: Start accepts. Automaton has 5173 states and 24495 transitions. Word has length 29 [2021-06-05 03:45:30,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:30,151 INFO L482 AbstractCegarLoop]: Abstraction has 5173 states and 24495 transitions. [2021-06-05 03:45:30,151 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:30,151 INFO L276 IsEmpty]: Start isEmpty. Operand 5173 states and 24495 transitions. [2021-06-05 03:45:30,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:30,160 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:30,160 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:30,160 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable789 [2021-06-05 03:45:30,160 INFO L430 AbstractCegarLoop]: === Iteration 791 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:30,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:30,160 INFO L82 PathProgramCache]: Analyzing trace with hash -1440270265, now seen corresponding path program 786 times [2021-06-05 03:45:30,160 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:30,160 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412027] [2021-06-05 03:45:30,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:30,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:30,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:30,296 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:30,296 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412027] [2021-06-05 03:45:30,296 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412027] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:30,296 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:30,296 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:30,296 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201648067] [2021-06-05 03:45:30,296 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:30,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:30,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:30,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:30,297 INFO L87 Difference]: Start difference. First operand 5173 states and 24495 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:30,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:30,429 INFO L93 Difference]: Finished difference Result 11028 states and 49139 transitions. [2021-06-05 03:45:30,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:30,430 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:30,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:30,455 INFO L225 Difference]: With dead ends: 11028 [2021-06-05 03:45:30,456 INFO L226 Difference]: Without dead ends: 10489 [2021-06-05 03:45:30,456 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 160.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:30,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10489 states. [2021-06-05 03:45:30,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10489 to 5109. [2021-06-05 03:45:30,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5109 states, 5108 states have (on average 4.75) internal successors, (24263), 5108 states have internal predecessors, (24263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:30,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5109 states to 5109 states and 24263 transitions. [2021-06-05 03:45:30,683 INFO L78 Accepts]: Start accepts. Automaton has 5109 states and 24263 transitions. Word has length 29 [2021-06-05 03:45:30,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:30,683 INFO L482 AbstractCegarLoop]: Abstraction has 5109 states and 24263 transitions. [2021-06-05 03:45:30,683 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:30,683 INFO L276 IsEmpty]: Start isEmpty. Operand 5109 states and 24263 transitions. [2021-06-05 03:45:30,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:30,692 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:30,692 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:30,692 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable790 [2021-06-05 03:45:30,692 INFO L430 AbstractCegarLoop]: === Iteration 792 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:30,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:30,692 INFO L82 PathProgramCache]: Analyzing trace with hash -1609326653, now seen corresponding path program 787 times [2021-06-05 03:45:30,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:30,692 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263050034] [2021-06-05 03:45:30,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:30,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:30,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:30,826 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:30,826 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263050034] [2021-06-05 03:45:30,826 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263050034] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:30,826 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:30,826 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:30,826 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951432236] [2021-06-05 03:45:30,826 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:30,826 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:30,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:30,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:30,826 INFO L87 Difference]: Start difference. First operand 5109 states and 24263 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:30,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:30,938 INFO L93 Difference]: Finished difference Result 11455 states and 51047 transitions. [2021-06-05 03:45:30,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:30,938 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:30,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:30,965 INFO L225 Difference]: With dead ends: 11455 [2021-06-05 03:45:30,965 INFO L226 Difference]: Without dead ends: 10913 [2021-06-05 03:45:30,965 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 140.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:31,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10913 states. [2021-06-05 03:45:31,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10913 to 5229. [2021-06-05 03:45:31,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5229 states, 5228 states have (on average 4.735080336648814) internal successors, (24755), 5228 states have internal predecessors, (24755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:31,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5229 states to 5229 states and 24755 transitions. [2021-06-05 03:45:31,191 INFO L78 Accepts]: Start accepts. Automaton has 5229 states and 24755 transitions. Word has length 29 [2021-06-05 03:45:31,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:31,191 INFO L482 AbstractCegarLoop]: Abstraction has 5229 states and 24755 transitions. [2021-06-05 03:45:31,191 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:31,191 INFO L276 IsEmpty]: Start isEmpty. Operand 5229 states and 24755 transitions. [2021-06-05 03:45:31,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:31,199 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:31,199 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:31,200 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable791 [2021-06-05 03:45:31,200 INFO L430 AbstractCegarLoop]: === Iteration 793 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:31,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:31,200 INFO L82 PathProgramCache]: Analyzing trace with hash -1816134619, now seen corresponding path program 788 times [2021-06-05 03:45:31,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:31,200 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839214956] [2021-06-05 03:45:31,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:31,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:31,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:31,333 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:31,333 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839214956] [2021-06-05 03:45:31,333 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839214956] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:31,334 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:31,334 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:31,334 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867469394] [2021-06-05 03:45:31,334 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:31,334 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:31,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:31,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:31,334 INFO L87 Difference]: Start difference. First operand 5229 states and 24755 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:31,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:31,427 INFO L93 Difference]: Finished difference Result 11328 states and 50440 transitions. [2021-06-05 03:45:31,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:31,427 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:31,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:31,454 INFO L225 Difference]: With dead ends: 11328 [2021-06-05 03:45:31,454 INFO L226 Difference]: Without dead ends: 10833 [2021-06-05 03:45:31,454 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 140.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:31,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10833 states. [2021-06-05 03:45:31,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10833 to 5149. [2021-06-05 03:45:31,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5149 states, 5148 states have (on average 4.744949494949495) internal successors, (24427), 5148 states have internal predecessors, (24427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:31,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5149 states to 5149 states and 24427 transitions. [2021-06-05 03:45:31,681 INFO L78 Accepts]: Start accepts. Automaton has 5149 states and 24427 transitions. Word has length 29 [2021-06-05 03:45:31,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:31,681 INFO L482 AbstractCegarLoop]: Abstraction has 5149 states and 24427 transitions. [2021-06-05 03:45:31,681 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:31,681 INFO L276 IsEmpty]: Start isEmpty. Operand 5149 states and 24427 transitions. [2021-06-05 03:45:31,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:31,690 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:31,690 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:31,690 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable792 [2021-06-05 03:45:31,690 INFO L430 AbstractCegarLoop]: === Iteration 794 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:31,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:31,690 INFO L82 PathProgramCache]: Analyzing trace with hash -2090228699, now seen corresponding path program 789 times [2021-06-05 03:45:31,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:31,690 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447265214] [2021-06-05 03:45:31,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:31,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:31,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:31,817 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:31,817 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447265214] [2021-06-05 03:45:31,817 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447265214] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:31,817 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:31,817 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:31,817 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619239021] [2021-06-05 03:45:31,818 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:31,818 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:31,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:31,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:31,818 INFO L87 Difference]: Start difference. First operand 5149 states and 24427 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:31,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:31,913 INFO L93 Difference]: Finished difference Result 11545 states and 51418 transitions. [2021-06-05 03:45:31,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:31,913 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:31,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:31,941 INFO L225 Difference]: With dead ends: 11545 [2021-06-05 03:45:31,941 INFO L226 Difference]: Without dead ends: 11003 [2021-06-05 03:45:31,941 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 134.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:32,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11003 states. [2021-06-05 03:45:32,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11003 to 5259. [2021-06-05 03:45:32,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5259 states, 5258 states have (on average 4.7227082540890075) internal successors, (24832), 5258 states have internal predecessors, (24832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:32,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5259 states to 5259 states and 24832 transitions. [2021-06-05 03:45:32,167 INFO L78 Accepts]: Start accepts. Automaton has 5259 states and 24832 transitions. Word has length 29 [2021-06-05 03:45:32,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:32,167 INFO L482 AbstractCegarLoop]: Abstraction has 5259 states and 24832 transitions. [2021-06-05 03:45:32,168 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:32,168 INFO L276 IsEmpty]: Start isEmpty. Operand 5259 states and 24832 transitions. [2021-06-05 03:45:32,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:32,176 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:32,176 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:32,176 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable793 [2021-06-05 03:45:32,176 INFO L430 AbstractCegarLoop]: === Iteration 795 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:32,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:32,177 INFO L82 PathProgramCache]: Analyzing trace with hash -771378267, now seen corresponding path program 790 times [2021-06-05 03:45:32,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:32,177 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661651992] [2021-06-05 03:45:32,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:32,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:32,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:32,311 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:32,311 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661651992] [2021-06-05 03:45:32,311 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661651992] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:32,311 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:32,311 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:32,311 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698725356] [2021-06-05 03:45:32,311 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:32,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:32,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:32,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:32,312 INFO L87 Difference]: Start difference. First operand 5259 states and 24832 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:32,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:32,427 INFO L93 Difference]: Finished difference Result 11478 states and 51045 transitions. [2021-06-05 03:45:32,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:32,427 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:32,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:32,454 INFO L225 Difference]: With dead ends: 11478 [2021-06-05 03:45:32,454 INFO L226 Difference]: Without dead ends: 10893 [2021-06-05 03:45:32,455 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 157.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:32,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10893 states. [2021-06-05 03:45:32,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10893 to 5149. [2021-06-05 03:45:32,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5149 states, 5148 states have (on average 4.737179487179487) internal successors, (24387), 5148 states have internal predecessors, (24387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:32,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5149 states to 5149 states and 24387 transitions. [2021-06-05 03:45:32,680 INFO L78 Accepts]: Start accepts. Automaton has 5149 states and 24387 transitions. Word has length 29 [2021-06-05 03:45:32,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:32,680 INFO L482 AbstractCegarLoop]: Abstraction has 5149 states and 24387 transitions. [2021-06-05 03:45:32,680 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:32,680 INFO L276 IsEmpty]: Start isEmpty. Operand 5149 states and 24387 transitions. [2021-06-05 03:45:32,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:32,688 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:32,688 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:32,688 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable794 [2021-06-05 03:45:32,688 INFO L430 AbstractCegarLoop]: === Iteration 796 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:32,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:32,688 INFO L82 PathProgramCache]: Analyzing trace with hash 611815303, now seen corresponding path program 791 times [2021-06-05 03:45:32,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:32,689 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756104813] [2021-06-05 03:45:32,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:32,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:32,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:32,825 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:32,825 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756104813] [2021-06-05 03:45:32,825 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756104813] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:32,825 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:32,825 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:32,825 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540537032] [2021-06-05 03:45:32,825 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:32,825 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:32,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:32,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:32,825 INFO L87 Difference]: Start difference. First operand 5149 states and 24387 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:32,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:32,923 INFO L93 Difference]: Finished difference Result 11229 states and 50033 transitions. [2021-06-05 03:45:32,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:32,924 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:32,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:32,950 INFO L225 Difference]: With dead ends: 11229 [2021-06-05 03:45:32,950 INFO L226 Difference]: Without dead ends: 10814 [2021-06-05 03:45:32,950 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 143.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:33,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10814 states. [2021-06-05 03:45:33,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10814 to 5197. [2021-06-05 03:45:33,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5197 states, 5196 states have (on average 4.7272902232486524) internal successors, (24563), 5196 states have internal predecessors, (24563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:33,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5197 states to 5197 states and 24563 transitions. [2021-06-05 03:45:33,182 INFO L78 Accepts]: Start accepts. Automaton has 5197 states and 24563 transitions. Word has length 29 [2021-06-05 03:45:33,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:33,182 INFO L482 AbstractCegarLoop]: Abstraction has 5197 states and 24563 transitions. [2021-06-05 03:45:33,182 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:33,182 INFO L276 IsEmpty]: Start isEmpty. Operand 5197 states and 24563 transitions. [2021-06-05 03:45:33,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:33,191 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:33,191 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:33,191 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable795 [2021-06-05 03:45:33,191 INFO L430 AbstractCegarLoop]: === Iteration 797 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:33,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:33,191 INFO L82 PathProgramCache]: Analyzing trace with hash -234981659, now seen corresponding path program 792 times [2021-06-05 03:45:33,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:33,191 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236550936] [2021-06-05 03:45:33,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:33,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:33,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:33,326 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:33,326 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236550936] [2021-06-05 03:45:33,326 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236550936] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:33,326 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:33,326 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:33,326 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168981514] [2021-06-05 03:45:33,326 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:33,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:33,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:33,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:33,326 INFO L87 Difference]: Start difference. First operand 5197 states and 24563 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:33,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:33,442 INFO L93 Difference]: Finished difference Result 11289 states and 50249 transitions. [2021-06-05 03:45:33,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:33,443 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:33,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:33,470 INFO L225 Difference]: With dead ends: 11289 [2021-06-05 03:45:33,470 INFO L226 Difference]: Without dead ends: 10710 [2021-06-05 03:45:33,470 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 158.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:33,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10710 states. [2021-06-05 03:45:33,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10710 to 5093. [2021-06-05 03:45:33,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5093 states, 5092 states have (on average 4.753927729772192) internal successors, (24207), 5092 states have internal predecessors, (24207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:33,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5093 states to 5093 states and 24207 transitions. [2021-06-05 03:45:33,698 INFO L78 Accepts]: Start accepts. Automaton has 5093 states and 24207 transitions. Word has length 29 [2021-06-05 03:45:33,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:33,698 INFO L482 AbstractCegarLoop]: Abstraction has 5093 states and 24207 transitions. [2021-06-05 03:45:33,698 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:33,698 INFO L276 IsEmpty]: Start isEmpty. Operand 5093 states and 24207 transitions. [2021-06-05 03:45:33,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:33,707 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:33,707 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:33,707 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable796 [2021-06-05 03:45:33,707 INFO L430 AbstractCegarLoop]: === Iteration 798 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:33,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:33,707 INFO L82 PathProgramCache]: Analyzing trace with hash -274816249, now seen corresponding path program 793 times [2021-06-05 03:45:33,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:33,707 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698103151] [2021-06-05 03:45:33,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:33,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:33,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:33,843 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:33,843 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698103151] [2021-06-05 03:45:33,843 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698103151] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:33,843 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:33,843 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:33,843 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886265411] [2021-06-05 03:45:33,843 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:33,843 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:33,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:33,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:33,844 INFO L87 Difference]: Start difference. First operand 5093 states and 24207 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:33,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:33,957 INFO L93 Difference]: Finished difference Result 10755 states and 48015 transitions. [2021-06-05 03:45:33,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:33,958 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:33,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:33,984 INFO L225 Difference]: With dead ends: 10755 [2021-06-05 03:45:33,984 INFO L226 Difference]: Without dead ends: 10340 [2021-06-05 03:45:33,984 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 160.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:34,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10340 states. [2021-06-05 03:45:34,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10340 to 5165. [2021-06-05 03:45:34,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5165 states, 5164 states have (on average 4.7457397366382645) internal successors, (24507), 5164 states have internal predecessors, (24507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:34,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5165 states to 5165 states and 24507 transitions. [2021-06-05 03:45:34,211 INFO L78 Accepts]: Start accepts. Automaton has 5165 states and 24507 transitions. Word has length 29 [2021-06-05 03:45:34,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:34,212 INFO L482 AbstractCegarLoop]: Abstraction has 5165 states and 24507 transitions. [2021-06-05 03:45:34,212 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:34,212 INFO L276 IsEmpty]: Start isEmpty. Operand 5165 states and 24507 transitions. [2021-06-05 03:45:34,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:34,220 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:34,220 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:34,220 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable797 [2021-06-05 03:45:34,220 INFO L430 AbstractCegarLoop]: === Iteration 799 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:34,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:34,221 INFO L82 PathProgramCache]: Analyzing trace with hash 441846697, now seen corresponding path program 794 times [2021-06-05 03:45:34,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:34,221 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392855149] [2021-06-05 03:45:34,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:34,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:34,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:34,358 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:34,358 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392855149] [2021-06-05 03:45:34,358 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392855149] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:34,358 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:34,358 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:34,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303865704] [2021-06-05 03:45:34,358 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:34,358 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:34,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:34,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:34,358 INFO L87 Difference]: Start difference. First operand 5165 states and 24507 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:34,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:34,473 INFO L93 Difference]: Finished difference Result 10817 states and 48236 transitions. [2021-06-05 03:45:34,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:34,473 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:34,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:34,500 INFO L225 Difference]: With dead ends: 10817 [2021-06-05 03:45:34,500 INFO L226 Difference]: Without dead ends: 10292 [2021-06-05 03:45:34,500 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 161.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:34,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10292 states. [2021-06-05 03:45:34,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10292 to 5117. [2021-06-05 03:45:34,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.752736512900704) internal successors, (24315), 5116 states have internal predecessors, (24315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:34,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24315 transitions. [2021-06-05 03:45:34,729 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24315 transitions. Word has length 29 [2021-06-05 03:45:34,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:34,729 INFO L482 AbstractCegarLoop]: Abstraction has 5117 states and 24315 transitions. [2021-06-05 03:45:34,729 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:34,729 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24315 transitions. [2021-06-05 03:45:34,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:34,738 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:34,738 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:34,738 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable798 [2021-06-05 03:45:34,738 INFO L430 AbstractCegarLoop]: === Iteration 800 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:34,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:34,738 INFO L82 PathProgramCache]: Analyzing trace with hash -755718295, now seen corresponding path program 795 times [2021-06-05 03:45:34,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:34,738 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262126996] [2021-06-05 03:45:34,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:34,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:34,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:34,866 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:34,866 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262126996] [2021-06-05 03:45:34,866 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262126996] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:34,866 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:34,866 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:34,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688784264] [2021-06-05 03:45:34,866 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:34,866 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:34,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:34,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:34,866 INFO L87 Difference]: Start difference. First operand 5117 states and 24315 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:34,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:34,980 INFO L93 Difference]: Finished difference Result 10677 states and 47650 transitions. [2021-06-05 03:45:34,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:34,981 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:34,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:35,007 INFO L225 Difference]: With dead ends: 10677 [2021-06-05 03:45:35,007 INFO L226 Difference]: Without dead ends: 10262 [2021-06-05 03:45:35,007 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 152.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:35,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10262 states. [2021-06-05 03:45:35,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10262 to 5149. [2021-06-05 03:45:35,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5149 states, 5148 states have (on average 4.744949494949495) internal successors, (24427), 5148 states have internal predecessors, (24427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:35,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5149 states to 5149 states and 24427 transitions. [2021-06-05 03:45:35,230 INFO L78 Accepts]: Start accepts. Automaton has 5149 states and 24427 transitions. Word has length 29 [2021-06-05 03:45:35,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:35,230 INFO L482 AbstractCegarLoop]: Abstraction has 5149 states and 24427 transitions. [2021-06-05 03:45:35,231 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:35,231 INFO L276 IsEmpty]: Start isEmpty. Operand 5149 states and 24427 transitions. [2021-06-05 03:45:35,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:35,239 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:35,239 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:35,239 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable799 [2021-06-05 03:45:35,239 INFO L430 AbstractCegarLoop]: === Iteration 801 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:35,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:35,239 INFO L82 PathProgramCache]: Analyzing trace with hash -344310299, now seen corresponding path program 796 times [2021-06-05 03:45:35,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:35,240 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196574568] [2021-06-05 03:45:35,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:35,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:35,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:35,368 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:35,368 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196574568] [2021-06-05 03:45:35,368 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196574568] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:35,368 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:35,368 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:35,368 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550530550] [2021-06-05 03:45:35,368 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:35,368 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:35,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:35,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:35,369 INFO L87 Difference]: Start difference. First operand 5149 states and 24427 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:35,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:35,466 INFO L93 Difference]: Finished difference Result 10677 states and 47618 transitions. [2021-06-05 03:45:35,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:35,466 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:35,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:35,491 INFO L225 Difference]: With dead ends: 10677 [2021-06-05 03:45:35,491 INFO L226 Difference]: Without dead ends: 10230 [2021-06-05 03:45:35,492 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 135.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:35,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10230 states. [2021-06-05 03:45:35,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10230 to 5117. [2021-06-05 03:45:35,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.749609069585614) internal successors, (24299), 5116 states have internal predecessors, (24299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:35,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24299 transitions. [2021-06-05 03:45:35,718 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24299 transitions. Word has length 29 [2021-06-05 03:45:35,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:35,719 INFO L482 AbstractCegarLoop]: Abstraction has 5117 states and 24299 transitions. [2021-06-05 03:45:35,719 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:35,719 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24299 transitions. [2021-06-05 03:45:35,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:35,728 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:35,728 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:35,728 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable800 [2021-06-05 03:45:35,728 INFO L430 AbstractCegarLoop]: === Iteration 802 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:35,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:35,728 INFO L82 PathProgramCache]: Analyzing trace with hash -208614811, now seen corresponding path program 797 times [2021-06-05 03:45:35,728 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:35,728 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130542025] [2021-06-05 03:45:35,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:35,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:35,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:35,865 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:35,865 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130542025] [2021-06-05 03:45:35,865 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130542025] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:35,865 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:35,865 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:35,865 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062616289] [2021-06-05 03:45:35,865 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:35,865 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:35,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:35,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:35,865 INFO L87 Difference]: Start difference. First operand 5117 states and 24299 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:35,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:35,985 INFO L93 Difference]: Finished difference Result 10817 states and 48252 transitions. [2021-06-05 03:45:35,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:35,985 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:35,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:36,012 INFO L225 Difference]: With dead ends: 10817 [2021-06-05 03:45:36,012 INFO L226 Difference]: Without dead ends: 10340 [2021-06-05 03:45:36,012 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 162.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:36,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10340 states. [2021-06-05 03:45:36,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10340 to 5165. [2021-06-05 03:45:36,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5165 states, 5164 states have (on average 4.739542989930286) internal successors, (24475), 5164 states have internal predecessors, (24475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:36,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5165 states to 5165 states and 24475 transitions. [2021-06-05 03:45:36,241 INFO L78 Accepts]: Start accepts. Automaton has 5165 states and 24475 transitions. Word has length 29 [2021-06-05 03:45:36,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:36,241 INFO L482 AbstractCegarLoop]: Abstraction has 5165 states and 24475 transitions. [2021-06-05 03:45:36,241 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:36,241 INFO L276 IsEmpty]: Start isEmpty. Operand 5165 states and 24475 transitions. [2021-06-05 03:45:36,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:36,250 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:36,250 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:36,250 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable801 [2021-06-05 03:45:36,250 INFO L430 AbstractCegarLoop]: === Iteration 803 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:36,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:36,250 INFO L82 PathProgramCache]: Analyzing trace with hash 872447815, now seen corresponding path program 798 times [2021-06-05 03:45:36,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:36,250 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145545004] [2021-06-05 03:45:36,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:36,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:36,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:36,388 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:36,388 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145545004] [2021-06-05 03:45:36,388 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145545004] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:36,388 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:36,388 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:36,388 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78105802] [2021-06-05 03:45:36,388 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:36,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:36,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:36,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:36,388 INFO L87 Difference]: Start difference. First operand 5165 states and 24475 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:36,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:36,490 INFO L93 Difference]: Finished difference Result 10755 states and 47935 transitions. [2021-06-05 03:45:36,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:36,490 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:36,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:36,516 INFO L225 Difference]: With dead ends: 10755 [2021-06-05 03:45:36,516 INFO L226 Difference]: Without dead ends: 10276 [2021-06-05 03:45:36,516 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 144.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:36,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10276 states. [2021-06-05 03:45:36,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10276 to 5101. [2021-06-05 03:45:36,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5101 states, 5100 states have (on average 4.753529411764706) internal successors, (24243), 5100 states have internal predecessors, (24243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:36,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5101 states to 5101 states and 24243 transitions. [2021-06-05 03:45:36,744 INFO L78 Accepts]: Start accepts. Automaton has 5101 states and 24243 transitions. Word has length 29 [2021-06-05 03:45:36,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:36,744 INFO L482 AbstractCegarLoop]: Abstraction has 5101 states and 24243 transitions. [2021-06-05 03:45:36,744 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:36,744 INFO L276 IsEmpty]: Start isEmpty. Operand 5101 states and 24243 transitions. [2021-06-05 03:45:36,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:36,753 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:36,753 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:36,754 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable802 [2021-06-05 03:45:36,754 INFO L430 AbstractCegarLoop]: === Iteration 804 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:36,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:36,754 INFO L82 PathProgramCache]: Analyzing trace with hash 1434785513, now seen corresponding path program 799 times [2021-06-05 03:45:36,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:36,754 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718851966] [2021-06-05 03:45:36,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:36,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:36,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:36,894 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:36,894 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718851966] [2021-06-05 03:45:36,894 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718851966] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:36,894 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:36,894 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:36,894 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133342713] [2021-06-05 03:45:36,894 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:36,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:36,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:36,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:36,894 INFO L87 Difference]: Start difference. First operand 5101 states and 24243 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:37,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:37,015 INFO L93 Difference]: Finished difference Result 10869 states and 48542 transitions. [2021-06-05 03:45:37,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:37,015 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:37,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:37,041 INFO L225 Difference]: With dead ends: 10869 [2021-06-05 03:45:37,042 INFO L226 Difference]: Without dead ends: 10454 [2021-06-05 03:45:37,042 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 164.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:37,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10454 states. [2021-06-05 03:45:37,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10454 to 5173. [2021-06-05 03:45:37,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5173 states, 5172 states have (on average 4.745359628770301) internal successors, (24543), 5172 states have internal predecessors, (24543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:37,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5173 states to 5173 states and 24543 transitions. [2021-06-05 03:45:37,272 INFO L78 Accepts]: Start accepts. Automaton has 5173 states and 24543 transitions. Word has length 29 [2021-06-05 03:45:37,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:37,272 INFO L482 AbstractCegarLoop]: Abstraction has 5173 states and 24543 transitions. [2021-06-05 03:45:37,272 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:37,272 INFO L276 IsEmpty]: Start isEmpty. Operand 5173 states and 24543 transitions. [2021-06-05 03:45:37,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:37,281 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:37,281 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:37,281 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable803 [2021-06-05 03:45:37,281 INFO L430 AbstractCegarLoop]: === Iteration 805 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:37,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:37,281 INFO L82 PathProgramCache]: Analyzing trace with hash -2143518837, now seen corresponding path program 800 times [2021-06-05 03:45:37,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:37,282 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023158183] [2021-06-05 03:45:37,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:37,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:37,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:37,424 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:37,424 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023158183] [2021-06-05 03:45:37,424 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023158183] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:37,424 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:37,424 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:37,424 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808731366] [2021-06-05 03:45:37,424 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:37,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:37,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:37,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:37,424 INFO L87 Difference]: Start difference. First operand 5173 states and 24543 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:37,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:37,557 INFO L93 Difference]: Finished difference Result 10931 states and 48763 transitions. [2021-06-05 03:45:37,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:37,557 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:37,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:37,584 INFO L225 Difference]: With dead ends: 10931 [2021-06-05 03:45:37,584 INFO L226 Difference]: Without dead ends: 10406 [2021-06-05 03:45:37,584 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 178.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:37,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10406 states. [2021-06-05 03:45:37,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10406 to 5125. [2021-06-05 03:45:37,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5125 states, 5124 states have (on average 4.750780640124902) internal successors, (24343), 5124 states have internal predecessors, (24343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:37,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5125 states to 5125 states and 24343 transitions. [2021-06-05 03:45:37,815 INFO L78 Accepts]: Start accepts. Automaton has 5125 states and 24343 transitions. Word has length 29 [2021-06-05 03:45:37,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:37,815 INFO L482 AbstractCegarLoop]: Abstraction has 5125 states and 24343 transitions. [2021-06-05 03:45:37,815 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:37,815 INFO L276 IsEmpty]: Start isEmpty. Operand 5125 states and 24343 transitions. [2021-06-05 03:45:37,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:37,824 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:37,824 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:37,824 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable804 [2021-06-05 03:45:37,824 INFO L430 AbstractCegarLoop]: === Iteration 806 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:37,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:37,824 INFO L82 PathProgramCache]: Analyzing trace with hash -1767211287, now seen corresponding path program 801 times [2021-06-05 03:45:37,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:37,824 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482231221] [2021-06-05 03:45:37,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:37,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:37,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:37,968 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:37,968 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482231221] [2021-06-05 03:45:37,968 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482231221] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:37,968 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:37,968 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:37,968 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016267565] [2021-06-05 03:45:37,968 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:37,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:37,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:37,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:37,969 INFO L87 Difference]: Start difference. First operand 5125 states and 24343 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:38,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:38,122 INFO L93 Difference]: Finished difference Result 10867 states and 48513 transitions. [2021-06-05 03:45:38,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:38,123 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:38,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:38,150 INFO L225 Difference]: With dead ends: 10867 [2021-06-05 03:45:38,150 INFO L226 Difference]: Without dead ends: 10452 [2021-06-05 03:45:38,150 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 168.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:38,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10452 states. [2021-06-05 03:45:38,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10452 to 5173. [2021-06-05 03:45:38,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5173 states, 5172 states have (on average 4.740719257540603) internal successors, (24519), 5172 states have internal predecessors, (24519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:38,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5173 states to 5173 states and 24519 transitions. [2021-06-05 03:45:38,376 INFO L78 Accepts]: Start accepts. Automaton has 5173 states and 24519 transitions. Word has length 29 [2021-06-05 03:45:38,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:38,376 INFO L482 AbstractCegarLoop]: Abstraction has 5173 states and 24519 transitions. [2021-06-05 03:45:38,376 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:38,376 INFO L276 IsEmpty]: Start isEmpty. Operand 5173 states and 24519 transitions. [2021-06-05 03:45:38,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:38,385 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:38,385 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:38,385 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable805 [2021-06-05 03:45:38,385 INFO L430 AbstractCegarLoop]: === Iteration 807 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:38,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:38,385 INFO L82 PathProgramCache]: Analyzing trace with hash -737645911, now seen corresponding path program 802 times [2021-06-05 03:45:38,385 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:38,385 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082372254] [2021-06-05 03:45:38,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:38,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:38,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:38,532 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:38,532 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082372254] [2021-06-05 03:45:38,532 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082372254] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:38,532 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:38,532 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:38,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987019945] [2021-06-05 03:45:38,532 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:38,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:38,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:38,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:38,532 INFO L87 Difference]: Start difference. First operand 5173 states and 24519 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:38,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:38,647 INFO L93 Difference]: Finished difference Result 10927 states and 48729 transitions. [2021-06-05 03:45:38,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:38,647 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:38,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:38,673 INFO L225 Difference]: With dead ends: 10927 [2021-06-05 03:45:38,673 INFO L226 Difference]: Without dead ends: 10404 [2021-06-05 03:45:38,673 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 167.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:38,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10404 states. [2021-06-05 03:45:38,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10404 to 5125. [2021-06-05 03:45:38,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5125 states, 5124 states have (on average 4.746096799375488) internal successors, (24319), 5124 states have internal predecessors, (24319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:38,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5125 states to 5125 states and 24319 transitions. [2021-06-05 03:45:38,896 INFO L78 Accepts]: Start accepts. Automaton has 5125 states and 24319 transitions. Word has length 29 [2021-06-05 03:45:38,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:38,896 INFO L482 AbstractCegarLoop]: Abstraction has 5125 states and 24319 transitions. [2021-06-05 03:45:38,896 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:38,896 INFO L276 IsEmpty]: Start isEmpty. Operand 5125 states and 24319 transitions. [2021-06-05 03:45:38,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:38,905 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:38,905 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:38,905 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable806 [2021-06-05 03:45:38,905 INFO L430 AbstractCegarLoop]: === Iteration 808 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:38,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:38,905 INFO L82 PathProgramCache]: Analyzing trace with hash -563719477, now seen corresponding path program 803 times [2021-06-05 03:45:38,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:38,905 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134122102] [2021-06-05 03:45:38,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:38,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:39,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:39,033 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:39,033 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134122102] [2021-06-05 03:45:39,033 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134122102] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:39,033 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:39,033 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:39,033 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868749201] [2021-06-05 03:45:39,033 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:39,033 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:39,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:39,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:39,034 INFO L87 Difference]: Start difference. First operand 5125 states and 24319 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:39,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:39,144 INFO L93 Difference]: Finished difference Result 11021 states and 49174 transitions. [2021-06-05 03:45:39,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:39,144 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:39,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:39,171 INFO L225 Difference]: With dead ends: 11021 [2021-06-05 03:45:39,171 INFO L226 Difference]: Without dead ends: 10544 [2021-06-05 03:45:39,171 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 152.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:39,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10544 states. [2021-06-05 03:45:39,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10544 to 5203. [2021-06-05 03:45:39,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5203 states, 5202 states have (on average 4.731257208765859) internal successors, (24612), 5202 states have internal predecessors, (24612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:39,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5203 states to 5203 states and 24612 transitions. [2021-06-05 03:45:39,401 INFO L78 Accepts]: Start accepts. Automaton has 5203 states and 24612 transitions. Word has length 29 [2021-06-05 03:45:39,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:39,401 INFO L482 AbstractCegarLoop]: Abstraction has 5203 states and 24612 transitions. [2021-06-05 03:45:39,401 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:39,401 INFO L276 IsEmpty]: Start isEmpty. Operand 5203 states and 24612 transitions. [2021-06-05 03:45:39,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:39,410 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:39,410 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:39,410 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable807 [2021-06-05 03:45:39,410 INFO L430 AbstractCegarLoop]: === Iteration 809 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:39,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:39,410 INFO L82 PathProgramCache]: Analyzing trace with hash -1955864023, now seen corresponding path program 804 times [2021-06-05 03:45:39,410 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:39,410 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923434081] [2021-06-05 03:45:39,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:39,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:39,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:39,540 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:39,540 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923434081] [2021-06-05 03:45:39,540 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923434081] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:39,540 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:39,540 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:39,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653423387] [2021-06-05 03:45:39,540 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:39,540 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:39,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:39,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:39,541 INFO L87 Difference]: Start difference. First operand 5203 states and 24612 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:39,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:39,654 INFO L93 Difference]: Finished difference Result 11019 states and 49091 transitions. [2021-06-05 03:45:39,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:39,655 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:39,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:39,680 INFO L225 Difference]: With dead ends: 11019 [2021-06-05 03:45:39,681 INFO L226 Difference]: Without dead ends: 10442 [2021-06-05 03:45:39,681 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 153.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:39,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10442 states. [2021-06-05 03:45:39,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10442 to 5101. [2021-06-05 03:45:39,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5101 states, 5100 states have (on average 4.7519607843137255) internal successors, (24235), 5100 states have internal predecessors, (24235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:39,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5101 states to 5101 states and 24235 transitions. [2021-06-05 03:45:39,904 INFO L78 Accepts]: Start accepts. Automaton has 5101 states and 24235 transitions. Word has length 29 [2021-06-05 03:45:39,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:39,904 INFO L482 AbstractCegarLoop]: Abstraction has 5101 states and 24235 transitions. [2021-06-05 03:45:39,904 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:39,904 INFO L276 IsEmpty]: Start isEmpty. Operand 5101 states and 24235 transitions. [2021-06-05 03:45:39,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:39,913 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:39,913 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:39,913 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable808 [2021-06-05 03:45:39,913 INFO L430 AbstractCegarLoop]: === Iteration 810 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:39,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:39,913 INFO L82 PathProgramCache]: Analyzing trace with hash 645399243, now seen corresponding path program 805 times [2021-06-05 03:45:39,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:39,913 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123450663] [2021-06-05 03:45:39,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:39,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:40,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:40,042 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:40,042 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123450663] [2021-06-05 03:45:40,042 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123450663] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:40,042 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:40,042 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:40,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772503156] [2021-06-05 03:45:40,042 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:40,042 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:40,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:40,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:40,043 INFO L87 Difference]: Start difference. First operand 5101 states and 24235 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:40,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:40,153 INFO L93 Difference]: Finished difference Result 10675 states and 47645 transitions. [2021-06-05 03:45:40,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:40,153 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:40,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:40,178 INFO L225 Difference]: With dead ends: 10675 [2021-06-05 03:45:40,178 INFO L226 Difference]: Without dead ends: 10260 [2021-06-05 03:45:40,178 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 152.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:40,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10260 states. [2021-06-05 03:45:40,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10260 to 5149. [2021-06-05 03:45:40,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5149 states, 5148 states have (on average 4.744949494949495) internal successors, (24427), 5148 states have internal predecessors, (24427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:40,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5149 states to 5149 states and 24427 transitions. [2021-06-05 03:45:40,399 INFO L78 Accepts]: Start accepts. Automaton has 5149 states and 24427 transitions. Word has length 29 [2021-06-05 03:45:40,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:40,399 INFO L482 AbstractCegarLoop]: Abstraction has 5149 states and 24427 transitions. [2021-06-05 03:45:40,399 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:40,399 INFO L276 IsEmpty]: Start isEmpty. Operand 5149 states and 24427 transitions. [2021-06-05 03:45:40,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:40,408 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:40,408 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:40,408 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable809 [2021-06-05 03:45:40,408 INFO L430 AbstractCegarLoop]: === Iteration 811 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:40,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:40,408 INFO L82 PathProgramCache]: Analyzing trace with hash 1056807239, now seen corresponding path program 806 times [2021-06-05 03:45:40,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:40,408 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280214944] [2021-06-05 03:45:40,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:40,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:40,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:40,538 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:40,538 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280214944] [2021-06-05 03:45:40,538 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280214944] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:40,538 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:40,538 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:40,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662202664] [2021-06-05 03:45:40,538 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:40,538 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:40,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:40,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:40,538 INFO L87 Difference]: Start difference. First operand 5149 states and 24427 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:40,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:40,646 INFO L93 Difference]: Finished difference Result 10675 states and 47613 transitions. [2021-06-05 03:45:40,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:40,647 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:40,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:40,672 INFO L225 Difference]: With dead ends: 10675 [2021-06-05 03:45:40,672 INFO L226 Difference]: Without dead ends: 10228 [2021-06-05 03:45:40,672 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 136.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:40,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10228 states. [2021-06-05 03:45:40,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10228 to 5117. [2021-06-05 03:45:40,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.749609069585614) internal successors, (24299), 5116 states have internal predecessors, (24299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:40,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24299 transitions. [2021-06-05 03:45:40,897 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24299 transitions. Word has length 29 [2021-06-05 03:45:40,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:40,897 INFO L482 AbstractCegarLoop]: Abstraction has 5117 states and 24299 transitions. [2021-06-05 03:45:40,897 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:40,897 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24299 transitions. [2021-06-05 03:45:40,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:40,906 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:40,906 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:40,906 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable810 [2021-06-05 03:45:40,906 INFO L430 AbstractCegarLoop]: === Iteration 812 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:40,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:40,906 INFO L82 PathProgramCache]: Analyzing trace with hash -1377662295, now seen corresponding path program 807 times [2021-06-05 03:45:40,906 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:40,906 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773435347] [2021-06-05 03:45:40,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:40,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:41,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:41,049 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:41,049 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773435347] [2021-06-05 03:45:41,049 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773435347] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:41,049 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:41,049 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:41,049 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783573263] [2021-06-05 03:45:41,049 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:41,049 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:41,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:41,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:41,049 INFO L87 Difference]: Start difference. First operand 5117 states and 24299 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:41,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:41,160 INFO L93 Difference]: Finished difference Result 10751 states and 47973 transitions. [2021-06-05 03:45:41,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:41,160 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:41,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:41,185 INFO L225 Difference]: With dead ends: 10751 [2021-06-05 03:45:41,185 INFO L226 Difference]: Without dead ends: 10336 [2021-06-05 03:45:41,186 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 167.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:41,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10336 states. [2021-06-05 03:45:41,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10336 to 5165. [2021-06-05 03:45:41,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5165 states, 5164 states have (on average 4.739542989930286) internal successors, (24475), 5164 states have internal predecessors, (24475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:41,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5165 states to 5165 states and 24475 transitions. [2021-06-05 03:45:41,412 INFO L78 Accepts]: Start accepts. Automaton has 5165 states and 24475 transitions. Word has length 29 [2021-06-05 03:45:41,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:41,412 INFO L482 AbstractCegarLoop]: Abstraction has 5165 states and 24475 transitions. [2021-06-05 03:45:41,413 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:41,413 INFO L276 IsEmpty]: Start isEmpty. Operand 5165 states and 24475 transitions. [2021-06-05 03:45:41,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:41,421 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:41,421 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:41,422 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable811 [2021-06-05 03:45:41,422 INFO L430 AbstractCegarLoop]: === Iteration 813 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:41,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:41,422 INFO L82 PathProgramCache]: Analyzing trace with hash 971955851, now seen corresponding path program 808 times [2021-06-05 03:45:41,422 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:41,422 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191404558] [2021-06-05 03:45:41,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:41,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:41,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:41,564 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:41,564 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191404558] [2021-06-05 03:45:41,564 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191404558] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:41,564 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:41,564 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:41,564 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330450696] [2021-06-05 03:45:41,564 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:41,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:41,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:41,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:41,565 INFO L87 Difference]: Start difference. First operand 5165 states and 24475 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:41,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:41,683 INFO L93 Difference]: Finished difference Result 10811 states and 48189 transitions. [2021-06-05 03:45:41,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:41,683 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:41,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:41,709 INFO L225 Difference]: With dead ends: 10811 [2021-06-05 03:45:41,709 INFO L226 Difference]: Without dead ends: 10288 [2021-06-05 03:45:41,710 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 166.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:41,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10288 states. [2021-06-05 03:45:41,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10288 to 5117. [2021-06-05 03:45:41,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.746481626270524) internal successors, (24283), 5116 states have internal predecessors, (24283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:41,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24283 transitions. [2021-06-05 03:45:41,935 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24283 transitions. Word has length 29 [2021-06-05 03:45:41,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:41,935 INFO L482 AbstractCegarLoop]: Abstraction has 5117 states and 24283 transitions. [2021-06-05 03:45:41,935 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:41,935 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24283 transitions. [2021-06-05 03:45:41,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:41,944 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:41,944 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:41,944 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable812 [2021-06-05 03:45:41,944 INFO L430 AbstractCegarLoop]: === Iteration 814 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:41,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:41,944 INFO L82 PathProgramCache]: Analyzing trace with hash -1111877019, now seen corresponding path program 809 times [2021-06-05 03:45:41,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:41,944 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124601610] [2021-06-05 03:45:41,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:41,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:42,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:42,084 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:42,084 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124601610] [2021-06-05 03:45:42,084 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124601610] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:42,084 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:42,084 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:42,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134950807] [2021-06-05 03:45:42,084 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:42,084 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:42,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:42,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:42,085 INFO L87 Difference]: Start difference. First operand 5117 states and 24283 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:42,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:42,184 INFO L93 Difference]: Finished difference Result 10751 states and 47957 transitions. [2021-06-05 03:45:42,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:42,184 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:42,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:42,210 INFO L225 Difference]: With dead ends: 10751 [2021-06-05 03:45:42,210 INFO L226 Difference]: Without dead ends: 10336 [2021-06-05 03:45:42,210 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 146.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:42,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10336 states. [2021-06-05 03:45:42,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10336 to 5165. [2021-06-05 03:45:42,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5165 states, 5164 states have (on average 4.736444616576297) internal successors, (24459), 5164 states have internal predecessors, (24459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:42,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5165 states to 5165 states and 24459 transitions. [2021-06-05 03:45:42,438 INFO L78 Accepts]: Start accepts. Automaton has 5165 states and 24459 transitions. Word has length 29 [2021-06-05 03:45:42,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:42,438 INFO L482 AbstractCegarLoop]: Abstraction has 5165 states and 24459 transitions. [2021-06-05 03:45:42,438 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:42,438 INFO L276 IsEmpty]: Start isEmpty. Operand 5165 states and 24459 transitions. [2021-06-05 03:45:42,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:42,448 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:42,448 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:42,448 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable813 [2021-06-05 03:45:42,448 INFO L430 AbstractCegarLoop]: === Iteration 815 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:42,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:42,448 INFO L82 PathProgramCache]: Analyzing trace with hash -30814393, now seen corresponding path program 810 times [2021-06-05 03:45:42,448 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:42,448 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484675890] [2021-06-05 03:45:42,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:42,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:42,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:42,589 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:42,590 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484675890] [2021-06-05 03:45:42,590 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484675890] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:42,590 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:42,590 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:42,590 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354935828] [2021-06-05 03:45:42,590 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:42,590 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:42,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:42,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:42,590 INFO L87 Difference]: Start difference. First operand 5165 states and 24459 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:42,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:42,722 INFO L93 Difference]: Finished difference Result 10811 states and 48173 transitions. [2021-06-05 03:45:42,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:42,723 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:42,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:42,749 INFO L225 Difference]: With dead ends: 10811 [2021-06-05 03:45:42,749 INFO L226 Difference]: Without dead ends: 10272 [2021-06-05 03:45:42,750 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 163.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:42,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10272 states. [2021-06-05 03:45:42,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10272 to 5101. [2021-06-05 03:45:42,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5101 states, 5100 states have (on average 4.750392156862745) internal successors, (24227), 5100 states have internal predecessors, (24227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:42,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5101 states to 5101 states and 24227 transitions. [2021-06-05 03:45:42,974 INFO L78 Accepts]: Start accepts. Automaton has 5101 states and 24227 transitions. Word has length 29 [2021-06-05 03:45:42,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:42,974 INFO L482 AbstractCegarLoop]: Abstraction has 5101 states and 24227 transitions. [2021-06-05 03:45:42,974 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:42,974 INFO L276 IsEmpty]: Start isEmpty. Operand 5101 states and 24227 transitions. [2021-06-05 03:45:42,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:42,982 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:42,983 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:42,983 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable814 [2021-06-05 03:45:42,983 INFO L430 AbstractCegarLoop]: === Iteration 816 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:42,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:42,983 INFO L82 PathProgramCache]: Analyzing trace with hash -1253480731, now seen corresponding path program 811 times [2021-06-05 03:45:42,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:42,983 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331390232] [2021-06-05 03:45:42,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:42,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:43,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:43,119 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:43,119 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331390232] [2021-06-05 03:45:43,119 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331390232] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:43,119 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:43,119 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:43,119 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922046483] [2021-06-05 03:45:43,119 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:43,119 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:43,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:43,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:43,119 INFO L87 Difference]: Start difference. First operand 5101 states and 24227 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:43,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:43,250 INFO L93 Difference]: Finished difference Result 10931 states and 48795 transitions. [2021-06-05 03:45:43,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:43,251 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:43,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:43,277 INFO L225 Difference]: With dead ends: 10931 [2021-06-05 03:45:43,277 INFO L226 Difference]: Without dead ends: 10454 [2021-06-05 03:45:43,278 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 160.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:43,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10454 states. [2021-06-05 03:45:43,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10454 to 5173. [2021-06-05 03:45:43,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5173 states, 5172 states have (on average 4.742266047950503) internal successors, (24527), 5172 states have internal predecessors, (24527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:43,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5173 states to 5173 states and 24527 transitions. [2021-06-05 03:45:43,509 INFO L78 Accepts]: Start accepts. Automaton has 5173 states and 24527 transitions. Word has length 29 [2021-06-05 03:45:43,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:43,509 INFO L482 AbstractCegarLoop]: Abstraction has 5173 states and 24527 transitions. [2021-06-05 03:45:43,509 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:43,509 INFO L276 IsEmpty]: Start isEmpty. Operand 5173 states and 24527 transitions. [2021-06-05 03:45:43,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:43,518 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:43,518 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:43,518 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable815 [2021-06-05 03:45:43,518 INFO L430 AbstractCegarLoop]: === Iteration 817 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:43,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:43,518 INFO L82 PathProgramCache]: Analyzing trace with hash -172418105, now seen corresponding path program 812 times [2021-06-05 03:45:43,518 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:43,518 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169872840] [2021-06-05 03:45:43,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:43,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:43,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:43,654 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:43,654 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169872840] [2021-06-05 03:45:43,654 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169872840] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:43,654 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:43,654 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:43,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900689332] [2021-06-05 03:45:43,655 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:43,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:43,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:43,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:43,655 INFO L87 Difference]: Start difference. First operand 5173 states and 24527 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:43,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:43,753 INFO L93 Difference]: Finished difference Result 10869 states and 48478 transitions. [2021-06-05 03:45:43,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:43,754 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:43,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:43,780 INFO L225 Difference]: With dead ends: 10869 [2021-06-05 03:45:43,780 INFO L226 Difference]: Without dead ends: 10406 [2021-06-05 03:45:43,780 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 143.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:43,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10406 states. [2021-06-05 03:45:43,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10406 to 5125. [2021-06-05 03:45:43,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5125 states, 5124 states have (on average 4.7476580796252925) internal successors, (24327), 5124 states have internal predecessors, (24327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:44,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5125 states to 5125 states and 24327 transitions. [2021-06-05 03:45:44,009 INFO L78 Accepts]: Start accepts. Automaton has 5125 states and 24327 transitions. Word has length 29 [2021-06-05 03:45:44,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:44,010 INFO L482 AbstractCegarLoop]: Abstraction has 5125 states and 24327 transitions. [2021-06-05 03:45:44,010 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:44,010 INFO L276 IsEmpty]: Start isEmpty. Operand 5125 states and 24327 transitions. [2021-06-05 03:45:44,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:44,019 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:44,019 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:44,019 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable816 [2021-06-05 03:45:44,019 INFO L430 AbstractCegarLoop]: === Iteration 818 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:44,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:44,019 INFO L82 PathProgramCache]: Analyzing trace with hash -1734382777, now seen corresponding path program 813 times [2021-06-05 03:45:44,019 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:44,019 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708064588] [2021-06-05 03:45:44,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:44,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:44,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:44,146 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:44,146 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708064588] [2021-06-05 03:45:44,146 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708064588] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:44,146 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:44,146 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:44,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952621000] [2021-06-05 03:45:44,146 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:44,146 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:44,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:44,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:44,146 INFO L87 Difference]: Start difference. First operand 5125 states and 24327 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:44,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:44,258 INFO L93 Difference]: Finished difference Result 11021 states and 49182 transitions. [2021-06-05 03:45:44,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:44,259 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:44,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:44,285 INFO L225 Difference]: With dead ends: 11021 [2021-06-05 03:45:44,286 INFO L226 Difference]: Without dead ends: 10544 [2021-06-05 03:45:44,286 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 151.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:44,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10544 states. [2021-06-05 03:45:44,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10544 to 5203. [2021-06-05 03:45:44,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5203 states, 5202 states have (on average 4.73279507881584) internal successors, (24620), 5202 states have internal predecessors, (24620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:44,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5203 states to 5203 states and 24620 transitions. [2021-06-05 03:45:44,516 INFO L78 Accepts]: Start accepts. Automaton has 5203 states and 24620 transitions. Word has length 29 [2021-06-05 03:45:44,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:44,516 INFO L482 AbstractCegarLoop]: Abstraction has 5203 states and 24620 transitions. [2021-06-05 03:45:44,516 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:44,516 INFO L276 IsEmpty]: Start isEmpty. Operand 5203 states and 24620 transitions. [2021-06-05 03:45:44,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:44,525 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:44,525 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:44,526 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable817 [2021-06-05 03:45:44,526 INFO L430 AbstractCegarLoop]: === Iteration 819 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:44,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:44,526 INFO L82 PathProgramCache]: Analyzing trace with hash 872338247, now seen corresponding path program 814 times [2021-06-05 03:45:44,526 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:44,526 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132714374] [2021-06-05 03:45:44,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:44,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:44,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:44,652 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:44,652 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132714374] [2021-06-05 03:45:44,652 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132714374] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:44,652 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:44,652 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:44,653 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273913092] [2021-06-05 03:45:44,653 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:44,653 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:44,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:44,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:44,653 INFO L87 Difference]: Start difference. First operand 5203 states and 24620 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:44,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:44,766 INFO L93 Difference]: Finished difference Result 11019 states and 49099 transitions. [2021-06-05 03:45:44,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:44,766 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:44,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:44,793 INFO L225 Difference]: With dead ends: 11019 [2021-06-05 03:45:44,793 INFO L226 Difference]: Without dead ends: 10466 [2021-06-05 03:45:44,793 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 150.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:44,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10466 states. [2021-06-05 03:45:45,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10466 to 5125. [2021-06-05 03:45:45,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5125 states, 5124 states have (on average 4.742974238875878) internal successors, (24303), 5124 states have internal predecessors, (24303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:45,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5125 states to 5125 states and 24303 transitions. [2021-06-05 03:45:45,023 INFO L78 Accepts]: Start accepts. Automaton has 5125 states and 24303 transitions. Word has length 29 [2021-06-05 03:45:45,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:45,023 INFO L482 AbstractCegarLoop]: Abstraction has 5125 states and 24303 transitions. [2021-06-05 03:45:45,023 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:45,023 INFO L276 IsEmpty]: Start isEmpty. Operand 5125 states and 24303 transitions. [2021-06-05 03:45:45,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:45,032 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:45,032 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:45,032 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable818 [2021-06-05 03:45:45,032 INFO L430 AbstractCegarLoop]: === Iteration 820 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:45,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:45,032 INFO L82 PathProgramCache]: Analyzing trace with hash -1346377815, now seen corresponding path program 815 times [2021-06-05 03:45:45,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:45,032 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764392328] [2021-06-05 03:45:45,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:45,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:45,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:45,171 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:45,171 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764392328] [2021-06-05 03:45:45,171 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764392328] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:45,171 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:45,171 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:45,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746486472] [2021-06-05 03:45:45,171 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:45,171 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:45,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:45,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:45,171 INFO L87 Difference]: Start difference. First operand 5125 states and 24303 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:45,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:45,265 INFO L93 Difference]: Finished difference Result 10867 states and 48473 transitions. [2021-06-05 03:45:45,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:45,265 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:45,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:45,291 INFO L225 Difference]: With dead ends: 10867 [2021-06-05 03:45:45,292 INFO L226 Difference]: Without dead ends: 10452 [2021-06-05 03:45:45,292 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 146.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:45,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10452 states. [2021-06-05 03:45:45,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10452 to 5173. [2021-06-05 03:45:45,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5173 states, 5172 states have (on average 4.7329853054911055) internal successors, (24479), 5172 states have internal predecessors, (24479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:45,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5173 states to 5173 states and 24479 transitions. [2021-06-05 03:45:45,530 INFO L78 Accepts]: Start accepts. Automaton has 5173 states and 24479 transitions. Word has length 29 [2021-06-05 03:45:45,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:45,530 INFO L482 AbstractCegarLoop]: Abstraction has 5173 states and 24479 transitions. [2021-06-05 03:45:45,530 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:45,530 INFO L276 IsEmpty]: Start isEmpty. Operand 5173 states and 24479 transitions. [2021-06-05 03:45:45,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:45,539 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:45,539 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:45,539 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable819 [2021-06-05 03:45:45,539 INFO L430 AbstractCegarLoop]: === Iteration 821 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:45,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:45,539 INFO L82 PathProgramCache]: Analyzing trace with hash 2101792519, now seen corresponding path program 816 times [2021-06-05 03:45:45,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:45,540 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619470093] [2021-06-05 03:45:45,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:45,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:45,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:45,678 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:45,678 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619470093] [2021-06-05 03:45:45,678 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619470093] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:45,678 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:45,678 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:45,678 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755695967] [2021-06-05 03:45:45,678 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:45,678 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:45,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:45,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:45,678 INFO L87 Difference]: Start difference. First operand 5173 states and 24479 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:45,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:45,813 INFO L93 Difference]: Finished difference Result 10927 states and 48689 transitions. [2021-06-05 03:45:45,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:45,814 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:45,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:45,840 INFO L225 Difference]: With dead ends: 10927 [2021-06-05 03:45:45,840 INFO L226 Difference]: Without dead ends: 10372 [2021-06-05 03:45:45,840 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 162.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:45,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10372 states. [2021-06-05 03:45:46,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10372 to 5093. [2021-06-05 03:45:46,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5093 states, 5092 states have (on average 4.753142183817753) internal successors, (24203), 5092 states have internal predecessors, (24203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:46,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5093 states to 5093 states and 24203 transitions. [2021-06-05 03:45:46,071 INFO L78 Accepts]: Start accepts. Automaton has 5093 states and 24203 transitions. Word has length 29 [2021-06-05 03:45:46,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:46,071 INFO L482 AbstractCegarLoop]: Abstraction has 5093 states and 24203 transitions. [2021-06-05 03:45:46,072 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:46,072 INFO L276 IsEmpty]: Start isEmpty. Operand 5093 states and 24203 transitions. [2021-06-05 03:45:46,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:46,080 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:46,080 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:46,081 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable820 [2021-06-05 03:45:46,081 INFO L430 AbstractCegarLoop]: === Iteration 822 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:46,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:46,081 INFO L82 PathProgramCache]: Analyzing trace with hash -352136253, now seen corresponding path program 817 times [2021-06-05 03:45:46,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:46,081 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479499864] [2021-06-05 03:45:46,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:46,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:46,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:46,206 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:46,206 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479499864] [2021-06-05 03:45:46,206 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479499864] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:46,206 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:46,206 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:46,207 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351275078] [2021-06-05 03:45:46,207 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:46,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:46,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:46,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:46,207 INFO L87 Difference]: Start difference. First operand 5093 states and 24203 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:46,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:46,308 INFO L93 Difference]: Finished difference Result 11901 states and 52981 transitions. [2021-06-05 03:45:46,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:46,309 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:46,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:46,339 INFO L225 Difference]: With dead ends: 11901 [2021-06-05 03:45:46,339 INFO L226 Difference]: Without dead ends: 11359 [2021-06-05 03:45:46,339 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 132.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:46,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11359 states. [2021-06-05 03:45:46,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11359 to 5328. [2021-06-05 03:45:46,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5328 states, 5327 states have (on average 4.724235029097053) internal successors, (25166), 5327 states have internal predecessors, (25166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:46,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5328 states to 5328 states and 25166 transitions. [2021-06-05 03:45:46,585 INFO L78 Accepts]: Start accepts. Automaton has 5328 states and 25166 transitions. Word has length 29 [2021-06-05 03:45:46,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:46,585 INFO L482 AbstractCegarLoop]: Abstraction has 5328 states and 25166 transitions. [2021-06-05 03:45:46,585 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:46,585 INFO L276 IsEmpty]: Start isEmpty. Operand 5328 states and 25166 transitions. [2021-06-05 03:45:46,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:46,594 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:46,595 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:46,595 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable821 [2021-06-05 03:45:46,595 INFO L430 AbstractCegarLoop]: === Iteration 823 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:46,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:46,595 INFO L82 PathProgramCache]: Analyzing trace with hash 728926373, now seen corresponding path program 818 times [2021-06-05 03:45:46,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:46,595 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119137586] [2021-06-05 03:45:46,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:46,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:46,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:46,719 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:46,719 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119137586] [2021-06-05 03:45:46,719 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119137586] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:46,719 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:46,719 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:46,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660919104] [2021-06-05 03:45:46,720 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:46,720 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:46,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:46,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:46,720 INFO L87 Difference]: Start difference. First operand 5328 states and 25166 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:46,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:46,835 INFO L93 Difference]: Finished difference Result 11836 states and 52612 transitions. [2021-06-05 03:45:46,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:46,835 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:46,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:46,863 INFO L225 Difference]: With dead ends: 11836 [2021-06-05 03:45:46,863 INFO L226 Difference]: Without dead ends: 11216 [2021-06-05 03:45:46,863 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 148.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:46,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11216 states. [2021-06-05 03:45:47,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11216 to 5185. [2021-06-05 03:45:47,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5185 states, 5184 states have (on average 4.7436342592592595) internal successors, (24591), 5184 states have internal predecessors, (24591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:47,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5185 states to 5185 states and 24591 transitions. [2021-06-05 03:45:47,108 INFO L78 Accepts]: Start accepts. Automaton has 5185 states and 24591 transitions. Word has length 29 [2021-06-05 03:45:47,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:47,108 INFO L482 AbstractCegarLoop]: Abstraction has 5185 states and 24591 transitions. [2021-06-05 03:45:47,108 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:47,108 INFO L276 IsEmpty]: Start isEmpty. Operand 5185 states and 24591 transitions. [2021-06-05 03:45:47,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:47,118 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:47,118 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:47,118 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable822 [2021-06-05 03:45:47,118 INFO L430 AbstractCegarLoop]: === Iteration 824 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:47,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:47,118 INFO L82 PathProgramCache]: Analyzing trace with hash -833038299, now seen corresponding path program 819 times [2021-06-05 03:45:47,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:47,118 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185218432] [2021-06-05 03:45:47,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:47,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:47,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:47,251 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:47,251 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185218432] [2021-06-05 03:45:47,251 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185218432] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:47,251 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:47,251 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:47,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549880279] [2021-06-05 03:45:47,251 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:47,251 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:47,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:47,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:47,252 INFO L87 Difference]: Start difference. First operand 5185 states and 24591 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:47,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:47,349 INFO L93 Difference]: Finished difference Result 11776 states and 52394 transitions. [2021-06-05 03:45:47,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:47,349 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:47,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:47,378 INFO L225 Difference]: With dead ends: 11776 [2021-06-05 03:45:47,378 INFO L226 Difference]: Without dead ends: 11234 [2021-06-05 03:45:47,378 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 139.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:47,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11234 states. [2021-06-05 03:45:47,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11234 to 5265. [2021-06-05 03:45:47,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5265 states, 5264 states have (on average 4.726253799392097) internal successors, (24879), 5264 states have internal predecessors, (24879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:47,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5265 states to 5265 states and 24879 transitions. [2021-06-05 03:45:47,616 INFO L78 Accepts]: Start accepts. Automaton has 5265 states and 24879 transitions. Word has length 29 [2021-06-05 03:45:47,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:47,616 INFO L482 AbstractCegarLoop]: Abstraction has 5265 states and 24879 transitions. [2021-06-05 03:45:47,616 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:47,616 INFO L276 IsEmpty]: Start isEmpty. Operand 5265 states and 24879 transitions. [2021-06-05 03:45:47,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:47,678 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:47,678 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:47,678 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable823 [2021-06-05 03:45:47,678 INFO L430 AbstractCegarLoop]: === Iteration 825 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:47,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:47,678 INFO L82 PathProgramCache]: Analyzing trace with hash 1773682725, now seen corresponding path program 820 times [2021-06-05 03:45:47,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:47,679 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330233800] [2021-06-05 03:45:47,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:47,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:47,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:47,808 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:47,808 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330233800] [2021-06-05 03:45:47,808 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330233800] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:47,808 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:47,808 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:47,808 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608480610] [2021-06-05 03:45:47,809 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:47,809 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:47,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:47,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:47,809 INFO L87 Difference]: Start difference. First operand 5265 states and 24879 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:47,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:47,911 INFO L93 Difference]: Finished difference Result 11649 states and 51787 transitions. [2021-06-05 03:45:47,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:47,911 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:47,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:47,939 INFO L225 Difference]: With dead ends: 11649 [2021-06-05 03:45:47,939 INFO L226 Difference]: Without dead ends: 11154 [2021-06-05 03:45:47,939 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 136.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:48,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11154 states. [2021-06-05 03:45:48,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11154 to 5185. [2021-06-05 03:45:48,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5185 states, 5184 states have (on average 4.7359182098765435) internal successors, (24551), 5184 states have internal predecessors, (24551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:48,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5185 states to 5185 states and 24551 transitions. [2021-06-05 03:45:48,175 INFO L78 Accepts]: Start accepts. Automaton has 5185 states and 24551 transitions. Word has length 29 [2021-06-05 03:45:48,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:48,175 INFO L482 AbstractCegarLoop]: Abstraction has 5185 states and 24551 transitions. [2021-06-05 03:45:48,175 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:48,175 INFO L276 IsEmpty]: Start isEmpty. Operand 5185 states and 24551 transitions. [2021-06-05 03:45:48,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:48,184 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:48,184 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:48,184 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable824 [2021-06-05 03:45:48,184 INFO L430 AbstractCegarLoop]: === Iteration 826 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:48,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:48,184 INFO L82 PathProgramCache]: Analyzing trace with hash -445033337, now seen corresponding path program 821 times [2021-06-05 03:45:48,184 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:48,184 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413376078] [2021-06-05 03:45:48,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:48,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:48,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:48,314 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:48,314 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413376078] [2021-06-05 03:45:48,314 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413376078] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:48,314 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:48,314 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:48,314 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772530535] [2021-06-05 03:45:48,314 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:48,315 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:48,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:48,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:48,315 INFO L87 Difference]: Start difference. First operand 5185 states and 24551 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:48,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:48,431 INFO L93 Difference]: Finished difference Result 11614 states and 51694 transitions. [2021-06-05 03:45:48,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:48,432 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:48,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:48,459 INFO L225 Difference]: With dead ends: 11614 [2021-06-05 03:45:48,459 INFO L226 Difference]: Without dead ends: 11137 [2021-06-05 03:45:48,460 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 153.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:48,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11137 states. [2021-06-05 03:45:48,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11137 to 5233. [2021-06-05 03:45:48,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5233 states, 5232 states have (on average 4.726108562691132) internal successors, (24727), 5232 states have internal predecessors, (24727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:48,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5233 states to 5233 states and 24727 transitions. [2021-06-05 03:45:48,695 INFO L78 Accepts]: Start accepts. Automaton has 5233 states and 24727 transitions. Word has length 29 [2021-06-05 03:45:48,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:48,695 INFO L482 AbstractCegarLoop]: Abstraction has 5233 states and 24727 transitions. [2021-06-05 03:45:48,695 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:48,695 INFO L276 IsEmpty]: Start isEmpty. Operand 5233 states and 24727 transitions. [2021-06-05 03:45:48,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:48,704 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:48,704 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:48,704 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable825 [2021-06-05 03:45:48,704 INFO L430 AbstractCegarLoop]: === Iteration 827 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:48,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:48,704 INFO L82 PathProgramCache]: Analyzing trace with hash -1291830299, now seen corresponding path program 822 times [2021-06-05 03:45:48,704 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:48,704 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229351554] [2021-06-05 03:45:48,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:48,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:48,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:48,836 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:48,836 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229351554] [2021-06-05 03:45:48,836 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229351554] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:48,836 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:48,836 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:48,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86006678] [2021-06-05 03:45:48,836 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:48,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:48,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:48,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:48,837 INFO L87 Difference]: Start difference. First operand 5233 states and 24727 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:48,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:48,938 INFO L93 Difference]: Finished difference Result 11552 states and 51377 transitions. [2021-06-05 03:45:48,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:48,938 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:48,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:48,965 INFO L225 Difference]: With dead ends: 11552 [2021-06-05 03:45:48,966 INFO L226 Difference]: Without dead ends: 11033 [2021-06-05 03:45:48,966 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 138.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:49,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11033 states. [2021-06-05 03:45:49,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11033 to 5129. [2021-06-05 03:45:49,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5129 states, 5128 states have (on average 4.748634945397816) internal successors, (24351), 5128 states have internal predecessors, (24351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:49,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5129 states to 5129 states and 24351 transitions. [2021-06-05 03:45:49,198 INFO L78 Accepts]: Start accepts. Automaton has 5129 states and 24351 transitions. Word has length 29 [2021-06-05 03:45:49,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:49,198 INFO L482 AbstractCegarLoop]: Abstraction has 5129 states and 24351 transitions. [2021-06-05 03:45:49,198 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:49,198 INFO L276 IsEmpty]: Start isEmpty. Operand 5129 states and 24351 transitions. [2021-06-05 03:45:49,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:49,207 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:49,207 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:49,207 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable826 [2021-06-05 03:45:49,207 INFO L430 AbstractCegarLoop]: === Iteration 828 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:49,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:49,207 INFO L82 PathProgramCache]: Analyzing trace with hash 1357465509, now seen corresponding path program 823 times [2021-06-05 03:45:49,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:49,207 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089324002] [2021-06-05 03:45:49,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:49,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:49,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:49,324 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:49,324 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089324002] [2021-06-05 03:45:49,324 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089324002] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:49,324 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:49,324 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:49,324 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64421640] [2021-06-05 03:45:49,324 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:49,324 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:49,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:49,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:49,324 INFO L87 Difference]: Start difference. First operand 5129 states and 24351 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:49,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:49,427 INFO L93 Difference]: Finished difference Result 12052 states and 53640 transitions. [2021-06-05 03:45:49,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:49,427 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:49,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:49,456 INFO L225 Difference]: With dead ends: 12052 [2021-06-05 03:45:49,456 INFO L226 Difference]: Without dead ends: 11510 [2021-06-05 03:45:49,456 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 123.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:49,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11510 states. [2021-06-05 03:45:49,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11510 to 5359. [2021-06-05 03:45:49,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5359 states, 5358 states have (on average 4.715752146323255) internal successors, (25267), 5358 states have internal predecessors, (25267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:49,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5359 states to 5359 states and 25267 transitions. [2021-06-05 03:45:49,699 INFO L78 Accepts]: Start accepts. Automaton has 5359 states and 25267 transitions. Word has length 29 [2021-06-05 03:45:49,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:49,699 INFO L482 AbstractCegarLoop]: Abstraction has 5359 states and 25267 transitions. [2021-06-05 03:45:49,699 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:49,699 INFO L276 IsEmpty]: Start isEmpty. Operand 5359 states and 25267 transitions. [2021-06-05 03:45:49,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:49,708 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:49,708 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:49,709 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable827 [2021-06-05 03:45:49,709 INFO L430 AbstractCegarLoop]: === Iteration 829 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:49,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:49,709 INFO L82 PathProgramCache]: Analyzing trace with hash -1856439161, now seen corresponding path program 824 times [2021-06-05 03:45:49,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:49,709 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910466596] [2021-06-05 03:45:49,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:49,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:49,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:49,825 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:49,825 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910466596] [2021-06-05 03:45:49,825 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910466596] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:49,825 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:49,825 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:49,825 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430021722] [2021-06-05 03:45:49,825 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:49,825 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:49,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:49,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:49,825 INFO L87 Difference]: Start difference. First operand 5359 states and 25267 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:49,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:49,943 INFO L93 Difference]: Finished difference Result 11987 states and 53271 transitions. [2021-06-05 03:45:49,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:49,943 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:49,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:49,972 INFO L225 Difference]: With dead ends: 11987 [2021-06-05 03:45:49,972 INFO L226 Difference]: Without dead ends: 11367 [2021-06-05 03:45:49,972 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 139.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:50,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11367 states. [2021-06-05 03:45:50,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11367 to 5216. [2021-06-05 03:45:50,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5216 states, 5215 states have (on average 4.731927133269415) internal successors, (24677), 5215 states have internal predecessors, (24677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:50,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5216 states to 5216 states and 24677 transitions. [2021-06-05 03:45:50,210 INFO L78 Accepts]: Start accepts. Automaton has 5216 states and 24677 transitions. Word has length 29 [2021-06-05 03:45:50,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:50,210 INFO L482 AbstractCegarLoop]: Abstraction has 5216 states and 24677 transitions. [2021-06-05 03:45:50,210 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:50,210 INFO L276 IsEmpty]: Start isEmpty. Operand 5216 states and 24677 transitions. [2021-06-05 03:45:50,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:50,219 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:50,219 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:50,219 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable828 [2021-06-05 03:45:50,219 INFO L430 AbstractCegarLoop]: === Iteration 830 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:50,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:50,220 INFO L82 PathProgramCache]: Analyzing trace with hash -1844531291, now seen corresponding path program 825 times [2021-06-05 03:45:50,220 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:50,220 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977197167] [2021-06-05 03:45:50,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:50,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:50,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:50,336 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:50,336 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977197167] [2021-06-05 03:45:50,336 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977197167] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:50,336 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:50,336 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:50,336 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966551436] [2021-06-05 03:45:50,336 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:50,336 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:50,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:50,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:50,337 INFO L87 Difference]: Start difference. First operand 5216 states and 24677 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:50,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:50,443 INFO L93 Difference]: Finished difference Result 12017 states and 53449 transitions. [2021-06-05 03:45:50,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:50,444 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:50,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:50,472 INFO L225 Difference]: With dead ends: 12017 [2021-06-05 03:45:50,473 INFO L226 Difference]: Without dead ends: 11475 [2021-06-05 03:45:50,473 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 123.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:50,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11475 states. [2021-06-05 03:45:50,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11475 to 5326. [2021-06-05 03:45:50,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5326 states, 5325 states have (on average 4.710234741784038) internal successors, (25082), 5325 states have internal predecessors, (25082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:50,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5326 states to 5326 states and 25082 transitions. [2021-06-05 03:45:50,714 INFO L78 Accepts]: Start accepts. Automaton has 5326 states and 25082 transitions. Word has length 29 [2021-06-05 03:45:50,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:50,714 INFO L482 AbstractCegarLoop]: Abstraction has 5326 states and 25082 transitions. [2021-06-05 03:45:50,714 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:50,714 INFO L276 IsEmpty]: Start isEmpty. Operand 5326 states and 25082 transitions. [2021-06-05 03:45:50,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:50,723 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:50,723 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:50,723 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable829 [2021-06-05 03:45:50,723 INFO L430 AbstractCegarLoop]: === Iteration 831 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:50,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:50,723 INFO L82 PathProgramCache]: Analyzing trace with hash -1794963547, now seen corresponding path program 826 times [2021-06-05 03:45:50,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:50,723 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852946723] [2021-06-05 03:45:50,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:50,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:50,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:50,839 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:50,839 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852946723] [2021-06-05 03:45:50,839 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852946723] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:50,839 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:50,839 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:50,839 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036179425] [2021-06-05 03:45:50,839 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:50,840 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:50,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:50,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:50,840 INFO L87 Difference]: Start difference. First operand 5326 states and 25082 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:50,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:50,960 INFO L93 Difference]: Finished difference Result 11950 states and 53076 transitions. [2021-06-05 03:45:50,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:50,961 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:50,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:50,989 INFO L225 Difference]: With dead ends: 11950 [2021-06-05 03:45:50,989 INFO L226 Difference]: Without dead ends: 11365 [2021-06-05 03:45:50,989 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 139.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:51,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11365 states. [2021-06-05 03:45:51,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11365 to 5216. [2021-06-05 03:45:51,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5216 states, 5215 states have (on average 4.721380632790029) internal successors, (24622), 5215 states have internal predecessors, (24622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:51,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5216 states to 5216 states and 24622 transitions. [2021-06-05 03:45:51,229 INFO L78 Accepts]: Start accepts. Automaton has 5216 states and 24622 transitions. Word has length 29 [2021-06-05 03:45:51,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:51,229 INFO L482 AbstractCegarLoop]: Abstraction has 5216 states and 24622 transitions. [2021-06-05 03:45:51,229 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:51,229 INFO L276 IsEmpty]: Start isEmpty. Operand 5216 states and 24622 transitions. [2021-06-05 03:45:51,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:51,238 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:51,238 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:51,238 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable830 [2021-06-05 03:45:51,238 INFO L430 AbstractCegarLoop]: === Iteration 832 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:51,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:51,238 INFO L82 PathProgramCache]: Analyzing trace with hash -1456526329, now seen corresponding path program 827 times [2021-06-05 03:45:51,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:51,238 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564197521] [2021-06-05 03:45:51,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:51,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:51,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:51,354 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:51,354 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564197521] [2021-06-05 03:45:51,354 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564197521] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:51,355 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:51,355 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:51,355 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990413849] [2021-06-05 03:45:51,355 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:51,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:51,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:51,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:51,355 INFO L87 Difference]: Start difference. First operand 5216 states and 24622 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:51,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:51,475 INFO L93 Difference]: Finished difference Result 11855 states and 52734 transitions. [2021-06-05 03:45:51,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:51,475 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:51,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:51,503 INFO L225 Difference]: With dead ends: 11855 [2021-06-05 03:45:51,503 INFO L226 Difference]: Without dead ends: 11378 [2021-06-05 03:45:51,503 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 140.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:51,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11378 states. [2021-06-05 03:45:51,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11378 to 5294. [2021-06-05 03:45:51,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5294 states, 5293 states have (on average 4.707160400529) internal successors, (24915), 5293 states have internal predecessors, (24915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:51,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5294 states to 5294 states and 24915 transitions. [2021-06-05 03:45:51,740 INFO L78 Accepts]: Start accepts. Automaton has 5294 states and 24915 transitions. Word has length 29 [2021-06-05 03:45:51,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:51,740 INFO L482 AbstractCegarLoop]: Abstraction has 5294 states and 24915 transitions. [2021-06-05 03:45:51,740 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:51,740 INFO L276 IsEmpty]: Start isEmpty. Operand 5294 states and 24915 transitions. [2021-06-05 03:45:51,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:51,749 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:51,749 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:51,749 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable831 [2021-06-05 03:45:51,749 INFO L430 AbstractCegarLoop]: === Iteration 833 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:51,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:51,750 INFO L82 PathProgramCache]: Analyzing trace with hash 722361317, now seen corresponding path program 828 times [2021-06-05 03:45:51,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:51,750 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141353014] [2021-06-05 03:45:51,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:51,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:51,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:51,866 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:51,866 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141353014] [2021-06-05 03:45:51,866 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141353014] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:51,866 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:51,866 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:51,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900206468] [2021-06-05 03:45:51,866 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:51,866 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:51,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:51,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:51,866 INFO L87 Difference]: Start difference. First operand 5294 states and 24915 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:51,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:51,982 INFO L93 Difference]: Finished difference Result 11853 states and 52651 transitions. [2021-06-05 03:45:51,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:51,983 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:51,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:52,011 INFO L225 Difference]: With dead ends: 11853 [2021-06-05 03:45:52,011 INFO L226 Difference]: Without dead ends: 11213 [2021-06-05 03:45:52,011 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 139.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:52,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11213 states. [2021-06-05 03:45:52,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11213 to 5129. [2021-06-05 03:45:52,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5129 states, 5128 states have (on average 4.741614664586583) internal successors, (24315), 5128 states have internal predecessors, (24315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:52,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5129 states to 5129 states and 24315 transitions. [2021-06-05 03:45:52,244 INFO L78 Accepts]: Start accepts. Automaton has 5129 states and 24315 transitions. Word has length 29 [2021-06-05 03:45:52,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:52,244 INFO L482 AbstractCegarLoop]: Abstraction has 5129 states and 24315 transitions. [2021-06-05 03:45:52,244 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:52,244 INFO L276 IsEmpty]: Start isEmpty. Operand 5129 states and 24315 transitions. [2021-06-05 03:45:52,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:52,252 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:52,252 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:52,252 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable832 [2021-06-05 03:45:52,253 INFO L430 AbstractCegarLoop]: === Iteration 834 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:52,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:52,253 INFO L82 PathProgramCache]: Analyzing trace with hash 568079239, now seen corresponding path program 829 times [2021-06-05 03:45:52,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:52,253 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032067332] [2021-06-05 03:45:52,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:52,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:52,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:52,384 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:52,384 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032067332] [2021-06-05 03:45:52,384 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032067332] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:52,384 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:52,384 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:52,384 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558083103] [2021-06-05 03:45:52,384 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:52,384 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:52,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:52,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:52,384 INFO L87 Difference]: Start difference. First operand 5129 states and 24315 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:52,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:52,496 INFO L93 Difference]: Finished difference Result 11725 states and 52202 transitions. [2021-06-05 03:45:52,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:52,496 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:52,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:52,524 INFO L225 Difference]: With dead ends: 11725 [2021-06-05 03:45:52,524 INFO L226 Difference]: Without dead ends: 11183 [2021-06-05 03:45:52,524 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 138.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:52,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11183 states. [2021-06-05 03:45:52,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11183 to 5249. [2021-06-05 03:45:52,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5249 states, 5248 states have (on average 4.726943597560975) internal successors, (24807), 5248 states have internal predecessors, (24807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:52,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5249 states to 5249 states and 24807 transitions. [2021-06-05 03:45:52,759 INFO L78 Accepts]: Start accepts. Automaton has 5249 states and 24807 transitions. Word has length 29 [2021-06-05 03:45:52,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:52,760 INFO L482 AbstractCegarLoop]: Abstraction has 5249 states and 24807 transitions. [2021-06-05 03:45:52,760 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:52,760 INFO L276 IsEmpty]: Start isEmpty. Operand 5249 states and 24807 transitions. [2021-06-05 03:45:52,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:52,768 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:52,768 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:52,769 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable833 [2021-06-05 03:45:52,769 INFO L430 AbstractCegarLoop]: === Iteration 835 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:52,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:52,769 INFO L82 PathProgramCache]: Analyzing trace with hash -1120167033, now seen corresponding path program 830 times [2021-06-05 03:45:52,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:52,769 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010382083] [2021-06-05 03:45:52,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:52,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:52,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:52,899 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:52,899 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010382083] [2021-06-05 03:45:52,899 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010382083] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:52,899 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:52,899 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:52,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451028337] [2021-06-05 03:45:52,899 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:52,899 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:52,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:52,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:52,900 INFO L87 Difference]: Start difference. First operand 5249 states and 24807 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:53,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:53,003 INFO L93 Difference]: Finished difference Result 11598 states and 51595 transitions. [2021-06-05 03:45:53,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:53,003 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:53,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:53,030 INFO L225 Difference]: With dead ends: 11598 [2021-06-05 03:45:53,031 INFO L226 Difference]: Without dead ends: 11103 [2021-06-05 03:45:53,031 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 137.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:53,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11103 states. [2021-06-05 03:45:53,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11103 to 5169. [2021-06-05 03:45:53,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5169 states, 5168 states have (on average 4.736648606811145) internal successors, (24479), 5168 states have internal predecessors, (24479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:53,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5169 states to 5169 states and 24479 transitions. [2021-06-05 03:45:53,263 INFO L78 Accepts]: Start accepts. Automaton has 5169 states and 24479 transitions. Word has length 29 [2021-06-05 03:45:53,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:53,264 INFO L482 AbstractCegarLoop]: Abstraction has 5169 states and 24479 transitions. [2021-06-05 03:45:53,264 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:53,264 INFO L276 IsEmpty]: Start isEmpty. Operand 5169 states and 24479 transitions. [2021-06-05 03:45:53,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:53,272 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:53,272 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:53,272 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable834 [2021-06-05 03:45:53,272 INFO L430 AbstractCegarLoop]: === Iteration 836 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:53,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:53,273 INFO L82 PathProgramCache]: Analyzing trace with hash -1454982299, now seen corresponding path program 831 times [2021-06-05 03:45:53,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:53,273 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951270569] [2021-06-05 03:45:53,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:53,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:53,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:53,396 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:53,396 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951270569] [2021-06-05 03:45:53,396 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951270569] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:53,396 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:53,396 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:53,396 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204338567] [2021-06-05 03:45:53,396 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:53,396 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:53,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:53,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:53,397 INFO L87 Difference]: Start difference. First operand 5169 states and 24479 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:53,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:53,495 INFO L93 Difference]: Finished difference Result 11815 states and 52573 transitions. [2021-06-05 03:45:53,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:53,495 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:53,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:53,523 INFO L225 Difference]: With dead ends: 11815 [2021-06-05 03:45:53,523 INFO L226 Difference]: Without dead ends: 11273 [2021-06-05 03:45:53,524 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 130.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:53,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11273 states. [2021-06-05 03:45:53,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11273 to 5279. [2021-06-05 03:45:53,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5279 states, 5278 states have (on average 4.714664645699129) internal successors, (24884), 5278 states have internal predecessors, (24884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:53,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5279 states to 5279 states and 24884 transitions. [2021-06-05 03:45:53,760 INFO L78 Accepts]: Start accepts. Automaton has 5279 states and 24884 transitions. Word has length 29 [2021-06-05 03:45:53,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:53,760 INFO L482 AbstractCegarLoop]: Abstraction has 5279 states and 24884 transitions. [2021-06-05 03:45:53,760 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:53,760 INFO L276 IsEmpty]: Start isEmpty. Operand 5279 states and 24884 transitions. [2021-06-05 03:45:53,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:53,769 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:53,769 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:53,769 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable835 [2021-06-05 03:45:53,769 INFO L430 AbstractCegarLoop]: === Iteration 837 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:53,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:53,770 INFO L82 PathProgramCache]: Analyzing trace with hash -85361785, now seen corresponding path program 832 times [2021-06-05 03:45:53,770 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:53,770 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506381686] [2021-06-05 03:45:53,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:53,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:53,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:53,893 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:53,893 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506381686] [2021-06-05 03:45:53,893 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506381686] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:53,893 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:53,893 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:53,893 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458455067] [2021-06-05 03:45:53,893 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:53,893 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:53,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:53,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:53,893 INFO L87 Difference]: Start difference. First operand 5279 states and 24884 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:54,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:54,010 INFO L93 Difference]: Finished difference Result 11748 states and 52200 transitions. [2021-06-05 03:45:54,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:54,010 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:54,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:54,038 INFO L225 Difference]: With dead ends: 11748 [2021-06-05 03:45:54,038 INFO L226 Difference]: Without dead ends: 11163 [2021-06-05 03:45:54,038 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 146.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:54,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11163 states. [2021-06-05 03:45:54,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11163 to 5169. [2021-06-05 03:45:54,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5169 states, 5168 states have (on average 4.72890866873065) internal successors, (24439), 5168 states have internal predecessors, (24439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:54,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5169 states to 5169 states and 24439 transitions. [2021-06-05 03:45:54,270 INFO L78 Accepts]: Start accepts. Automaton has 5169 states and 24439 transitions. Word has length 29 [2021-06-05 03:45:54,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:54,270 INFO L482 AbstractCegarLoop]: Abstraction has 5169 states and 24439 transitions. [2021-06-05 03:45:54,270 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:54,270 INFO L276 IsEmpty]: Start isEmpty. Operand 5169 states and 24439 transitions. [2021-06-05 03:45:54,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:54,279 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:54,279 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:54,279 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable836 [2021-06-05 03:45:54,279 INFO L430 AbstractCegarLoop]: === Iteration 838 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:54,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:54,279 INFO L82 PathProgramCache]: Analyzing trace with hash -730205305, now seen corresponding path program 833 times [2021-06-05 03:45:54,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:54,279 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379699227] [2021-06-05 03:45:54,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:54,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:54,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:54,415 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:54,415 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379699227] [2021-06-05 03:45:54,415 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379699227] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:54,415 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:54,415 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:54,415 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032964873] [2021-06-05 03:45:54,415 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:54,415 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:54,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:54,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:54,415 INFO L87 Difference]: Start difference. First operand 5169 states and 24439 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:54,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:54,514 INFO L93 Difference]: Finished difference Result 11499 states and 51188 transitions. [2021-06-05 03:45:54,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:54,514 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:54,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:54,542 INFO L225 Difference]: With dead ends: 11499 [2021-06-05 03:45:54,542 INFO L226 Difference]: Without dead ends: 11084 [2021-06-05 03:45:54,542 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 142.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:54,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11084 states. [2021-06-05 03:45:54,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11084 to 5217. [2021-06-05 03:45:54,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5217 states, 5216 states have (on average 4.7191334355828225) internal successors, (24615), 5216 states have internal predecessors, (24615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:54,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5217 states to 5217 states and 24615 transitions. [2021-06-05 03:45:54,773 INFO L78 Accepts]: Start accepts. Automaton has 5217 states and 24615 transitions. Word has length 29 [2021-06-05 03:45:54,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:54,773 INFO L482 AbstractCegarLoop]: Abstraction has 5217 states and 24615 transitions. [2021-06-05 03:45:54,773 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:54,773 INFO L276 IsEmpty]: Start isEmpty. Operand 5217 states and 24615 transitions. [2021-06-05 03:45:54,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:54,782 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:54,782 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:54,782 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable837 [2021-06-05 03:45:54,782 INFO L430 AbstractCegarLoop]: === Iteration 839 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:54,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:54,782 INFO L82 PathProgramCache]: Analyzing trace with hash -1577002267, now seen corresponding path program 834 times [2021-06-05 03:45:54,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:54,782 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119002281] [2021-06-05 03:45:54,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:54,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:54,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:54,915 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:54,915 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119002281] [2021-06-05 03:45:54,915 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119002281] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:54,915 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:54,915 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:54,915 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031918322] [2021-06-05 03:45:54,915 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:54,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:54,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:54,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:54,915 INFO L87 Difference]: Start difference. First operand 5217 states and 24615 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:55,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:55,046 INFO L93 Difference]: Finished difference Result 11559 states and 51404 transitions. [2021-06-05 03:45:55,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:55,046 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:55,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:55,073 INFO L225 Difference]: With dead ends: 11559 [2021-06-05 03:45:55,073 INFO L226 Difference]: Without dead ends: 10996 [2021-06-05 03:45:55,074 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 156.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:55,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10996 states. [2021-06-05 03:45:55,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10996 to 5129. [2021-06-05 03:45:55,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5129 states, 5128 states have (on average 4.737714508580344) internal successors, (24295), 5128 states have internal predecessors, (24295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:55,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5129 states to 5129 states and 24295 transitions. [2021-06-05 03:45:55,301 INFO L78 Accepts]: Start accepts. Automaton has 5129 states and 24295 transitions. Word has length 29 [2021-06-05 03:45:55,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:55,301 INFO L482 AbstractCegarLoop]: Abstraction has 5129 states and 24295 transitions. [2021-06-05 03:45:55,301 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:55,301 INFO L276 IsEmpty]: Start isEmpty. Operand 5129 states and 24295 transitions. [2021-06-05 03:45:55,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:55,310 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:55,310 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:55,310 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable838 [2021-06-05 03:45:55,310 INFO L430 AbstractCegarLoop]: === Iteration 840 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:55,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:55,310 INFO L82 PathProgramCache]: Analyzing trace with hash 647599977, now seen corresponding path program 835 times [2021-06-05 03:45:55,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:55,310 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789578702] [2021-06-05 03:45:55,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:55,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:55,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:55,442 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:55,443 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789578702] [2021-06-05 03:45:55,443 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789578702] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:55,443 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:55,443 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:55,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025625287] [2021-06-05 03:45:55,443 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:55,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:55,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:55,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:55,443 INFO L87 Difference]: Start difference. First operand 5129 states and 24295 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:55,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:55,573 INFO L93 Difference]: Finished difference Result 11418 states and 50896 transitions. [2021-06-05 03:45:55,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:55,573 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:55,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:55,600 INFO L225 Difference]: With dead ends: 11418 [2021-06-05 03:45:55,600 INFO L226 Difference]: Without dead ends: 10941 [2021-06-05 03:45:55,600 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 156.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:55,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10941 states. [2021-06-05 03:45:55,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10941 to 5201. [2021-06-05 03:45:55,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5201 states, 5200 states have (on average 4.729807692307692) internal successors, (24595), 5200 states have internal predecessors, (24595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:55,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5201 states to 5201 states and 24595 transitions. [2021-06-05 03:45:55,831 INFO L78 Accepts]: Start accepts. Automaton has 5201 states and 24595 transitions. Word has length 29 [2021-06-05 03:45:55,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:55,831 INFO L482 AbstractCegarLoop]: Abstraction has 5201 states and 24595 transitions. [2021-06-05 03:45:55,831 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:55,831 INFO L276 IsEmpty]: Start isEmpty. Operand 5201 states and 24595 transitions. [2021-06-05 03:45:55,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:55,840 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:55,840 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:55,840 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable839 [2021-06-05 03:45:55,840 INFO L430 AbstractCegarLoop]: === Iteration 841 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:55,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:55,840 INFO L82 PathProgramCache]: Analyzing trace with hash -199196985, now seen corresponding path program 836 times [2021-06-05 03:45:55,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:55,840 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825840731] [2021-06-05 03:45:55,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:55,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:55,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:55,973 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:55,973 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825840731] [2021-06-05 03:45:55,973 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825840731] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:55,973 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:55,973 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:55,973 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061630102] [2021-06-05 03:45:55,973 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:55,973 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:55,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:55,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:55,973 INFO L87 Difference]: Start difference. First operand 5201 states and 24595 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:56,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:56,087 INFO L93 Difference]: Finished difference Result 11356 states and 50579 transitions. [2021-06-05 03:45:56,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:56,087 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:56,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:56,114 INFO L225 Difference]: With dead ends: 11356 [2021-06-05 03:45:56,114 INFO L226 Difference]: Without dead ends: 10893 [2021-06-05 03:45:56,114 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 139.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:56,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10893 states. [2021-06-05 03:45:56,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10893 to 5153. [2021-06-05 03:45:56,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 5152 states have (on average 4.735054347826087) internal successors, (24395), 5152 states have internal predecessors, (24395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:56,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 24395 transitions. [2021-06-05 03:45:56,341 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 24395 transitions. Word has length 29 [2021-06-05 03:45:56,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:56,341 INFO L482 AbstractCegarLoop]: Abstraction has 5153 states and 24395 transitions. [2021-06-05 03:45:56,341 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:56,341 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 24395 transitions. [2021-06-05 03:45:56,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:56,350 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:56,350 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:56,350 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable840 [2021-06-05 03:45:56,350 INFO L430 AbstractCegarLoop]: === Iteration 842 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:56,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:56,350 INFO L82 PathProgramCache]: Analyzing trace with hash -1375461561, now seen corresponding path program 837 times [2021-06-05 03:45:56,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:56,350 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840626161] [2021-06-05 03:45:56,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:56,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:56,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:56,474 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:56,474 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840626161] [2021-06-05 03:45:56,474 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840626161] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:56,474 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:56,474 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:56,474 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61058842] [2021-06-05 03:45:56,474 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:56,474 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:56,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:56,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:56,475 INFO L87 Difference]: Start difference. First operand 5153 states and 24395 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:56,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:56,587 INFO L93 Difference]: Finished difference Result 11508 states and 51283 transitions. [2021-06-05 03:45:56,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:56,588 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:56,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:56,615 INFO L225 Difference]: With dead ends: 11508 [2021-06-05 03:45:56,615 INFO L226 Difference]: Without dead ends: 11031 [2021-06-05 03:45:56,615 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 148.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:56,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11031 states. [2021-06-05 03:45:56,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11031 to 5231. [2021-06-05 03:45:56,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5231 states, 5230 states have (on average 4.720458891013385) internal successors, (24688), 5230 states have internal predecessors, (24688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:56,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5231 states to 5231 states and 24688 transitions. [2021-06-05 03:45:56,846 INFO L78 Accepts]: Start accepts. Automaton has 5231 states and 24688 transitions. Word has length 29 [2021-06-05 03:45:56,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:56,846 INFO L482 AbstractCegarLoop]: Abstraction has 5231 states and 24688 transitions. [2021-06-05 03:45:56,846 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:56,846 INFO L276 IsEmpty]: Start isEmpty. Operand 5231 states and 24688 transitions. [2021-06-05 03:45:56,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:56,855 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:56,855 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:56,855 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable841 [2021-06-05 03:45:56,855 INFO L430 AbstractCegarLoop]: === Iteration 843 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:56,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:56,855 INFO L82 PathProgramCache]: Analyzing trace with hash 2123478855, now seen corresponding path program 838 times [2021-06-05 03:45:56,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:56,855 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229002180] [2021-06-05 03:45:56,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:56,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:56,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:56,979 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:56,979 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229002180] [2021-06-05 03:45:56,979 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229002180] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:56,979 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:56,979 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:56,979 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490784710] [2021-06-05 03:45:56,979 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:56,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:56,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:56,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:56,980 INFO L87 Difference]: Start difference. First operand 5231 states and 24688 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:57,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:57,132 INFO L93 Difference]: Finished difference Result 11506 states and 51200 transitions. [2021-06-05 03:45:57,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:57,132 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:57,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:57,159 INFO L225 Difference]: With dead ends: 11506 [2021-06-05 03:45:57,160 INFO L226 Difference]: Without dead ends: 10953 [2021-06-05 03:45:57,160 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 147.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:57,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10953 states. [2021-06-05 03:45:57,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10953 to 5153. [2021-06-05 03:45:57,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 5152 states have (on average 4.730395962732919) internal successors, (24371), 5152 states have internal predecessors, (24371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:57,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 24371 transitions. [2021-06-05 03:45:57,387 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 24371 transitions. Word has length 29 [2021-06-05 03:45:57,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:57,387 INFO L482 AbstractCegarLoop]: Abstraction has 5153 states and 24371 transitions. [2021-06-05 03:45:57,387 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:57,387 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 24371 transitions. [2021-06-05 03:45:57,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:57,395 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:57,395 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:57,395 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable842 [2021-06-05 03:45:57,395 INFO L430 AbstractCegarLoop]: === Iteration 844 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:57,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:57,396 INFO L82 PathProgramCache]: Analyzing trace with hash 2062757669, now seen corresponding path program 839 times [2021-06-05 03:45:57,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:57,396 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242813579] [2021-06-05 03:45:57,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:57,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:57,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:57,527 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:57,527 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242813579] [2021-06-05 03:45:57,528 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242813579] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:57,528 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:57,528 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:57,528 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052251999] [2021-06-05 03:45:57,528 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:57,528 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:57,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:57,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:57,528 INFO L87 Difference]: Start difference. First operand 5153 states and 24371 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:57,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:57,620 INFO L93 Difference]: Finished difference Result 11354 states and 50574 transitions. [2021-06-05 03:45:57,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:57,620 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:57,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:57,646 INFO L225 Difference]: With dead ends: 11354 [2021-06-05 03:45:57,647 INFO L226 Difference]: Without dead ends: 10939 [2021-06-05 03:45:57,647 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 138.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:57,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10939 states. [2021-06-05 03:45:57,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10939 to 5201. [2021-06-05 03:45:57,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5201 states, 5200 states have (on average 4.720576923076923) internal successors, (24547), 5200 states have internal predecessors, (24547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:57,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5201 states to 5201 states and 24547 transitions. [2021-06-05 03:45:57,875 INFO L78 Accepts]: Start accepts. Automaton has 5201 states and 24547 transitions. Word has length 29 [2021-06-05 03:45:57,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:57,875 INFO L482 AbstractCegarLoop]: Abstraction has 5201 states and 24547 transitions. [2021-06-05 03:45:57,875 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:57,875 INFO L276 IsEmpty]: Start isEmpty. Operand 5201 states and 24547 transitions. [2021-06-05 03:45:57,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:57,884 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:57,884 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:57,884 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable843 [2021-06-05 03:45:57,884 INFO L430 AbstractCegarLoop]: === Iteration 845 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:57,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:57,884 INFO L82 PathProgramCache]: Analyzing trace with hash 1581855623, now seen corresponding path program 840 times [2021-06-05 03:45:57,884 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:57,884 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394694060] [2021-06-05 03:45:57,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:57,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:58,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:58,016 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:58,016 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394694060] [2021-06-05 03:45:58,017 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394694060] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:58,017 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:58,017 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:58,017 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932102372] [2021-06-05 03:45:58,017 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:58,017 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:58,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:58,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:58,017 INFO L87 Difference]: Start difference. First operand 5201 states and 24547 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:58,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:58,140 INFO L93 Difference]: Finished difference Result 11414 states and 50790 transitions. [2021-06-05 03:45:58,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:58,140 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:58,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:58,166 INFO L225 Difference]: With dead ends: 11414 [2021-06-05 03:45:58,167 INFO L226 Difference]: Without dead ends: 10815 [2021-06-05 03:45:58,167 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 155.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:58,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10815 states. [2021-06-05 03:45:58,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10815 to 5077. [2021-06-05 03:45:58,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5077 states, 5076 states have (on average 4.757880220646178) internal successors, (24151), 5076 states have internal predecessors, (24151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:58,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5077 states to 5077 states and 24151 transitions. [2021-06-05 03:45:58,394 INFO L78 Accepts]: Start accepts. Automaton has 5077 states and 24151 transitions. Word has length 29 [2021-06-05 03:45:58,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:58,394 INFO L482 AbstractCegarLoop]: Abstraction has 5077 states and 24151 transitions. [2021-06-05 03:45:58,394 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:58,394 INFO L276 IsEmpty]: Start isEmpty. Operand 5077 states and 24151 transitions. [2021-06-05 03:45:58,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:58,402 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:58,402 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:58,402 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable844 [2021-06-05 03:45:58,402 INFO L430 AbstractCegarLoop]: === Iteration 846 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:58,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:58,403 INFO L82 PathProgramCache]: Analyzing trace with hash -377300951, now seen corresponding path program 841 times [2021-06-05 03:45:58,403 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:58,403 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521755893] [2021-06-05 03:45:58,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:58,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:58,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:58,529 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:58,529 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521755893] [2021-06-05 03:45:58,529 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521755893] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:58,529 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:58,529 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:58,530 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682855423] [2021-06-05 03:45:58,530 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:58,530 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:58,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:58,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:58,530 INFO L87 Difference]: Start difference. First operand 5077 states and 24151 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:58,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:58,646 INFO L93 Difference]: Finished difference Result 11829 states and 52913 transitions. [2021-06-05 03:45:58,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:58,646 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:58,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:58,674 INFO L225 Difference]: With dead ends: 11829 [2021-06-05 03:45:58,674 INFO L226 Difference]: Without dead ends: 11414 [2021-06-05 03:45:58,674 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 151.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:58,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11414 states. [2021-06-05 03:45:58,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11414 to 5267. [2021-06-05 03:45:58,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5267 states, 5266 states have (on average 4.749715153816939) internal successors, (25012), 5266 states have internal predecessors, (25012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:58,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5267 states to 5267 states and 25012 transitions. [2021-06-05 03:45:58,907 INFO L78 Accepts]: Start accepts. Automaton has 5267 states and 25012 transitions. Word has length 29 [2021-06-05 03:45:58,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:58,907 INFO L482 AbstractCegarLoop]: Abstraction has 5267 states and 25012 transitions. [2021-06-05 03:45:58,907 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:58,907 INFO L276 IsEmpty]: Start isEmpty. Operand 5267 states and 25012 transitions. [2021-06-05 03:45:58,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:58,916 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:58,916 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:58,916 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable845 [2021-06-05 03:45:58,916 INFO L430 AbstractCegarLoop]: === Iteration 847 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:58,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:58,916 INFO L82 PathProgramCache]: Analyzing trace with hash 1377519657, now seen corresponding path program 842 times [2021-06-05 03:45:58,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:58,916 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746928466] [2021-06-05 03:45:58,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:58,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:59,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:59,044 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:59,044 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746928466] [2021-06-05 03:45:59,044 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746928466] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:59,044 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:59,044 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:59,044 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586707411] [2021-06-05 03:45:59,044 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:59,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:59,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:59,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:59,044 INFO L87 Difference]: Start difference. First operand 5267 states and 25012 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:59,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:59,147 INFO L93 Difference]: Finished difference Result 11956 states and 53392 transitions. [2021-06-05 03:45:59,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:59,147 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:59,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:59,175 INFO L225 Difference]: With dead ends: 11956 [2021-06-05 03:45:59,175 INFO L226 Difference]: Without dead ends: 11334 [2021-06-05 03:45:59,175 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 135.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:59,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11334 states. [2021-06-05 03:45:59,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11334 to 5187. [2021-06-05 03:45:59,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5187 states, 5186 states have (on average 4.753567296567682) internal successors, (24652), 5186 states have internal predecessors, (24652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:59,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 5187 states and 24652 transitions. [2021-06-05 03:45:59,406 INFO L78 Accepts]: Start accepts. Automaton has 5187 states and 24652 transitions. Word has length 29 [2021-06-05 03:45:59,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:59,406 INFO L482 AbstractCegarLoop]: Abstraction has 5187 states and 24652 transitions. [2021-06-05 03:45:59,407 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:59,407 INFO L276 IsEmpty]: Start isEmpty. Operand 5187 states and 24652 transitions. [2021-06-05 03:45:59,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:59,415 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:59,415 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:59,415 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable846 [2021-06-05 03:45:59,415 INFO L430 AbstractCegarLoop]: === Iteration 848 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:59,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:59,415 INFO L82 PathProgramCache]: Analyzing trace with hash -597102807, now seen corresponding path program 843 times [2021-06-05 03:45:59,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:59,416 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170127188] [2021-06-05 03:45:59,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:59,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:45:59,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:45:59,543 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:45:59,543 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170127188] [2021-06-05 03:45:59,543 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170127188] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:45:59,543 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:45:59,543 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:45:59,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901743948] [2021-06-05 03:45:59,543 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:45:59,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:45:59,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:45:59,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:45:59,544 INFO L87 Difference]: Start difference. First operand 5187 states and 24652 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:59,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:45:59,658 INFO L93 Difference]: Finished difference Result 11732 states and 52471 transitions. [2021-06-05 03:45:59,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:45:59,659 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:45:59,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:45:59,687 INFO L225 Difference]: With dead ends: 11732 [2021-06-05 03:45:59,687 INFO L226 Difference]: Without dead ends: 11317 [2021-06-05 03:45:59,687 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 152.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:45:59,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11317 states. [2021-06-05 03:45:59,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11317 to 5235. [2021-06-05 03:45:59,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5235 states, 5234 states have (on average 4.7435995414596865) internal successors, (24828), 5234 states have internal predecessors, (24828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:59,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5235 states to 5235 states and 24828 transitions. [2021-06-05 03:45:59,921 INFO L78 Accepts]: Start accepts. Automaton has 5235 states and 24828 transitions. Word has length 29 [2021-06-05 03:45:59,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:45:59,922 INFO L482 AbstractCegarLoop]: Abstraction has 5235 states and 24828 transitions. [2021-06-05 03:45:59,922 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:45:59,922 INFO L276 IsEmpty]: Start isEmpty. Operand 5235 states and 24828 transitions. [2021-06-05 03:45:59,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:45:59,930 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:45:59,930 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:45:59,930 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable847 [2021-06-05 03:45:59,931 INFO L430 AbstractCegarLoop]: === Iteration 849 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:45:59,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:45:59,931 INFO L82 PathProgramCache]: Analyzing trace with hash 119560139, now seen corresponding path program 844 times [2021-06-05 03:45:59,931 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:45:59,931 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796639675] [2021-06-05 03:45:59,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:45:59,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:00,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:00,060 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:00,060 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796639675] [2021-06-05 03:46:00,060 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796639675] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:00,060 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:00,060 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:00,060 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432261121] [2021-06-05 03:46:00,060 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:00,060 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:00,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:00,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:00,060 INFO L87 Difference]: Start difference. First operand 5235 states and 24828 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:00,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:00,176 INFO L93 Difference]: Finished difference Result 11794 states and 52692 transitions. [2021-06-05 03:46:00,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:00,176 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:00,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:00,204 INFO L225 Difference]: With dead ends: 11794 [2021-06-05 03:46:00,204 INFO L226 Difference]: Without dead ends: 11269 [2021-06-05 03:46:00,204 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 153.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:00,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11269 states. [2021-06-05 03:46:00,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11269 to 5187. [2021-06-05 03:46:00,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5187 states, 5186 states have (on average 4.74893945237177) internal successors, (24628), 5186 states have internal predecessors, (24628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:00,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 5187 states and 24628 transitions. [2021-06-05 03:46:00,439 INFO L78 Accepts]: Start accepts. Automaton has 5187 states and 24628 transitions. Word has length 29 [2021-06-05 03:46:00,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:00,439 INFO L482 AbstractCegarLoop]: Abstraction has 5187 states and 24628 transitions. [2021-06-05 03:46:00,439 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:00,439 INFO L276 IsEmpty]: Start isEmpty. Operand 5187 states and 24628 transitions. [2021-06-05 03:46:00,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:00,447 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:00,448 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:00,448 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable848 [2021-06-05 03:46:00,448 INFO L430 AbstractCegarLoop]: === Iteration 850 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:00,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:00,448 INFO L82 PathProgramCache]: Analyzing trace with hash -2092181557, now seen corresponding path program 845 times [2021-06-05 03:46:00,448 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:00,448 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884911010] [2021-06-05 03:46:00,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:00,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:00,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:00,568 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:00,568 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884911010] [2021-06-05 03:46:00,568 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884911010] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:00,568 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:00,568 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:00,568 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789025110] [2021-06-05 03:46:00,568 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:00,568 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:00,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:00,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:00,568 INFO L87 Difference]: Start difference. First operand 5187 states and 24628 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:00,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:00,674 INFO L93 Difference]: Finished difference Result 12081 states and 53907 transitions. [2021-06-05 03:46:00,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:00,674 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:00,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:00,702 INFO L225 Difference]: With dead ends: 12081 [2021-06-05 03:46:00,703 INFO L226 Difference]: Without dead ends: 11539 [2021-06-05 03:46:00,703 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 127.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:00,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11539 states. [2021-06-05 03:46:00,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11539 to 5330. [2021-06-05 03:46:00,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5330 states, 5329 states have (on average 4.718896603490336) internal successors, (25147), 5329 states have internal predecessors, (25147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:00,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5330 states to 5330 states and 25147 transitions. [2021-06-05 03:46:00,940 INFO L78 Accepts]: Start accepts. Automaton has 5330 states and 25147 transitions. Word has length 29 [2021-06-05 03:46:00,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:00,941 INFO L482 AbstractCegarLoop]: Abstraction has 5330 states and 25147 transitions. [2021-06-05 03:46:00,941 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:00,941 INFO L276 IsEmpty]: Start isEmpty. Operand 5330 states and 25147 transitions. [2021-06-05 03:46:00,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:00,950 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:00,950 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:00,950 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable849 [2021-06-05 03:46:00,950 INFO L430 AbstractCegarLoop]: === Iteration 851 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:00,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:00,950 INFO L82 PathProgramCache]: Analyzing trace with hash 159448745, now seen corresponding path program 846 times [2021-06-05 03:46:00,950 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:00,950 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775662680] [2021-06-05 03:46:00,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:00,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:01,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:01,070 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:01,070 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775662680] [2021-06-05 03:46:01,070 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775662680] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:01,070 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:01,070 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:01,070 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448337502] [2021-06-05 03:46:01,070 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:01,070 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:01,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:01,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:01,070 INFO L87 Difference]: Start difference. First operand 5330 states and 25147 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:01,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:01,199 INFO L93 Difference]: Finished difference Result 12016 states and 53538 transitions. [2021-06-05 03:46:01,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:01,199 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:01,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:01,227 INFO L225 Difference]: With dead ends: 12016 [2021-06-05 03:46:01,227 INFO L226 Difference]: Without dead ends: 11340 [2021-06-05 03:46:01,227 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 143.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:01,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11340 states. [2021-06-05 03:46:01,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11340 to 5131. [2021-06-05 03:46:01,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.7555555555555555) internal successors, (24396), 5130 states have internal predecessors, (24396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:01,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24396 transitions. [2021-06-05 03:46:01,459 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24396 transitions. Word has length 29 [2021-06-05 03:46:01,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:01,459 INFO L482 AbstractCegarLoop]: Abstraction has 5131 states and 24396 transitions. [2021-06-05 03:46:01,459 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:01,459 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24396 transitions. [2021-06-05 03:46:01,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:01,468 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:01,468 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:01,468 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable850 [2021-06-05 03:46:01,468 INFO L430 AbstractCegarLoop]: === Iteration 852 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:01,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:01,468 INFO L82 PathProgramCache]: Analyzing trace with hash 1827572905, now seen corresponding path program 847 times [2021-06-05 03:46:01,468 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:01,468 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156482056] [2021-06-05 03:46:01,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:01,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:01,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:01,599 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:01,599 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156482056] [2021-06-05 03:46:01,599 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156482056] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:01,599 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:01,599 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:01,599 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822407345] [2021-06-05 03:46:01,599 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:01,599 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:01,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:01,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:01,599 INFO L87 Difference]: Start difference. First operand 5131 states and 24396 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:01,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:01,731 INFO L93 Difference]: Finished difference Result 11778 states and 52701 transitions. [2021-06-05 03:46:01,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:01,731 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:01,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:01,758 INFO L225 Difference]: With dead ends: 11778 [2021-06-05 03:46:01,759 INFO L226 Difference]: Without dead ends: 11363 [2021-06-05 03:46:01,759 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 155.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:01,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11363 states. [2021-06-05 03:46:01,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11363 to 5251. [2021-06-05 03:46:01,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5251 states, 5250 states have (on average 4.746666666666667) internal successors, (24920), 5250 states have internal predecessors, (24920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:01,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5251 states to 5251 states and 24920 transitions. [2021-06-05 03:46:01,989 INFO L78 Accepts]: Start accepts. Automaton has 5251 states and 24920 transitions. Word has length 29 [2021-06-05 03:46:01,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:01,989 INFO L482 AbstractCegarLoop]: Abstraction has 5251 states and 24920 transitions. [2021-06-05 03:46:01,989 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:01,989 INFO L276 IsEmpty]: Start isEmpty. Operand 5251 states and 24920 transitions. [2021-06-05 03:46:01,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:01,998 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:01,998 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:01,998 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable851 [2021-06-05 03:46:01,998 INFO L430 AbstractCegarLoop]: === Iteration 853 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:01,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:01,998 INFO L82 PathProgramCache]: Analyzing trace with hash -712573783, now seen corresponding path program 848 times [2021-06-05 03:46:01,998 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:01,998 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379908593] [2021-06-05 03:46:01,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:01,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:02,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:02,128 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:02,128 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379908593] [2021-06-05 03:46:02,128 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379908593] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:02,129 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:02,129 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:02,129 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814016317] [2021-06-05 03:46:02,129 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:02,129 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:02,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:02,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:02,129 INFO L87 Difference]: Start difference. First operand 5251 states and 24920 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:02,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:02,237 INFO L93 Difference]: Finished difference Result 11905 states and 53180 transitions. [2021-06-05 03:46:02,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:02,237 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:02,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:02,266 INFO L225 Difference]: With dead ends: 11905 [2021-06-05 03:46:02,266 INFO L226 Difference]: Without dead ends: 11283 [2021-06-05 03:46:02,267 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 138.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:02,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11283 states. [2021-06-05 03:46:02,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11283 to 5171. [2021-06-05 03:46:02,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5171 states, 5170 states have (on average 4.750483558994198) internal successors, (24560), 5170 states have internal predecessors, (24560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:02,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5171 states to 5171 states and 24560 transitions. [2021-06-05 03:46:02,502 INFO L78 Accepts]: Start accepts. Automaton has 5171 states and 24560 transitions. Word has length 29 [2021-06-05 03:46:02,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:02,502 INFO L482 AbstractCegarLoop]: Abstraction has 5171 states and 24560 transitions. [2021-06-05 03:46:02,502 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:02,503 INFO L276 IsEmpty]: Start isEmpty. Operand 5171 states and 24560 transitions. [2021-06-05 03:46:02,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:02,511 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:02,511 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:02,511 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable852 [2021-06-05 03:46:02,512 INFO L430 AbstractCegarLoop]: === Iteration 854 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:02,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:02,512 INFO L82 PathProgramCache]: Analyzing trace with hash -59930553, now seen corresponding path program 849 times [2021-06-05 03:46:02,512 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:02,512 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488095580] [2021-06-05 03:46:02,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:02,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:02,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:02,650 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:02,650 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488095580] [2021-06-05 03:46:02,650 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488095580] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:02,650 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:02,650 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:02,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747566546] [2021-06-05 03:46:02,651 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:02,651 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:02,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:02,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:02,651 INFO L87 Difference]: Start difference. First operand 5171 states and 24560 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:02,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:02,765 INFO L93 Difference]: Finished difference Result 11679 states and 52254 transitions. [2021-06-05 03:46:02,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:02,766 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:02,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:02,793 INFO L225 Difference]: With dead ends: 11679 [2021-06-05 03:46:02,793 INFO L226 Difference]: Without dead ends: 11264 [2021-06-05 03:46:02,793 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 159.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:02,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11264 states. [2021-06-05 03:46:03,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11264 to 5219. [2021-06-05 03:46:03,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5219 states, 5218 states have (on average 4.740513606745879) internal successors, (24736), 5218 states have internal predecessors, (24736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:03,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5219 states to 5219 states and 24736 transitions. [2021-06-05 03:46:03,026 INFO L78 Accepts]: Start accepts. Automaton has 5219 states and 24736 transitions. Word has length 29 [2021-06-05 03:46:03,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:03,026 INFO L482 AbstractCegarLoop]: Abstraction has 5219 states and 24736 transitions. [2021-06-05 03:46:03,027 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:03,027 INFO L276 IsEmpty]: Start isEmpty. Operand 5219 states and 24736 transitions. [2021-06-05 03:46:03,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:03,035 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:03,035 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:03,036 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable853 [2021-06-05 03:46:03,036 INFO L430 AbstractCegarLoop]: === Iteration 855 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:03,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:03,036 INFO L82 PathProgramCache]: Analyzing trace with hash -574611479, now seen corresponding path program 850 times [2021-06-05 03:46:03,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:03,036 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061291903] [2021-06-05 03:46:03,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:03,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:03,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:03,173 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:03,173 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061291903] [2021-06-05 03:46:03,173 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061291903] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:03,173 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:03,173 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:03,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449139283] [2021-06-05 03:46:03,174 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:03,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:03,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:03,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:03,174 INFO L87 Difference]: Start difference. First operand 5219 states and 24736 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:03,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:03,289 INFO L93 Difference]: Finished difference Result 11739 states and 52470 transitions. [2021-06-05 03:46:03,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:03,289 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:03,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:03,317 INFO L225 Difference]: With dead ends: 11739 [2021-06-05 03:46:03,317 INFO L226 Difference]: Without dead ends: 11216 [2021-06-05 03:46:03,317 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 159.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:03,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11216 states. [2021-06-05 03:46:03,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11216 to 5171. [2021-06-05 03:46:03,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5171 states, 5170 states have (on average 4.745841392649903) internal successors, (24536), 5170 states have internal predecessors, (24536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:03,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5171 states to 5171 states and 24536 transitions. [2021-06-05 03:46:03,548 INFO L78 Accepts]: Start accepts. Automaton has 5171 states and 24536 transitions. Word has length 29 [2021-06-05 03:46:03,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:03,548 INFO L482 AbstractCegarLoop]: Abstraction has 5171 states and 24536 transitions. [2021-06-05 03:46:03,548 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:03,548 INFO L276 IsEmpty]: Start isEmpty. Operand 5171 states and 24536 transitions. [2021-06-05 03:46:03,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:03,556 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:03,556 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:03,556 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable854 [2021-06-05 03:46:03,556 INFO L430 AbstractCegarLoop]: === Iteration 856 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:03,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:03,557 INFO L82 PathProgramCache]: Analyzing trace with hash 164216809, now seen corresponding path program 851 times [2021-06-05 03:46:03,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:03,557 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682474593] [2021-06-05 03:46:03,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:03,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:03,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:03,680 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:03,680 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682474593] [2021-06-05 03:46:03,680 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682474593] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:03,680 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:03,680 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:03,680 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189182925] [2021-06-05 03:46:03,680 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:03,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:03,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:03,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:03,680 INFO L87 Difference]: Start difference. First operand 5171 states and 24536 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:03,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:03,777 INFO L93 Difference]: Finished difference Result 11995 states and 53575 transitions. [2021-06-05 03:46:03,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:03,778 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:03,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:03,805 INFO L225 Difference]: With dead ends: 11995 [2021-06-05 03:46:03,806 INFO L226 Difference]: Without dead ends: 11453 [2021-06-05 03:46:03,806 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 130.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:03,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11453 states. [2021-06-05 03:46:04,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11453 to 5281. [2021-06-05 03:46:04,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5281 states, 5280 states have (on average 4.723674242424242) internal successors, (24941), 5280 states have internal predecessors, (24941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:04,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5281 states to 5281 states and 24941 transitions. [2021-06-05 03:46:04,046 INFO L78 Accepts]: Start accepts. Automaton has 5281 states and 24941 transitions. Word has length 29 [2021-06-05 03:46:04,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:04,046 INFO L482 AbstractCegarLoop]: Abstraction has 5281 states and 24941 transitions. [2021-06-05 03:46:04,046 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:04,046 INFO L276 IsEmpty]: Start isEmpty. Operand 5281 states and 24941 transitions. [2021-06-05 03:46:04,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:04,055 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:04,055 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:04,055 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable855 [2021-06-05 03:46:04,055 INFO L430 AbstractCegarLoop]: === Iteration 857 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:04,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:04,056 INFO L82 PathProgramCache]: Analyzing trace with hash -576735289, now seen corresponding path program 852 times [2021-06-05 03:46:04,056 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:04,056 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70832686] [2021-06-05 03:46:04,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:04,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:04,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:04,178 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:04,178 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70832686] [2021-06-05 03:46:04,178 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70832686] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:04,178 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:04,178 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:04,178 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61426727] [2021-06-05 03:46:04,178 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:04,178 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:04,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:04,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:04,178 INFO L87 Difference]: Start difference. First operand 5281 states and 24941 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:04,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:04,293 INFO L93 Difference]: Finished difference Result 11928 states and 53202 transitions. [2021-06-05 03:46:04,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:04,293 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:04,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:04,321 INFO L225 Difference]: With dead ends: 11928 [2021-06-05 03:46:04,321 INFO L226 Difference]: Without dead ends: 11303 [2021-06-05 03:46:04,321 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 146.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:04,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11303 states. [2021-06-05 03:46:04,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11303 to 5131. [2021-06-05 03:46:04,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.751656920077973) internal successors, (24376), 5130 states have internal predecessors, (24376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:04,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24376 transitions. [2021-06-05 03:46:04,559 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24376 transitions. Word has length 29 [2021-06-05 03:46:04,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:04,559 INFO L482 AbstractCegarLoop]: Abstraction has 5131 states and 24376 transitions. [2021-06-05 03:46:04,560 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:04,560 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24376 transitions. [2021-06-05 03:46:04,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:04,568 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:04,568 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:04,568 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable856 [2021-06-05 03:46:04,568 INFO L430 AbstractCegarLoop]: === Iteration 858 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:04,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:04,568 INFO L82 PathProgramCache]: Analyzing trace with hash -1206403257, now seen corresponding path program 853 times [2021-06-05 03:46:04,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:04,569 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607323285] [2021-06-05 03:46:04,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:04,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:04,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:04,700 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:04,701 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607323285] [2021-06-05 03:46:04,701 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607323285] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:04,701 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:04,701 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:04,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49113744] [2021-06-05 03:46:04,701 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:04,701 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:04,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:04,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:04,701 INFO L87 Difference]: Start difference. First operand 5131 states and 24376 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:04,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:04,819 INFO L93 Difference]: Finished difference Result 11536 states and 51653 transitions. [2021-06-05 03:46:04,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:04,819 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:04,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:04,846 INFO L225 Difference]: With dead ends: 11536 [2021-06-05 03:46:04,846 INFO L226 Difference]: Without dead ends: 11121 [2021-06-05 03:46:04,847 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 156.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:04,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11121 states. [2021-06-05 03:46:05,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11121 to 5203. [2021-06-05 03:46:05,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5203 states, 5202 states have (on average 4.743560169165706) internal successors, (24676), 5202 states have internal predecessors, (24676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:05,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5203 states to 5203 states and 24676 transitions. [2021-06-05 03:46:05,076 INFO L78 Accepts]: Start accepts. Automaton has 5203 states and 24676 transitions. Word has length 29 [2021-06-05 03:46:05,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:05,077 INFO L482 AbstractCegarLoop]: Abstraction has 5203 states and 24676 transitions. [2021-06-05 03:46:05,077 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:05,077 INFO L276 IsEmpty]: Start isEmpty. Operand 5203 states and 24676 transitions. [2021-06-05 03:46:05,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:05,085 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:05,085 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:05,085 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable857 [2021-06-05 03:46:05,085 INFO L430 AbstractCegarLoop]: === Iteration 859 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:05,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:05,086 INFO L82 PathProgramCache]: Analyzing trace with hash -489740311, now seen corresponding path program 854 times [2021-06-05 03:46:05,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:05,086 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685878319] [2021-06-05 03:46:05,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:05,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:05,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:05,216 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:05,216 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685878319] [2021-06-05 03:46:05,216 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685878319] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:05,216 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:05,216 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:05,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510731710] [2021-06-05 03:46:05,216 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:05,216 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:05,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:05,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:05,217 INFO L87 Difference]: Start difference. First operand 5203 states and 24676 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:05,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:05,341 INFO L93 Difference]: Finished difference Result 11598 states and 51874 transitions. [2021-06-05 03:46:05,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:05,342 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:05,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:05,369 INFO L225 Difference]: With dead ends: 11598 [2021-06-05 03:46:05,369 INFO L226 Difference]: Without dead ends: 11073 [2021-06-05 03:46:05,369 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 156.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:05,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11073 states. [2021-06-05 03:46:05,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11073 to 5155. [2021-06-05 03:46:05,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5155 states, 5154 states have (on average 4.748932867675592) internal successors, (24476), 5154 states have internal predecessors, (24476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:05,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 24476 transitions. [2021-06-05 03:46:05,614 INFO L78 Accepts]: Start accepts. Automaton has 5155 states and 24476 transitions. Word has length 29 [2021-06-05 03:46:05,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:05,614 INFO L482 AbstractCegarLoop]: Abstraction has 5155 states and 24476 transitions. [2021-06-05 03:46:05,614 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:05,614 INFO L276 IsEmpty]: Start isEmpty. Operand 5155 states and 24476 transitions. [2021-06-05 03:46:05,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:05,623 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:05,623 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:05,623 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable858 [2021-06-05 03:46:05,623 INFO L430 AbstractCegarLoop]: === Iteration 860 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:05,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:05,623 INFO L82 PathProgramCache]: Analyzing trace with hash 1914604329, now seen corresponding path program 855 times [2021-06-05 03:46:05,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:05,624 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944565007] [2021-06-05 03:46:05,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:05,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:05,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:05,759 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:05,759 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944565007] [2021-06-05 03:46:05,759 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944565007] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:05,759 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:05,759 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:05,759 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932936923] [2021-06-05 03:46:05,760 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:05,760 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:05,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:05,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:05,760 INFO L87 Difference]: Start difference. First operand 5155 states and 24476 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:05,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:05,878 INFO L93 Difference]: Finished difference Result 11534 states and 51624 transitions. [2021-06-05 03:46:05,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:05,878 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:05,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:05,906 INFO L225 Difference]: With dead ends: 11534 [2021-06-05 03:46:05,906 INFO L226 Difference]: Without dead ends: 11119 [2021-06-05 03:46:05,906 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 160.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:06,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11119 states. [2021-06-05 03:46:06,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11119 to 5203. [2021-06-05 03:46:06,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5203 states, 5202 states have (on average 4.738946559015763) internal successors, (24652), 5202 states have internal predecessors, (24652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:06,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5203 states to 5203 states and 24652 transitions. [2021-06-05 03:46:06,138 INFO L78 Accepts]: Start accepts. Automaton has 5203 states and 24652 transitions. Word has length 29 [2021-06-05 03:46:06,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:06,138 INFO L482 AbstractCegarLoop]: Abstraction has 5203 states and 24652 transitions. [2021-06-05 03:46:06,138 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:06,138 INFO L276 IsEmpty]: Start isEmpty. Operand 5203 states and 24652 transitions. [2021-06-05 03:46:06,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:06,147 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:06,147 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:06,147 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable859 [2021-06-05 03:46:06,147 INFO L430 AbstractCegarLoop]: === Iteration 861 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:06,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:06,147 INFO L82 PathProgramCache]: Analyzing trace with hash -1350797591, now seen corresponding path program 856 times [2021-06-05 03:46:06,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:06,147 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437208144] [2021-06-05 03:46:06,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:06,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:06,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:06,283 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:06,283 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437208144] [2021-06-05 03:46:06,283 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437208144] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:06,283 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:06,283 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:06,283 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995374215] [2021-06-05 03:46:06,283 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:06,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:06,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:06,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:06,284 INFO L87 Difference]: Start difference. First operand 5203 states and 24652 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:06,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:06,408 INFO L93 Difference]: Finished difference Result 11594 states and 51840 transitions. [2021-06-05 03:46:06,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:06,409 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:06,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:06,436 INFO L225 Difference]: With dead ends: 11594 [2021-06-05 03:46:06,436 INFO L226 Difference]: Without dead ends: 11071 [2021-06-05 03:46:06,436 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 160.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:06,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11071 states. [2021-06-05 03:46:06,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11071 to 5155. [2021-06-05 03:46:06,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5155 states, 5154 states have (on average 4.744276290259992) internal successors, (24452), 5154 states have internal predecessors, (24452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:06,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 24452 transitions. [2021-06-05 03:46:06,700 INFO L78 Accepts]: Start accepts. Automaton has 5155 states and 24452 transitions. Word has length 29 [2021-06-05 03:46:06,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:06,700 INFO L482 AbstractCegarLoop]: Abstraction has 5155 states and 24452 transitions. [2021-06-05 03:46:06,700 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:06,700 INFO L276 IsEmpty]: Start isEmpty. Operand 5155 states and 24452 transitions. [2021-06-05 03:46:06,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:06,709 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:06,709 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:06,709 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable860 [2021-06-05 03:46:06,709 INFO L430 AbstractCegarLoop]: === Iteration 862 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:06,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:06,709 INFO L82 PathProgramCache]: Analyzing trace with hash -1176871157, now seen corresponding path program 857 times [2021-06-05 03:46:06,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:06,709 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7363050] [2021-06-05 03:46:06,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:06,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:06,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:06,830 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:06,830 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7363050] [2021-06-05 03:46:06,830 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7363050] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:06,830 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:06,830 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:06,830 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208285422] [2021-06-05 03:46:06,830 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:06,830 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:06,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:06,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:06,830 INFO L87 Difference]: Start difference. First operand 5155 states and 24452 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:06,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:06,961 INFO L93 Difference]: Finished difference Result 11688 states and 52285 transitions. [2021-06-05 03:46:06,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:06,961 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:06,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:06,988 INFO L225 Difference]: With dead ends: 11688 [2021-06-05 03:46:06,988 INFO L226 Difference]: Without dead ends: 11211 [2021-06-05 03:46:06,989 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 144.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:07,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11211 states. [2021-06-05 03:46:07,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11211 to 5233. [2021-06-05 03:46:07,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5233 states, 5232 states have (on average 4.729548929663609) internal successors, (24745), 5232 states have internal predecessors, (24745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:07,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5233 states to 5233 states and 24745 transitions. [2021-06-05 03:46:07,220 INFO L78 Accepts]: Start accepts. Automaton has 5233 states and 24745 transitions. Word has length 29 [2021-06-05 03:46:07,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:07,220 INFO L482 AbstractCegarLoop]: Abstraction has 5233 states and 24745 transitions. [2021-06-05 03:46:07,220 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:07,220 INFO L276 IsEmpty]: Start isEmpty. Operand 5233 states and 24745 transitions. [2021-06-05 03:46:07,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:07,229 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:07,229 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:07,229 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable861 [2021-06-05 03:46:07,229 INFO L430 AbstractCegarLoop]: === Iteration 863 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:07,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:07,229 INFO L82 PathProgramCache]: Analyzing trace with hash 1725951593, now seen corresponding path program 858 times [2021-06-05 03:46:07,229 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:07,229 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189317288] [2021-06-05 03:46:07,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:07,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:07,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:07,351 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:07,351 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189317288] [2021-06-05 03:46:07,351 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189317288] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:07,351 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:07,351 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:07,351 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760505021] [2021-06-05 03:46:07,351 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:07,351 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:07,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:07,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:07,351 INFO L87 Difference]: Start difference. First operand 5233 states and 24745 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:07,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:07,485 INFO L93 Difference]: Finished difference Result 11686 states and 52202 transitions. [2021-06-05 03:46:07,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:07,486 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:07,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:07,513 INFO L225 Difference]: With dead ends: 11686 [2021-06-05 03:46:07,513 INFO L226 Difference]: Without dead ends: 11109 [2021-06-05 03:46:07,513 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 145.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:07,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11109 states. [2021-06-05 03:46:07,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11109 to 5131. [2021-06-05 03:46:07,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.749317738791423) internal successors, (24364), 5130 states have internal predecessors, (24364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:07,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24364 transitions. [2021-06-05 03:46:07,744 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24364 transitions. Word has length 29 [2021-06-05 03:46:07,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:07,744 INFO L482 AbstractCegarLoop]: Abstraction has 5131 states and 24364 transitions. [2021-06-05 03:46:07,744 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:07,744 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24364 transitions. [2021-06-05 03:46:07,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:07,753 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:07,753 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:07,753 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable862 [2021-06-05 03:46:07,753 INFO L430 AbstractCegarLoop]: === Iteration 864 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:07,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:07,753 INFO L82 PathProgramCache]: Analyzing trace with hash -504688885, now seen corresponding path program 859 times [2021-06-05 03:46:07,753 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:07,753 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066042929] [2021-06-05 03:46:07,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:07,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:07,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:07,866 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:07,866 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066042929] [2021-06-05 03:46:07,866 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066042929] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:07,866 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:07,866 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:07,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671811461] [2021-06-05 03:46:07,866 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:07,866 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:07,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:07,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:07,866 INFO L87 Difference]: Start difference. First operand 5131 states and 24364 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:07,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:07,967 INFO L93 Difference]: Finished difference Result 12232 states and 54598 transitions. [2021-06-05 03:46:07,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:07,968 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:07,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:07,996 INFO L225 Difference]: With dead ends: 12232 [2021-06-05 03:46:07,997 INFO L226 Difference]: Without dead ends: 11690 [2021-06-05 03:46:07,997 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 119.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:08,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11690 states. [2021-06-05 03:46:08,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11690 to 5361. [2021-06-05 03:46:08,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5361 states, 5360 states have (on average 4.7164179104477615) internal successors, (25280), 5360 states have internal predecessors, (25280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:08,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5361 states to 5361 states and 25280 transitions. [2021-06-05 03:46:08,236 INFO L78 Accepts]: Start accepts. Automaton has 5361 states and 25280 transitions. Word has length 29 [2021-06-05 03:46:08,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:08,236 INFO L482 AbstractCegarLoop]: Abstraction has 5361 states and 25280 transitions. [2021-06-05 03:46:08,236 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:08,236 INFO L276 IsEmpty]: Start isEmpty. Operand 5361 states and 25280 transitions. [2021-06-05 03:46:08,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:08,245 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:08,245 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:08,245 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable863 [2021-06-05 03:46:08,245 INFO L430 AbstractCegarLoop]: === Iteration 865 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:08,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:08,245 INFO L82 PathProgramCache]: Analyzing trace with hash 1746941417, now seen corresponding path program 860 times [2021-06-05 03:46:08,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:08,245 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887038912] [2021-06-05 03:46:08,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:08,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:08,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:08,357 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:08,357 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887038912] [2021-06-05 03:46:08,357 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887038912] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:08,357 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:08,357 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:08,357 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794120148] [2021-06-05 03:46:08,357 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:08,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:08,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:08,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:08,358 INFO L87 Difference]: Start difference. First operand 5361 states and 25280 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:08,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:08,467 INFO L93 Difference]: Finished difference Result 12167 states and 54229 transitions. [2021-06-05 03:46:08,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:08,467 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:08,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:08,495 INFO L225 Difference]: With dead ends: 12167 [2021-06-05 03:46:08,496 INFO L226 Difference]: Without dead ends: 11547 [2021-06-05 03:46:08,496 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 136.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:08,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11547 states. [2021-06-05 03:46:08,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11547 to 5218. [2021-06-05 03:46:08,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5218 states, 5217 states have (on average 4.732604945370903) internal successors, (24690), 5217 states have internal predecessors, (24690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:08,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5218 states to 5218 states and 24690 transitions. [2021-06-05 03:46:08,730 INFO L78 Accepts]: Start accepts. Automaton has 5218 states and 24690 transitions. Word has length 29 [2021-06-05 03:46:08,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:08,731 INFO L482 AbstractCegarLoop]: Abstraction has 5218 states and 24690 transitions. [2021-06-05 03:46:08,731 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:08,731 INFO L276 IsEmpty]: Start isEmpty. Operand 5218 states and 24690 transitions. [2021-06-05 03:46:08,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:08,739 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:08,739 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:08,739 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable864 [2021-06-05 03:46:08,740 INFO L430 AbstractCegarLoop]: === Iteration 866 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:08,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:08,740 INFO L82 PathProgramCache]: Analyzing trace with hash 1674198761, now seen corresponding path program 861 times [2021-06-05 03:46:08,740 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:08,740 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368607730] [2021-06-05 03:46:08,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:08,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:08,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:08,855 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:08,855 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368607730] [2021-06-05 03:46:08,855 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368607730] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:08,855 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:08,855 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:08,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852161517] [2021-06-05 03:46:08,855 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:08,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:08,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:08,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:08,856 INFO L87 Difference]: Start difference. First operand 5218 states and 24690 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:08,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:08,950 INFO L93 Difference]: Finished difference Result 12197 states and 54407 transitions. [2021-06-05 03:46:08,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:08,950 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:08,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:08,981 INFO L225 Difference]: With dead ends: 12197 [2021-06-05 03:46:08,981 INFO L226 Difference]: Without dead ends: 11655 [2021-06-05 03:46:08,981 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 119.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:09,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11655 states. [2021-06-05 03:46:09,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11655 to 5328. [2021-06-05 03:46:09,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5328 states, 5327 states have (on average 4.710906701708279) internal successors, (25095), 5327 states have internal predecessors, (25095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:09,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5328 states to 5328 states and 25095 transitions. [2021-06-05 03:46:09,225 INFO L78 Accepts]: Start accepts. Automaton has 5328 states and 25095 transitions. Word has length 29 [2021-06-05 03:46:09,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:09,226 INFO L482 AbstractCegarLoop]: Abstraction has 5328 states and 25095 transitions. [2021-06-05 03:46:09,226 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:09,226 INFO L276 IsEmpty]: Start isEmpty. Operand 5328 states and 25095 transitions. [2021-06-05 03:46:09,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:09,234 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:09,234 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:09,235 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable865 [2021-06-05 03:46:09,235 INFO L430 AbstractCegarLoop]: === Iteration 867 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:09,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:09,235 INFO L82 PathProgramCache]: Analyzing trace with hash -2064980247, now seen corresponding path program 862 times [2021-06-05 03:46:09,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:09,235 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292730530] [2021-06-05 03:46:09,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:09,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:09,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:09,346 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:09,346 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292730530] [2021-06-05 03:46:09,346 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292730530] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:09,346 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:09,346 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:09,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829905686] [2021-06-05 03:46:09,346 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:09,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:09,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:09,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:09,347 INFO L87 Difference]: Start difference. First operand 5328 states and 25095 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:09,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:09,465 INFO L93 Difference]: Finished difference Result 12130 states and 54034 transitions. [2021-06-05 03:46:09,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:09,465 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:09,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:09,494 INFO L225 Difference]: With dead ends: 12130 [2021-06-05 03:46:09,494 INFO L226 Difference]: Without dead ends: 11545 [2021-06-05 03:46:09,494 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 137.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:09,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11545 states. [2021-06-05 03:46:09,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11545 to 5218. [2021-06-05 03:46:09,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5218 states, 5217 states have (on average 4.722062488019935) internal successors, (24635), 5217 states have internal predecessors, (24635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:09,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5218 states to 5218 states and 24635 transitions. [2021-06-05 03:46:09,727 INFO L78 Accepts]: Start accepts. Automaton has 5218 states and 24635 transitions. Word has length 29 [2021-06-05 03:46:09,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:09,727 INFO L482 AbstractCegarLoop]: Abstraction has 5218 states and 24635 transitions. [2021-06-05 03:46:09,727 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:09,727 INFO L276 IsEmpty]: Start isEmpty. Operand 5218 states and 24635 transitions. [2021-06-05 03:46:09,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:09,736 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:09,736 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:09,736 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable866 [2021-06-05 03:46:09,736 INFO L430 AbstractCegarLoop]: === Iteration 868 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:09,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:09,736 INFO L82 PathProgramCache]: Analyzing trace with hash -1638420921, now seen corresponding path program 863 times [2021-06-05 03:46:09,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:09,736 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690587626] [2021-06-05 03:46:09,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:09,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:09,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:09,848 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:09,849 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690587626] [2021-06-05 03:46:09,849 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690587626] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:09,849 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:09,849 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:09,849 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012814254] [2021-06-05 03:46:09,849 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:09,849 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:09,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:09,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:09,849 INFO L87 Difference]: Start difference. First operand 5218 states and 24635 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:09,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:09,963 INFO L93 Difference]: Finished difference Result 12035 states and 53692 transitions. [2021-06-05 03:46:09,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:09,963 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:09,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:09,991 INFO L225 Difference]: With dead ends: 12035 [2021-06-05 03:46:09,991 INFO L226 Difference]: Without dead ends: 11558 [2021-06-05 03:46:09,991 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 136.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:10,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11558 states. [2021-06-05 03:46:10,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11558 to 5296. [2021-06-05 03:46:10,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5296 states, 5295 states have (on average 4.707837582625118) internal successors, (24928), 5295 states have internal predecessors, (24928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:10,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5296 states to 5296 states and 24928 transitions. [2021-06-05 03:46:10,226 INFO L78 Accepts]: Start accepts. Automaton has 5296 states and 24928 transitions. Word has length 29 [2021-06-05 03:46:10,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:10,226 INFO L482 AbstractCegarLoop]: Abstraction has 5296 states and 24928 transitions. [2021-06-05 03:46:10,226 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:10,226 INFO L276 IsEmpty]: Start isEmpty. Operand 5296 states and 24928 transitions. [2021-06-05 03:46:10,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:10,235 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:10,235 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:10,235 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable867 [2021-06-05 03:46:10,235 INFO L430 AbstractCegarLoop]: === Iteration 869 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:10,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:10,236 INFO L82 PathProgramCache]: Analyzing trace with hash -1845228887, now seen corresponding path program 864 times [2021-06-05 03:46:10,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:10,236 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507709634] [2021-06-05 03:46:10,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:10,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:10,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:10,347 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:10,347 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507709634] [2021-06-05 03:46:10,347 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507709634] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:10,347 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:10,347 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:10,347 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597787905] [2021-06-05 03:46:10,348 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:10,348 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:10,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:10,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:10,348 INFO L87 Difference]: Start difference. First operand 5296 states and 24928 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:10,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:10,464 INFO L93 Difference]: Finished difference Result 12033 states and 53609 transitions. [2021-06-05 03:46:10,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:10,464 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:10,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:10,493 INFO L225 Difference]: With dead ends: 12033 [2021-06-05 03:46:10,493 INFO L226 Difference]: Without dead ends: 11357 [2021-06-05 03:46:10,493 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 135.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:10,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11357 states. [2021-06-05 03:46:10,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11357 to 5095. [2021-06-05 03:46:10,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5095 states, 5094 states have (on average 4.756576364350216) internal successors, (24230), 5094 states have internal predecessors, (24230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:10,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5095 states to 5095 states and 24230 transitions. [2021-06-05 03:46:10,724 INFO L78 Accepts]: Start accepts. Automaton has 5095 states and 24230 transitions. Word has length 29 [2021-06-05 03:46:10,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:10,724 INFO L482 AbstractCegarLoop]: Abstraction has 5095 states and 24230 transitions. [2021-06-05 03:46:10,724 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:10,724 INFO L276 IsEmpty]: Start isEmpty. Operand 5095 states and 24230 transitions. [2021-06-05 03:46:10,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:10,733 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:10,733 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:10,733 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable868 [2021-06-05 03:46:10,733 INFO L430 AbstractCegarLoop]: === Iteration 870 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:10,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:10,733 INFO L82 PathProgramCache]: Analyzing trace with hash 761665991, now seen corresponding path program 865 times [2021-06-05 03:46:10,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:10,733 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257711668] [2021-06-05 03:46:10,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:10,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:10,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:10,859 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:10,859 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257711668] [2021-06-05 03:46:10,859 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257711668] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:10,859 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:10,859 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:10,859 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413586033] [2021-06-05 03:46:10,859 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:10,859 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:10,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:10,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:10,859 INFO L87 Difference]: Start difference. First operand 5095 states and 24230 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:10,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:10,973 INFO L93 Difference]: Finished difference Result 11722 states and 52452 transitions. [2021-06-05 03:46:10,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:10,973 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:10,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:11,001 INFO L225 Difference]: With dead ends: 11722 [2021-06-05 03:46:11,001 INFO L226 Difference]: Without dead ends: 11307 [2021-06-05 03:46:11,001 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 149.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:11,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11307 states. [2021-06-05 03:46:11,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11307 to 5259. [2021-06-05 03:46:11,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5259 states, 5258 states have (on average 4.7481932293647775) internal successors, (24966), 5258 states have internal predecessors, (24966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:11,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5259 states to 5259 states and 24966 transitions. [2021-06-05 03:46:11,231 INFO L78 Accepts]: Start accepts. Automaton has 5259 states and 24966 transitions. Word has length 29 [2021-06-05 03:46:11,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:11,231 INFO L482 AbstractCegarLoop]: Abstraction has 5259 states and 24966 transitions. [2021-06-05 03:46:11,231 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:11,231 INFO L276 IsEmpty]: Start isEmpty. Operand 5259 states and 24966 transitions. [2021-06-05 03:46:11,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:11,240 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:11,240 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:11,240 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable869 [2021-06-05 03:46:11,240 INFO L430 AbstractCegarLoop]: === Iteration 871 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:11,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:11,240 INFO L82 PathProgramCache]: Analyzing trace with hash -1778480697, now seen corresponding path program 866 times [2021-06-05 03:46:11,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:11,240 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667519066] [2021-06-05 03:46:11,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:11,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:11,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:11,366 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:11,366 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667519066] [2021-06-05 03:46:11,366 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667519066] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:11,366 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:11,367 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:11,367 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133445568] [2021-06-05 03:46:11,367 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:11,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:11,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:11,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:11,367 INFO L87 Difference]: Start difference. First operand 5259 states and 24966 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:11,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:11,474 INFO L93 Difference]: Finished difference Result 11849 states and 52931 transitions. [2021-06-05 03:46:11,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:11,474 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:11,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:11,501 INFO L225 Difference]: With dead ends: 11849 [2021-06-05 03:46:11,502 INFO L226 Difference]: Without dead ends: 11227 [2021-06-05 03:46:11,502 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 133.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:11,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11227 states. [2021-06-05 03:46:11,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11227 to 5179. [2021-06-05 03:46:11,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.752027809965237) internal successors, (24606), 5178 states have internal predecessors, (24606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:11,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24606 transitions. [2021-06-05 03:46:11,730 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24606 transitions. Word has length 29 [2021-06-05 03:46:11,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:11,730 INFO L482 AbstractCegarLoop]: Abstraction has 5179 states and 24606 transitions. [2021-06-05 03:46:11,731 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:11,731 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24606 transitions. [2021-06-05 03:46:11,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:11,739 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:11,739 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:11,739 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable870 [2021-06-05 03:46:11,739 INFO L430 AbstractCegarLoop]: === Iteration 872 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:11,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:11,739 INFO L82 PathProgramCache]: Analyzing trace with hash 541864135, now seen corresponding path program 867 times [2021-06-05 03:46:11,740 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:11,740 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748130627] [2021-06-05 03:46:11,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:11,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:11,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:11,866 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:11,866 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748130627] [2021-06-05 03:46:11,866 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748130627] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:11,866 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:11,866 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:11,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005919234] [2021-06-05 03:46:11,866 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:11,866 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:11,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:11,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:11,867 INFO L87 Difference]: Start difference. First operand 5179 states and 24606 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:11,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:11,982 INFO L93 Difference]: Finished difference Result 11625 states and 52010 transitions. [2021-06-05 03:46:11,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:11,982 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:11,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:12,010 INFO L225 Difference]: With dead ends: 11625 [2021-06-05 03:46:12,011 INFO L226 Difference]: Without dead ends: 11210 [2021-06-05 03:46:12,011 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 151.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:12,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11210 states. [2021-06-05 03:46:12,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11210 to 5227. [2021-06-05 03:46:12,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5227 states, 5226 states have (on average 4.742058936088787) internal successors, (24782), 5226 states have internal predecessors, (24782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:12,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5227 states to 5227 states and 24782 transitions. [2021-06-05 03:46:12,243 INFO L78 Accepts]: Start accepts. Automaton has 5227 states and 24782 transitions. Word has length 29 [2021-06-05 03:46:12,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:12,243 INFO L482 AbstractCegarLoop]: Abstraction has 5227 states and 24782 transitions. [2021-06-05 03:46:12,243 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:12,243 INFO L276 IsEmpty]: Start isEmpty. Operand 5227 states and 24782 transitions. [2021-06-05 03:46:12,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:12,252 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:12,252 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:12,252 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable871 [2021-06-05 03:46:12,252 INFO L430 AbstractCegarLoop]: === Iteration 873 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:12,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:12,252 INFO L82 PathProgramCache]: Analyzing trace with hash 1258527081, now seen corresponding path program 868 times [2021-06-05 03:46:12,252 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:12,252 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491330220] [2021-06-05 03:46:12,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:12,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:12,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:12,379 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:12,379 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491330220] [2021-06-05 03:46:12,380 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491330220] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:12,380 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:12,380 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:12,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743750125] [2021-06-05 03:46:12,380 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:12,380 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:12,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:12,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:12,380 INFO L87 Difference]: Start difference. First operand 5227 states and 24782 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:12,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:12,498 INFO L93 Difference]: Finished difference Result 11687 states and 52231 transitions. [2021-06-05 03:46:12,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:12,498 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:12,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:12,526 INFO L225 Difference]: With dead ends: 11687 [2021-06-05 03:46:12,526 INFO L226 Difference]: Without dead ends: 11162 [2021-06-05 03:46:12,526 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 152.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:12,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11162 states. [2021-06-05 03:46:12,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11162 to 5179. [2021-06-05 03:46:12,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.74739281575898) internal successors, (24582), 5178 states have internal predecessors, (24582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:12,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24582 transitions. [2021-06-05 03:46:12,757 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24582 transitions. Word has length 29 [2021-06-05 03:46:12,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:12,757 INFO L482 AbstractCegarLoop]: Abstraction has 5179 states and 24582 transitions. [2021-06-05 03:46:12,757 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:12,757 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24582 transitions. [2021-06-05 03:46:12,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:12,766 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:12,766 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:12,766 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable872 [2021-06-05 03:46:12,766 INFO L430 AbstractCegarLoop]: === Iteration 874 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:12,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:12,766 INFO L82 PathProgramCache]: Analyzing trace with hash -953214615, now seen corresponding path program 869 times [2021-06-05 03:46:12,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:12,766 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829630578] [2021-06-05 03:46:12,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:12,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:12,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:12,885 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:12,885 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829630578] [2021-06-05 03:46:12,885 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829630578] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:12,885 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:12,885 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:12,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929129635] [2021-06-05 03:46:12,885 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:12,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:12,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:12,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:12,886 INFO L87 Difference]: Start difference. First operand 5179 states and 24582 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:12,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:12,987 INFO L93 Difference]: Finished difference Result 11974 states and 53446 transitions. [2021-06-05 03:46:12,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:12,988 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:12,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:13,016 INFO L225 Difference]: With dead ends: 11974 [2021-06-05 03:46:13,017 INFO L226 Difference]: Without dead ends: 11432 [2021-06-05 03:46:13,017 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 126.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:13,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11432 states. [2021-06-05 03:46:13,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11432 to 5322. [2021-06-05 03:46:13,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5322 states, 5321 states have (on average 4.717346363465514) internal successors, (25101), 5321 states have internal predecessors, (25101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:13,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5322 states to 5322 states and 25101 transitions. [2021-06-05 03:46:13,251 INFO L78 Accepts]: Start accepts. Automaton has 5322 states and 25101 transitions. Word has length 29 [2021-06-05 03:46:13,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:13,251 INFO L482 AbstractCegarLoop]: Abstraction has 5322 states and 25101 transitions. [2021-06-05 03:46:13,252 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:13,252 INFO L276 IsEmpty]: Start isEmpty. Operand 5322 states and 25101 transitions. [2021-06-05 03:46:13,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:13,260 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:13,260 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:13,261 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable873 [2021-06-05 03:46:13,261 INFO L430 AbstractCegarLoop]: === Iteration 875 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:13,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:13,261 INFO L82 PathProgramCache]: Analyzing trace with hash 1298415687, now seen corresponding path program 870 times [2021-06-05 03:46:13,261 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:13,261 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471036410] [2021-06-05 03:46:13,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:13,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:13,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:13,381 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:13,381 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471036410] [2021-06-05 03:46:13,381 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471036410] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:13,381 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:13,381 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:13,381 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305880313] [2021-06-05 03:46:13,381 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:13,381 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:13,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:13,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:13,381 INFO L87 Difference]: Start difference. First operand 5322 states and 25101 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:13,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:13,518 INFO L93 Difference]: Finished difference Result 11909 states and 53077 transitions. [2021-06-05 03:46:13,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:13,518 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:13,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:13,545 INFO L225 Difference]: With dead ends: 11909 [2021-06-05 03:46:13,546 INFO L226 Difference]: Without dead ends: 11233 [2021-06-05 03:46:13,546 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 144.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:13,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11233 states. [2021-06-05 03:46:13,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11233 to 5123. [2021-06-05 03:46:13,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5123 states, 5122 states have (on average 4.754002342834831) internal successors, (24350), 5122 states have internal predecessors, (24350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:13,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5123 states to 5123 states and 24350 transitions. [2021-06-05 03:46:13,775 INFO L78 Accepts]: Start accepts. Automaton has 5123 states and 24350 transitions. Word has length 29 [2021-06-05 03:46:13,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:13,775 INFO L482 AbstractCegarLoop]: Abstraction has 5123 states and 24350 transitions. [2021-06-05 03:46:13,775 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:13,775 INFO L276 IsEmpty]: Start isEmpty. Operand 5123 states and 24350 transitions. [2021-06-05 03:46:13,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:13,784 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:13,784 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:13,784 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable874 [2021-06-05 03:46:13,784 INFO L430 AbstractCegarLoop]: === Iteration 876 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:13,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:13,784 INFO L82 PathProgramCache]: Analyzing trace with hash 354827497, now seen corresponding path program 871 times [2021-06-05 03:46:13,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:13,784 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011833477] [2021-06-05 03:46:13,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:13,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:13,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:13,913 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:13,913 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011833477] [2021-06-05 03:46:13,913 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011833477] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:13,913 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:13,913 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:13,913 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497662363] [2021-06-05 03:46:13,913 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:13,913 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:13,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:13,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:13,914 INFO L87 Difference]: Start difference. First operand 5123 states and 24350 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:14,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:14,033 INFO L93 Difference]: Finished difference Result 11573 states and 51809 transitions. [2021-06-05 03:46:14,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:14,033 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:14,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:14,061 INFO L225 Difference]: With dead ends: 11573 [2021-06-05 03:46:14,061 INFO L226 Difference]: Without dead ends: 11158 [2021-06-05 03:46:14,061 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 153.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:14,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11158 states. [2021-06-05 03:46:14,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11158 to 5243. [2021-06-05 03:46:14,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5243 states, 5242 states have (on average 4.745135444486837) internal successors, (24874), 5242 states have internal predecessors, (24874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:14,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5243 states to 5243 states and 24874 transitions. [2021-06-05 03:46:14,296 INFO L78 Accepts]: Start accepts. Automaton has 5243 states and 24874 transitions. Word has length 29 [2021-06-05 03:46:14,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:14,296 INFO L482 AbstractCegarLoop]: Abstraction has 5243 states and 24874 transitions. [2021-06-05 03:46:14,296 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:14,296 INFO L276 IsEmpty]: Start isEmpty. Operand 5243 states and 24874 transitions. [2021-06-05 03:46:14,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:14,305 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:14,305 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:14,305 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable875 [2021-06-05 03:46:14,305 INFO L430 AbstractCegarLoop]: === Iteration 877 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:14,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:14,305 INFO L82 PathProgramCache]: Analyzing trace with hash 2109648105, now seen corresponding path program 872 times [2021-06-05 03:46:14,305 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:14,305 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304205127] [2021-06-05 03:46:14,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:14,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:14,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:14,452 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:14,452 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304205127] [2021-06-05 03:46:14,452 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304205127] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:14,452 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:14,452 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:14,452 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577069216] [2021-06-05 03:46:14,452 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:14,452 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:14,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:14,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:14,452 INFO L87 Difference]: Start difference. First operand 5243 states and 24874 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:14,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:14,555 INFO L93 Difference]: Finished difference Result 11700 states and 52288 transitions. [2021-06-05 03:46:14,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:14,555 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:14,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:14,582 INFO L225 Difference]: With dead ends: 11700 [2021-06-05 03:46:14,583 INFO L226 Difference]: Without dead ends: 11078 [2021-06-05 03:46:14,583 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 150.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:14,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11078 states. [2021-06-05 03:46:14,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11078 to 5163. [2021-06-05 03:46:14,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5163 states, 5162 states have (on average 4.748934521503293) internal successors, (24514), 5162 states have internal predecessors, (24514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:14,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5163 states to 5163 states and 24514 transitions. [2021-06-05 03:46:14,823 INFO L78 Accepts]: Start accepts. Automaton has 5163 states and 24514 transitions. Word has length 29 [2021-06-05 03:46:14,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:14,824 INFO L482 AbstractCegarLoop]: Abstraction has 5163 states and 24514 transitions. [2021-06-05 03:46:14,824 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:14,824 INFO L276 IsEmpty]: Start isEmpty. Operand 5163 states and 24514 transitions. [2021-06-05 03:46:14,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:14,833 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:14,833 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:14,833 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable876 [2021-06-05 03:46:14,833 INFO L430 AbstractCegarLoop]: === Iteration 878 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:14,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:14,833 INFO L82 PathProgramCache]: Analyzing trace with hash -1182291577, now seen corresponding path program 873 times [2021-06-05 03:46:14,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:14,833 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590791005] [2021-06-05 03:46:14,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:14,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:14,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:14,955 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:14,955 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590791005] [2021-06-05 03:46:14,955 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590791005] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:14,955 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:14,955 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:14,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098504252] [2021-06-05 03:46:14,955 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:14,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:14,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:14,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:14,955 INFO L87 Difference]: Start difference. First operand 5163 states and 24514 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:15,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:15,074 INFO L93 Difference]: Finished difference Result 11366 states and 50922 transitions. [2021-06-05 03:46:15,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:15,074 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:15,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:15,102 INFO L225 Difference]: With dead ends: 11366 [2021-06-05 03:46:15,102 INFO L226 Difference]: Without dead ends: 10951 [2021-06-05 03:46:15,102 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 146.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:15,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10951 states. [2021-06-05 03:46:15,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10951 to 5211. [2021-06-05 03:46:15,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5211 states, 5210 states have (on average 4.7389635316698655) internal successors, (24690), 5210 states have internal predecessors, (24690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:15,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5211 states to 5211 states and 24690 transitions. [2021-06-05 03:46:15,338 INFO L78 Accepts]: Start accepts. Automaton has 5211 states and 24690 transitions. Word has length 29 [2021-06-05 03:46:15,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:15,338 INFO L482 AbstractCegarLoop]: Abstraction has 5211 states and 24690 transitions. [2021-06-05 03:46:15,338 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:15,338 INFO L276 IsEmpty]: Start isEmpty. Operand 5211 states and 24690 transitions. [2021-06-05 03:46:15,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:15,347 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:15,347 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:15,347 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable877 [2021-06-05 03:46:15,347 INFO L430 AbstractCegarLoop]: === Iteration 879 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:15,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:15,348 INFO L82 PathProgramCache]: Analyzing trace with hash 1366650921, now seen corresponding path program 874 times [2021-06-05 03:46:15,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:15,348 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521424740] [2021-06-05 03:46:15,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:15,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:15,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:15,469 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:15,469 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521424740] [2021-06-05 03:46:15,469 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521424740] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:15,469 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:15,470 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:15,470 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394082196] [2021-06-05 03:46:15,470 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:15,470 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:15,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:15,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:15,470 INFO L87 Difference]: Start difference. First operand 5211 states and 24690 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:15,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:15,583 INFO L93 Difference]: Finished difference Result 11094 states and 49913 transitions. [2021-06-05 03:46:15,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:15,583 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:15,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:15,610 INFO L225 Difference]: With dead ends: 11094 [2021-06-05 03:46:15,610 INFO L226 Difference]: Without dead ends: 10583 [2021-06-05 03:46:15,611 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 145.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:15,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10583 states. [2021-06-05 03:46:15,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10583 to 5163. [2021-06-05 03:46:15,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5163 states, 5162 states have (on average 4.744285160790391) internal successors, (24490), 5162 states have internal predecessors, (24490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:15,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5163 states to 5163 states and 24490 transitions. [2021-06-05 03:46:15,887 INFO L78 Accepts]: Start accepts. Automaton has 5163 states and 24490 transitions. Word has length 29 [2021-06-05 03:46:15,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:15,887 INFO L482 AbstractCegarLoop]: Abstraction has 5163 states and 24490 transitions. [2021-06-05 03:46:15,887 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:15,888 INFO L276 IsEmpty]: Start isEmpty. Operand 5163 states and 24490 transitions. [2021-06-05 03:46:15,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:15,896 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:15,896 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:15,896 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable878 [2021-06-05 03:46:15,896 INFO L430 AbstractCegarLoop]: === Iteration 880 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:15,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:15,897 INFO L82 PathProgramCache]: Analyzing trace with hash 761081897, now seen corresponding path program 875 times [2021-06-05 03:46:15,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:15,897 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443887436] [2021-06-05 03:46:15,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:15,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:16,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:16,030 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:16,031 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443887436] [2021-06-05 03:46:16,031 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443887436] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:16,031 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:16,031 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:16,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449408955] [2021-06-05 03:46:16,031 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:16,031 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:16,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:16,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:16,031 INFO L87 Difference]: Start difference. First operand 5163 states and 24490 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:16,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:16,139 INFO L93 Difference]: Finished difference Result 11549 states and 51693 transitions. [2021-06-05 03:46:16,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:16,139 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:16,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:16,166 INFO L225 Difference]: With dead ends: 11549 [2021-06-05 03:46:16,167 INFO L226 Difference]: Without dead ends: 11007 [2021-06-05 03:46:16,167 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 141.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:16,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11007 states. [2021-06-05 03:46:16,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11007 to 5267. [2021-06-05 03:46:16,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5267 states, 5266 states have (on average 4.7242688947968094) internal successors, (24878), 5266 states have internal predecessors, (24878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:16,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5267 states to 5267 states and 24878 transitions. [2021-06-05 03:46:16,402 INFO L78 Accepts]: Start accepts. Automaton has 5267 states and 24878 transitions. Word has length 29 [2021-06-05 03:46:16,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:16,402 INFO L482 AbstractCegarLoop]: Abstraction has 5267 states and 24878 transitions. [2021-06-05 03:46:16,402 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:16,402 INFO L276 IsEmpty]: Start isEmpty. Operand 5267 states and 24878 transitions. [2021-06-05 03:46:16,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:16,411 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:16,411 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:16,411 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable879 [2021-06-05 03:46:16,411 INFO L430 AbstractCegarLoop]: === Iteration 881 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:16,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:16,412 INFO L82 PathProgramCache]: Analyzing trace with hash 1322514695, now seen corresponding path program 876 times [2021-06-05 03:46:16,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:16,412 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7535069] [2021-06-05 03:46:16,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:16,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:16,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:16,545 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:16,545 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7535069] [2021-06-05 03:46:16,545 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7535069] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:16,545 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:16,545 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:16,545 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993622752] [2021-06-05 03:46:16,545 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:16,545 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:16,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:16,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:16,546 INFO L87 Difference]: Start difference. First operand 5267 states and 24878 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:16,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:16,668 INFO L93 Difference]: Finished difference Result 11150 states and 50101 transitions. [2021-06-05 03:46:16,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:16,668 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:16,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:16,694 INFO L225 Difference]: With dead ends: 11150 [2021-06-05 03:46:16,695 INFO L226 Difference]: Without dead ends: 10543 [2021-06-05 03:46:16,695 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 157.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:16,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10543 states. [2021-06-05 03:46:16,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10543 to 5123. [2021-06-05 03:46:16,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5123 states, 5122 states have (on average 4.750097618117922) internal successors, (24330), 5122 states have internal predecessors, (24330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:16,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5123 states to 5123 states and 24330 transitions. [2021-06-05 03:46:16,924 INFO L78 Accepts]: Start accepts. Automaton has 5123 states and 24330 transitions. Word has length 29 [2021-06-05 03:46:16,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:16,924 INFO L482 AbstractCegarLoop]: Abstraction has 5123 states and 24330 transitions. [2021-06-05 03:46:16,924 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:16,924 INFO L276 IsEmpty]: Start isEmpty. Operand 5123 states and 24330 transitions. [2021-06-05 03:46:16,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:16,932 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:16,933 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:16,933 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable880 [2021-06-05 03:46:16,933 INFO L430 AbstractCegarLoop]: === Iteration 882 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:16,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:16,933 INFO L82 PathProgramCache]: Analyzing trace with hash 1595916423, now seen corresponding path program 877 times [2021-06-05 03:46:16,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:16,933 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049407910] [2021-06-05 03:46:16,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:16,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:17,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:17,062 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:17,062 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049407910] [2021-06-05 03:46:17,062 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049407910] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:17,062 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:17,062 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:17,062 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391894270] [2021-06-05 03:46:17,062 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:17,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:17,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:17,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:17,062 INFO L87 Difference]: Start difference. First operand 5123 states and 24330 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:17,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:17,193 INFO L93 Difference]: Finished difference Result 11363 states and 50905 transitions. [2021-06-05 03:46:17,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:17,193 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:17,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:17,221 INFO L225 Difference]: With dead ends: 11363 [2021-06-05 03:46:17,221 INFO L226 Difference]: Without dead ends: 10948 [2021-06-05 03:46:17,221 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 153.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:17,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10948 states. [2021-06-05 03:46:17,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10948 to 5195. [2021-06-05 03:46:17,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5195 states, 5194 states have (on average 4.74201001155179) internal successors, (24630), 5194 states have internal predecessors, (24630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:17,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5195 states to 5195 states and 24630 transitions. [2021-06-05 03:46:17,454 INFO L78 Accepts]: Start accepts. Automaton has 5195 states and 24630 transitions. Word has length 29 [2021-06-05 03:46:17,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:17,454 INFO L482 AbstractCegarLoop]: Abstraction has 5195 states and 24630 transitions. [2021-06-05 03:46:17,454 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:17,454 INFO L276 IsEmpty]: Start isEmpty. Operand 5195 states and 24630 transitions. [2021-06-05 03:46:17,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:17,463 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:17,463 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:17,463 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable881 [2021-06-05 03:46:17,463 INFO L430 AbstractCegarLoop]: === Iteration 883 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:17,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:17,463 INFO L82 PathProgramCache]: Analyzing trace with hash -1982387927, now seen corresponding path program 878 times [2021-06-05 03:46:17,463 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:17,463 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139174889] [2021-06-05 03:46:17,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:17,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:17,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:17,590 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:17,590 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139174889] [2021-06-05 03:46:17,590 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139174889] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:17,590 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:17,590 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:17,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849619991] [2021-06-05 03:46:17,591 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:17,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:17,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:17,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:17,591 INFO L87 Difference]: Start difference. First operand 5195 states and 24630 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:17,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:17,711 INFO L93 Difference]: Finished difference Result 11425 states and 51126 transitions. [2021-06-05 03:46:17,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:17,711 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:17,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:17,738 INFO L225 Difference]: With dead ends: 11425 [2021-06-05 03:46:17,739 INFO L226 Difference]: Without dead ends: 10900 [2021-06-05 03:46:17,739 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 152.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:17,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10900 states. [2021-06-05 03:46:17,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10900 to 5147. [2021-06-05 03:46:17,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5147 states, 5146 states have (on average 4.747376603186941) internal successors, (24430), 5146 states have internal predecessors, (24430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:17,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5147 states to 5147 states and 24430 transitions. [2021-06-05 03:46:17,969 INFO L78 Accepts]: Start accepts. Automaton has 5147 states and 24430 transitions. Word has length 29 [2021-06-05 03:46:17,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:17,970 INFO L482 AbstractCegarLoop]: Abstraction has 5147 states and 24430 transitions. [2021-06-05 03:46:17,970 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:17,970 INFO L276 IsEmpty]: Start isEmpty. Operand 5147 states and 24430 transitions. [2021-06-05 03:46:17,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:17,978 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:17,978 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:17,979 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable882 [2021-06-05 03:46:17,979 INFO L430 AbstractCegarLoop]: === Iteration 884 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:17,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:17,979 INFO L82 PathProgramCache]: Analyzing trace with hash -964158615, now seen corresponding path program 879 times [2021-06-05 03:46:17,979 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:17,979 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184508243] [2021-06-05 03:46:17,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:17,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:18,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:18,106 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:18,106 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184508243] [2021-06-05 03:46:18,106 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184508243] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:18,106 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:18,106 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:18,106 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157213288] [2021-06-05 03:46:18,106 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:18,106 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:18,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:18,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:18,106 INFO L87 Difference]: Start difference. First operand 5147 states and 24430 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:18,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:18,226 INFO L93 Difference]: Finished difference Result 11253 states and 50436 transitions. [2021-06-05 03:46:18,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:18,226 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:18,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:18,254 INFO L225 Difference]: With dead ends: 11253 [2021-06-05 03:46:18,254 INFO L226 Difference]: Without dead ends: 10838 [2021-06-05 03:46:18,254 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 147.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:18,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10838 states. [2021-06-05 03:46:18,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10838 to 5195. [2021-06-05 03:46:18,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5195 states, 5194 states have (on average 4.737389295340778) internal successors, (24606), 5194 states have internal predecessors, (24606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:18,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5195 states to 5195 states and 24606 transitions. [2021-06-05 03:46:18,508 INFO L78 Accepts]: Start accepts. Automaton has 5195 states and 24606 transitions. Word has length 29 [2021-06-05 03:46:18,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:18,508 INFO L482 AbstractCegarLoop]: Abstraction has 5195 states and 24606 transitions. [2021-06-05 03:46:18,509 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:18,509 INFO L276 IsEmpty]: Start isEmpty. Operand 5195 states and 24606 transitions. [2021-06-05 03:46:18,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:18,520 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:18,520 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:18,520 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable883 [2021-06-05 03:46:18,520 INFO L430 AbstractCegarLoop]: === Iteration 885 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:18,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:18,520 INFO L82 PathProgramCache]: Analyzing trace with hash 590464809, now seen corresponding path program 880 times [2021-06-05 03:46:18,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:18,520 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659715581] [2021-06-05 03:46:18,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:18,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:18,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:18,644 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:18,644 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659715581] [2021-06-05 03:46:18,645 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659715581] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:18,645 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:18,645 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:18,645 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408339514] [2021-06-05 03:46:18,645 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:18,645 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:18,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:18,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:18,645 INFO L87 Difference]: Start difference. First operand 5195 states and 24606 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:18,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:18,759 INFO L93 Difference]: Finished difference Result 10981 states and 49427 transitions. [2021-06-05 03:46:18,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:18,759 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:18,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:18,786 INFO L225 Difference]: With dead ends: 10981 [2021-06-05 03:46:18,786 INFO L226 Difference]: Without dead ends: 10470 [2021-06-05 03:46:18,786 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 145.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:18,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10470 states. [2021-06-05 03:46:18,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10470 to 5147. [2021-06-05 03:46:19,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5147 states, 5146 states have (on average 4.742712786630393) internal successors, (24406), 5146 states have internal predecessors, (24406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:19,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5147 states to 5147 states and 24406 transitions. [2021-06-05 03:46:19,014 INFO L78 Accepts]: Start accepts. Automaton has 5147 states and 24406 transitions. Word has length 29 [2021-06-05 03:46:19,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:19,014 INFO L482 AbstractCegarLoop]: Abstraction has 5147 states and 24406 transitions. [2021-06-05 03:46:19,014 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:19,014 INFO L276 IsEmpty]: Start isEmpty. Operand 5147 states and 24406 transitions. [2021-06-05 03:46:19,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:19,023 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:19,023 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:19,023 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable884 [2021-06-05 03:46:19,023 INFO L430 AbstractCegarLoop]: === Iteration 886 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:19,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:19,023 INFO L82 PathProgramCache]: Analyzing trace with hash -580006069, now seen corresponding path program 881 times [2021-06-05 03:46:19,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:19,023 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676097902] [2021-06-05 03:46:19,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:19,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:19,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:19,154 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:19,154 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676097902] [2021-06-05 03:46:19,154 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676097902] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:19,154 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:19,154 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:19,154 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145120594] [2021-06-05 03:46:19,154 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:19,154 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:19,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:19,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:19,155 INFO L87 Difference]: Start difference. First operand 5147 states and 24406 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:19,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:19,288 INFO L93 Difference]: Finished difference Result 11339 states and 50805 transitions. [2021-06-05 03:46:19,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:19,288 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:19,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:19,317 INFO L225 Difference]: With dead ends: 11339 [2021-06-05 03:46:19,317 INFO L226 Difference]: Without dead ends: 10862 [2021-06-05 03:46:19,317 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 155.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:19,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10862 states. [2021-06-05 03:46:19,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10862 to 5219. [2021-06-05 03:46:19,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5219 states, 5218 states have (on average 4.730164814105021) internal successors, (24682), 5218 states have internal predecessors, (24682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:19,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5219 states to 5219 states and 24682 transitions. [2021-06-05 03:46:19,559 INFO L78 Accepts]: Start accepts. Automaton has 5219 states and 24682 transitions. Word has length 29 [2021-06-05 03:46:19,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:19,559 INFO L482 AbstractCegarLoop]: Abstraction has 5219 states and 24682 transitions. [2021-06-05 03:46:19,559 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:19,559 INFO L276 IsEmpty]: Start isEmpty. Operand 5219 states and 24682 transitions. [2021-06-05 03:46:19,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:19,568 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:19,568 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:19,568 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable885 [2021-06-05 03:46:19,568 INFO L430 AbstractCegarLoop]: === Iteration 887 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:19,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:19,568 INFO L82 PathProgramCache]: Analyzing trace with hash -669765719, now seen corresponding path program 882 times [2021-06-05 03:46:19,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:19,568 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984848851] [2021-06-05 03:46:19,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:19,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:19,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:19,698 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:19,698 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984848851] [2021-06-05 03:46:19,698 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984848851] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:19,698 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:19,698 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:19,698 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085014635] [2021-06-05 03:46:19,698 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:19,698 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:19,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:19,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:19,698 INFO L87 Difference]: Start difference. First operand 5219 states and 24682 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:19,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:19,819 INFO L93 Difference]: Finished difference Result 11005 states and 49503 transitions. [2021-06-05 03:46:19,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:19,820 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:19,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:19,846 INFO L225 Difference]: With dead ends: 11005 [2021-06-05 03:46:19,846 INFO L226 Difference]: Without dead ends: 10446 [2021-06-05 03:46:19,846 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 153.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:19,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10446 states. [2021-06-05 03:46:20,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10446 to 5123. [2021-06-05 03:46:20,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5123 states, 5122 states have (on average 4.747754783287778) internal successors, (24318), 5122 states have internal predecessors, (24318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:20,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5123 states to 5123 states and 24318 transitions. [2021-06-05 03:46:20,078 INFO L78 Accepts]: Start accepts. Automaton has 5123 states and 24318 transitions. Word has length 29 [2021-06-05 03:46:20,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:20,078 INFO L482 AbstractCegarLoop]: Abstraction has 5123 states and 24318 transitions. [2021-06-05 03:46:20,079 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:20,079 INFO L276 IsEmpty]: Start isEmpty. Operand 5123 states and 24318 transitions. [2021-06-05 03:46:20,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:20,087 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:20,087 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:20,088 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable886 [2021-06-05 03:46:20,088 INFO L430 AbstractCegarLoop]: === Iteration 888 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:20,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:20,088 INFO L82 PathProgramCache]: Analyzing trace with hash 911515467, now seen corresponding path program 883 times [2021-06-05 03:46:20,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:20,088 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98279006] [2021-06-05 03:46:20,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:20,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:20,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:20,208 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:20,208 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98279006] [2021-06-05 03:46:20,208 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98279006] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:20,208 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:20,208 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:20,208 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148443832] [2021-06-05 03:46:20,208 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:20,209 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:20,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:20,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:20,209 INFO L87 Difference]: Start difference. First operand 5123 states and 24318 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:20,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:20,311 INFO L93 Difference]: Finished difference Result 11939 states and 53360 transitions. [2021-06-05 03:46:20,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:20,311 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:20,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:20,340 INFO L225 Difference]: With dead ends: 11939 [2021-06-05 03:46:20,341 INFO L226 Difference]: Without dead ends: 11397 [2021-06-05 03:46:20,341 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:20,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11397 states. [2021-06-05 03:46:20,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11397 to 5334. [2021-06-05 03:46:20,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5334 states, 5333 states have (on average 4.720232514532158) internal successors, (25173), 5333 states have internal predecessors, (25173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:20,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5334 states to 5334 states and 25173 transitions. [2021-06-05 03:46:20,594 INFO L78 Accepts]: Start accepts. Automaton has 5334 states and 25173 transitions. Word has length 29 [2021-06-05 03:46:20,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:20,594 INFO L482 AbstractCegarLoop]: Abstraction has 5334 states and 25173 transitions. [2021-06-05 03:46:20,594 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:20,594 INFO L276 IsEmpty]: Start isEmpty. Operand 5334 states and 25173 transitions. [2021-06-05 03:46:20,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:20,603 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:20,603 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:20,603 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable887 [2021-06-05 03:46:20,603 INFO L430 AbstractCegarLoop]: === Iteration 889 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:20,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:20,603 INFO L82 PathProgramCache]: Analyzing trace with hash -1131821527, now seen corresponding path program 884 times [2021-06-05 03:46:20,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:20,603 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984713084] [2021-06-05 03:46:20,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:20,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:20,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:20,723 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:20,723 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984713084] [2021-06-05 03:46:20,723 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984713084] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:20,724 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:20,724 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:20,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797841529] [2021-06-05 03:46:20,724 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:20,724 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:20,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:20,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:20,724 INFO L87 Difference]: Start difference. First operand 5334 states and 25173 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:20,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:20,839 INFO L93 Difference]: Finished difference Result 11874 states and 52991 transitions. [2021-06-05 03:46:20,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:20,840 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:20,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:20,870 INFO L225 Difference]: With dead ends: 11874 [2021-06-05 03:46:20,870 INFO L226 Difference]: Without dead ends: 11254 [2021-06-05 03:46:20,870 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 145.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:20,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11254 states. [2021-06-05 03:46:21,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11254 to 5191. [2021-06-05 03:46:21,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.737186897880539) internal successors, (24586), 5190 states have internal predecessors, (24586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:21,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24586 transitions. [2021-06-05 03:46:21,103 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24586 transitions. Word has length 29 [2021-06-05 03:46:21,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:21,103 INFO L482 AbstractCegarLoop]: Abstraction has 5191 states and 24586 transitions. [2021-06-05 03:46:21,103 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:21,103 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24586 transitions. [2021-06-05 03:46:21,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:21,111 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:21,111 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:21,112 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable888 [2021-06-05 03:46:21,112 INFO L430 AbstractCegarLoop]: === Iteration 890 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:21,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:21,112 INFO L82 PathProgramCache]: Analyzing trace with hash 551837737, now seen corresponding path program 885 times [2021-06-05 03:46:21,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:21,112 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361410125] [2021-06-05 03:46:21,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:21,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:21,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:21,247 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:21,247 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361410125] [2021-06-05 03:46:21,247 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361410125] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:21,247 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:21,247 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:21,247 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767692185] [2021-06-05 03:46:21,247 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:21,247 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:21,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:21,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:21,247 INFO L87 Difference]: Start difference. First operand 5191 states and 24586 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:21,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:21,341 INFO L93 Difference]: Finished difference Result 11663 states and 52182 transitions. [2021-06-05 03:46:21,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:21,341 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:21,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:21,368 INFO L225 Difference]: With dead ends: 11663 [2021-06-05 03:46:21,368 INFO L226 Difference]: Without dead ends: 11121 [2021-06-05 03:46:21,368 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 143.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:21,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11121 states. [2021-06-05 03:46:21,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11121 to 5295. [2021-06-05 03:46:21,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5295 states, 5294 states have (on average 4.717415942576502) internal successors, (24974), 5294 states have internal predecessors, (24974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:21,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5295 states to 5295 states and 24974 transitions. [2021-06-05 03:46:21,598 INFO L78 Accepts]: Start accepts. Automaton has 5295 states and 24974 transitions. Word has length 29 [2021-06-05 03:46:21,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:21,598 INFO L482 AbstractCegarLoop]: Abstraction has 5295 states and 24974 transitions. [2021-06-05 03:46:21,598 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:21,598 INFO L276 IsEmpty]: Start isEmpty. Operand 5295 states and 24974 transitions. [2021-06-05 03:46:21,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:21,607 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:21,607 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:21,607 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable889 [2021-06-05 03:46:21,607 INFO L430 AbstractCegarLoop]: === Iteration 891 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:21,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:21,607 INFO L82 PathProgramCache]: Analyzing trace with hash -165730263, now seen corresponding path program 886 times [2021-06-05 03:46:21,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:21,607 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254513587] [2021-06-05 03:46:21,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:21,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:21,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:21,739 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:21,739 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254513587] [2021-06-05 03:46:21,739 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254513587] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:21,739 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:21,739 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:21,739 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295808588] [2021-06-05 03:46:21,740 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:21,740 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:21,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:21,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:21,740 INFO L87 Difference]: Start difference. First operand 5295 states and 24974 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:21,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:21,852 INFO L93 Difference]: Finished difference Result 11264 states and 50590 transitions. [2021-06-05 03:46:21,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:21,852 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:21,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:21,878 INFO L225 Difference]: With dead ends: 11264 [2021-06-05 03:46:21,878 INFO L226 Difference]: Without dead ends: 10697 [2021-06-05 03:46:21,879 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 156.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:21,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10697 states. [2021-06-05 03:46:22,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10697 to 5191. [2021-06-05 03:46:22,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.727167630057804) internal successors, (24534), 5190 states have internal predecessors, (24534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:22,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24534 transitions. [2021-06-05 03:46:22,106 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24534 transitions. Word has length 29 [2021-06-05 03:46:22,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:22,106 INFO L482 AbstractCegarLoop]: Abstraction has 5191 states and 24534 transitions. [2021-06-05 03:46:22,107 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:22,107 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24534 transitions. [2021-06-05 03:46:22,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:22,115 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:22,115 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:22,115 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable890 [2021-06-05 03:46:22,115 INFO L430 AbstractCegarLoop]: === Iteration 892 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:22,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:22,115 INFO L82 PathProgramCache]: Analyzing trace with hash 1534185351, now seen corresponding path program 887 times [2021-06-05 03:46:22,115 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:22,115 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944974386] [2021-06-05 03:46:22,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:22,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:22,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:22,246 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:22,246 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944974386] [2021-06-05 03:46:22,246 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944974386] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:22,246 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:22,246 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:22,246 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902130229] [2021-06-05 03:46:22,247 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:22,247 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:22,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:22,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:22,247 INFO L87 Difference]: Start difference. First operand 5191 states and 24534 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:22,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:22,359 INFO L93 Difference]: Finished difference Result 11566 states and 51728 transitions. [2021-06-05 03:46:22,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:22,359 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:22,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:22,386 INFO L225 Difference]: With dead ends: 11566 [2021-06-05 03:46:22,386 INFO L226 Difference]: Without dead ends: 11089 [2021-06-05 03:46:22,386 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 155.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:22,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11089 states. [2021-06-05 03:46:22,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11089 to 5263. [2021-06-05 03:46:22,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5263 states, 5262 states have (on average 4.714937286202964) internal successors, (24810), 5262 states have internal predecessors, (24810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:22,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5263 states to 5263 states and 24810 transitions. [2021-06-05 03:46:22,620 INFO L78 Accepts]: Start accepts. Automaton has 5263 states and 24810 transitions. Word has length 29 [2021-06-05 03:46:22,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:22,620 INFO L482 AbstractCegarLoop]: Abstraction has 5263 states and 24810 transitions. [2021-06-05 03:46:22,620 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:22,621 INFO L276 IsEmpty]: Start isEmpty. Operand 5263 states and 24810 transitions. [2021-06-05 03:46:22,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:22,629 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:22,629 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:22,629 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable891 [2021-06-05 03:46:22,629 INFO L430 AbstractCegarLoop]: === Iteration 893 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:22,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:22,630 INFO L82 PathProgramCache]: Analyzing trace with hash -1248363799, now seen corresponding path program 888 times [2021-06-05 03:46:22,630 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:22,630 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355549820] [2021-06-05 03:46:22,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:22,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:22,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:22,782 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:22,782 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355549820] [2021-06-05 03:46:22,782 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355549820] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:22,782 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:22,782 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:22,782 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654766300] [2021-06-05 03:46:22,782 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:22,782 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:22,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:22,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:22,782 INFO L87 Difference]: Start difference. First operand 5263 states and 24810 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:22,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:22,894 INFO L93 Difference]: Finished difference Result 11232 states and 50426 transitions. [2021-06-05 03:46:22,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:22,895 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:22,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:22,921 INFO L225 Difference]: With dead ends: 11232 [2021-06-05 03:46:22,922 INFO L226 Difference]: Without dead ends: 10601 [2021-06-05 03:46:22,922 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 170.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:23,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10601 states. [2021-06-05 03:46:23,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10601 to 5095. [2021-06-05 03:46:23,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5095 states, 5094 states have (on average 4.7538280329799765) internal successors, (24216), 5094 states have internal predecessors, (24216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:23,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5095 states to 5095 states and 24216 transitions. [2021-06-05 03:46:23,148 INFO L78 Accepts]: Start accepts. Automaton has 5095 states and 24216 transitions. Word has length 29 [2021-06-05 03:46:23,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:23,148 INFO L482 AbstractCegarLoop]: Abstraction has 5095 states and 24216 transitions. [2021-06-05 03:46:23,148 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:23,148 INFO L276 IsEmpty]: Start isEmpty. Operand 5095 states and 24216 transitions. [2021-06-05 03:46:23,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:23,156 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:23,156 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:23,157 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable892 [2021-06-05 03:46:23,157 INFO L430 AbstractCegarLoop]: === Iteration 894 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:23,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:23,157 INFO L82 PathProgramCache]: Analyzing trace with hash 87880041, now seen corresponding path program 889 times [2021-06-05 03:46:23,157 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:23,157 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778768302] [2021-06-05 03:46:23,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:23,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:23,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:23,278 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:23,278 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778768302] [2021-06-05 03:46:23,278 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778768302] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:23,278 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:23,278 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:23,278 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61010420] [2021-06-05 03:46:23,278 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:23,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:23,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:23,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:23,278 INFO L87 Difference]: Start difference. First operand 5095 states and 24216 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:23,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:23,392 INFO L93 Difference]: Finished difference Result 11612 states and 52034 transitions. [2021-06-05 03:46:23,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:23,392 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:23,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:23,420 INFO L225 Difference]: With dead ends: 11612 [2021-06-05 03:46:23,420 INFO L226 Difference]: Without dead ends: 11197 [2021-06-05 03:46:23,420 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 145.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:23,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11197 states. [2021-06-05 03:46:23,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11197 to 5235. [2021-06-05 03:46:23,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5235 states, 5234 states have (on average 4.748184944593046) internal successors, (24852), 5234 states have internal predecessors, (24852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:23,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5235 states to 5235 states and 24852 transitions. [2021-06-05 03:46:23,650 INFO L78 Accepts]: Start accepts. Automaton has 5235 states and 24852 transitions. Word has length 29 [2021-06-05 03:46:23,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:23,651 INFO L482 AbstractCegarLoop]: Abstraction has 5235 states and 24852 transitions. [2021-06-05 03:46:23,651 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:23,651 INFO L276 IsEmpty]: Start isEmpty. Operand 5235 states and 24852 transitions. [2021-06-05 03:46:23,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:23,659 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:23,659 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:23,659 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable893 [2021-06-05 03:46:23,659 INFO L430 AbstractCegarLoop]: === Iteration 895 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:23,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:23,660 INFO L82 PathProgramCache]: Analyzing trace with hash 1842700649, now seen corresponding path program 890 times [2021-06-05 03:46:23,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:23,660 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567945323] [2021-06-05 03:46:23,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:23,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:23,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:23,794 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:23,794 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567945323] [2021-06-05 03:46:23,794 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567945323] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:23,794 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:23,794 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:23,794 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358200194] [2021-06-05 03:46:23,795 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:23,795 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:23,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:23,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:23,795 INFO L87 Difference]: Start difference. First operand 5235 states and 24852 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:23,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:23,895 INFO L93 Difference]: Finished difference Result 11739 states and 52513 transitions. [2021-06-05 03:46:23,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:23,895 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:23,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:23,923 INFO L225 Difference]: With dead ends: 11739 [2021-06-05 03:46:23,923 INFO L226 Difference]: Without dead ends: 11117 [2021-06-05 03:46:23,924 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 132.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:24,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11117 states. [2021-06-05 03:46:24,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11117 to 5155. [2021-06-05 03:46:24,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5155 states, 5154 states have (on average 4.752037252619325) internal successors, (24492), 5154 states have internal predecessors, (24492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:24,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 24492 transitions. [2021-06-05 03:46:24,155 INFO L78 Accepts]: Start accepts. Automaton has 5155 states and 24492 transitions. Word has length 29 [2021-06-05 03:46:24,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:24,155 INFO L482 AbstractCegarLoop]: Abstraction has 5155 states and 24492 transitions. [2021-06-05 03:46:24,155 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:24,156 INFO L276 IsEmpty]: Start isEmpty. Operand 5155 states and 24492 transitions. [2021-06-05 03:46:24,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:24,164 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:24,164 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:24,164 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable894 [2021-06-05 03:46:24,164 INFO L430 AbstractCegarLoop]: === Iteration 896 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:24,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:24,165 INFO L82 PathProgramCache]: Analyzing trace with hash -1799623417, now seen corresponding path program 891 times [2021-06-05 03:46:24,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:24,165 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458340514] [2021-06-05 03:46:24,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:24,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:24,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:24,303 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:24,303 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458340514] [2021-06-05 03:46:24,303 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458340514] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:24,303 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:24,303 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:24,304 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463648976] [2021-06-05 03:46:24,304 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:24,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:24,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:24,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:24,304 INFO L87 Difference]: Start difference. First operand 5155 states and 24492 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:24,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:24,432 INFO L93 Difference]: Finished difference Result 11513 states and 51587 transitions. [2021-06-05 03:46:24,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:24,432 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:24,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:24,461 INFO L225 Difference]: With dead ends: 11513 [2021-06-05 03:46:24,461 INFO L226 Difference]: Without dead ends: 11098 [2021-06-05 03:46:24,461 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 151.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:24,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11098 states. [2021-06-05 03:46:24,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11098 to 5203. [2021-06-05 03:46:24,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5203 states, 5202 states have (on average 4.742022299115725) internal successors, (24668), 5202 states have internal predecessors, (24668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:24,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5203 states to 5203 states and 24668 transitions. [2021-06-05 03:46:24,701 INFO L78 Accepts]: Start accepts. Automaton has 5203 states and 24668 transitions. Word has length 29 [2021-06-05 03:46:24,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:24,701 INFO L482 AbstractCegarLoop]: Abstraction has 5203 states and 24668 transitions. [2021-06-05 03:46:24,701 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:24,701 INFO L276 IsEmpty]: Start isEmpty. Operand 5203 states and 24668 transitions. [2021-06-05 03:46:24,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:24,710 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:24,710 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:24,710 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable895 [2021-06-05 03:46:24,710 INFO L430 AbstractCegarLoop]: === Iteration 897 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:24,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:24,710 INFO L82 PathProgramCache]: Analyzing trace with hash 1980662953, now seen corresponding path program 892 times [2021-06-05 03:46:24,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:24,710 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049555969] [2021-06-05 03:46:24,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:24,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:24,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:24,841 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:24,841 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049555969] [2021-06-05 03:46:24,841 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049555969] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:24,841 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:24,841 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:24,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415582030] [2021-06-05 03:46:24,841 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:24,841 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:24,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:24,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:24,841 INFO L87 Difference]: Start difference. First operand 5203 states and 24668 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:24,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:24,983 INFO L93 Difference]: Finished difference Result 11573 states and 51803 transitions. [2021-06-05 03:46:24,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:24,983 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:24,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:25,011 INFO L225 Difference]: With dead ends: 11573 [2021-06-05 03:46:25,011 INFO L226 Difference]: Without dead ends: 11050 [2021-06-05 03:46:25,011 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 155.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:25,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11050 states. [2021-06-05 03:46:25,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11050 to 5155. [2021-06-05 03:46:25,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5155 states, 5154 states have (on average 4.7473806752037255) internal successors, (24468), 5154 states have internal predecessors, (24468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:25,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 24468 transitions. [2021-06-05 03:46:25,247 INFO L78 Accepts]: Start accepts. Automaton has 5155 states and 24468 transitions. Word has length 29 [2021-06-05 03:46:25,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:25,247 INFO L482 AbstractCegarLoop]: Abstraction has 5155 states and 24468 transitions. [2021-06-05 03:46:25,247 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:25,247 INFO L276 IsEmpty]: Start isEmpty. Operand 5155 states and 24468 transitions. [2021-06-05 03:46:25,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:25,256 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:25,256 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:25,256 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable896 [2021-06-05 03:46:25,256 INFO L430 AbstractCegarLoop]: === Iteration 898 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:25,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:25,256 INFO L82 PathProgramCache]: Analyzing trace with hash -1575476055, now seen corresponding path program 893 times [2021-06-05 03:46:25,256 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:25,256 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376826972] [2021-06-05 03:46:25,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:25,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:25,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:25,371 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:25,371 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376826972] [2021-06-05 03:46:25,371 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376826972] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:25,371 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:25,371 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:25,371 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225396260] [2021-06-05 03:46:25,371 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:25,372 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:25,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:25,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:25,372 INFO L87 Difference]: Start difference. First operand 5155 states and 24468 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:25,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:25,511 INFO L93 Difference]: Finished difference Result 11829 states and 52908 transitions. [2021-06-05 03:46:25,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:25,511 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:25,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:25,539 INFO L225 Difference]: With dead ends: 11829 [2021-06-05 03:46:25,539 INFO L226 Difference]: Without dead ends: 11287 [2021-06-05 03:46:25,539 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 122.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:25,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11287 states. [2021-06-05 03:46:25,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11287 to 5265. [2021-06-05 03:46:25,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5265 states, 5264 states have (on average 4.7251139817629175) internal successors, (24873), 5264 states have internal predecessors, (24873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:25,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5265 states to 5265 states and 24873 transitions. [2021-06-05 03:46:25,775 INFO L78 Accepts]: Start accepts. Automaton has 5265 states and 24873 transitions. Word has length 29 [2021-06-05 03:46:25,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:25,775 INFO L482 AbstractCegarLoop]: Abstraction has 5265 states and 24873 transitions. [2021-06-05 03:46:25,775 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:25,775 INFO L276 IsEmpty]: Start isEmpty. Operand 5265 states and 24873 transitions. [2021-06-05 03:46:25,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:25,784 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:25,784 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:25,784 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable897 [2021-06-05 03:46:25,784 INFO L430 AbstractCegarLoop]: === Iteration 899 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:25,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:25,784 INFO L82 PathProgramCache]: Analyzing trace with hash 1978539143, now seen corresponding path program 894 times [2021-06-05 03:46:25,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:25,784 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963835243] [2021-06-05 03:46:25,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:25,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:25,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:25,895 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:25,895 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963835243] [2021-06-05 03:46:25,895 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963835243] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:25,895 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:25,895 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:25,895 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880458546] [2021-06-05 03:46:25,895 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:25,895 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:25,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:25,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:25,896 INFO L87 Difference]: Start difference. First operand 5265 states and 24873 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:26,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:26,029 INFO L93 Difference]: Finished difference Result 11762 states and 52535 transitions. [2021-06-05 03:46:26,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:26,029 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:26,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:26,057 INFO L225 Difference]: With dead ends: 11762 [2021-06-05 03:46:26,057 INFO L226 Difference]: Without dead ends: 11137 [2021-06-05 03:46:26,057 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 135.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:26,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11137 states. [2021-06-05 03:46:26,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11137 to 5115. [2021-06-05 03:46:26,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5115 states, 5114 states have (on average 4.75322643723113) internal successors, (24308), 5114 states have internal predecessors, (24308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:26,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5115 states to 5115 states and 24308 transitions. [2021-06-05 03:46:26,288 INFO L78 Accepts]: Start accepts. Automaton has 5115 states and 24308 transitions. Word has length 29 [2021-06-05 03:46:26,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:26,288 INFO L482 AbstractCegarLoop]: Abstraction has 5115 states and 24308 transitions. [2021-06-05 03:46:26,288 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:26,288 INFO L276 IsEmpty]: Start isEmpty. Operand 5115 states and 24308 transitions. [2021-06-05 03:46:26,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:26,296 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:26,297 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:26,297 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable898 [2021-06-05 03:46:26,297 INFO L430 AbstractCegarLoop]: === Iteration 900 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:26,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:26,297 INFO L82 PathProgramCache]: Analyzing trace with hash 572850759, now seen corresponding path program 895 times [2021-06-05 03:46:26,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:26,297 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433783639] [2021-06-05 03:46:26,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:26,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:26,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:26,414 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:26,414 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433783639] [2021-06-05 03:46:26,414 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433783639] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:26,414 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:26,414 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:26,414 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980541715] [2021-06-05 03:46:26,414 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:26,414 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:26,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:26,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:26,415 INFO L87 Difference]: Start difference. First operand 5115 states and 24308 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:26,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:26,531 INFO L93 Difference]: Finished difference Result 11514 states and 51583 transitions. [2021-06-05 03:46:26,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:26,531 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:26,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:26,558 INFO L225 Difference]: With dead ends: 11514 [2021-06-05 03:46:26,558 INFO L226 Difference]: Without dead ends: 11099 [2021-06-05 03:46:26,558 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 141.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:26,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11099 states. [2021-06-05 03:46:26,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11099 to 5235. [2021-06-05 03:46:26,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5235 states, 5234 states have (on average 4.744363775315247) internal successors, (24832), 5234 states have internal predecessors, (24832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:26,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5235 states to 5235 states and 24832 transitions. [2021-06-05 03:46:26,790 INFO L78 Accepts]: Start accepts. Automaton has 5235 states and 24832 transitions. Word has length 29 [2021-06-05 03:46:26,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:26,790 INFO L482 AbstractCegarLoop]: Abstraction has 5235 states and 24832 transitions. [2021-06-05 03:46:26,790 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:26,790 INFO L276 IsEmpty]: Start isEmpty. Operand 5235 states and 24832 transitions. [2021-06-05 03:46:26,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:26,799 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:26,799 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:26,799 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable899 [2021-06-05 03:46:26,799 INFO L430 AbstractCegarLoop]: === Iteration 901 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:26,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:26,799 INFO L82 PathProgramCache]: Analyzing trace with hash -1967295929, now seen corresponding path program 896 times [2021-06-05 03:46:26,799 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:26,799 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667147781] [2021-06-05 03:46:26,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:26,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:26,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:26,921 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:26,921 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667147781] [2021-06-05 03:46:26,921 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667147781] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:26,921 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:26,921 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:26,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115258168] [2021-06-05 03:46:26,921 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:26,921 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:26,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:26,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:26,922 INFO L87 Difference]: Start difference. First operand 5235 states and 24832 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:27,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:27,026 INFO L93 Difference]: Finished difference Result 11641 states and 52062 transitions. [2021-06-05 03:46:27,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:27,026 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:27,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:27,053 INFO L225 Difference]: With dead ends: 11641 [2021-06-05 03:46:27,053 INFO L226 Difference]: Without dead ends: 11019 [2021-06-05 03:46:27,053 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 126.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:27,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11019 states. [2021-06-05 03:46:27,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11019 to 5155. [2021-06-05 03:46:27,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5155 states, 5154 states have (on average 4.748156771439659) internal successors, (24472), 5154 states have internal predecessors, (24472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:27,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 24472 transitions. [2021-06-05 03:46:27,290 INFO L78 Accepts]: Start accepts. Automaton has 5155 states and 24472 transitions. Word has length 29 [2021-06-05 03:46:27,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:27,290 INFO L482 AbstractCegarLoop]: Abstraction has 5155 states and 24472 transitions. [2021-06-05 03:46:27,290 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:27,290 INFO L276 IsEmpty]: Start isEmpty. Operand 5155 states and 24472 transitions. [2021-06-05 03:46:27,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:27,299 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:27,299 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:27,299 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable900 [2021-06-05 03:46:27,299 INFO L430 AbstractCegarLoop]: === Iteration 902 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:27,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:27,299 INFO L82 PathProgramCache]: Analyzing trace with hash 282607111, now seen corresponding path program 897 times [2021-06-05 03:46:27,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:27,300 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762734138] [2021-06-05 03:46:27,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:27,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:27,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:27,409 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:27,409 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762734138] [2021-06-05 03:46:27,409 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762734138] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:27,409 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:27,409 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:27,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938162906] [2021-06-05 03:46:27,410 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:27,410 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:27,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:27,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:27,410 INFO L87 Difference]: Start difference. First operand 5155 states and 24472 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:27,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:27,522 INFO L93 Difference]: Finished difference Result 11307 states and 50696 transitions. [2021-06-05 03:46:27,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:27,522 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:27,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:27,549 INFO L225 Difference]: With dead ends: 11307 [2021-06-05 03:46:27,549 INFO L226 Difference]: Without dead ends: 10892 [2021-06-05 03:46:27,549 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 134.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:27,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10892 states. [2021-06-05 03:46:27,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10892 to 5203. [2021-06-05 03:46:27,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5203 states, 5202 states have (on average 4.738177623990773) internal successors, (24648), 5202 states have internal predecessors, (24648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:27,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5203 states to 5203 states and 24648 transitions. [2021-06-05 03:46:27,778 INFO L78 Accepts]: Start accepts. Automaton has 5203 states and 24648 transitions. Word has length 29 [2021-06-05 03:46:27,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:27,778 INFO L482 AbstractCegarLoop]: Abstraction has 5203 states and 24648 transitions. [2021-06-05 03:46:27,778 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:27,778 INFO L276 IsEmpty]: Start isEmpty. Operand 5203 states and 24648 transitions. [2021-06-05 03:46:27,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:27,787 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:27,787 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:27,787 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable901 [2021-06-05 03:46:27,787 INFO L430 AbstractCegarLoop]: === Iteration 903 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:27,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:27,787 INFO L82 PathProgramCache]: Analyzing trace with hash -1463417687, now seen corresponding path program 898 times [2021-06-05 03:46:27,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:27,787 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637757172] [2021-06-05 03:46:27,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:27,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:27,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:27,914 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:27,914 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637757172] [2021-06-05 03:46:27,914 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637757172] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:27,914 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:27,914 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:27,914 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878123971] [2021-06-05 03:46:27,914 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:27,914 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:27,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:27,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:27,914 INFO L87 Difference]: Start difference. First operand 5203 states and 24648 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:28,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:28,028 INFO L93 Difference]: Finished difference Result 11035 states and 49687 transitions. [2021-06-05 03:46:28,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:28,028 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:28,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:28,054 INFO L225 Difference]: With dead ends: 11035 [2021-06-05 03:46:28,054 INFO L226 Difference]: Without dead ends: 10524 [2021-06-05 03:46:28,054 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 146.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:28,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10524 states. [2021-06-05 03:46:28,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10524 to 5155. [2021-06-05 03:46:28,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5155 states, 5154 states have (on average 4.743500194024059) internal successors, (24448), 5154 states have internal predecessors, (24448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:28,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 24448 transitions. [2021-06-05 03:46:28,277 INFO L78 Accepts]: Start accepts. Automaton has 5155 states and 24448 transitions. Word has length 29 [2021-06-05 03:46:28,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:28,277 INFO L482 AbstractCegarLoop]: Abstraction has 5155 states and 24448 transitions. [2021-06-05 03:46:28,277 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:28,277 INFO L276 IsEmpty]: Start isEmpty. Operand 5155 states and 24448 transitions. [2021-06-05 03:46:28,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:28,286 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:28,286 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:28,286 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable902 [2021-06-05 03:46:28,286 INFO L430 AbstractCegarLoop]: === Iteration 904 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:28,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:28,286 INFO L82 PathProgramCache]: Analyzing trace with hash -2068986711, now seen corresponding path program 899 times [2021-06-05 03:46:28,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:28,286 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213620508] [2021-06-05 03:46:28,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:28,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:28,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:28,407 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:28,407 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213620508] [2021-06-05 03:46:28,407 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213620508] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:28,407 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:28,407 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:28,407 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810903916] [2021-06-05 03:46:28,407 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:28,407 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:28,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:28,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:28,407 INFO L87 Difference]: Start difference. First operand 5155 states and 24448 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:28,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:28,511 INFO L93 Difference]: Finished difference Result 11490 states and 51467 transitions. [2021-06-05 03:46:28,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:28,512 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:28,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:28,538 INFO L225 Difference]: With dead ends: 11490 [2021-06-05 03:46:28,538 INFO L226 Difference]: Without dead ends: 10948 [2021-06-05 03:46:28,538 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:28,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10948 states. [2021-06-05 03:46:28,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10948 to 5259. [2021-06-05 03:46:28,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5259 states, 5258 states have (on average 4.7234689996196275) internal successors, (24836), 5258 states have internal predecessors, (24836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:28,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5259 states to 5259 states and 24836 transitions. [2021-06-05 03:46:28,769 INFO L78 Accepts]: Start accepts. Automaton has 5259 states and 24836 transitions. Word has length 29 [2021-06-05 03:46:28,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:28,769 INFO L482 AbstractCegarLoop]: Abstraction has 5259 states and 24836 transitions. [2021-06-05 03:46:28,769 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:28,769 INFO L276 IsEmpty]: Start isEmpty. Operand 5259 states and 24836 transitions. [2021-06-05 03:46:28,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:28,778 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:28,778 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:28,778 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable903 [2021-06-05 03:46:28,778 INFO L430 AbstractCegarLoop]: === Iteration 905 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:28,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:28,778 INFO L82 PathProgramCache]: Analyzing trace with hash -1507553913, now seen corresponding path program 900 times [2021-06-05 03:46:28,779 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:28,779 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373947936] [2021-06-05 03:46:28,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:28,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:28,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:28,898 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:28,898 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373947936] [2021-06-05 03:46:28,898 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373947936] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:28,898 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:28,898 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:28,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443890791] [2021-06-05 03:46:28,898 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:28,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:28,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:28,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:28,898 INFO L87 Difference]: Start difference. First operand 5259 states and 24836 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:29,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:29,022 INFO L93 Difference]: Finished difference Result 11091 states and 49875 transitions. [2021-06-05 03:46:29,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:29,023 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:29,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:29,049 INFO L225 Difference]: With dead ends: 11091 [2021-06-05 03:46:29,049 INFO L226 Difference]: Without dead ends: 10484 [2021-06-05 03:46:29,049 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 143.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:29,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10484 states. [2021-06-05 03:46:29,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10484 to 5115. [2021-06-05 03:46:29,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5115 states, 5114 states have (on average 4.7493156042237) internal successors, (24288), 5114 states have internal predecessors, (24288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:29,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5115 states to 5115 states and 24288 transitions. [2021-06-05 03:46:29,273 INFO L78 Accepts]: Start accepts. Automaton has 5115 states and 24288 transitions. Word has length 29 [2021-06-05 03:46:29,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:29,273 INFO L482 AbstractCegarLoop]: Abstraction has 5115 states and 24288 transitions. [2021-06-05 03:46:29,273 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:29,273 INFO L276 IsEmpty]: Start isEmpty. Operand 5115 states and 24288 transitions. [2021-06-05 03:46:29,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:29,281 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:29,281 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:29,281 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable904 [2021-06-05 03:46:29,282 INFO L430 AbstractCegarLoop]: === Iteration 906 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:29,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:29,282 INFO L82 PathProgramCache]: Analyzing trace with hash -1502303707, now seen corresponding path program 901 times [2021-06-05 03:46:29,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:29,282 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101434009] [2021-06-05 03:46:29,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:29,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:29,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:29,396 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:29,396 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101434009] [2021-06-05 03:46:29,396 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101434009] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:29,396 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:29,396 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:29,396 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925939486] [2021-06-05 03:46:29,396 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:29,396 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:29,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:29,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:29,396 INFO L87 Difference]: Start difference. First operand 5115 states and 24288 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:29,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:29,509 INFO L93 Difference]: Finished difference Result 11300 states and 50669 transitions. [2021-06-05 03:46:29,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:29,509 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:29,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:29,535 INFO L225 Difference]: With dead ends: 11300 [2021-06-05 03:46:29,536 INFO L226 Difference]: Without dead ends: 10885 [2021-06-05 03:46:29,536 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 138.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:29,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10885 states. [2021-06-05 03:46:29,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10885 to 5187. [2021-06-05 03:46:29,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5187 states, 5186 states have (on average 4.741226378711917) internal successors, (24588), 5186 states have internal predecessors, (24588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:29,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 5187 states and 24588 transitions. [2021-06-05 03:46:29,761 INFO L78 Accepts]: Start accepts. Automaton has 5187 states and 24588 transitions. Word has length 29 [2021-06-05 03:46:29,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:29,761 INFO L482 AbstractCegarLoop]: Abstraction has 5187 states and 24588 transitions. [2021-06-05 03:46:29,762 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:29,762 INFO L276 IsEmpty]: Start isEmpty. Operand 5187 states and 24588 transitions. [2021-06-05 03:46:29,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:29,770 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:29,770 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:29,770 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable905 [2021-06-05 03:46:29,770 INFO L430 AbstractCegarLoop]: === Iteration 907 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:29,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:29,770 INFO L82 PathProgramCache]: Analyzing trace with hash -2016984633, now seen corresponding path program 902 times [2021-06-05 03:46:29,770 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:29,770 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324314014] [2021-06-05 03:46:29,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:29,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:29,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:29,883 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:29,883 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324314014] [2021-06-05 03:46:29,883 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324314014] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:29,883 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:29,883 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:29,883 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200846895] [2021-06-05 03:46:29,883 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:29,884 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:29,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:29,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:29,884 INFO L87 Difference]: Start difference. First operand 5187 states and 24588 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:30,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:30,006 INFO L93 Difference]: Finished difference Result 11360 states and 50885 transitions. [2021-06-05 03:46:30,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:30,006 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:30,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:30,033 INFO L225 Difference]: With dead ends: 11360 [2021-06-05 03:46:30,033 INFO L226 Difference]: Without dead ends: 10837 [2021-06-05 03:46:30,033 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 138.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:30,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10837 states. [2021-06-05 03:46:30,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10837 to 5139. [2021-06-05 03:46:30,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5139 states, 5138 states have (on average 4.746594005449591) internal successors, (24388), 5138 states have internal predecessors, (24388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:30,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5139 states to 5139 states and 24388 transitions. [2021-06-05 03:46:30,258 INFO L78 Accepts]: Start accepts. Automaton has 5139 states and 24388 transitions. Word has length 29 [2021-06-05 03:46:30,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:30,258 INFO L482 AbstractCegarLoop]: Abstraction has 5139 states and 24388 transitions. [2021-06-05 03:46:30,258 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:30,258 INFO L276 IsEmpty]: Start isEmpty. Operand 5139 states and 24388 transitions. [2021-06-05 03:46:30,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:30,267 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:30,267 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:30,267 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable906 [2021-06-05 03:46:30,267 INFO L430 AbstractCegarLoop]: === Iteration 908 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:30,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:30,267 INFO L82 PathProgramCache]: Analyzing trace with hash 1618703879, now seen corresponding path program 903 times [2021-06-05 03:46:30,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:30,268 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790924945] [2021-06-05 03:46:30,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:30,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:30,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:30,370 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:30,370 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790924945] [2021-06-05 03:46:30,370 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790924945] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:30,370 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:30,370 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:30,370 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736122519] [2021-06-05 03:46:30,370 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:30,370 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:30,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:30,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:30,371 INFO L87 Difference]: Start difference. First operand 5139 states and 24388 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:30,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:30,488 INFO L93 Difference]: Finished difference Result 11192 states and 50205 transitions. [2021-06-05 03:46:30,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:30,489 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:30,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:30,515 INFO L225 Difference]: With dead ends: 11192 [2021-06-05 03:46:30,516 INFO L226 Difference]: Without dead ends: 10777 [2021-06-05 03:46:30,516 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 127.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:30,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10777 states. [2021-06-05 03:46:30,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10777 to 5187. [2021-06-05 03:46:30,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5187 states, 5186 states have (on average 4.736598534516005) internal successors, (24564), 5186 states have internal predecessors, (24564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:30,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 5187 states and 24564 transitions. [2021-06-05 03:46:30,740 INFO L78 Accepts]: Start accepts. Automaton has 5187 states and 24564 transitions. Word has length 29 [2021-06-05 03:46:30,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:30,741 INFO L482 AbstractCegarLoop]: Abstraction has 5187 states and 24564 transitions. [2021-06-05 03:46:30,741 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:30,741 INFO L276 IsEmpty]: Start isEmpty. Operand 5187 states and 24564 transitions. [2021-06-05 03:46:30,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:30,749 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:30,749 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:30,749 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable907 [2021-06-05 03:46:30,749 INFO L430 AbstractCegarLoop]: === Iteration 909 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:30,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:30,749 INFO L82 PathProgramCache]: Analyzing trace with hash 1416925383, now seen corresponding path program 904 times [2021-06-05 03:46:30,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:30,750 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119826310] [2021-06-05 03:46:30,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:30,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:30,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:30,851 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:30,851 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119826310] [2021-06-05 03:46:30,851 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119826310] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:30,851 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:30,851 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:30,851 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785951053] [2021-06-05 03:46:30,851 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:30,851 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:30,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:30,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:30,851 INFO L87 Difference]: Start difference. First operand 5187 states and 24564 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:30,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:30,964 INFO L93 Difference]: Finished difference Result 10920 states and 49196 transitions. [2021-06-05 03:46:30,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:30,964 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:30,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:30,989 INFO L225 Difference]: With dead ends: 10920 [2021-06-05 03:46:30,989 INFO L226 Difference]: Without dead ends: 10409 [2021-06-05 03:46:30,990 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 126.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:31,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10409 states. [2021-06-05 03:46:31,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10409 to 5139. [2021-06-05 03:46:31,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5139 states, 5138 states have (on average 4.741922927209031) internal successors, (24364), 5138 states have internal predecessors, (24364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:31,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5139 states to 5139 states and 24364 transitions. [2021-06-05 03:46:31,210 INFO L78 Accepts]: Start accepts. Automaton has 5139 states and 24364 transitions. Word has length 29 [2021-06-05 03:46:31,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:31,210 INFO L482 AbstractCegarLoop]: Abstraction has 5139 states and 24364 transitions. [2021-06-05 03:46:31,210 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:31,210 INFO L276 IsEmpty]: Start isEmpty. Operand 5139 states and 24364 transitions. [2021-06-05 03:46:31,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:31,219 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:31,219 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:31,219 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable908 [2021-06-05 03:46:31,219 INFO L430 AbstractCegarLoop]: === Iteration 910 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:31,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:31,219 INFO L82 PathProgramCache]: Analyzing trace with hash -614602775, now seen corresponding path program 905 times [2021-06-05 03:46:31,219 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:31,219 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162533256] [2021-06-05 03:46:31,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:31,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:31,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:31,320 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:31,320 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162533256] [2021-06-05 03:46:31,320 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162533256] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:31,320 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:31,320 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:31,320 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418099562] [2021-06-05 03:46:31,320 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:31,320 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:31,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:31,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:31,321 INFO L87 Difference]: Start difference. First operand 5139 states and 24364 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:31,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:31,449 INFO L93 Difference]: Finished difference Result 11276 states and 50569 transitions. [2021-06-05 03:46:31,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:31,449 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:31,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:31,475 INFO L225 Difference]: With dead ends: 11276 [2021-06-05 03:46:31,476 INFO L226 Difference]: Without dead ends: 10801 [2021-06-05 03:46:31,476 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 126.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:31,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10801 states. [2021-06-05 03:46:31,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10801 to 5211. [2021-06-05 03:46:31,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5211 states, 5210 states have (on average 4.72936660268714) internal successors, (24640), 5210 states have internal predecessors, (24640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:31,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5211 states to 5211 states and 24640 transitions. [2021-06-05 03:46:31,701 INFO L78 Accepts]: Start accepts. Automaton has 5211 states and 24640 transitions. Word has length 29 [2021-06-05 03:46:31,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:31,701 INFO L482 AbstractCegarLoop]: Abstraction has 5211 states and 24640 transitions. [2021-06-05 03:46:31,701 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:31,701 INFO L276 IsEmpty]: Start isEmpty. Operand 5211 states and 24640 transitions. [2021-06-05 03:46:31,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:31,710 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:31,710 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:31,710 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable909 [2021-06-05 03:46:31,710 INFO L430 AbstractCegarLoop]: === Iteration 911 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:31,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:31,710 INFO L82 PathProgramCache]: Analyzing trace with hash -2006747321, now seen corresponding path program 906 times [2021-06-05 03:46:31,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:31,710 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196539047] [2021-06-05 03:46:31,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:31,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:31,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:31,811 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:31,811 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196539047] [2021-06-05 03:46:31,812 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196539047] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:31,812 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:31,812 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:31,812 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215220226] [2021-06-05 03:46:31,812 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:31,812 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:31,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:31,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:31,812 INFO L87 Difference]: Start difference. First operand 5211 states and 24640 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:31,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:31,942 INFO L93 Difference]: Finished difference Result 10944 states and 49272 transitions. [2021-06-05 03:46:31,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:31,942 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:31,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:31,968 INFO L225 Difference]: With dead ends: 10944 [2021-06-05 03:46:31,968 INFO L226 Difference]: Without dead ends: 10385 [2021-06-05 03:46:31,968 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 126.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:32,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10385 states. [2021-06-05 03:46:32,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10385 to 5115. [2021-06-05 03:46:32,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5115 states, 5114 states have (on average 4.746969104419241) internal successors, (24276), 5114 states have internal predecessors, (24276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:32,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5115 states to 5115 states and 24276 transitions. [2021-06-05 03:46:32,190 INFO L78 Accepts]: Start accepts. Automaton has 5115 states and 24276 transitions. Word has length 29 [2021-06-05 03:46:32,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:32,190 INFO L482 AbstractCegarLoop]: Abstraction has 5115 states and 24276 transitions. [2021-06-05 03:46:32,190 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:32,190 INFO L276 IsEmpty]: Start isEmpty. Operand 5115 states and 24276 transitions. [2021-06-05 03:46:32,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:32,199 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:32,199 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:32,199 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable910 [2021-06-05 03:46:32,199 INFO L430 AbstractCegarLoop]: === Iteration 912 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:32,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:32,199 INFO L82 PathProgramCache]: Analyzing trace with hash -467478551, now seen corresponding path program 907 times [2021-06-05 03:46:32,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:32,199 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515293570] [2021-06-05 03:46:32,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:32,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:32,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:32,303 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:32,303 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515293570] [2021-06-05 03:46:32,303 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515293570] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:32,303 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:32,303 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:32,304 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546590660] [2021-06-05 03:46:32,304 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:32,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:32,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:32,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:32,304 INFO L87 Difference]: Start difference. First operand 5115 states and 24276 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:32,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:32,422 INFO L93 Difference]: Finished difference Result 11827 states and 52945 transitions. [2021-06-05 03:46:32,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:32,422 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:32,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:32,451 INFO L225 Difference]: With dead ends: 11827 [2021-06-05 03:46:32,451 INFO L226 Difference]: Without dead ends: 11285 [2021-06-05 03:46:32,452 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 113.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:32,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11285 states. [2021-06-05 03:46:32,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11285 to 5277. [2021-06-05 03:46:32,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5277 states, 5276 states have (on average 4.7295299469294925) internal successors, (24953), 5276 states have internal predecessors, (24953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:32,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5277 states to 5277 states and 24953 transitions. [2021-06-05 03:46:32,688 INFO L78 Accepts]: Start accepts. Automaton has 5277 states and 24953 transitions. Word has length 29 [2021-06-05 03:46:32,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:32,688 INFO L482 AbstractCegarLoop]: Abstraction has 5277 states and 24953 transitions. [2021-06-05 03:46:32,688 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:32,688 INFO L276 IsEmpty]: Start isEmpty. Operand 5277 states and 24953 transitions. [2021-06-05 03:46:32,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:32,697 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:32,697 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:32,697 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable911 [2021-06-05 03:46:32,697 INFO L430 AbstractCegarLoop]: === Iteration 913 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:32,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:32,697 INFO L82 PathProgramCache]: Analyzing trace with hash -1208430649, now seen corresponding path program 908 times [2021-06-05 03:46:32,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:32,697 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933989439] [2021-06-05 03:46:32,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:32,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:32,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:32,800 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:32,800 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933989439] [2021-06-05 03:46:32,800 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933989439] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:32,800 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:32,800 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:32,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655966353] [2021-06-05 03:46:32,800 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:32,801 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:32,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:32,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:32,801 INFO L87 Difference]: Start difference. First operand 5277 states and 24953 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:32,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:32,913 INFO L93 Difference]: Finished difference Result 11760 states and 52572 transitions. [2021-06-05 03:46:32,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:32,913 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:32,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:32,941 INFO L225 Difference]: With dead ends: 11760 [2021-06-05 03:46:32,942 INFO L226 Difference]: Without dead ends: 11175 [2021-06-05 03:46:32,942 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:33,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11175 states. [2021-06-05 03:46:33,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11175 to 5167. [2021-06-05 03:46:33,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5167 states, 5166 states have (on average 4.741773132017035) internal successors, (24496), 5166 states have internal predecessors, (24496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:33,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 24496 transitions. [2021-06-05 03:46:33,177 INFO L78 Accepts]: Start accepts. Automaton has 5167 states and 24496 transitions. Word has length 29 [2021-06-05 03:46:33,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:33,177 INFO L482 AbstractCegarLoop]: Abstraction has 5167 states and 24496 transitions. [2021-06-05 03:46:33,177 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:33,177 INFO L276 IsEmpty]: Start isEmpty. Operand 5167 states and 24496 transitions. [2021-06-05 03:46:33,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:33,186 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:33,186 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:33,186 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable912 [2021-06-05 03:46:33,186 INFO L430 AbstractCegarLoop]: === Iteration 914 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:33,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:33,186 INFO L82 PathProgramCache]: Analyzing trace with hash 1711409095, now seen corresponding path program 909 times [2021-06-05 03:46:33,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:33,187 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127192832] [2021-06-05 03:46:33,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:33,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:33,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:33,301 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:33,301 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127192832] [2021-06-05 03:46:33,301 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127192832] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:33,301 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:33,301 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:33,301 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818547245] [2021-06-05 03:46:33,301 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:33,301 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:33,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:33,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:33,301 INFO L87 Difference]: Start difference. First operand 5167 states and 24496 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:33,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:33,408 INFO L93 Difference]: Finished difference Result 11586 states and 51903 transitions. [2021-06-05 03:46:33,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:33,408 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:33,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:33,439 INFO L225 Difference]: With dead ends: 11586 [2021-06-05 03:46:33,439 INFO L226 Difference]: Without dead ends: 11044 [2021-06-05 03:46:33,439 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 122.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:33,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11044 states. [2021-06-05 03:46:33,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11044 to 5271. [2021-06-05 03:46:33,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5271 states, 5270 states have (on average 4.721821631878558) internal successors, (24884), 5270 states have internal predecessors, (24884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:33,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5271 states to 5271 states and 24884 transitions. [2021-06-05 03:46:33,690 INFO L78 Accepts]: Start accepts. Automaton has 5271 states and 24884 transitions. Word has length 29 [2021-06-05 03:46:33,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:33,690 INFO L482 AbstractCegarLoop]: Abstraction has 5271 states and 24884 transitions. [2021-06-05 03:46:33,690 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:33,690 INFO L276 IsEmpty]: Start isEmpty. Operand 5271 states and 24884 transitions. [2021-06-05 03:46:33,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:33,699 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:33,699 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:33,699 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable913 [2021-06-05 03:46:33,699 INFO L430 AbstractCegarLoop]: === Iteration 915 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:33,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:33,699 INFO L82 PathProgramCache]: Analyzing trace with hash -725385017, now seen corresponding path program 910 times [2021-06-05 03:46:33,699 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:33,699 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910259790] [2021-06-05 03:46:33,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:33,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:33,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:33,812 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:33,812 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910259790] [2021-06-05 03:46:33,812 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910259790] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:33,812 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:33,812 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:33,812 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958295136] [2021-06-05 03:46:33,813 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:33,813 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:33,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:33,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:33,813 INFO L87 Difference]: Start difference. First operand 5271 states and 24884 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:33,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:33,927 INFO L93 Difference]: Finished difference Result 11187 states and 50311 transitions. [2021-06-05 03:46:33,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:33,928 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:33,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:33,954 INFO L225 Difference]: With dead ends: 11187 [2021-06-05 03:46:33,954 INFO L226 Difference]: Without dead ends: 10620 [2021-06-05 03:46:33,954 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 139.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:34,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10620 states. [2021-06-05 03:46:34,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10620 to 5167. [2021-06-05 03:46:34,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5167 states, 5166 states have (on average 4.7317073170731705) internal successors, (24444), 5166 states have internal predecessors, (24444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:34,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 24444 transitions. [2021-06-05 03:46:34,208 INFO L78 Accepts]: Start accepts. Automaton has 5167 states and 24444 transitions. Word has length 29 [2021-06-05 03:46:34,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:34,208 INFO L482 AbstractCegarLoop]: Abstraction has 5167 states and 24444 transitions. [2021-06-05 03:46:34,208 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:34,208 INFO L276 IsEmpty]: Start isEmpty. Operand 5167 states and 24444 transitions. [2021-06-05 03:46:34,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:34,217 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:34,217 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:34,217 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable914 [2021-06-05 03:46:34,217 INFO L430 AbstractCegarLoop]: === Iteration 916 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:34,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:34,217 INFO L82 PathProgramCache]: Analyzing trace with hash 1457576229, now seen corresponding path program 911 times [2021-06-05 03:46:34,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:34,217 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055816013] [2021-06-05 03:46:34,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:34,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:34,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:34,320 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:34,320 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055816013] [2021-06-05 03:46:34,320 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055816013] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:34,320 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:34,320 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:34,320 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275801313] [2021-06-05 03:46:34,320 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:34,320 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:34,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:34,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:34,320 INFO L87 Difference]: Start difference. First operand 5167 states and 24444 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:34,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:34,437 INFO L93 Difference]: Finished difference Result 11487 states and 51444 transitions. [2021-06-05 03:46:34,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:34,437 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:34,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:34,465 INFO L225 Difference]: With dead ends: 11487 [2021-06-05 03:46:34,465 INFO L226 Difference]: Without dead ends: 11012 [2021-06-05 03:46:34,465 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:34,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11012 states. [2021-06-05 03:46:34,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11012 to 5239. [2021-06-05 03:46:34,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5239 states, 5238 states have (on average 4.719358533791524) internal successors, (24720), 5238 states have internal predecessors, (24720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:34,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5239 states to 5239 states and 24720 transitions. [2021-06-05 03:46:34,697 INFO L78 Accepts]: Start accepts. Automaton has 5239 states and 24720 transitions. Word has length 29 [2021-06-05 03:46:34,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:34,697 INFO L482 AbstractCegarLoop]: Abstraction has 5239 states and 24720 transitions. [2021-06-05 03:46:34,698 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:34,698 INFO L276 IsEmpty]: Start isEmpty. Operand 5239 states and 24720 transitions. [2021-06-05 03:46:34,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:34,757 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:34,757 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:34,757 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable915 [2021-06-05 03:46:34,757 INFO L430 AbstractCegarLoop]: === Iteration 917 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:34,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:34,757 INFO L82 PathProgramCache]: Analyzing trace with hash 1250768263, now seen corresponding path program 912 times [2021-06-05 03:46:34,757 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:34,757 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847091980] [2021-06-05 03:46:34,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:34,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:34,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:34,865 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:34,865 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847091980] [2021-06-05 03:46:34,865 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847091980] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:34,865 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:34,865 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:34,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119635247] [2021-06-05 03:46:34,866 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:34,866 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:34,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:34,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:34,866 INFO L87 Difference]: Start difference. First operand 5239 states and 24720 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:34,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:34,983 INFO L93 Difference]: Finished difference Result 11155 states and 50147 transitions. [2021-06-05 03:46:34,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:34,983 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:34,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:35,011 INFO L225 Difference]: With dead ends: 11155 [2021-06-05 03:46:35,011 INFO L226 Difference]: Without dead ends: 10548 [2021-06-05 03:46:35,011 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:35,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10548 states. [2021-06-05 03:46:35,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10548 to 5095. [2021-06-05 03:46:35,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5095 states, 5094 states have (on average 4.751864939144091) internal successors, (24206), 5094 states have internal predecessors, (24206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:35,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5095 states to 5095 states and 24206 transitions. [2021-06-05 03:46:35,241 INFO L78 Accepts]: Start accepts. Automaton has 5095 states and 24206 transitions. Word has length 29 [2021-06-05 03:46:35,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:35,241 INFO L482 AbstractCegarLoop]: Abstraction has 5095 states and 24206 transitions. [2021-06-05 03:46:35,241 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:35,241 INFO L276 IsEmpty]: Start isEmpty. Operand 5095 states and 24206 transitions. [2021-06-05 03:46:35,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:35,250 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:35,250 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:35,250 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable916 [2021-06-05 03:46:35,250 INFO L430 AbstractCegarLoop]: === Iteration 918 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:35,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:35,250 INFO L82 PathProgramCache]: Analyzing trace with hash 810606885, now seen corresponding path program 913 times [2021-06-05 03:46:35,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:35,250 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812950197] [2021-06-05 03:46:35,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:35,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:35,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:35,373 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:35,373 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812950197] [2021-06-05 03:46:35,373 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812950197] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:35,373 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:35,373 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:35,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268255517] [2021-06-05 03:46:35,373 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:35,373 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:35,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:35,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:35,373 INFO L87 Difference]: Start difference. First operand 5095 states and 24206 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:35,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:35,496 INFO L93 Difference]: Finished difference Result 11169 states and 50102 transitions. [2021-06-05 03:46:35,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:35,496 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:35,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:35,524 INFO L225 Difference]: With dead ends: 11169 [2021-06-05 03:46:35,524 INFO L226 Difference]: Without dead ends: 10754 [2021-06-05 03:46:35,524 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 147.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:35,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10754 states. [2021-06-05 03:46:35,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10754 to 5179. [2021-06-05 03:46:35,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.745847817690228) internal successors, (24574), 5178 states have internal predecessors, (24574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:35,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24574 transitions. [2021-06-05 03:46:35,754 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24574 transitions. Word has length 29 [2021-06-05 03:46:35,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:35,755 INFO L482 AbstractCegarLoop]: Abstraction has 5179 states and 24574 transitions. [2021-06-05 03:46:35,755 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:35,755 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24574 transitions. [2021-06-05 03:46:35,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:35,763 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:35,763 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:35,763 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable917 [2021-06-05 03:46:35,763 INFO L430 AbstractCegarLoop]: === Iteration 919 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:35,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:35,764 INFO L82 PathProgramCache]: Analyzing trace with hash 1527269831, now seen corresponding path program 914 times [2021-06-05 03:46:35,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:35,764 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040744706] [2021-06-05 03:46:35,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:35,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:35,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:35,887 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:35,887 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040744706] [2021-06-05 03:46:35,887 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040744706] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:35,887 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:35,887 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:35,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72892358] [2021-06-05 03:46:35,887 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:35,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:35,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:35,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:35,887 INFO L87 Difference]: Start difference. First operand 5179 states and 24574 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:36,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:36,001 INFO L93 Difference]: Finished difference Result 11231 states and 50323 transitions. [2021-06-05 03:46:36,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:36,002 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:36,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:36,029 INFO L225 Difference]: With dead ends: 11231 [2021-06-05 03:46:36,029 INFO L226 Difference]: Without dead ends: 10706 [2021-06-05 03:46:36,029 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 148.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:36,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10706 states. [2021-06-05 03:46:36,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10706 to 5131. [2021-06-05 03:46:36,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.751267056530215) internal successors, (24374), 5130 states have internal predecessors, (24374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:36,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24374 transitions. [2021-06-05 03:46:36,262 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24374 transitions. Word has length 29 [2021-06-05 03:46:36,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:36,262 INFO L482 AbstractCegarLoop]: Abstraction has 5131 states and 24374 transitions. [2021-06-05 03:46:36,262 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:36,262 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24374 transitions. [2021-06-05 03:46:36,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:36,271 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:36,271 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:36,271 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable918 [2021-06-05 03:46:36,271 INFO L430 AbstractCegarLoop]: === Iteration 920 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:36,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:36,271 INFO L82 PathProgramCache]: Analyzing trace with hash -363352825, now seen corresponding path program 915 times [2021-06-05 03:46:36,271 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:36,271 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754015380] [2021-06-05 03:46:36,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:36,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:36,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:36,398 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:36,398 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754015380] [2021-06-05 03:46:36,398 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754015380] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:36,398 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:36,398 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:36,398 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982277634] [2021-06-05 03:46:36,398 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:36,398 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:36,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:36,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:36,398 INFO L87 Difference]: Start difference. First operand 5131 states and 24374 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:36,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:36,517 INFO L93 Difference]: Finished difference Result 11167 states and 50073 transitions. [2021-06-05 03:46:36,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:36,517 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:36,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:36,546 INFO L225 Difference]: With dead ends: 11167 [2021-06-05 03:46:36,546 INFO L226 Difference]: Without dead ends: 10752 [2021-06-05 03:46:36,546 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 152.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:36,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10752 states. [2021-06-05 03:46:36,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10752 to 5179. [2021-06-05 03:46:36,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.741212823483971) internal successors, (24550), 5178 states have internal predecessors, (24550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:36,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24550 transitions. [2021-06-05 03:46:36,785 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24550 transitions. Word has length 29 [2021-06-05 03:46:36,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:36,785 INFO L482 AbstractCegarLoop]: Abstraction has 5179 states and 24550 transitions. [2021-06-05 03:46:36,785 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:36,786 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24550 transitions. [2021-06-05 03:46:36,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:36,795 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:36,795 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:36,795 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable919 [2021-06-05 03:46:36,795 INFO L430 AbstractCegarLoop]: === Iteration 921 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:36,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:36,795 INFO L82 PathProgramCache]: Analyzing trace with hash 666212551, now seen corresponding path program 916 times [2021-06-05 03:46:36,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:36,795 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193436654] [2021-06-05 03:46:36,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:36,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:36,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:36,924 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:36,924 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193436654] [2021-06-05 03:46:36,924 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193436654] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:36,924 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:36,924 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:36,924 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073873728] [2021-06-05 03:46:36,924 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:36,924 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:36,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:36,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:36,925 INFO L87 Difference]: Start difference. First operand 5179 states and 24550 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:37,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:37,043 INFO L93 Difference]: Finished difference Result 11227 states and 50289 transitions. [2021-06-05 03:46:37,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:37,043 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:37,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:37,071 INFO L225 Difference]: With dead ends: 11227 [2021-06-05 03:46:37,071 INFO L226 Difference]: Without dead ends: 10704 [2021-06-05 03:46:37,071 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 154.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:37,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10704 states. [2021-06-05 03:46:37,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10704 to 5131. [2021-06-05 03:46:37,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.746588693957115) internal successors, (24350), 5130 states have internal predecessors, (24350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:37,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24350 transitions. [2021-06-05 03:46:37,303 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24350 transitions. Word has length 29 [2021-06-05 03:46:37,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:37,303 INFO L482 AbstractCegarLoop]: Abstraction has 5131 states and 24350 transitions. [2021-06-05 03:46:37,303 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:37,303 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24350 transitions. [2021-06-05 03:46:37,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:37,311 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:37,312 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:37,312 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable920 [2021-06-05 03:46:37,312 INFO L430 AbstractCegarLoop]: === Iteration 922 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:37,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:37,312 INFO L82 PathProgramCache]: Analyzing trace with hash 840138985, now seen corresponding path program 917 times [2021-06-05 03:46:37,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:37,312 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708719980] [2021-06-05 03:46:37,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:37,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:37,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:37,425 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:37,425 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708719980] [2021-06-05 03:46:37,425 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708719980] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:37,425 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:37,425 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:37,425 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366759548] [2021-06-05 03:46:37,425 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:37,425 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:37,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:37,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:37,425 INFO L87 Difference]: Start difference. First operand 5131 states and 24350 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:37,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:37,558 INFO L93 Difference]: Finished difference Result 11321 states and 50734 transitions. [2021-06-05 03:46:37,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:37,558 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:37,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:37,586 INFO L225 Difference]: With dead ends: 11321 [2021-06-05 03:46:37,587 INFO L226 Difference]: Without dead ends: 10844 [2021-06-05 03:46:37,587 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 137.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:37,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10844 states. [2021-06-05 03:46:37,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10844 to 5209. [2021-06-05 03:46:37,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5209 states, 5208 states have (on average 4.731758832565284) internal successors, (24643), 5208 states have internal predecessors, (24643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:37,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5209 states to 5209 states and 24643 transitions. [2021-06-05 03:46:37,821 INFO L78 Accepts]: Start accepts. Automaton has 5209 states and 24643 transitions. Word has length 29 [2021-06-05 03:46:37,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:37,821 INFO L482 AbstractCegarLoop]: Abstraction has 5209 states and 24643 transitions. [2021-06-05 03:46:37,821 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:37,821 INFO L276 IsEmpty]: Start isEmpty. Operand 5209 states and 24643 transitions. [2021-06-05 03:46:37,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:37,830 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:37,830 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:37,830 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable921 [2021-06-05 03:46:37,831 INFO L430 AbstractCegarLoop]: === Iteration 923 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:37,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:37,831 INFO L82 PathProgramCache]: Analyzing trace with hash -552005561, now seen corresponding path program 918 times [2021-06-05 03:46:37,831 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:37,831 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466618909] [2021-06-05 03:46:37,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:37,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:37,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:37,959 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:37,959 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466618909] [2021-06-05 03:46:37,959 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466618909] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:37,959 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:37,959 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:37,960 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106444315] [2021-06-05 03:46:37,960 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:37,960 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:37,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:37,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:37,960 INFO L87 Difference]: Start difference. First operand 5209 states and 24643 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:38,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:38,100 INFO L93 Difference]: Finished difference Result 11319 states and 50651 transitions. [2021-06-05 03:46:38,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:38,100 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:38,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:38,128 INFO L225 Difference]: With dead ends: 11319 [2021-06-05 03:46:38,128 INFO L226 Difference]: Without dead ends: 10742 [2021-06-05 03:46:38,128 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 150.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:38,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10742 states. [2021-06-05 03:46:38,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10742 to 5107. [2021-06-05 03:46:38,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5107 states, 5106 states have (on average 4.751664708186447) internal successors, (24262), 5106 states have internal predecessors, (24262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:38,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5107 states to 5107 states and 24262 transitions. [2021-06-05 03:46:38,364 INFO L78 Accepts]: Start accepts. Automaton has 5107 states and 24262 transitions. Word has length 29 [2021-06-05 03:46:38,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:38,364 INFO L482 AbstractCegarLoop]: Abstraction has 5107 states and 24262 transitions. [2021-06-05 03:46:38,364 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:38,364 INFO L276 IsEmpty]: Start isEmpty. Operand 5107 states and 24262 transitions. [2021-06-05 03:46:38,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:38,373 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:38,373 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:38,373 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable922 [2021-06-05 03:46:38,373 INFO L430 AbstractCegarLoop]: === Iteration 924 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:38,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:38,373 INFO L82 PathProgramCache]: Analyzing trace with hash -2083242873, now seen corresponding path program 919 times [2021-06-05 03:46:38,373 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:38,373 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719000919] [2021-06-05 03:46:38,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:38,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:38,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:38,494 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:38,494 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719000919] [2021-06-05 03:46:38,494 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719000919] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:38,494 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:38,494 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:38,494 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521667055] [2021-06-05 03:46:38,494 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:38,494 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:38,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:38,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:38,495 INFO L87 Difference]: Start difference. First operand 5107 states and 24262 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:38,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:38,617 INFO L93 Difference]: Finished difference Result 11103 states and 49803 transitions. [2021-06-05 03:46:38,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:38,617 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:38,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:38,643 INFO L225 Difference]: With dead ends: 11103 [2021-06-05 03:46:38,644 INFO L226 Difference]: Without dead ends: 10688 [2021-06-05 03:46:38,644 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 145.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:38,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10688 states. [2021-06-05 03:46:38,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10688 to 5179. [2021-06-05 03:46:38,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.743530320587099) internal successors, (24562), 5178 states have internal predecessors, (24562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:38,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24562 transitions. [2021-06-05 03:46:38,871 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24562 transitions. Word has length 29 [2021-06-05 03:46:38,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:38,871 INFO L482 AbstractCegarLoop]: Abstraction has 5179 states and 24562 transitions. [2021-06-05 03:46:38,871 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:38,871 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24562 transitions. [2021-06-05 03:46:38,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:38,880 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:38,880 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:38,880 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable923 [2021-06-05 03:46:38,880 INFO L430 AbstractCegarLoop]: === Iteration 925 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:38,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:38,880 INFO L82 PathProgramCache]: Analyzing trace with hash -1366579927, now seen corresponding path program 920 times [2021-06-05 03:46:38,880 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:38,880 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540520486] [2021-06-05 03:46:38,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:38,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:39,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:39,001 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:39,001 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540520486] [2021-06-05 03:46:39,001 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540520486] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:39,001 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:39,001 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:39,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227481090] [2021-06-05 03:46:39,002 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:39,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:39,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:39,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:39,002 INFO L87 Difference]: Start difference. First operand 5179 states and 24562 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:39,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:39,116 INFO L93 Difference]: Finished difference Result 11165 states and 50024 transitions. [2021-06-05 03:46:39,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:39,116 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:39,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:39,144 INFO L225 Difference]: With dead ends: 11165 [2021-06-05 03:46:39,144 INFO L226 Difference]: Without dead ends: 10640 [2021-06-05 03:46:39,144 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 146.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:39,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10640 states. [2021-06-05 03:46:39,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10640 to 5131. [2021-06-05 03:46:39,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.748927875243664) internal successors, (24362), 5130 states have internal predecessors, (24362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:39,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24362 transitions. [2021-06-05 03:46:39,372 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24362 transitions. Word has length 29 [2021-06-05 03:46:39,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:39,372 INFO L482 AbstractCegarLoop]: Abstraction has 5131 states and 24362 transitions. [2021-06-05 03:46:39,372 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:39,372 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24362 transitions. [2021-06-05 03:46:39,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:39,380 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:39,381 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:39,381 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable924 [2021-06-05 03:46:39,381 INFO L430 AbstractCegarLoop]: === Iteration 926 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:39,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:39,381 INFO L82 PathProgramCache]: Analyzing trace with hash 1908628487, now seen corresponding path program 921 times [2021-06-05 03:46:39,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:39,381 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102756183] [2021-06-05 03:46:39,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:39,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:39,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:39,492 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:39,492 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102756183] [2021-06-05 03:46:39,492 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102756183] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:39,492 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:39,492 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:39,492 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078416376] [2021-06-05 03:46:39,492 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:39,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:39,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:39,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:39,492 INFO L87 Difference]: Start difference. First operand 5131 states and 24362 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:39,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:39,608 INFO L93 Difference]: Finished difference Result 10993 states and 49334 transitions. [2021-06-05 03:46:39,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:39,608 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:39,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:39,635 INFO L225 Difference]: With dead ends: 10993 [2021-06-05 03:46:39,635 INFO L226 Difference]: Without dead ends: 10578 [2021-06-05 03:46:39,635 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 135.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:39,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10578 states. [2021-06-05 03:46:39,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10578 to 5179. [2021-06-05 03:46:39,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.738895326380842) internal successors, (24538), 5178 states have internal predecessors, (24538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:39,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24538 transitions. [2021-06-05 03:46:39,861 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24538 transitions. Word has length 29 [2021-06-05 03:46:39,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:39,861 INFO L482 AbstractCegarLoop]: Abstraction has 5179 states and 24538 transitions. [2021-06-05 03:46:39,861 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:39,861 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24538 transitions. [2021-06-05 03:46:39,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:39,870 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:39,870 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:39,870 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable925 [2021-06-05 03:46:39,870 INFO L430 AbstractCegarLoop]: === Iteration 927 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:39,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:39,870 INFO L82 PathProgramCache]: Analyzing trace with hash -831715385, now seen corresponding path program 922 times [2021-06-05 03:46:39,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:39,870 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918813663] [2021-06-05 03:46:39,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:39,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:39,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:39,981 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:39,981 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918813663] [2021-06-05 03:46:39,981 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918813663] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:39,981 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:39,981 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:39,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069039204] [2021-06-05 03:46:39,981 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:39,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:39,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:39,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:39,982 INFO L87 Difference]: Start difference. First operand 5179 states and 24538 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:40,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:40,093 INFO L93 Difference]: Finished difference Result 10721 states and 48325 transitions. [2021-06-05 03:46:40,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:40,094 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:40,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:40,119 INFO L225 Difference]: With dead ends: 10721 [2021-06-05 03:46:40,120 INFO L226 Difference]: Without dead ends: 10210 [2021-06-05 03:46:40,120 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 135.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:40,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10210 states. [2021-06-05 03:46:40,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10210 to 5131. [2021-06-05 03:46:40,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.7442495126705655) internal successors, (24338), 5130 states have internal predecessors, (24338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:40,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24338 transitions. [2021-06-05 03:46:40,342 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24338 transitions. Word has length 29 [2021-06-05 03:46:40,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:40,342 INFO L482 AbstractCegarLoop]: Abstraction has 5131 states and 24338 transitions. [2021-06-05 03:46:40,342 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:40,342 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24338 transitions. [2021-06-05 03:46:40,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:40,351 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:40,351 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:40,351 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable926 [2021-06-05 03:46:40,351 INFO L430 AbstractCegarLoop]: === Iteration 928 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:40,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:40,351 INFO L82 PathProgramCache]: Analyzing trace with hash -2002186263, now seen corresponding path program 923 times [2021-06-05 03:46:40,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:40,351 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20061038] [2021-06-05 03:46:40,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:40,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:40,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:40,492 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:40,492 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20061038] [2021-06-05 03:46:40,493 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20061038] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:40,493 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:40,493 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:40,493 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114407830] [2021-06-05 03:46:40,493 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:40,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:40,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:40,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:40,493 INFO L87 Difference]: Start difference. First operand 5131 states and 24338 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:40,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:40,617 INFO L93 Difference]: Finished difference Result 11079 states and 49703 transitions. [2021-06-05 03:46:40,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:40,618 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:40,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:40,644 INFO L225 Difference]: With dead ends: 11079 [2021-06-05 03:46:40,644 INFO L226 Difference]: Without dead ends: 10602 [2021-06-05 03:46:40,644 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 161.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:40,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10602 states. [2021-06-05 03:46:40,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10602 to 5203. [2021-06-05 03:46:40,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5203 states, 5202 states have (on average 4.731641676278355) internal successors, (24614), 5202 states have internal predecessors, (24614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:40,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5203 states to 5203 states and 24614 transitions. [2021-06-05 03:46:40,869 INFO L78 Accepts]: Start accepts. Automaton has 5203 states and 24614 transitions. Word has length 29 [2021-06-05 03:46:40,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:40,869 INFO L482 AbstractCegarLoop]: Abstraction has 5203 states and 24614 transitions. [2021-06-05 03:46:40,869 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:40,869 INFO L276 IsEmpty]: Start isEmpty. Operand 5203 states and 24614 transitions. [2021-06-05 03:46:40,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:40,878 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:40,878 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:40,878 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable927 [2021-06-05 03:46:40,878 INFO L430 AbstractCegarLoop]: === Iteration 929 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:40,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:40,879 INFO L82 PathProgramCache]: Analyzing trace with hash -2091945913, now seen corresponding path program 924 times [2021-06-05 03:46:40,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:40,879 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030022614] [2021-06-05 03:46:40,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:40,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:41,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:41,001 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:41,001 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030022614] [2021-06-05 03:46:41,001 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030022614] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:41,001 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:41,001 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:41,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964004165] [2021-06-05 03:46:41,001 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:41,001 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:41,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:41,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:41,001 INFO L87 Difference]: Start difference. First operand 5203 states and 24614 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:41,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:41,113 INFO L93 Difference]: Finished difference Result 10745 states and 48401 transitions. [2021-06-05 03:46:41,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:41,113 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:41,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:41,138 INFO L225 Difference]: With dead ends: 10745 [2021-06-05 03:46:41,139 INFO L226 Difference]: Without dead ends: 10186 [2021-06-05 03:46:41,139 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 146.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:41,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10186 states. [2021-06-05 03:46:41,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10186 to 5107. [2021-06-05 03:46:41,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5107 states, 5106 states have (on average 4.749314531923227) internal successors, (24250), 5106 states have internal predecessors, (24250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:41,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5107 states to 5107 states and 24250 transitions. [2021-06-05 03:46:41,364 INFO L78 Accepts]: Start accepts. Automaton has 5107 states and 24250 transitions. Word has length 29 [2021-06-05 03:46:41,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:41,364 INFO L482 AbstractCegarLoop]: Abstraction has 5107 states and 24250 transitions. [2021-06-05 03:46:41,364 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:41,364 INFO L276 IsEmpty]: Start isEmpty. Operand 5107 states and 24250 transitions. [2021-06-05 03:46:41,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:41,372 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:41,372 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:41,372 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable928 [2021-06-05 03:46:41,373 INFO L430 AbstractCegarLoop]: === Iteration 930 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:41,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:41,373 INFO L82 PathProgramCache]: Analyzing trace with hash 420796265, now seen corresponding path program 925 times [2021-06-05 03:46:41,373 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:41,373 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814113593] [2021-06-05 03:46:41,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:41,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:41,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:41,488 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:41,488 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814113593] [2021-06-05 03:46:41,488 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814113593] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:41,488 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:41,488 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:41,488 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992615297] [2021-06-05 03:46:41,488 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:41,488 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:41,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:41,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:41,489 INFO L87 Difference]: Start difference. First operand 5107 states and 24250 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:41,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:41,604 INFO L93 Difference]: Finished difference Result 11099 states and 49781 transitions. [2021-06-05 03:46:41,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:41,605 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:41,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:41,631 INFO L225 Difference]: With dead ends: 11099 [2021-06-05 03:46:41,631 INFO L226 Difference]: Without dead ends: 10684 [2021-06-05 03:46:41,631 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 140.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:41,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10684 states. [2021-06-05 03:46:41,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10684 to 5179. [2021-06-05 03:46:41,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.741212823483971) internal successors, (24550), 5178 states have internal predecessors, (24550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:41,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24550 transitions. [2021-06-05 03:46:41,856 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24550 transitions. Word has length 29 [2021-06-05 03:46:41,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:41,856 INFO L482 AbstractCegarLoop]: Abstraction has 5179 states and 24550 transitions. [2021-06-05 03:46:41,856 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:41,856 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24550 transitions. [2021-06-05 03:46:41,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:41,864 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:41,864 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:41,864 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable929 [2021-06-05 03:46:41,864 INFO L430 AbstractCegarLoop]: === Iteration 931 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:41,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:41,865 INFO L82 PathProgramCache]: Analyzing trace with hash 1450361641, now seen corresponding path program 926 times [2021-06-05 03:46:41,865 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:41,865 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929663510] [2021-06-05 03:46:41,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:41,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:41,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:41,981 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:41,981 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929663510] [2021-06-05 03:46:41,981 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929663510] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:41,981 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:41,981 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:41,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997029501] [2021-06-05 03:46:41,981 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:41,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:41,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:41,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:41,981 INFO L87 Difference]: Start difference. First operand 5179 states and 24550 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:42,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:42,099 INFO L93 Difference]: Finished difference Result 11159 states and 49997 transitions. [2021-06-05 03:46:42,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:42,099 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:42,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:42,125 INFO L225 Difference]: With dead ends: 11159 [2021-06-05 03:46:42,125 INFO L226 Difference]: Without dead ends: 10636 [2021-06-05 03:46:42,125 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 141.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:42,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10636 states. [2021-06-05 03:46:42,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10636 to 5131. [2021-06-05 03:46:42,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.746588693957115) internal successors, (24350), 5130 states have internal predecessors, (24350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:42,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24350 transitions. [2021-06-05 03:46:42,350 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24350 transitions. Word has length 29 [2021-06-05 03:46:42,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:42,350 INFO L482 AbstractCegarLoop]: Abstraction has 5131 states and 24350 transitions. [2021-06-05 03:46:42,350 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:42,350 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24350 transitions. [2021-06-05 03:46:42,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:42,358 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:42,359 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:42,359 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable930 [2021-06-05 03:46:42,359 INFO L430 AbstractCegarLoop]: === Iteration 932 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:42,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:42,359 INFO L82 PathProgramCache]: Analyzing trace with hash -1612216377, now seen corresponding path program 927 times [2021-06-05 03:46:42,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:42,359 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473658253] [2021-06-05 03:46:42,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:42,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:42,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:42,462 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:42,462 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473658253] [2021-06-05 03:46:42,462 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473658253] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:42,462 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:42,462 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:42,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409973759] [2021-06-05 03:46:42,462 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:42,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:42,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:42,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:42,463 INFO L87 Difference]: Start difference. First operand 5131 states and 24350 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:42,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:42,580 INFO L93 Difference]: Finished difference Result 10991 states and 49317 transitions. [2021-06-05 03:46:42,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:42,580 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:42,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:42,606 INFO L225 Difference]: With dead ends: 10991 [2021-06-05 03:46:42,606 INFO L226 Difference]: Without dead ends: 10576 [2021-06-05 03:46:42,606 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:42,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10576 states. [2021-06-05 03:46:42,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10576 to 5179. [2021-06-05 03:46:42,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.736577829277714) internal successors, (24526), 5178 states have internal predecessors, (24526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:42,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24526 transitions. [2021-06-05 03:46:42,831 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24526 transitions. Word has length 29 [2021-06-05 03:46:42,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:42,831 INFO L482 AbstractCegarLoop]: Abstraction has 5179 states and 24526 transitions. [2021-06-05 03:46:42,831 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:42,831 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24526 transitions. [2021-06-05 03:46:42,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:42,840 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:42,840 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:42,840 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable931 [2021-06-05 03:46:42,840 INFO L430 AbstractCegarLoop]: === Iteration 933 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:42,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:42,840 INFO L82 PathProgramCache]: Analyzing trace with hash 569402153, now seen corresponding path program 928 times [2021-06-05 03:46:42,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:42,840 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659355136] [2021-06-05 03:46:42,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:42,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:42,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:42,943 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:42,943 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659355136] [2021-06-05 03:46:42,943 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659355136] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:42,943 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:42,943 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:42,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090957237] [2021-06-05 03:46:42,943 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:42,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:42,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:42,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:42,944 INFO L87 Difference]: Start difference. First operand 5179 states and 24526 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:43,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:43,061 INFO L93 Difference]: Finished difference Result 10719 states and 48308 transitions. [2021-06-05 03:46:43,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:43,061 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:43,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:43,087 INFO L225 Difference]: With dead ends: 10719 [2021-06-05 03:46:43,087 INFO L226 Difference]: Without dead ends: 10208 [2021-06-05 03:46:43,087 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 127.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:43,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10208 states. [2021-06-05 03:46:43,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10208 to 5131. [2021-06-05 03:46:43,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.741910331384015) internal successors, (24326), 5130 states have internal predecessors, (24326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:43,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24326 transitions. [2021-06-05 03:46:43,310 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24326 transitions. Word has length 29 [2021-06-05 03:46:43,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:43,311 INFO L482 AbstractCegarLoop]: Abstraction has 5131 states and 24326 transitions. [2021-06-05 03:46:43,311 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:43,311 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24326 transitions. [2021-06-05 03:46:43,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:43,319 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:43,319 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:43,320 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable932 [2021-06-05 03:46:43,320 INFO L430 AbstractCegarLoop]: === Iteration 934 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:43,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:43,320 INFO L82 PathProgramCache]: Analyzing trace with hash 794853097, now seen corresponding path program 929 times [2021-06-05 03:46:43,320 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:43,320 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408818574] [2021-06-05 03:46:43,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:43,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:43,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:43,423 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:43,423 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408818574] [2021-06-05 03:46:43,423 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408818574] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:43,423 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:43,423 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:43,423 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618675622] [2021-06-05 03:46:43,423 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:43,423 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:43,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:43,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:43,424 INFO L87 Difference]: Start difference. First operand 5131 states and 24326 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:43,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:43,541 INFO L93 Difference]: Finished difference Result 11075 states and 49681 transitions. [2021-06-05 03:46:43,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:43,542 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:43,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:43,568 INFO L225 Difference]: With dead ends: 11075 [2021-06-05 03:46:43,568 INFO L226 Difference]: Without dead ends: 10600 [2021-06-05 03:46:43,568 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 129.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:43,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10600 states. [2021-06-05 03:46:43,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10600 to 5203. [2021-06-05 03:46:43,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5203 states, 5202 states have (on average 4.729334871203383) internal successors, (24602), 5202 states have internal predecessors, (24602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:43,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5203 states to 5203 states and 24602 transitions. [2021-06-05 03:46:43,793 INFO L78 Accepts]: Start accepts. Automaton has 5203 states and 24602 transitions. Word has length 29 [2021-06-05 03:46:43,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:43,793 INFO L482 AbstractCegarLoop]: Abstraction has 5203 states and 24602 transitions. [2021-06-05 03:46:43,793 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:43,793 INFO L276 IsEmpty]: Start isEmpty. Operand 5203 states and 24602 transitions. [2021-06-05 03:46:43,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:43,801 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:43,802 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:43,802 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable933 [2021-06-05 03:46:43,802 INFO L430 AbstractCegarLoop]: === Iteration 935 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:43,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:43,802 INFO L82 PathProgramCache]: Analyzing trace with hash -597291449, now seen corresponding path program 930 times [2021-06-05 03:46:43,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:43,802 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661245788] [2021-06-05 03:46:43,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:43,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:43,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:43,905 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:43,905 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661245788] [2021-06-05 03:46:43,905 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661245788] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:43,905 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:43,905 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:43,905 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316693536] [2021-06-05 03:46:43,905 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:43,905 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:43,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:43,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:43,906 INFO L87 Difference]: Start difference. First operand 5203 states and 24602 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:44,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:44,023 INFO L93 Difference]: Finished difference Result 10743 states and 48384 transitions. [2021-06-05 03:46:44,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:44,023 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:44,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:44,049 INFO L225 Difference]: With dead ends: 10743 [2021-06-05 03:46:44,049 INFO L226 Difference]: Without dead ends: 10184 [2021-06-05 03:46:44,049 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:44,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10184 states. [2021-06-05 03:46:44,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10184 to 5107. [2021-06-05 03:46:44,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5107 states, 5106 states have (on average 4.746964355660007) internal successors, (24238), 5106 states have internal predecessors, (24238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:44,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5107 states to 5107 states and 24238 transitions. [2021-06-05 03:46:44,320 INFO L78 Accepts]: Start accepts. Automaton has 5107 states and 24238 transitions. Word has length 29 [2021-06-05 03:46:44,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:44,320 INFO L482 AbstractCegarLoop]: Abstraction has 5107 states and 24238 transitions. [2021-06-05 03:46:44,320 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:44,320 INFO L276 IsEmpty]: Start isEmpty. Operand 5107 states and 24238 transitions. [2021-06-05 03:46:44,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:44,329 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:44,329 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:44,329 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable934 [2021-06-05 03:46:44,329 INFO L430 AbstractCegarLoop]: === Iteration 936 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:44,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:44,329 INFO L82 PathProgramCache]: Analyzing trace with hash -90626421, now seen corresponding path program 931 times [2021-06-05 03:46:44,329 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:44,329 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413078483] [2021-06-05 03:46:44,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:44,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:44,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:44,430 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:44,430 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413078483] [2021-06-05 03:46:44,430 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413078483] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:44,430 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:44,430 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:44,430 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109437655] [2021-06-05 03:46:44,430 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:44,430 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:44,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:44,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:44,431 INFO L87 Difference]: Start difference. First operand 5107 states and 24238 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:44,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:44,560 INFO L93 Difference]: Finished difference Result 11351 states and 50915 transitions. [2021-06-05 03:46:44,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:44,560 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:44,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:44,587 INFO L225 Difference]: With dead ends: 11351 [2021-06-05 03:46:44,587 INFO L226 Difference]: Without dead ends: 10874 [2021-06-05 03:46:44,587 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 126.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:44,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10874 states. [2021-06-05 03:46:44,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10874 to 5221. [2021-06-05 03:46:44,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5221 states, 5220 states have (on average 4.7362068965517246) internal successors, (24723), 5220 states have internal predecessors, (24723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:44,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5221 states to 5221 states and 24723 transitions. [2021-06-05 03:46:44,816 INFO L78 Accepts]: Start accepts. Automaton has 5221 states and 24723 transitions. Word has length 29 [2021-06-05 03:46:44,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:44,816 INFO L482 AbstractCegarLoop]: Abstraction has 5221 states and 24723 transitions. [2021-06-05 03:46:44,816 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:44,816 INFO L276 IsEmpty]: Start isEmpty. Operand 5221 states and 24723 transitions. [2021-06-05 03:46:44,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:44,825 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:44,825 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:44,825 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable935 [2021-06-05 03:46:44,825 INFO L430 AbstractCegarLoop]: === Iteration 937 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:44,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:44,826 INFO L82 PathProgramCache]: Analyzing trace with hash -1482770967, now seen corresponding path program 932 times [2021-06-05 03:46:44,826 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:44,826 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320218399] [2021-06-05 03:46:44,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:44,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:44,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:44,927 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:44,927 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320218399] [2021-06-05 03:46:44,927 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320218399] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:44,927 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:44,927 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:44,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101152983] [2021-06-05 03:46:44,927 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:44,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:44,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:44,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:44,927 INFO L87 Difference]: Start difference. First operand 5221 states and 24723 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:45,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:45,058 INFO L93 Difference]: Finished difference Result 11349 states and 50832 transitions. [2021-06-05 03:46:45,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:45,058 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:45,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:45,085 INFO L225 Difference]: With dead ends: 11349 [2021-06-05 03:46:45,085 INFO L226 Difference]: Without dead ends: 10796 [2021-06-05 03:46:45,085 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 126.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:45,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10796 states. [2021-06-05 03:46:45,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10796 to 5143. [2021-06-05 03:46:45,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.744068455853753) internal successors, (24394), 5142 states have internal predecessors, (24394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:45,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24394 transitions. [2021-06-05 03:46:45,315 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24394 transitions. Word has length 29 [2021-06-05 03:46:45,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:45,315 INFO L482 AbstractCegarLoop]: Abstraction has 5143 states and 24394 transitions. [2021-06-05 03:46:45,315 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:45,315 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24394 transitions. [2021-06-05 03:46:45,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:45,324 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:45,324 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:45,324 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable936 [2021-06-05 03:46:45,324 INFO L430 AbstractCegarLoop]: === Iteration 938 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:45,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:45,324 INFO L82 PathProgramCache]: Analyzing trace with hash 2088261225, now seen corresponding path program 933 times [2021-06-05 03:46:45,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:45,324 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118791733] [2021-06-05 03:46:45,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:45,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:45,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:45,439 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:45,439 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118791733] [2021-06-05 03:46:45,439 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118791733] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:45,439 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:45,439 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:45,440 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845154061] [2021-06-05 03:46:45,440 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:45,440 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:45,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:45,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:45,440 INFO L87 Difference]: Start difference. First operand 5143 states and 24394 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:45,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:45,549 INFO L93 Difference]: Finished difference Result 11175 states and 50147 transitions. [2021-06-05 03:46:45,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:45,549 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:45,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:45,576 INFO L225 Difference]: With dead ends: 11175 [2021-06-05 03:46:45,576 INFO L226 Difference]: Without dead ends: 10698 [2021-06-05 03:46:45,576 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 139.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:45,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10698 states. [2021-06-05 03:46:45,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10698 to 5215. [2021-06-05 03:46:45,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5215 states, 5214 states have (on average 4.731492136555428) internal successors, (24670), 5214 states have internal predecessors, (24670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:45,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5215 states to 5215 states and 24670 transitions. [2021-06-05 03:46:45,802 INFO L78 Accepts]: Start accepts. Automaton has 5215 states and 24670 transitions. Word has length 29 [2021-06-05 03:46:45,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:45,802 INFO L482 AbstractCegarLoop]: Abstraction has 5215 states and 24670 transitions. [2021-06-05 03:46:45,802 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:45,802 INFO L276 IsEmpty]: Start isEmpty. Operand 5215 states and 24670 transitions. [2021-06-05 03:46:45,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:45,811 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:45,811 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:45,811 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable937 [2021-06-05 03:46:45,811 INFO L430 AbstractCegarLoop]: === Iteration 939 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:45,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:45,811 INFO L82 PathProgramCache]: Analyzing trace with hash -999725335, now seen corresponding path program 934 times [2021-06-05 03:46:45,811 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:45,811 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642022553] [2021-06-05 03:46:45,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:45,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:45,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:45,924 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:45,924 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642022553] [2021-06-05 03:46:45,924 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642022553] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:45,924 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:45,924 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:45,924 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064467046] [2021-06-05 03:46:45,924 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:45,924 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:45,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:45,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:45,924 INFO L87 Difference]: Start difference. First operand 5215 states and 24670 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:46,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:46,032 INFO L93 Difference]: Finished difference Result 10841 states and 48845 transitions. [2021-06-05 03:46:46,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:46,032 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:46,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:46,057 INFO L225 Difference]: With dead ends: 10841 [2021-06-05 03:46:46,058 INFO L226 Difference]: Without dead ends: 10306 [2021-06-05 03:46:46,058 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 136.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:46,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10306 states. [2021-06-05 03:46:46,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10306 to 5143. [2021-06-05 03:46:46,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.73706728899261) internal successors, (24358), 5142 states have internal predecessors, (24358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:46,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24358 transitions. [2021-06-05 03:46:46,280 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24358 transitions. Word has length 29 [2021-06-05 03:46:46,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:46,280 INFO L482 AbstractCegarLoop]: Abstraction has 5143 states and 24358 transitions. [2021-06-05 03:46:46,280 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:46,280 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24358 transitions. [2021-06-05 03:46:46,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:46,289 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:46,289 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:46,289 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable938 [2021-06-05 03:46:46,289 INFO L430 AbstractCegarLoop]: === Iteration 940 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:46,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:46,290 INFO L82 PathProgramCache]: Analyzing trace with hash -1842448697, now seen corresponding path program 935 times [2021-06-05 03:46:46,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:46,290 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183468728] [2021-06-05 03:46:46,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:46,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:46,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:46,392 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:46,392 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183468728] [2021-06-05 03:46:46,392 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183468728] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:46,392 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:46,392 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:46,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797874469] [2021-06-05 03:46:46,393 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:46,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:46,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:46,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:46,393 INFO L87 Difference]: Start difference. First operand 5143 states and 24358 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:46,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:46,508 INFO L93 Difference]: Finished difference Result 11173 states and 50106 transitions. [2021-06-05 03:46:46,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:46,508 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:46,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:46,536 INFO L225 Difference]: With dead ends: 11173 [2021-06-05 03:46:46,536 INFO L226 Difference]: Without dead ends: 10698 [2021-06-05 03:46:46,536 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:46,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10698 states. [2021-06-05 03:46:46,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10698 to 5215. [2021-06-05 03:46:46,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5215 states, 5214 states have (on average 4.724587648638281) internal successors, (24634), 5214 states have internal predecessors, (24634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:46,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5215 states to 5215 states and 24634 transitions. [2021-06-05 03:46:46,767 INFO L78 Accepts]: Start accepts. Automaton has 5215 states and 24634 transitions. Word has length 29 [2021-06-05 03:46:46,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:46,767 INFO L482 AbstractCegarLoop]: Abstraction has 5215 states and 24634 transitions. [2021-06-05 03:46:46,767 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:46,767 INFO L276 IsEmpty]: Start isEmpty. Operand 5215 states and 24634 transitions. [2021-06-05 03:46:46,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:46,775 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:46,776 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:46,776 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable939 [2021-06-05 03:46:46,776 INFO L430 AbstractCegarLoop]: === Iteration 941 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:46,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:46,776 INFO L82 PathProgramCache]: Analyzing trace with hash -2049256663, now seen corresponding path program 936 times [2021-06-05 03:46:46,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:46,776 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051926286] [2021-06-05 03:46:46,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:46,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:46,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:46,877 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:46,877 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051926286] [2021-06-05 03:46:46,877 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051926286] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:46,877 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:46,877 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:46,877 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033084962] [2021-06-05 03:46:46,877 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:46,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:46,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:46,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:46,877 INFO L87 Difference]: Start difference. First operand 5215 states and 24634 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:46,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:46,991 INFO L93 Difference]: Finished difference Result 10841 states and 48809 transitions. [2021-06-05 03:46:46,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:46,991 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:46,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:47,017 INFO L225 Difference]: With dead ends: 10841 [2021-06-05 03:46:47,017 INFO L226 Difference]: Without dead ends: 10258 [2021-06-05 03:46:47,017 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 125.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:47,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10258 states. [2021-06-05 03:46:47,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10258 to 5095. [2021-06-05 03:46:47,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5095 states, 5094 states have (on average 4.75068708284256) internal successors, (24200), 5094 states have internal predecessors, (24200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:47,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5095 states to 5095 states and 24200 transitions. [2021-06-05 03:46:47,242 INFO L78 Accepts]: Start accepts. Automaton has 5095 states and 24200 transitions. Word has length 29 [2021-06-05 03:46:47,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:47,242 INFO L482 AbstractCegarLoop]: Abstraction has 5095 states and 24200 transitions. [2021-06-05 03:46:47,242 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:47,242 INFO L276 IsEmpty]: Start isEmpty. Operand 5095 states and 24200 transitions. [2021-06-05 03:46:47,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:47,251 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:47,251 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:47,251 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable940 [2021-06-05 03:46:47,251 INFO L430 AbstractCegarLoop]: === Iteration 942 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:47,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:47,251 INFO L82 PathProgramCache]: Analyzing trace with hash -1110366581, now seen corresponding path program 937 times [2021-06-05 03:46:47,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:47,251 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840533912] [2021-06-05 03:46:47,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:47,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:47,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:47,357 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:47,357 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840533912] [2021-06-05 03:46:47,357 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840533912] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:47,357 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:47,357 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:47,357 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602856841] [2021-06-05 03:46:47,357 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:47,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:47,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:47,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:47,357 INFO L87 Difference]: Start difference. First operand 5095 states and 24200 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:47,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:47,458 INFO L93 Difference]: Finished difference Result 12307 states and 55050 transitions. [2021-06-05 03:46:47,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:47,458 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:47,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:47,488 INFO L225 Difference]: With dead ends: 12307 [2021-06-05 03:46:47,488 INFO L226 Difference]: Without dead ends: 11765 [2021-06-05 03:46:47,488 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 113.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:47,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11765 states. [2021-06-05 03:46:47,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11765 to 5367. [2021-06-05 03:46:47,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5367 states, 5366 states have (on average 4.720275810659709) internal successors, (25329), 5366 states have internal predecessors, (25329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:47,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5367 states to 5367 states and 25329 transitions. [2021-06-05 03:46:47,729 INFO L78 Accepts]: Start accepts. Automaton has 5367 states and 25329 transitions. Word has length 29 [2021-06-05 03:46:47,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:47,729 INFO L482 AbstractCegarLoop]: Abstraction has 5367 states and 25329 transitions. [2021-06-05 03:46:47,729 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:47,729 INFO L276 IsEmpty]: Start isEmpty. Operand 5367 states and 25329 transitions. [2021-06-05 03:46:47,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:47,738 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:47,738 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:47,738 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable941 [2021-06-05 03:46:47,738 INFO L430 AbstractCegarLoop]: === Iteration 943 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:47,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:47,738 INFO L82 PathProgramCache]: Analyzing trace with hash 1141263721, now seen corresponding path program 938 times [2021-06-05 03:46:47,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:47,738 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826246620] [2021-06-05 03:46:47,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:47,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:47,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:47,843 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:47,843 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826246620] [2021-06-05 03:46:47,843 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826246620] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:47,843 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:47,843 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:47,843 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573717627] [2021-06-05 03:46:47,843 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:47,843 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:47,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:47,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:47,844 INFO L87 Difference]: Start difference. First operand 5367 states and 25329 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:47,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:47,963 INFO L93 Difference]: Finished difference Result 12242 states and 54681 transitions. [2021-06-05 03:46:47,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:47,964 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:47,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:47,993 INFO L225 Difference]: With dead ends: 12242 [2021-06-05 03:46:47,993 INFO L226 Difference]: Without dead ends: 11622 [2021-06-05 03:46:47,993 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 129.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:48,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11622 states. [2021-06-05 03:46:48,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11622 to 5224. [2021-06-05 03:46:48,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5224 states, 5223 states have (on average 4.73654987555045) internal successors, (24739), 5223 states have internal predecessors, (24739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:48,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5224 states to 5224 states and 24739 transitions. [2021-06-05 03:46:48,232 INFO L78 Accepts]: Start accepts. Automaton has 5224 states and 24739 transitions. Word has length 29 [2021-06-05 03:46:48,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:48,232 INFO L482 AbstractCegarLoop]: Abstraction has 5224 states and 24739 transitions. [2021-06-05 03:46:48,232 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:48,232 INFO L276 IsEmpty]: Start isEmpty. Operand 5224 states and 24739 transitions. [2021-06-05 03:46:48,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:48,241 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:48,241 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:48,241 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable942 [2021-06-05 03:46:48,241 INFO L430 AbstractCegarLoop]: === Iteration 944 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:48,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:48,241 INFO L82 PathProgramCache]: Analyzing trace with hash 1068521065, now seen corresponding path program 939 times [2021-06-05 03:46:48,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:48,241 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312005247] [2021-06-05 03:46:48,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:48,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:48,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:48,361 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:48,361 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312005247] [2021-06-05 03:46:48,361 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312005247] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:48,361 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:48,361 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:48,361 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25302570] [2021-06-05 03:46:48,361 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:48,361 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:48,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:48,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:48,361 INFO L87 Difference]: Start difference. First operand 5224 states and 24739 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:48,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:48,482 INFO L93 Difference]: Finished difference Result 12272 states and 54859 transitions. [2021-06-05 03:46:48,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:48,482 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:48,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:48,518 INFO L225 Difference]: With dead ends: 12272 [2021-06-05 03:46:48,519 INFO L226 Difference]: Without dead ends: 11730 [2021-06-05 03:46:48,519 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 127.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:48,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11730 states. [2021-06-05 03:46:48,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11730 to 5334. [2021-06-05 03:46:48,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5334 states, 5333 states have (on average 4.714794674667167) internal successors, (25144), 5333 states have internal predecessors, (25144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:48,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5334 states to 5334 states and 25144 transitions. [2021-06-05 03:46:48,766 INFO L78 Accepts]: Start accepts. Automaton has 5334 states and 25144 transitions. Word has length 29 [2021-06-05 03:46:48,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:48,766 INFO L482 AbstractCegarLoop]: Abstraction has 5334 states and 25144 transitions. [2021-06-05 03:46:48,766 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:48,766 INFO L276 IsEmpty]: Start isEmpty. Operand 5334 states and 25144 transitions. [2021-06-05 03:46:48,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:48,775 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:48,775 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:48,775 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable943 [2021-06-05 03:46:48,776 INFO L430 AbstractCegarLoop]: === Iteration 945 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:48,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:48,776 INFO L82 PathProgramCache]: Analyzing trace with hash 1624309353, now seen corresponding path program 940 times [2021-06-05 03:46:48,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:48,776 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140660364] [2021-06-05 03:46:48,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:48,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:48,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:48,879 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:48,879 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140660364] [2021-06-05 03:46:48,879 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140660364] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:48,879 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:48,879 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:48,879 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789830737] [2021-06-05 03:46:48,879 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:48,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:48,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:48,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:48,880 INFO L87 Difference]: Start difference. First operand 5334 states and 25144 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:48,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:48,993 INFO L93 Difference]: Finished difference Result 12205 states and 54486 transitions. [2021-06-05 03:46:48,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:48,993 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:48,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:49,022 INFO L225 Difference]: With dead ends: 12205 [2021-06-05 03:46:49,022 INFO L226 Difference]: Without dead ends: 11620 [2021-06-05 03:46:49,022 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:49,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11620 states. [2021-06-05 03:46:49,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11620 to 5224. [2021-06-05 03:46:49,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5224 states, 5223 states have (on average 4.726019529006318) internal successors, (24684), 5223 states have internal predecessors, (24684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:49,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5224 states to 5224 states and 24684 transitions. [2021-06-05 03:46:49,256 INFO L78 Accepts]: Start accepts. Automaton has 5224 states and 24684 transitions. Word has length 29 [2021-06-05 03:46:49,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:49,256 INFO L482 AbstractCegarLoop]: Abstraction has 5224 states and 24684 transitions. [2021-06-05 03:46:49,256 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:49,256 INFO L276 IsEmpty]: Start isEmpty. Operand 5224 states and 24684 transitions. [2021-06-05 03:46:49,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:49,265 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:49,265 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:49,265 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable944 [2021-06-05 03:46:49,265 INFO L430 AbstractCegarLoop]: === Iteration 946 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:49,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:49,265 INFO L82 PathProgramCache]: Analyzing trace with hash 2050868679, now seen corresponding path program 941 times [2021-06-05 03:46:49,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:49,265 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999034224] [2021-06-05 03:46:49,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:49,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:49,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:49,369 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:49,369 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999034224] [2021-06-05 03:46:49,369 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999034224] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:49,370 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:49,370 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:49,370 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57960270] [2021-06-05 03:46:49,370 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:49,370 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:49,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:49,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:49,370 INFO L87 Difference]: Start difference. First operand 5224 states and 24684 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:49,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:49,487 INFO L93 Difference]: Finished difference Result 12110 states and 54144 transitions. [2021-06-05 03:46:49,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:49,487 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:49,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:49,515 INFO L225 Difference]: With dead ends: 12110 [2021-06-05 03:46:49,516 INFO L226 Difference]: Without dead ends: 11633 [2021-06-05 03:46:49,516 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 129.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:49,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11633 states. [2021-06-05 03:46:49,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11633 to 5302. [2021-06-05 03:46:49,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5301 states have (on average 4.711752499528391) internal successors, (24977), 5301 states have internal predecessors, (24977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:49,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 24977 transitions. [2021-06-05 03:46:49,751 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 24977 transitions. Word has length 29 [2021-06-05 03:46:49,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:49,751 INFO L482 AbstractCegarLoop]: Abstraction has 5302 states and 24977 transitions. [2021-06-05 03:46:49,751 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:49,751 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 24977 transitions. [2021-06-05 03:46:49,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:49,759 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:49,759 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:49,760 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable945 [2021-06-05 03:46:49,760 INFO L430 AbstractCegarLoop]: === Iteration 947 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:49,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:49,760 INFO L82 PathProgramCache]: Analyzing trace with hash 1844060713, now seen corresponding path program 942 times [2021-06-05 03:46:49,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:49,760 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097549485] [2021-06-05 03:46:49,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:49,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:49,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:49,863 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:49,863 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097549485] [2021-06-05 03:46:49,863 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097549485] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:49,863 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:49,863 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:49,864 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395421810] [2021-06-05 03:46:49,864 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:49,864 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:49,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:49,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:49,864 INFO L87 Difference]: Start difference. First operand 5302 states and 24977 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:49,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:49,985 INFO L93 Difference]: Finished difference Result 12108 states and 54061 transitions. [2021-06-05 03:46:49,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:49,985 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:49,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:50,013 INFO L225 Difference]: With dead ends: 12108 [2021-06-05 03:46:50,014 INFO L226 Difference]: Without dead ends: 11468 [2021-06-05 03:46:50,014 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:50,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11468 states. [2021-06-05 03:46:50,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11468 to 5137. [2021-06-05 03:46:50,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5137 states, 5136 states have (on average 4.745132398753894) internal successors, (24371), 5136 states have internal predecessors, (24371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:50,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5137 states to 5137 states and 24371 transitions. [2021-06-05 03:46:50,242 INFO L78 Accepts]: Start accepts. Automaton has 5137 states and 24371 transitions. Word has length 29 [2021-06-05 03:46:50,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:50,243 INFO L482 AbstractCegarLoop]: Abstraction has 5137 states and 24371 transitions. [2021-06-05 03:46:50,243 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:50,243 INFO L276 IsEmpty]: Start isEmpty. Operand 5137 states and 24371 transitions. [2021-06-05 03:46:50,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:50,251 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:50,251 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:50,251 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable946 [2021-06-05 03:46:50,251 INFO L430 AbstractCegarLoop]: === Iteration 948 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:50,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:50,251 INFO L82 PathProgramCache]: Analyzing trace with hash 1151588073, now seen corresponding path program 943 times [2021-06-05 03:46:50,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:50,252 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690743979] [2021-06-05 03:46:50,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:50,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:50,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:50,365 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:50,365 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690743979] [2021-06-05 03:46:50,365 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690743979] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:50,365 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:50,365 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:50,365 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207551090] [2021-06-05 03:46:50,365 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:50,365 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:50,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:50,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:50,365 INFO L87 Difference]: Start difference. First operand 5137 states and 24371 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:50,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:50,468 INFO L93 Difference]: Finished difference Result 12121 states and 54231 transitions. [2021-06-05 03:46:50,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:50,468 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:50,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:50,499 INFO L225 Difference]: With dead ends: 12121 [2021-06-05 03:46:50,499 INFO L226 Difference]: Without dead ends: 11579 [2021-06-05 03:46:50,499 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 121.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:50,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11579 states. [2021-06-05 03:46:50,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11579 to 5348. [2021-06-05 03:46:50,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5348 states, 5347 states have (on average 4.717785674209837) internal successors, (25226), 5347 states have internal predecessors, (25226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:50,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5348 states to 5348 states and 25226 transitions. [2021-06-05 03:46:50,740 INFO L78 Accepts]: Start accepts. Automaton has 5348 states and 25226 transitions. Word has length 29 [2021-06-05 03:46:50,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:50,740 INFO L482 AbstractCegarLoop]: Abstraction has 5348 states and 25226 transitions. [2021-06-05 03:46:50,740 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:50,740 INFO L276 IsEmpty]: Start isEmpty. Operand 5348 states and 25226 transitions. [2021-06-05 03:46:50,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:50,749 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:50,749 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:50,749 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable947 [2021-06-05 03:46:50,749 INFO L430 AbstractCegarLoop]: === Iteration 949 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:50,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:50,750 INFO L82 PathProgramCache]: Analyzing trace with hash -891748921, now seen corresponding path program 944 times [2021-06-05 03:46:50,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:50,750 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790860032] [2021-06-05 03:46:50,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:50,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:50,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:50,862 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:50,862 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790860032] [2021-06-05 03:46:50,862 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790860032] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:50,862 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:50,862 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:50,862 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966112338] [2021-06-05 03:46:50,862 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:50,862 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:50,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:50,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:50,862 INFO L87 Difference]: Start difference. First operand 5348 states and 25226 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:50,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:50,972 INFO L93 Difference]: Finished difference Result 12056 states and 53862 transitions. [2021-06-05 03:46:50,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:50,972 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:50,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:51,000 INFO L225 Difference]: With dead ends: 12056 [2021-06-05 03:46:51,000 INFO L226 Difference]: Without dead ends: 11436 [2021-06-05 03:46:51,000 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 137.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:51,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11436 states. [2021-06-05 03:46:51,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11436 to 5205. [2021-06-05 03:46:51,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5205 states, 5204 states have (on average 4.734627209838585) internal successors, (24639), 5204 states have internal predecessors, (24639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:51,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5205 states to 5205 states and 24639 transitions. [2021-06-05 03:46:51,232 INFO L78 Accepts]: Start accepts. Automaton has 5205 states and 24639 transitions. Word has length 29 [2021-06-05 03:46:51,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:51,232 INFO L482 AbstractCegarLoop]: Abstraction has 5205 states and 24639 transitions. [2021-06-05 03:46:51,232 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:51,232 INFO L276 IsEmpty]: Start isEmpty. Operand 5205 states and 24639 transitions. [2021-06-05 03:46:51,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:51,241 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:51,241 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:51,241 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable948 [2021-06-05 03:46:51,241 INFO L430 AbstractCegarLoop]: === Iteration 950 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:51,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:51,241 INFO L82 PathProgramCache]: Analyzing trace with hash 1418905449, now seen corresponding path program 945 times [2021-06-05 03:46:51,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:51,241 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712417220] [2021-06-05 03:46:51,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:51,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:51,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:51,368 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:51,368 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712417220] [2021-06-05 03:46:51,368 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712417220] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:51,369 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:51,369 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:51,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142687434] [2021-06-05 03:46:51,369 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:51,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:51,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:51,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:51,369 INFO L87 Difference]: Start difference. First operand 5205 states and 24639 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:51,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:51,465 INFO L93 Difference]: Finished difference Result 11845 states and 53053 transitions. [2021-06-05 03:46:51,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:51,465 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:51,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:51,492 INFO L225 Difference]: With dead ends: 11845 [2021-06-05 03:46:51,493 INFO L226 Difference]: Without dead ends: 11303 [2021-06-05 03:46:51,493 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 135.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:51,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11303 states. [2021-06-05 03:46:51,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11303 to 5309. [2021-06-05 03:46:51,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5309 states, 5308 states have (on average 4.714958553127355) internal successors, (25027), 5308 states have internal predecessors, (25027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:51,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5309 states to 5309 states and 25027 transitions. [2021-06-05 03:46:51,723 INFO L78 Accepts]: Start accepts. Automaton has 5309 states and 25027 transitions. Word has length 29 [2021-06-05 03:46:51,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:51,723 INFO L482 AbstractCegarLoop]: Abstraction has 5309 states and 25027 transitions. [2021-06-05 03:46:51,723 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:51,723 INFO L276 IsEmpty]: Start isEmpty. Operand 5309 states and 25027 transitions. [2021-06-05 03:46:51,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:51,732 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:51,732 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:51,732 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable949 [2021-06-05 03:46:51,732 INFO L430 AbstractCegarLoop]: === Iteration 951 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:51,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:51,732 INFO L82 PathProgramCache]: Analyzing trace with hash 701337449, now seen corresponding path program 946 times [2021-06-05 03:46:51,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:51,732 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980410383] [2021-06-05 03:46:51,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:51,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:51,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:51,858 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:51,858 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980410383] [2021-06-05 03:46:51,858 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980410383] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:51,858 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:51,858 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:51,858 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173823442] [2021-06-05 03:46:51,858 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:51,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:51,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:51,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:51,858 INFO L87 Difference]: Start difference. First operand 5309 states and 25027 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:51,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:51,977 INFO L93 Difference]: Finished difference Result 11446 states and 51461 transitions. [2021-06-05 03:46:51,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:51,978 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:51,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:52,005 INFO L225 Difference]: With dead ends: 11446 [2021-06-05 03:46:52,006 INFO L226 Difference]: Without dead ends: 10879 [2021-06-05 03:46:52,006 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 150.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:52,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10879 states. [2021-06-05 03:46:52,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10879 to 5205. [2021-06-05 03:46:52,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5205 states, 5204 states have (on average 4.724634896233667) internal successors, (24587), 5204 states have internal predecessors, (24587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:52,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5205 states to 5205 states and 24587 transitions. [2021-06-05 03:46:52,233 INFO L78 Accepts]: Start accepts. Automaton has 5205 states and 24587 transitions. Word has length 29 [2021-06-05 03:46:52,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:52,234 INFO L482 AbstractCegarLoop]: Abstraction has 5205 states and 24587 transitions. [2021-06-05 03:46:52,234 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:52,234 INFO L276 IsEmpty]: Start isEmpty. Operand 5205 states and 24587 transitions. [2021-06-05 03:46:52,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:52,242 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:52,242 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:52,242 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable950 [2021-06-05 03:46:52,242 INFO L430 AbstractCegarLoop]: === Iteration 952 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:52,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:52,242 INFO L82 PathProgramCache]: Analyzing trace with hash -1893714233, now seen corresponding path program 947 times [2021-06-05 03:46:52,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:52,242 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405940200] [2021-06-05 03:46:52,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:52,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:52,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:52,366 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:52,366 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405940200] [2021-06-05 03:46:52,366 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405940200] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:52,366 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:52,366 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:52,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405378306] [2021-06-05 03:46:52,366 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:52,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:52,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:52,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:52,366 INFO L87 Difference]: Start difference. First operand 5205 states and 24587 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:52,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:52,477 INFO L93 Difference]: Finished difference Result 11748 states and 52599 transitions. [2021-06-05 03:46:52,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:52,478 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:52,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:52,506 INFO L225 Difference]: With dead ends: 11748 [2021-06-05 03:46:52,506 INFO L226 Difference]: Without dead ends: 11271 [2021-06-05 03:46:52,506 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 148.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:52,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11271 states. [2021-06-05 03:46:52,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11271 to 5277. [2021-06-05 03:46:52,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5277 states, 5276 states have (on average 4.712471569370735) internal successors, (24863), 5276 states have internal predecessors, (24863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:52,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5277 states to 5277 states and 24863 transitions. [2021-06-05 03:46:52,737 INFO L78 Accepts]: Start accepts. Automaton has 5277 states and 24863 transitions. Word has length 29 [2021-06-05 03:46:52,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:52,737 INFO L482 AbstractCegarLoop]: Abstraction has 5277 states and 24863 transitions. [2021-06-05 03:46:52,737 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:52,737 INFO L276 IsEmpty]: Start isEmpty. Operand 5277 states and 24863 transitions. [2021-06-05 03:46:52,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:52,745 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:52,746 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:52,746 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable951 [2021-06-05 03:46:52,746 INFO L430 AbstractCegarLoop]: === Iteration 953 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:52,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:52,746 INFO L82 PathProgramCache]: Analyzing trace with hash -381296087, now seen corresponding path program 948 times [2021-06-05 03:46:52,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:52,746 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93866928] [2021-06-05 03:46:52,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:52,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:52,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:52,871 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:52,871 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93866928] [2021-06-05 03:46:52,871 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93866928] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:52,871 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:52,871 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:52,871 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172484400] [2021-06-05 03:46:52,871 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:52,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:52,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:52,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:52,871 INFO L87 Difference]: Start difference. First operand 5277 states and 24863 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:52,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:52,990 INFO L93 Difference]: Finished difference Result 11414 states and 51297 transitions. [2021-06-05 03:46:52,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:52,991 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:52,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:53,017 INFO L225 Difference]: With dead ends: 11414 [2021-06-05 03:46:53,017 INFO L226 Difference]: Without dead ends: 10811 [2021-06-05 03:46:53,017 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 149.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:53,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10811 states. [2021-06-05 03:46:53,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10811 to 5137. [2021-06-05 03:46:53,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5137 states, 5136 states have (on average 4.73851246105919) internal successors, (24337), 5136 states have internal predecessors, (24337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:53,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5137 states to 5137 states and 24337 transitions. [2021-06-05 03:46:53,241 INFO L78 Accepts]: Start accepts. Automaton has 5137 states and 24337 transitions. Word has length 29 [2021-06-05 03:46:53,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:53,241 INFO L482 AbstractCegarLoop]: Abstraction has 5137 states and 24337 transitions. [2021-06-05 03:46:53,241 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:53,241 INFO L276 IsEmpty]: Start isEmpty. Operand 5137 states and 24337 transitions. [2021-06-05 03:46:53,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:53,250 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:53,250 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:53,250 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable952 [2021-06-05 03:46:53,250 INFO L430 AbstractCegarLoop]: === Iteration 954 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:53,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:53,250 INFO L82 PathProgramCache]: Analyzing trace with hash -984393785, now seen corresponding path program 949 times [2021-06-05 03:46:53,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:53,251 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398918423] [2021-06-05 03:46:53,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:53,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:53,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:53,364 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:53,365 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398918423] [2021-06-05 03:46:53,365 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398918423] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:53,365 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:53,365 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:53,365 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954140036] [2021-06-05 03:46:53,365 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:53,365 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:53,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:53,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:53,365 INFO L87 Difference]: Start difference. First operand 5137 states and 24337 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:53,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:53,486 INFO L93 Difference]: Finished difference Result 12068 states and 54008 transitions. [2021-06-05 03:46:53,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:53,486 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:53,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:53,564 INFO L225 Difference]: With dead ends: 12068 [2021-06-05 03:46:53,564 INFO L226 Difference]: Without dead ends: 11526 [2021-06-05 03:46:53,564 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 115.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:53,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11526 states. [2021-06-05 03:46:53,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11526 to 5299. [2021-06-05 03:46:53,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5299 states, 5298 states have (on average 4.7214043035107585) internal successors, (25014), 5298 states have internal predecessors, (25014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:53,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5299 states to 5299 states and 25014 transitions. [2021-06-05 03:46:53,790 INFO L78 Accepts]: Start accepts. Automaton has 5299 states and 25014 transitions. Word has length 29 [2021-06-05 03:46:53,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:53,790 INFO L482 AbstractCegarLoop]: Abstraction has 5299 states and 25014 transitions. [2021-06-05 03:46:53,790 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:53,790 INFO L276 IsEmpty]: Start isEmpty. Operand 5299 states and 25014 transitions. [2021-06-05 03:46:53,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:53,799 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:53,799 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:53,799 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable953 [2021-06-05 03:46:53,799 INFO L430 AbstractCegarLoop]: === Iteration 955 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:53,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:53,799 INFO L82 PathProgramCache]: Analyzing trace with hash -428605497, now seen corresponding path program 950 times [2021-06-05 03:46:53,799 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:53,799 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227041639] [2021-06-05 03:46:53,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:53,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:53,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:53,901 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:53,901 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227041639] [2021-06-05 03:46:53,901 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227041639] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:53,901 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:53,901 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:53,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646023172] [2021-06-05 03:46:53,901 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:53,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:53,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:53,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:53,901 INFO L87 Difference]: Start difference. First operand 5299 states and 25014 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:54,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:54,020 INFO L93 Difference]: Finished difference Result 12001 states and 53635 transitions. [2021-06-05 03:46:54,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:54,021 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:54,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:54,049 INFO L225 Difference]: With dead ends: 12001 [2021-06-05 03:46:54,049 INFO L226 Difference]: Without dead ends: 11416 [2021-06-05 03:46:54,049 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 126.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:54,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11416 states. [2021-06-05 03:46:54,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11416 to 5189. [2021-06-05 03:46:54,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5189 states, 5188 states have (on average 4.733423284502699) internal successors, (24557), 5188 states have internal predecessors, (24557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:54,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5189 states to 5189 states and 24557 transitions. [2021-06-05 03:46:54,284 INFO L78 Accepts]: Start accepts. Automaton has 5189 states and 24557 transitions. Word has length 29 [2021-06-05 03:46:54,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:54,284 INFO L482 AbstractCegarLoop]: Abstraction has 5189 states and 24557 transitions. [2021-06-05 03:46:54,284 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:54,284 INFO L276 IsEmpty]: Start isEmpty. Operand 5189 states and 24557 transitions. [2021-06-05 03:46:54,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:54,293 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:54,293 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:54,293 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable954 [2021-06-05 03:46:54,293 INFO L430 AbstractCegarLoop]: === Iteration 956 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:54,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:54,293 INFO L82 PathProgramCache]: Analyzing trace with hash 2136613801, now seen corresponding path program 951 times [2021-06-05 03:46:54,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:54,293 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871974337] [2021-06-05 03:46:54,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:54,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:54,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:54,405 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:54,405 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871974337] [2021-06-05 03:46:54,406 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871974337] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:54,406 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:54,406 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:54,406 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373838600] [2021-06-05 03:46:54,406 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:54,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:54,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:54,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:54,406 INFO L87 Difference]: Start difference. First operand 5189 states and 24557 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:54,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:54,511 INFO L93 Difference]: Finished difference Result 11827 states and 52966 transitions. [2021-06-05 03:46:54,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:54,511 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:54,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:54,539 INFO L225 Difference]: With dead ends: 11827 [2021-06-05 03:46:54,539 INFO L226 Difference]: Without dead ends: 11285 [2021-06-05 03:46:54,539 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 120.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:54,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11285 states. [2021-06-05 03:46:54,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11285 to 5293. [2021-06-05 03:46:54,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5293 states, 5292 states have (on average 4.713718820861678) internal successors, (24945), 5292 states have internal predecessors, (24945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:54,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5293 states to 5293 states and 24945 transitions. [2021-06-05 03:46:54,772 INFO L78 Accepts]: Start accepts. Automaton has 5293 states and 24945 transitions. Word has length 29 [2021-06-05 03:46:54,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:54,772 INFO L482 AbstractCegarLoop]: Abstraction has 5293 states and 24945 transitions. [2021-06-05 03:46:54,772 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:54,772 INFO L276 IsEmpty]: Start isEmpty. Operand 5293 states and 24945 transitions. [2021-06-05 03:46:54,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:54,781 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:54,781 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:54,781 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable955 [2021-06-05 03:46:54,781 INFO L430 AbstractCegarLoop]: === Iteration 957 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:54,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:54,781 INFO L82 PathProgramCache]: Analyzing trace with hash -1331675193, now seen corresponding path program 952 times [2021-06-05 03:46:54,781 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:54,781 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23098057] [2021-06-05 03:46:54,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:54,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:54,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:54,893 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:54,893 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23098057] [2021-06-05 03:46:54,893 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23098057] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:54,894 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:54,894 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:54,894 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677118573] [2021-06-05 03:46:54,894 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:54,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:54,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:54,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:54,894 INFO L87 Difference]: Start difference. First operand 5293 states and 24945 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:55,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:55,004 INFO L93 Difference]: Finished difference Result 11428 states and 51374 transitions. [2021-06-05 03:46:55,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:55,005 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:55,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:55,031 INFO L225 Difference]: With dead ends: 11428 [2021-06-05 03:46:55,032 INFO L226 Difference]: Without dead ends: 10861 [2021-06-05 03:46:55,032 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 136.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:55,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10861 states. [2021-06-05 03:46:55,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10861 to 5189. [2021-06-05 03:46:55,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5189 states, 5188 states have (on average 4.723400154202005) internal successors, (24505), 5188 states have internal predecessors, (24505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:55,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5189 states to 5189 states and 24505 transitions. [2021-06-05 03:46:55,257 INFO L78 Accepts]: Start accepts. Automaton has 5189 states and 24505 transitions. Word has length 29 [2021-06-05 03:46:55,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:55,257 INFO L482 AbstractCegarLoop]: Abstraction has 5189 states and 24505 transitions. [2021-06-05 03:46:55,257 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:55,257 INFO L276 IsEmpty]: Start isEmpty. Operand 5189 states and 24505 transitions. [2021-06-05 03:46:55,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:55,265 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:55,265 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:55,265 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable956 [2021-06-05 03:46:55,265 INFO L430 AbstractCegarLoop]: === Iteration 958 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:55,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:55,265 INFO L82 PathProgramCache]: Analyzing trace with hash 1478281159, now seen corresponding path program 953 times [2021-06-05 03:46:55,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:55,265 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191761928] [2021-06-05 03:46:55,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:55,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:55,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:55,367 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:55,367 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191761928] [2021-06-05 03:46:55,367 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191761928] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:55,367 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:55,367 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:55,367 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630050378] [2021-06-05 03:46:55,367 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:55,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:55,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:55,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:55,367 INFO L87 Difference]: Start difference. First operand 5189 states and 24505 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:55,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:55,495 INFO L93 Difference]: Finished difference Result 11728 states and 52507 transitions. [2021-06-05 03:46:55,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:55,495 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:55,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:55,522 INFO L225 Difference]: With dead ends: 11728 [2021-06-05 03:46:55,523 INFO L226 Difference]: Without dead ends: 11253 [2021-06-05 03:46:55,523 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 126.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:55,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11253 states. [2021-06-05 03:46:55,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11253 to 5261. [2021-06-05 03:46:55,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5261 states, 5260 states have (on average 4.711216730038023) internal successors, (24781), 5260 states have internal predecessors, (24781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:55,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5261 states to 5261 states and 24781 transitions. [2021-06-05 03:46:55,754 INFO L78 Accepts]: Start accepts. Automaton has 5261 states and 24781 transitions. Word has length 29 [2021-06-05 03:46:55,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:55,754 INFO L482 AbstractCegarLoop]: Abstraction has 5261 states and 24781 transitions. [2021-06-05 03:46:55,754 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:55,754 INFO L276 IsEmpty]: Start isEmpty. Operand 5261 states and 24781 transitions. [2021-06-05 03:46:55,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:55,763 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:55,763 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:55,763 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable957 [2021-06-05 03:46:55,763 INFO L430 AbstractCegarLoop]: === Iteration 959 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:55,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:55,763 INFO L82 PathProgramCache]: Analyzing trace with hash 1271473193, now seen corresponding path program 954 times [2021-06-05 03:46:55,763 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:55,763 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921482490] [2021-06-05 03:46:55,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:55,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:55,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:55,864 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:55,865 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921482490] [2021-06-05 03:46:55,865 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921482490] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:55,865 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:55,865 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:55,865 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431067136] [2021-06-05 03:46:55,865 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:55,865 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:55,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:55,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:55,865 INFO L87 Difference]: Start difference. First operand 5261 states and 24781 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:55,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:55,985 INFO L93 Difference]: Finished difference Result 11396 states and 51210 transitions. [2021-06-05 03:46:55,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:55,985 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:55,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:56,012 INFO L225 Difference]: With dead ends: 11396 [2021-06-05 03:46:56,012 INFO L226 Difference]: Without dead ends: 10809 [2021-06-05 03:46:56,012 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 125.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:56,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10809 states. [2021-06-05 03:46:56,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10809 to 5137. [2021-06-05 03:46:56,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5137 states, 5136 states have (on average 4.73345015576324) internal successors, (24311), 5136 states have internal predecessors, (24311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:56,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5137 states to 5137 states and 24311 transitions. [2021-06-05 03:46:56,243 INFO L78 Accepts]: Start accepts. Automaton has 5137 states and 24311 transitions. Word has length 29 [2021-06-05 03:46:56,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:56,243 INFO L482 AbstractCegarLoop]: Abstraction has 5137 states and 24311 transitions. [2021-06-05 03:46:56,243 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:56,243 INFO L276 IsEmpty]: Start isEmpty. Operand 5137 states and 24311 transitions. [2021-06-05 03:46:56,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:56,252 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:56,252 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:56,252 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable958 [2021-06-05 03:46:56,252 INFO L430 AbstractCegarLoop]: === Iteration 960 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:56,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:56,252 INFO L82 PathProgramCache]: Analyzing trace with hash -11997275, now seen corresponding path program 955 times [2021-06-05 03:46:56,252 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:56,252 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807591696] [2021-06-05 03:46:56,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:56,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:56,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:56,355 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:56,355 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807591696] [2021-06-05 03:46:56,355 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807591696] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:56,355 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:56,355 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:56,355 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940848458] [2021-06-05 03:46:56,355 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:56,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:56,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:56,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:56,356 INFO L87 Difference]: Start difference. First operand 5137 states and 24311 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:56,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:56,474 INFO L93 Difference]: Finished difference Result 11793 states and 52840 transitions. [2021-06-05 03:46:56,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:56,474 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:56,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:56,502 INFO L225 Difference]: With dead ends: 11793 [2021-06-05 03:46:56,502 INFO L226 Difference]: Without dead ends: 11316 [2021-06-05 03:46:56,502 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 127.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:56,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11316 states. [2021-06-05 03:46:56,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11316 to 5251. [2021-06-05 03:46:56,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5251 states, 5250 states have (on average 4.723047619047619) internal successors, (24796), 5250 states have internal predecessors, (24796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:56,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5251 states to 5251 states and 24796 transitions. [2021-06-05 03:46:56,733 INFO L78 Accepts]: Start accepts. Automaton has 5251 states and 24796 transitions. Word has length 29 [2021-06-05 03:46:56,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:56,733 INFO L482 AbstractCegarLoop]: Abstraction has 5251 states and 24796 transitions. [2021-06-05 03:46:56,733 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:56,733 INFO L276 IsEmpty]: Start isEmpty. Operand 5251 states and 24796 transitions. [2021-06-05 03:46:56,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:56,741 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:56,741 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:56,741 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable959 [2021-06-05 03:46:56,742 INFO L430 AbstractCegarLoop]: === Iteration 961 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:56,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:56,742 INFO L82 PathProgramCache]: Analyzing trace with hash -218805241, now seen corresponding path program 956 times [2021-06-05 03:46:56,742 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:56,742 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774605890] [2021-06-05 03:46:56,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:56,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:56,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:56,843 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:56,843 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774605890] [2021-06-05 03:46:56,844 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774605890] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:56,844 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:56,844 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:56,844 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671139542] [2021-06-05 03:46:56,844 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:56,844 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:56,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:56,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:56,844 INFO L87 Difference]: Start difference. First operand 5251 states and 24796 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:56,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:56,956 INFO L93 Difference]: Finished difference Result 11791 states and 52757 transitions. [2021-06-05 03:46:56,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:56,956 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:56,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:56,984 INFO L225 Difference]: With dead ends: 11791 [2021-06-05 03:46:56,984 INFO L226 Difference]: Without dead ends: 11238 [2021-06-05 03:46:56,984 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 126.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:57,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11238 states. [2021-06-05 03:46:57,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11238 to 5173. [2021-06-05 03:46:57,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5173 states, 5172 states have (on average 4.730665119876257) internal successors, (24467), 5172 states have internal predecessors, (24467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:57,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5173 states to 5173 states and 24467 transitions. [2021-06-05 03:46:57,214 INFO L78 Accepts]: Start accepts. Automaton has 5173 states and 24467 transitions. Word has length 29 [2021-06-05 03:46:57,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:57,214 INFO L482 AbstractCegarLoop]: Abstraction has 5173 states and 24467 transitions. [2021-06-05 03:46:57,214 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:57,214 INFO L276 IsEmpty]: Start isEmpty. Operand 5173 states and 24467 transitions. [2021-06-05 03:46:57,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:57,223 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:57,223 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:57,223 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable960 [2021-06-05 03:46:57,223 INFO L430 AbstractCegarLoop]: === Iteration 962 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:57,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:57,223 INFO L82 PathProgramCache]: Analyzing trace with hash -1185956985, now seen corresponding path program 957 times [2021-06-05 03:46:57,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:57,223 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556123652] [2021-06-05 03:46:57,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:57,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:57,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:57,337 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:57,337 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556123652] [2021-06-05 03:46:57,337 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556123652] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:57,337 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:57,337 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:57,337 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80018896] [2021-06-05 03:46:57,338 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:57,338 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:57,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:57,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:57,338 INFO L87 Difference]: Start difference. First operand 5173 states and 24467 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:57,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:57,452 INFO L93 Difference]: Finished difference Result 11617 states and 52072 transitions. [2021-06-05 03:46:57,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:57,452 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:57,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:57,479 INFO L225 Difference]: With dead ends: 11617 [2021-06-05 03:46:57,479 INFO L226 Difference]: Without dead ends: 11140 [2021-06-05 03:46:57,479 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 139.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:57,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11140 states. [2021-06-05 03:46:57,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11140 to 5245. [2021-06-05 03:46:57,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5245 states, 5244 states have (on average 4.71834477498093) internal successors, (24743), 5244 states have internal predecessors, (24743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:57,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5245 states to 5245 states and 24743 transitions. [2021-06-05 03:46:57,709 INFO L78 Accepts]: Start accepts. Automaton has 5245 states and 24743 transitions. Word has length 29 [2021-06-05 03:46:57,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:57,709 INFO L482 AbstractCegarLoop]: Abstraction has 5245 states and 24743 transitions. [2021-06-05 03:46:57,709 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:57,709 INFO L276 IsEmpty]: Start isEmpty. Operand 5245 states and 24743 transitions. [2021-06-05 03:46:57,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:57,718 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:57,718 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:57,718 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable961 [2021-06-05 03:46:57,718 INFO L430 AbstractCegarLoop]: === Iteration 963 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:57,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:57,718 INFO L82 PathProgramCache]: Analyzing trace with hash 1870707463, now seen corresponding path program 958 times [2021-06-05 03:46:57,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:57,718 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514750882] [2021-06-05 03:46:57,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:57,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:57,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:57,832 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:57,832 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514750882] [2021-06-05 03:46:57,832 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514750882] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:57,832 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:57,832 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:57,832 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384668371] [2021-06-05 03:46:57,832 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:57,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:57,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:57,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:57,832 INFO L87 Difference]: Start difference. First operand 5245 states and 24743 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:57,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:57,942 INFO L93 Difference]: Finished difference Result 11283 states and 50770 transitions. [2021-06-05 03:46:57,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:57,943 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:57,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:57,969 INFO L225 Difference]: With dead ends: 11283 [2021-06-05 03:46:57,969 INFO L226 Difference]: Without dead ends: 10748 [2021-06-05 03:46:57,969 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 137.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:58,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10748 states. [2021-06-05 03:46:58,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10748 to 5173. [2021-06-05 03:46:58,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5173 states, 5172 states have (on average 4.723704563031709) internal successors, (24431), 5172 states have internal predecessors, (24431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:58,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5173 states to 5173 states and 24431 transitions. [2021-06-05 03:46:58,193 INFO L78 Accepts]: Start accepts. Automaton has 5173 states and 24431 transitions. Word has length 29 [2021-06-05 03:46:58,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:58,193 INFO L482 AbstractCegarLoop]: Abstraction has 5173 states and 24431 transitions. [2021-06-05 03:46:58,193 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:58,193 INFO L276 IsEmpty]: Start isEmpty. Operand 5173 states and 24431 transitions. [2021-06-05 03:46:58,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:58,201 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:58,201 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:58,202 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable962 [2021-06-05 03:46:58,202 INFO L430 AbstractCegarLoop]: === Iteration 964 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:58,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:58,202 INFO L82 PathProgramCache]: Analyzing trace with hash 1516087017, now seen corresponding path program 959 times [2021-06-05 03:46:58,202 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:58,202 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545046935] [2021-06-05 03:46:58,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:58,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:58,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:58,304 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:58,304 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545046935] [2021-06-05 03:46:58,305 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545046935] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:58,305 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:58,305 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:58,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241160289] [2021-06-05 03:46:58,305 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:58,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:58,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:58,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:58,305 INFO L87 Difference]: Start difference. First operand 5173 states and 24431 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:58,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:58,419 INFO L93 Difference]: Finished difference Result 11615 states and 52031 transitions. [2021-06-05 03:46:58,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:58,419 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:58,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:58,447 INFO L225 Difference]: With dead ends: 11615 [2021-06-05 03:46:58,448 INFO L226 Difference]: Without dead ends: 11140 [2021-06-05 03:46:58,448 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:58,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11140 states. [2021-06-05 03:46:58,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11140 to 5245. [2021-06-05 03:46:58,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5245 states, 5244 states have (on average 4.711479786422578) internal successors, (24707), 5244 states have internal predecessors, (24707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:58,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5245 states to 5245 states and 24707 transitions. [2021-06-05 03:46:58,678 INFO L78 Accepts]: Start accepts. Automaton has 5245 states and 24707 transitions. Word has length 29 [2021-06-05 03:46:58,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:58,678 INFO L482 AbstractCegarLoop]: Abstraction has 5245 states and 24707 transitions. [2021-06-05 03:46:58,678 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:58,678 INFO L276 IsEmpty]: Start isEmpty. Operand 5245 states and 24707 transitions. [2021-06-05 03:46:58,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:58,687 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:58,687 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:58,687 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable963 [2021-06-05 03:46:58,687 INFO L430 AbstractCegarLoop]: === Iteration 965 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:58,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:58,687 INFO L82 PathProgramCache]: Analyzing trace with hash -599992633, now seen corresponding path program 960 times [2021-06-05 03:46:58,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:58,687 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65788310] [2021-06-05 03:46:58,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:58,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:58,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:58,790 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:58,790 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65788310] [2021-06-05 03:46:58,790 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65788310] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:58,790 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:58,790 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:58,790 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790904676] [2021-06-05 03:46:58,790 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:58,790 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:58,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:58,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:58,790 INFO L87 Difference]: Start difference. First operand 5245 states and 24707 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:58,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:58,905 INFO L93 Difference]: Finished difference Result 11283 states and 50734 transitions. [2021-06-05 03:46:58,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:58,906 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:58,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:58,933 INFO L225 Difference]: With dead ends: 11283 [2021-06-05 03:46:58,933 INFO L226 Difference]: Without dead ends: 10652 [2021-06-05 03:46:58,933 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 126.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:59,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10652 states. [2021-06-05 03:46:59,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10652 to 5077. [2021-06-05 03:46:59,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5077 states, 5076 states have (on average 4.7563041765169425) internal successors, (24143), 5076 states have internal predecessors, (24143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:59,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5077 states to 5077 states and 24143 transitions. [2021-06-05 03:46:59,158 INFO L78 Accepts]: Start accepts. Automaton has 5077 states and 24143 transitions. Word has length 29 [2021-06-05 03:46:59,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:59,158 INFO L482 AbstractCegarLoop]: Abstraction has 5077 states and 24143 transitions. [2021-06-05 03:46:59,158 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:59,158 INFO L276 IsEmpty]: Start isEmpty. Operand 5077 states and 24143 transitions. [2021-06-05 03:46:59,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:59,166 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:59,166 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:59,166 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable964 [2021-06-05 03:46:59,166 INFO L430 AbstractCegarLoop]: === Iteration 966 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:59,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:59,166 INFO L82 PathProgramCache]: Analyzing trace with hash 721261801, now seen corresponding path program 961 times [2021-06-05 03:46:59,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:59,167 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858974658] [2021-06-05 03:46:59,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:59,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:59,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:59,296 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:59,296 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858974658] [2021-06-05 03:46:59,296 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858974658] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:59,296 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:59,296 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:59,296 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69468843] [2021-06-05 03:46:59,296 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:59,296 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:59,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:59,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:59,296 INFO L87 Difference]: Start difference. First operand 5077 states and 24143 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:59,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:59,423 INFO L93 Difference]: Finished difference Result 11367 states and 50697 transitions. [2021-06-05 03:46:59,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:59,423 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:59,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:59,450 INFO L225 Difference]: With dead ends: 11367 [2021-06-05 03:46:59,450 INFO L226 Difference]: Without dead ends: 10952 [2021-06-05 03:46:59,450 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 153.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:46:59,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10952 states. [2021-06-05 03:46:59,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10952 to 5249. [2021-06-05 03:46:59,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5249 states, 5248 states have (on average 4.749047256097561) internal successors, (24923), 5248 states have internal predecessors, (24923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:59,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5249 states to 5249 states and 24923 transitions. [2021-06-05 03:46:59,678 INFO L78 Accepts]: Start accepts. Automaton has 5249 states and 24923 transitions. Word has length 29 [2021-06-05 03:46:59,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:46:59,678 INFO L482 AbstractCegarLoop]: Abstraction has 5249 states and 24923 transitions. [2021-06-05 03:46:59,678 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:59,678 INFO L276 IsEmpty]: Start isEmpty. Operand 5249 states and 24923 transitions. [2021-06-05 03:46:59,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:46:59,686 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:46:59,687 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:46:59,687 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable965 [2021-06-05 03:46:59,687 INFO L430 AbstractCegarLoop]: === Iteration 967 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:46:59,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:46:59,687 INFO L82 PathProgramCache]: Analyzing trace with hash -1818884887, now seen corresponding path program 962 times [2021-06-05 03:46:59,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:46:59,687 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500795839] [2021-06-05 03:46:59,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:46:59,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:46:59,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:46:59,816 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:46:59,816 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500795839] [2021-06-05 03:46:59,816 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500795839] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:46:59,816 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:46:59,817 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:46:59,817 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280357900] [2021-06-05 03:46:59,817 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:46:59,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:46:59,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:46:59,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:46:59,817 INFO L87 Difference]: Start difference. First operand 5249 states and 24923 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:46:59,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:46:59,912 INFO L93 Difference]: Finished difference Result 11494 states and 51176 transitions. [2021-06-05 03:46:59,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:46:59,913 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:46:59,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:46:59,939 INFO L225 Difference]: With dead ends: 11494 [2021-06-05 03:46:59,939 INFO L226 Difference]: Without dead ends: 10872 [2021-06-05 03:46:59,939 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 136.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:00,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10872 states. [2021-06-05 03:47:00,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10872 to 5169. [2021-06-05 03:47:00,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5169 states, 5168 states have (on average 4.752902476780186) internal successors, (24563), 5168 states have internal predecessors, (24563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:00,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5169 states to 5169 states and 24563 transitions. [2021-06-05 03:47:00,166 INFO L78 Accepts]: Start accepts. Automaton has 5169 states and 24563 transitions. Word has length 29 [2021-06-05 03:47:00,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:00,166 INFO L482 AbstractCegarLoop]: Abstraction has 5169 states and 24563 transitions. [2021-06-05 03:47:00,166 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:00,166 INFO L276 IsEmpty]: Start isEmpty. Operand 5169 states and 24563 transitions. [2021-06-05 03:47:00,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:00,175 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:00,175 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:00,175 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable966 [2021-06-05 03:47:00,175 INFO L430 AbstractCegarLoop]: === Iteration 968 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:00,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:00,175 INFO L82 PathProgramCache]: Analyzing trace with hash 501459945, now seen corresponding path program 963 times [2021-06-05 03:47:00,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:00,175 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417769875] [2021-06-05 03:47:00,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:00,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:00,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:00,307 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:00,307 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417769875] [2021-06-05 03:47:00,307 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417769875] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:00,307 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:00,307 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:00,307 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002999243] [2021-06-05 03:47:00,307 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:00,307 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:00,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:00,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:00,307 INFO L87 Difference]: Start difference. First operand 5169 states and 24563 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:00,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:00,420 INFO L93 Difference]: Finished difference Result 11270 states and 50255 transitions. [2021-06-05 03:47:00,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:00,420 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:00,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:00,447 INFO L225 Difference]: With dead ends: 11270 [2021-06-05 03:47:00,447 INFO L226 Difference]: Without dead ends: 10855 [2021-06-05 03:47:00,447 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 155.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:00,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10855 states. [2021-06-05 03:47:00,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10855 to 5217. [2021-06-05 03:47:00,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5217 states, 5216 states have (on average 4.742906441717792) internal successors, (24739), 5216 states have internal predecessors, (24739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:00,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5217 states to 5217 states and 24739 transitions. [2021-06-05 03:47:00,683 INFO L78 Accepts]: Start accepts. Automaton has 5217 states and 24739 transitions. Word has length 29 [2021-06-05 03:47:00,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:00,683 INFO L482 AbstractCegarLoop]: Abstraction has 5217 states and 24739 transitions. [2021-06-05 03:47:00,683 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:00,683 INFO L276 IsEmpty]: Start isEmpty. Operand 5217 states and 24739 transitions. [2021-06-05 03:47:00,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:00,692 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:00,692 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:00,692 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable967 [2021-06-05 03:47:00,692 INFO L430 AbstractCegarLoop]: === Iteration 969 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:00,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:00,692 INFO L82 PathProgramCache]: Analyzing trace with hash 1218122891, now seen corresponding path program 964 times [2021-06-05 03:47:00,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:00,692 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264068686] [2021-06-05 03:47:00,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:00,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:00,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:00,824 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:00,824 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264068686] [2021-06-05 03:47:00,824 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264068686] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:00,824 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:00,824 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:00,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36924152] [2021-06-05 03:47:00,824 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:00,824 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:00,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:00,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:00,825 INFO L87 Difference]: Start difference. First operand 5217 states and 24739 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:00,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:00,942 INFO L93 Difference]: Finished difference Result 11332 states and 50476 transitions. [2021-06-05 03:47:00,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:00,942 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:00,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:00,969 INFO L225 Difference]: With dead ends: 11332 [2021-06-05 03:47:00,969 INFO L226 Difference]: Without dead ends: 10807 [2021-06-05 03:47:00,969 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 156.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:01,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10807 states. [2021-06-05 03:47:01,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10807 to 5169. [2021-06-05 03:47:01,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5169 states, 5168 states have (on average 4.748258513931889) internal successors, (24539), 5168 states have internal predecessors, (24539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:01,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5169 states to 5169 states and 24539 transitions. [2021-06-05 03:47:01,201 INFO L78 Accepts]: Start accepts. Automaton has 5169 states and 24539 transitions. Word has length 29 [2021-06-05 03:47:01,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:01,201 INFO L482 AbstractCegarLoop]: Abstraction has 5169 states and 24539 transitions. [2021-06-05 03:47:01,201 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:01,201 INFO L276 IsEmpty]: Start isEmpty. Operand 5169 states and 24539 transitions. [2021-06-05 03:47:01,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:01,209 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:01,209 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:01,209 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable968 [2021-06-05 03:47:01,209 INFO L430 AbstractCegarLoop]: === Iteration 970 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:01,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:01,210 INFO L82 PathProgramCache]: Analyzing trace with hash -993618805, now seen corresponding path program 965 times [2021-06-05 03:47:01,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:01,210 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224256691] [2021-06-05 03:47:01,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:01,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:01,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:01,345 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:01,345 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224256691] [2021-06-05 03:47:01,345 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224256691] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:01,345 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:01,346 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:01,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514751748] [2021-06-05 03:47:01,346 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:01,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:01,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:01,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:01,346 INFO L87 Difference]: Start difference. First operand 5169 states and 24539 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:01,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:01,447 INFO L93 Difference]: Finished difference Result 11619 states and 51691 transitions. [2021-06-05 03:47:01,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:01,448 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:01,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:01,475 INFO L225 Difference]: With dead ends: 11619 [2021-06-05 03:47:01,475 INFO L226 Difference]: Without dead ends: 11077 [2021-06-05 03:47:01,475 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 138.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:01,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11077 states. [2021-06-05 03:47:01,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11077 to 5312. [2021-06-05 03:47:01,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5312 states, 5311 states have (on average 4.718132178497458) internal successors, (25058), 5311 states have internal predecessors, (25058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:01,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5312 states to 5312 states and 25058 transitions. [2021-06-05 03:47:01,708 INFO L78 Accepts]: Start accepts. Automaton has 5312 states and 25058 transitions. Word has length 29 [2021-06-05 03:47:01,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:01,708 INFO L482 AbstractCegarLoop]: Abstraction has 5312 states and 25058 transitions. [2021-06-05 03:47:01,708 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:01,708 INFO L276 IsEmpty]: Start isEmpty. Operand 5312 states and 25058 transitions. [2021-06-05 03:47:01,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:01,717 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:01,717 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:01,717 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable969 [2021-06-05 03:47:01,717 INFO L430 AbstractCegarLoop]: === Iteration 971 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:01,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:01,717 INFO L82 PathProgramCache]: Analyzing trace with hash 1258011497, now seen corresponding path program 966 times [2021-06-05 03:47:01,717 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:01,717 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975213850] [2021-06-05 03:47:01,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:01,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:01,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:01,840 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:01,840 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975213850] [2021-06-05 03:47:01,840 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975213850] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:01,840 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:01,840 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:01,840 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114502322] [2021-06-05 03:47:01,840 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:01,840 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:01,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:01,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:01,840 INFO L87 Difference]: Start difference. First operand 5312 states and 25058 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:01,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:01,959 INFO L93 Difference]: Finished difference Result 11554 states and 51322 transitions. [2021-06-05 03:47:01,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:01,959 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:01,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:01,986 INFO L225 Difference]: With dead ends: 11554 [2021-06-05 03:47:01,986 INFO L226 Difference]: Without dead ends: 10878 [2021-06-05 03:47:01,987 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 146.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:02,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10878 states. [2021-06-05 03:47:02,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10878 to 5113. [2021-06-05 03:47:02,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5113 states, 5112 states have (on average 4.755672926447574) internal successors, (24311), 5112 states have internal predecessors, (24311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:02,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5113 states to 5113 states and 24311 transitions. [2021-06-05 03:47:02,217 INFO L78 Accepts]: Start accepts. Automaton has 5113 states and 24311 transitions. Word has length 29 [2021-06-05 03:47:02,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:02,218 INFO L482 AbstractCegarLoop]: Abstraction has 5113 states and 24311 transitions. [2021-06-05 03:47:02,218 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:02,218 INFO L276 IsEmpty]: Start isEmpty. Operand 5113 states and 24311 transitions. [2021-06-05 03:47:02,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:02,226 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:02,226 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:02,226 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable970 [2021-06-05 03:47:02,226 INFO L430 AbstractCegarLoop]: === Iteration 972 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:02,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:02,226 INFO L82 PathProgramCache]: Analyzing trace with hash -87271063, now seen corresponding path program 967 times [2021-06-05 03:47:02,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:02,227 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055761040] [2021-06-05 03:47:02,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:02,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:02,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:02,357 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:02,357 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055761040] [2021-06-05 03:47:02,357 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055761040] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:02,357 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:02,357 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:02,357 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193333410] [2021-06-05 03:47:02,357 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:02,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:02,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:02,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:02,357 INFO L87 Difference]: Start difference. First operand 5113 states and 24311 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:02,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:02,476 INFO L93 Difference]: Finished difference Result 11202 states and 49954 transitions. [2021-06-05 03:47:02,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:02,476 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:02,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:02,503 INFO L225 Difference]: With dead ends: 11202 [2021-06-05 03:47:02,503 INFO L226 Difference]: Without dead ends: 10787 [2021-06-05 03:47:02,503 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 154.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:02,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10787 states. [2021-06-05 03:47:02,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10787 to 5225. [2021-06-05 03:47:02,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5225 states, 5224 states have (on average 4.745597243491577) internal successors, (24791), 5224 states have internal predecessors, (24791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:02,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5225 states to 5225 states and 24791 transitions. [2021-06-05 03:47:02,808 INFO L78 Accepts]: Start accepts. Automaton has 5225 states and 24791 transitions. Word has length 29 [2021-06-05 03:47:02,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:02,808 INFO L482 AbstractCegarLoop]: Abstraction has 5225 states and 24791 transitions. [2021-06-05 03:47:02,808 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:02,808 INFO L276 IsEmpty]: Start isEmpty. Operand 5225 states and 24791 transitions. [2021-06-05 03:47:02,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:02,817 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:02,817 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:02,817 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable971 [2021-06-05 03:47:02,817 INFO L430 AbstractCegarLoop]: === Iteration 973 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:02,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:02,818 INFO L82 PathProgramCache]: Analyzing trace with hash 1667549545, now seen corresponding path program 968 times [2021-06-05 03:47:02,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:02,818 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814142291] [2021-06-05 03:47:02,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:02,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:02,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:02,946 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:02,946 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814142291] [2021-06-05 03:47:02,946 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814142291] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:02,946 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:02,946 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:02,946 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012393523] [2021-06-05 03:47:02,946 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:02,946 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:02,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:02,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:02,947 INFO L87 Difference]: Start difference. First operand 5225 states and 24791 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:03,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:03,044 INFO L93 Difference]: Finished difference Result 11329 states and 50433 transitions. [2021-06-05 03:47:03,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:03,045 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:03,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:03,072 INFO L225 Difference]: With dead ends: 11329 [2021-06-05 03:47:03,072 INFO L226 Difference]: Without dead ends: 10707 [2021-06-05 03:47:03,072 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 135.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:03,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10707 states. [2021-06-05 03:47:03,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10707 to 5145. [2021-06-05 03:47:03,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5145 states, 5144 states have (on average 4.75097200622084) internal successors, (24439), 5144 states have internal predecessors, (24439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:03,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5145 states to 5145 states and 24439 transitions. [2021-06-05 03:47:03,305 INFO L78 Accepts]: Start accepts. Automaton has 5145 states and 24439 transitions. Word has length 29 [2021-06-05 03:47:03,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:03,305 INFO L482 AbstractCegarLoop]: Abstraction has 5145 states and 24439 transitions. [2021-06-05 03:47:03,305 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:03,305 INFO L276 IsEmpty]: Start isEmpty. Operand 5145 states and 24439 transitions. [2021-06-05 03:47:03,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:03,314 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:03,314 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:03,314 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable972 [2021-06-05 03:47:03,314 INFO L430 AbstractCegarLoop]: === Iteration 974 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:03,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:03,314 INFO L82 PathProgramCache]: Analyzing trace with hash -2483065, now seen corresponding path program 969 times [2021-06-05 03:47:03,314 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:03,314 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384085078] [2021-06-05 03:47:03,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:03,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:03,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:03,436 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:03,436 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384085078] [2021-06-05 03:47:03,436 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384085078] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:03,436 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:03,436 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:03,436 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904434042] [2021-06-05 03:47:03,436 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:03,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:03,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:03,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:03,436 INFO L87 Difference]: Start difference. First operand 5145 states and 24439 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:03,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:03,558 INFO L93 Difference]: Finished difference Result 11027 states and 49171 transitions. [2021-06-05 03:47:03,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:03,559 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:03,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:03,586 INFO L225 Difference]: With dead ends: 11027 [2021-06-05 03:47:03,586 INFO L226 Difference]: Without dead ends: 10612 [2021-06-05 03:47:03,586 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 149.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:03,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10612 states. [2021-06-05 03:47:03,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10612 to 5177. [2021-06-05 03:47:03,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5177 states, 5176 states have (on average 4.743238021638331) internal successors, (24551), 5176 states have internal predecessors, (24551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:03,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5177 states to 5177 states and 24551 transitions. [2021-06-05 03:47:03,822 INFO L78 Accepts]: Start accepts. Automaton has 5177 states and 24551 transitions. Word has length 29 [2021-06-05 03:47:03,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:03,822 INFO L482 AbstractCegarLoop]: Abstraction has 5177 states and 24551 transitions. [2021-06-05 03:47:03,823 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:03,823 INFO L276 IsEmpty]: Start isEmpty. Operand 5177 states and 24551 transitions. [2021-06-05 03:47:03,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:03,832 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:03,832 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:03,832 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable973 [2021-06-05 03:47:03,832 INFO L430 AbstractCegarLoop]: === Iteration 975 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:03,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:03,832 INFO L82 PathProgramCache]: Analyzing trace with hash 1890363237, now seen corresponding path program 970 times [2021-06-05 03:47:03,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:03,832 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744964768] [2021-06-05 03:47:03,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:03,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:03,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:03,970 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:03,970 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744964768] [2021-06-05 03:47:03,970 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744964768] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:03,970 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:03,970 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:03,970 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929608756] [2021-06-05 03:47:03,970 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:03,970 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:03,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:03,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:03,971 INFO L87 Difference]: Start difference. First operand 5177 states and 24551 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:04,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:04,071 INFO L93 Difference]: Finished difference Result 11027 states and 49139 transitions. [2021-06-05 03:47:04,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:04,072 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:04,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:04,099 INFO L225 Difference]: With dead ends: 11027 [2021-06-05 03:47:04,099 INFO L226 Difference]: Without dead ends: 10580 [2021-06-05 03:47:04,099 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 140.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:04,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10580 states. [2021-06-05 03:47:04,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10580 to 5145. [2021-06-05 03:47:04,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5145 states, 5144 states have (on average 4.747861586314152) internal successors, (24423), 5144 states have internal predecessors, (24423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:04,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5145 states to 5145 states and 24423 transitions. [2021-06-05 03:47:04,330 INFO L78 Accepts]: Start accepts. Automaton has 5145 states and 24423 transitions. Word has length 29 [2021-06-05 03:47:04,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:04,330 INFO L482 AbstractCegarLoop]: Abstraction has 5145 states and 24423 transitions. [2021-06-05 03:47:04,331 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:04,331 INFO L276 IsEmpty]: Start isEmpty. Operand 5145 states and 24423 transitions. [2021-06-05 03:47:04,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:04,339 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:04,339 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:04,339 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable974 [2021-06-05 03:47:04,339 INFO L430 AbstractCegarLoop]: === Iteration 976 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:04,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:04,339 INFO L82 PathProgramCache]: Analyzing trace with hash -1683000509, now seen corresponding path program 971 times [2021-06-05 03:47:04,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:04,340 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912112930] [2021-06-05 03:47:04,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:04,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:04,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:04,468 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:04,468 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912112930] [2021-06-05 03:47:04,469 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912112930] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:04,469 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:04,469 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:04,469 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704364667] [2021-06-05 03:47:04,469 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:04,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:04,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:04,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:04,469 INFO L87 Difference]: Start difference. First operand 5145 states and 24423 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:04,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:04,574 INFO L93 Difference]: Finished difference Result 11329 states and 50433 transitions. [2021-06-05 03:47:04,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:04,574 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:04,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:04,601 INFO L225 Difference]: With dead ends: 11329 [2021-06-05 03:47:04,601 INFO L226 Difference]: Without dead ends: 10787 [2021-06-05 03:47:04,601 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 135.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:04,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10787 states. [2021-06-05 03:47:04,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10787 to 5225. [2021-06-05 03:47:04,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5225 states, 5224 states have (on average 4.730283307810107) internal successors, (24711), 5224 states have internal predecessors, (24711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:04,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5225 states to 5225 states and 24711 transitions. [2021-06-05 03:47:04,838 INFO L78 Accepts]: Start accepts. Automaton has 5225 states and 24711 transitions. Word has length 29 [2021-06-05 03:47:04,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:04,838 INFO L482 AbstractCegarLoop]: Abstraction has 5225 states and 24711 transitions. [2021-06-05 03:47:04,838 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:04,838 INFO L276 IsEmpty]: Start isEmpty. Operand 5225 states and 24711 transitions. [2021-06-05 03:47:04,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:04,847 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:04,847 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:04,847 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable975 [2021-06-05 03:47:04,848 INFO L430 AbstractCegarLoop]: === Iteration 977 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:04,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:04,848 INFO L82 PathProgramCache]: Analyzing trace with hash -1889808475, now seen corresponding path program 972 times [2021-06-05 03:47:04,848 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:04,848 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603335997] [2021-06-05 03:47:04,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:04,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:04,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:04,977 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:04,977 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603335997] [2021-06-05 03:47:04,977 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603335997] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:04,977 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:04,977 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:04,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444359401] [2021-06-05 03:47:04,977 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:04,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:04,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:04,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:04,978 INFO L87 Difference]: Start difference. First operand 5225 states and 24711 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:05,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:05,089 INFO L93 Difference]: Finished difference Result 11202 states and 49826 transitions. [2021-06-05 03:47:05,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:05,089 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:05,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:05,117 INFO L225 Difference]: With dead ends: 11202 [2021-06-05 03:47:05,117 INFO L226 Difference]: Without dead ends: 10675 [2021-06-05 03:47:05,117 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 135.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:05,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10675 states. [2021-06-05 03:47:05,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10675 to 5113. [2021-06-05 03:47:05,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5113 states, 5112 states have (on average 4.752543035993741) internal successors, (24295), 5112 states have internal predecessors, (24295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:05,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5113 states to 5113 states and 24295 transitions. [2021-06-05 03:47:05,355 INFO L78 Accepts]: Start accepts. Automaton has 5113 states and 24295 transitions. Word has length 29 [2021-06-05 03:47:05,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:05,355 INFO L482 AbstractCegarLoop]: Abstraction has 5113 states and 24295 transitions. [2021-06-05 03:47:05,355 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:05,355 INFO L276 IsEmpty]: Start isEmpty. Operand 5113 states and 24295 transitions. [2021-06-05 03:47:05,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:05,364 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:05,364 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:05,364 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable976 [2021-06-05 03:47:05,365 INFO L430 AbstractCegarLoop]: === Iteration 978 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:05,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:05,365 INFO L82 PathProgramCache]: Analyzing trace with hash 1183671175, now seen corresponding path program 973 times [2021-06-05 03:47:05,365 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:05,365 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36241833] [2021-06-05 03:47:05,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:05,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:05,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:05,497 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:05,497 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36241833] [2021-06-05 03:47:05,497 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36241833] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:05,497 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:05,497 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:05,497 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168915307] [2021-06-05 03:47:05,497 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:05,498 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:05,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:05,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:05,498 INFO L87 Difference]: Start difference. First operand 5113 states and 24295 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:05,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:05,619 INFO L93 Difference]: Finished difference Result 10960 states and 48910 transitions. [2021-06-05 03:47:05,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:05,619 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:05,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:05,646 INFO L225 Difference]: With dead ends: 10960 [2021-06-05 03:47:05,647 INFO L226 Difference]: Without dead ends: 10545 [2021-06-05 03:47:05,647 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 156.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:05,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10545 states. [2021-06-05 03:47:05,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10545 to 5177. [2021-06-05 03:47:05,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5177 states, 5176 states have (on average 4.743238021638331) internal successors, (24551), 5176 states have internal predecessors, (24551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:05,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5177 states to 5177 states and 24551 transitions. [2021-06-05 03:47:05,881 INFO L78 Accepts]: Start accepts. Automaton has 5177 states and 24551 transitions. Word has length 29 [2021-06-05 03:47:05,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:05,881 INFO L482 AbstractCegarLoop]: Abstraction has 5177 states and 24551 transitions. [2021-06-05 03:47:05,881 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:05,881 INFO L276 IsEmpty]: Start isEmpty. Operand 5177 states and 24551 transitions. [2021-06-05 03:47:05,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:05,890 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:05,890 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:05,891 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable977 [2021-06-05 03:47:05,891 INFO L430 AbstractCegarLoop]: === Iteration 979 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:05,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:05,891 INFO L82 PathProgramCache]: Analyzing trace with hash 1900334121, now seen corresponding path program 974 times [2021-06-05 03:47:05,891 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:05,891 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925894921] [2021-06-05 03:47:05,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:05,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:06,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:06,025 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:06,025 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925894921] [2021-06-05 03:47:06,025 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925894921] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:06,025 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:06,025 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:06,025 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853555235] [2021-06-05 03:47:06,025 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:06,025 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:06,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:06,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:06,025 INFO L87 Difference]: Start difference. First operand 5177 states and 24551 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:06,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:06,153 INFO L93 Difference]: Finished difference Result 11022 states and 49131 transitions. [2021-06-05 03:47:06,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:06,153 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:06,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:06,181 INFO L225 Difference]: With dead ends: 11022 [2021-06-05 03:47:06,181 INFO L226 Difference]: Without dead ends: 10497 [2021-06-05 03:47:06,181 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 157.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:06,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10497 states. [2021-06-05 03:47:06,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10497 to 5129. [2021-06-05 03:47:06,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5129 states, 5128 states have (on average 4.750195007800312) internal successors, (24359), 5128 states have internal predecessors, (24359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:06,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5129 states to 5129 states and 24359 transitions. [2021-06-05 03:47:06,416 INFO L78 Accepts]: Start accepts. Automaton has 5129 states and 24359 transitions. Word has length 29 [2021-06-05 03:47:06,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:06,417 INFO L482 AbstractCegarLoop]: Abstraction has 5129 states and 24359 transitions. [2021-06-05 03:47:06,417 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:06,417 INFO L276 IsEmpty]: Start isEmpty. Operand 5129 states and 24359 transitions. [2021-06-05 03:47:06,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:06,426 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:06,426 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:06,426 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable978 [2021-06-05 03:47:06,426 INFO L430 AbstractCegarLoop]: === Iteration 980 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:06,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:06,426 INFO L82 PathProgramCache]: Analyzing trace with hash 702769129, now seen corresponding path program 975 times [2021-06-05 03:47:06,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:06,426 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422130442] [2021-06-05 03:47:06,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:06,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:06,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:06,549 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:06,549 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422130442] [2021-06-05 03:47:06,549 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422130442] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:06,549 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:06,549 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:06,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546378013] [2021-06-05 03:47:06,549 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:06,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:06,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:06,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:06,550 INFO L87 Difference]: Start difference. First operand 5129 states and 24359 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:06,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:06,663 INFO L93 Difference]: Finished difference Result 10882 states and 48545 transitions. [2021-06-05 03:47:06,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:06,664 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:06,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:06,690 INFO L225 Difference]: With dead ends: 10882 [2021-06-05 03:47:06,690 INFO L226 Difference]: Without dead ends: 10467 [2021-06-05 03:47:06,690 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 146.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:06,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10467 states. [2021-06-05 03:47:06,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10467 to 5161. [2021-06-05 03:47:06,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.742441860465116) internal successors, (24471), 5160 states have internal predecessors, (24471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:06,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24471 transitions. [2021-06-05 03:47:06,924 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24471 transitions. Word has length 29 [2021-06-05 03:47:06,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:06,924 INFO L482 AbstractCegarLoop]: Abstraction has 5161 states and 24471 transitions. [2021-06-05 03:47:06,924 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:06,924 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24471 transitions. [2021-06-05 03:47:06,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:06,933 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:06,933 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:06,933 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable979 [2021-06-05 03:47:06,933 INFO L430 AbstractCegarLoop]: === Iteration 981 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:06,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:06,934 INFO L82 PathProgramCache]: Analyzing trace with hash 1114177125, now seen corresponding path program 976 times [2021-06-05 03:47:06,934 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:06,934 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672903238] [2021-06-05 03:47:06,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:06,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:07,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:07,058 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:07,058 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672903238] [2021-06-05 03:47:07,058 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672903238] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:07,058 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:07,058 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:07,058 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269409283] [2021-06-05 03:47:07,058 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:07,058 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:07,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:07,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:07,059 INFO L87 Difference]: Start difference. First operand 5161 states and 24471 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:07,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:07,158 INFO L93 Difference]: Finished difference Result 10882 states and 48513 transitions. [2021-06-05 03:47:07,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:07,159 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:07,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:07,184 INFO L225 Difference]: With dead ends: 10882 [2021-06-05 03:47:07,184 INFO L226 Difference]: Without dead ends: 10435 [2021-06-05 03:47:07,184 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 131.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:07,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10435 states. [2021-06-05 03:47:07,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10435 to 5129. [2021-06-05 03:47:07,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5129 states, 5128 states have (on average 4.74707488299532) internal successors, (24343), 5128 states have internal predecessors, (24343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:07,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5129 states to 5129 states and 24343 transitions. [2021-06-05 03:47:07,406 INFO L78 Accepts]: Start accepts. Automaton has 5129 states and 24343 transitions. Word has length 29 [2021-06-05 03:47:07,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:07,406 INFO L482 AbstractCegarLoop]: Abstraction has 5129 states and 24343 transitions. [2021-06-05 03:47:07,406 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:07,406 INFO L276 IsEmpty]: Start isEmpty. Operand 5129 states and 24343 transitions. [2021-06-05 03:47:07,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:07,415 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:07,415 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:07,415 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable980 [2021-06-05 03:47:07,415 INFO L430 AbstractCegarLoop]: === Iteration 982 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:07,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:07,415 INFO L82 PathProgramCache]: Analyzing trace with hash 1249872613, now seen corresponding path program 977 times [2021-06-05 03:47:07,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:07,415 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526767594] [2021-06-05 03:47:07,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:07,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:07,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:07,545 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:07,545 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526767594] [2021-06-05 03:47:07,545 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526767594] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:07,546 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:07,546 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:07,546 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837112996] [2021-06-05 03:47:07,546 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:07,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:07,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:07,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:07,546 INFO L87 Difference]: Start difference. First operand 5129 states and 24343 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:07,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:07,661 INFO L93 Difference]: Finished difference Result 11022 states and 49147 transitions. [2021-06-05 03:47:07,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:07,662 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:07,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:07,687 INFO L225 Difference]: With dead ends: 11022 [2021-06-05 03:47:07,687 INFO L226 Difference]: Without dead ends: 10545 [2021-06-05 03:47:07,688 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 155.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:07,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10545 states. [2021-06-05 03:47:07,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10545 to 5177. [2021-06-05 03:47:07,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5177 states, 5176 states have (on average 4.737055641421947) internal successors, (24519), 5176 states have internal predecessors, (24519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:07,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5177 states to 5177 states and 24519 transitions. [2021-06-05 03:47:07,913 INFO L78 Accepts]: Start accepts. Automaton has 5177 states and 24519 transitions. Word has length 29 [2021-06-05 03:47:07,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:07,913 INFO L482 AbstractCegarLoop]: Abstraction has 5177 states and 24519 transitions. [2021-06-05 03:47:07,913 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:07,913 INFO L276 IsEmpty]: Start isEmpty. Operand 5177 states and 24519 transitions. [2021-06-05 03:47:07,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:07,921 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:07,921 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:07,922 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable981 [2021-06-05 03:47:07,922 INFO L430 AbstractCegarLoop]: === Iteration 983 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:07,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:07,922 INFO L82 PathProgramCache]: Analyzing trace with hash -1964032057, now seen corresponding path program 978 times [2021-06-05 03:47:07,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:07,922 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600064087] [2021-06-05 03:47:07,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:07,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:08,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:08,071 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:08,072 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600064087] [2021-06-05 03:47:08,072 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600064087] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:08,072 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:08,072 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:08,072 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294299491] [2021-06-05 03:47:08,072 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:08,072 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:08,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:08,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:08,072 INFO L87 Difference]: Start difference. First operand 5177 states and 24519 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:08,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:08,188 INFO L93 Difference]: Finished difference Result 10960 states and 48830 transitions. [2021-06-05 03:47:08,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:08,188 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:08,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:08,214 INFO L225 Difference]: With dead ends: 10960 [2021-06-05 03:47:08,214 INFO L226 Difference]: Without dead ends: 10481 [2021-06-05 03:47:08,215 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 152.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:08,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10481 states. [2021-06-05 03:47:08,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10481 to 5113. [2021-06-05 03:47:08,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5113 states, 5112 states have (on average 4.750978090766823) internal successors, (24287), 5112 states have internal predecessors, (24287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:08,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5113 states to 5113 states and 24287 transitions. [2021-06-05 03:47:08,438 INFO L78 Accepts]: Start accepts. Automaton has 5113 states and 24287 transitions. Word has length 29 [2021-06-05 03:47:08,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:08,438 INFO L482 AbstractCegarLoop]: Abstraction has 5113 states and 24287 transitions. [2021-06-05 03:47:08,438 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:08,438 INFO L276 IsEmpty]: Start isEmpty. Operand 5113 states and 24287 transitions. [2021-06-05 03:47:08,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:08,447 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:08,447 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:08,447 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable982 [2021-06-05 03:47:08,447 INFO L430 AbstractCegarLoop]: === Iteration 984 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:08,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:08,447 INFO L82 PathProgramCache]: Analyzing trace with hash -437139645, now seen corresponding path program 979 times [2021-06-05 03:47:08,447 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:08,447 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167144278] [2021-06-05 03:47:08,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:08,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:08,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:08,570 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:08,570 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167144278] [2021-06-05 03:47:08,570 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167144278] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:08,570 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:08,570 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:08,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517858841] [2021-06-05 03:47:08,570 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:08,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:08,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:08,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:08,570 INFO L87 Difference]: Start difference. First operand 5113 states and 24287 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:08,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:08,684 INFO L93 Difference]: Finished difference Result 11619 states and 51707 transitions. [2021-06-05 03:47:08,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:08,684 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:08,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:08,711 INFO L225 Difference]: With dead ends: 11619 [2021-06-05 03:47:08,711 INFO L226 Difference]: Without dead ends: 11077 [2021-06-05 03:47:08,711 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 129.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:08,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11077 states. [2021-06-05 03:47:08,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11077 to 5312. [2021-06-05 03:47:08,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5312 states, 5311 states have (on average 4.721144793824139) internal successors, (25074), 5311 states have internal predecessors, (25074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:08,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5312 states to 5312 states and 25074 transitions. [2021-06-05 03:47:08,944 INFO L78 Accepts]: Start accepts. Automaton has 5312 states and 25074 transitions. Word has length 29 [2021-06-05 03:47:08,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:08,944 INFO L482 AbstractCegarLoop]: Abstraction has 5312 states and 25074 transitions. [2021-06-05 03:47:08,944 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:08,944 INFO L276 IsEmpty]: Start isEmpty. Operand 5312 states and 25074 transitions. [2021-06-05 03:47:08,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:08,953 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:08,953 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:08,953 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable983 [2021-06-05 03:47:08,953 INFO L430 AbstractCegarLoop]: === Iteration 985 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:08,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:08,953 INFO L82 PathProgramCache]: Analyzing trace with hash 643922981, now seen corresponding path program 980 times [2021-06-05 03:47:08,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:08,953 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724339468] [2021-06-05 03:47:08,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:08,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:09,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:09,075 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:09,075 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724339468] [2021-06-05 03:47:09,075 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724339468] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:09,075 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:09,075 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:09,075 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690294271] [2021-06-05 03:47:09,076 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:09,076 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:09,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:09,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:09,076 INFO L87 Difference]: Start difference. First operand 5312 states and 25074 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:09,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:09,183 INFO L93 Difference]: Finished difference Result 11554 states and 51338 transitions. [2021-06-05 03:47:09,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:09,184 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:09,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:09,209 INFO L225 Difference]: With dead ends: 11554 [2021-06-05 03:47:09,210 INFO L226 Difference]: Without dead ends: 10934 [2021-06-05 03:47:09,210 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 145.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:09,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10934 states. [2021-06-05 03:47:09,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10934 to 5169. [2021-06-05 03:47:09,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5169 states, 5168 states have (on average 4.740518575851393) internal successors, (24499), 5168 states have internal predecessors, (24499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:09,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5169 states to 5169 states and 24499 transitions. [2021-06-05 03:47:09,435 INFO L78 Accepts]: Start accepts. Automaton has 5169 states and 24499 transitions. Word has length 29 [2021-06-05 03:47:09,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:09,435 INFO L482 AbstractCegarLoop]: Abstraction has 5169 states and 24499 transitions. [2021-06-05 03:47:09,436 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:09,436 INFO L276 IsEmpty]: Start isEmpty. Operand 5169 states and 24499 transitions. [2021-06-05 03:47:09,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:09,444 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:09,444 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:09,444 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable984 [2021-06-05 03:47:09,444 INFO L430 AbstractCegarLoop]: === Iteration 986 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:09,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:09,445 INFO L82 PathProgramCache]: Analyzing trace with hash -918041691, now seen corresponding path program 981 times [2021-06-05 03:47:09,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:09,445 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397044012] [2021-06-05 03:47:09,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:09,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:09,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:09,576 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:09,576 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397044012] [2021-06-05 03:47:09,576 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397044012] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:09,576 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:09,576 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:09,576 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990309466] [2021-06-05 03:47:09,576 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:09,576 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:09,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:09,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:09,576 INFO L87 Difference]: Start difference. First operand 5169 states and 24499 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:09,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:09,670 INFO L93 Difference]: Finished difference Result 11494 states and 51120 transitions. [2021-06-05 03:47:09,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:09,670 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:09,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:09,698 INFO L225 Difference]: With dead ends: 11494 [2021-06-05 03:47:09,698 INFO L226 Difference]: Without dead ends: 10952 [2021-06-05 03:47:09,698 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 138.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:09,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10952 states. [2021-06-05 03:47:09,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10952 to 5249. [2021-06-05 03:47:09,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5249 states, 5248 states have (on average 4.723132621951219) internal successors, (24787), 5248 states have internal predecessors, (24787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:09,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5249 states to 5249 states and 24787 transitions. [2021-06-05 03:47:09,929 INFO L78 Accepts]: Start accepts. Automaton has 5249 states and 24787 transitions. Word has length 29 [2021-06-05 03:47:09,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:09,929 INFO L482 AbstractCegarLoop]: Abstraction has 5249 states and 24787 transitions. [2021-06-05 03:47:09,929 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:09,929 INFO L276 IsEmpty]: Start isEmpty. Operand 5249 states and 24787 transitions. [2021-06-05 03:47:09,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:09,938 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:09,938 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:09,938 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable985 [2021-06-05 03:47:09,938 INFO L430 AbstractCegarLoop]: === Iteration 987 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:09,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:09,938 INFO L82 PathProgramCache]: Analyzing trace with hash 1688679333, now seen corresponding path program 982 times [2021-06-05 03:47:09,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:09,938 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310266442] [2021-06-05 03:47:09,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:09,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:10,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:10,068 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:10,068 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310266442] [2021-06-05 03:47:10,068 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310266442] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:10,068 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:10,068 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:10,068 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854201834] [2021-06-05 03:47:10,069 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:10,069 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:10,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:10,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:10,069 INFO L87 Difference]: Start difference. First operand 5249 states and 24787 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:10,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:10,163 INFO L93 Difference]: Finished difference Result 11367 states and 50513 transitions. [2021-06-05 03:47:10,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:10,163 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:10,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:10,190 INFO L225 Difference]: With dead ends: 11367 [2021-06-05 03:47:10,190 INFO L226 Difference]: Without dead ends: 10872 [2021-06-05 03:47:10,190 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 137.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:10,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10872 states. [2021-06-05 03:47:10,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10872 to 5169. [2021-06-05 03:47:10,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5169 states, 5168 states have (on average 4.732778637770898) internal successors, (24459), 5168 states have internal predecessors, (24459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:10,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5169 states to 5169 states and 24459 transitions. [2021-06-05 03:47:10,417 INFO L78 Accepts]: Start accepts. Automaton has 5169 states and 24459 transitions. Word has length 29 [2021-06-05 03:47:10,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:10,417 INFO L482 AbstractCegarLoop]: Abstraction has 5169 states and 24459 transitions. [2021-06-05 03:47:10,417 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:10,417 INFO L276 IsEmpty]: Start isEmpty. Operand 5169 states and 24459 transitions. [2021-06-05 03:47:10,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:10,425 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:10,425 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:10,425 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable986 [2021-06-05 03:47:10,425 INFO L430 AbstractCegarLoop]: === Iteration 988 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:10,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:10,425 INFO L82 PathProgramCache]: Analyzing trace with hash -530036729, now seen corresponding path program 983 times [2021-06-05 03:47:10,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:10,425 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738120901] [2021-06-05 03:47:10,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:10,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:10,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:10,557 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:10,557 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738120901] [2021-06-05 03:47:10,557 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738120901] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:10,557 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:10,557 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:10,557 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239909788] [2021-06-05 03:47:10,557 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:10,557 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:10,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:10,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:10,558 INFO L87 Difference]: Start difference. First operand 5169 states and 24459 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:10,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:10,690 INFO L93 Difference]: Finished difference Result 11332 states and 50420 transitions. [2021-06-05 03:47:10,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:10,690 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:10,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:10,717 INFO L225 Difference]: With dead ends: 11332 [2021-06-05 03:47:10,717 INFO L226 Difference]: Without dead ends: 10855 [2021-06-05 03:47:10,717 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 154.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:10,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10855 states. [2021-06-05 03:47:10,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10855 to 5217. [2021-06-05 03:47:10,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5217 states, 5216 states have (on average 4.722967791411043) internal successors, (24635), 5216 states have internal predecessors, (24635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:10,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5217 states to 5217 states and 24635 transitions. [2021-06-05 03:47:10,945 INFO L78 Accepts]: Start accepts. Automaton has 5217 states and 24635 transitions. Word has length 29 [2021-06-05 03:47:10,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:10,945 INFO L482 AbstractCegarLoop]: Abstraction has 5217 states and 24635 transitions. [2021-06-05 03:47:10,945 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:10,945 INFO L276 IsEmpty]: Start isEmpty. Operand 5217 states and 24635 transitions. [2021-06-05 03:47:10,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:10,953 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:10,953 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:10,953 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable987 [2021-06-05 03:47:10,953 INFO L430 AbstractCegarLoop]: === Iteration 989 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:10,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:10,954 INFO L82 PathProgramCache]: Analyzing trace with hash -1376833691, now seen corresponding path program 984 times [2021-06-05 03:47:10,954 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:10,954 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971546754] [2021-06-05 03:47:10,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:10,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:11,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:11,085 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:11,085 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971546754] [2021-06-05 03:47:11,085 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971546754] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:11,085 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:11,085 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:11,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129125419] [2021-06-05 03:47:11,085 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:11,085 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:11,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:11,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:11,085 INFO L87 Difference]: Start difference. First operand 5217 states and 24635 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:11,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:11,183 INFO L93 Difference]: Finished difference Result 11270 states and 50103 transitions. [2021-06-05 03:47:11,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:11,183 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:11,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:11,209 INFO L225 Difference]: With dead ends: 11270 [2021-06-05 03:47:11,209 INFO L226 Difference]: Without dead ends: 10727 [2021-06-05 03:47:11,209 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 137.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:11,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10727 states. [2021-06-05 03:47:11,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10727 to 5089. [2021-06-05 03:47:11,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5089 states, 5088 states have (on average 4.7560927672955975) internal successors, (24199), 5088 states have internal predecessors, (24199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:11,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5089 states to 5089 states and 24199 transitions. [2021-06-05 03:47:11,435 INFO L78 Accepts]: Start accepts. Automaton has 5089 states and 24199 transitions. Word has length 29 [2021-06-05 03:47:11,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:11,435 INFO L482 AbstractCegarLoop]: Abstraction has 5089 states and 24199 transitions. [2021-06-05 03:47:11,435 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:11,435 INFO L276 IsEmpty]: Start isEmpty. Operand 5089 states and 24199 transitions. [2021-06-05 03:47:11,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:11,443 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:11,443 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:11,443 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable988 [2021-06-05 03:47:11,444 INFO L430 AbstractCegarLoop]: === Iteration 990 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:11,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:11,444 INFO L82 PathProgramCache]: Analyzing trace with hash 351681769, now seen corresponding path program 985 times [2021-06-05 03:47:11,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:11,444 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175303976] [2021-06-05 03:47:11,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:11,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:11,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:11,611 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:11,611 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175303976] [2021-06-05 03:47:11,611 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175303976] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:11,611 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:11,611 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:11,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286663640] [2021-06-05 03:47:11,611 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:11,611 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:11,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:11,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:11,611 INFO L87 Difference]: Start difference. First operand 5089 states and 24199 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:11,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:11,778 INFO L93 Difference]: Finished difference Result 11455 states and 51149 transitions. [2021-06-05 03:47:11,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:11,778 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:11,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:11,808 INFO L225 Difference]: With dead ends: 11455 [2021-06-05 03:47:11,808 INFO L226 Difference]: Without dead ends: 11040 [2021-06-05 03:47:11,808 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 189.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:11,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11040 states. [2021-06-05 03:47:12,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11040 to 5253. [2021-06-05 03:47:12,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5253 states, 5252 states have (on average 4.747715156130997) internal successors, (24935), 5252 states have internal predecessors, (24935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:12,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5253 states to 5253 states and 24935 transitions. [2021-06-05 03:47:12,038 INFO L78 Accepts]: Start accepts. Automaton has 5253 states and 24935 transitions. Word has length 29 [2021-06-05 03:47:12,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:12,038 INFO L482 AbstractCegarLoop]: Abstraction has 5253 states and 24935 transitions. [2021-06-05 03:47:12,038 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:12,038 INFO L276 IsEmpty]: Start isEmpty. Operand 5253 states and 24935 transitions. [2021-06-05 03:47:12,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:12,047 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:12,047 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:12,047 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable989 [2021-06-05 03:47:12,047 INFO L430 AbstractCegarLoop]: === Iteration 991 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:12,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:12,047 INFO L82 PathProgramCache]: Analyzing trace with hash 2106502377, now seen corresponding path program 986 times [2021-06-05 03:47:12,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:12,047 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216005940] [2021-06-05 03:47:12,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:12,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:12,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:12,181 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:12,181 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216005940] [2021-06-05 03:47:12,181 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216005940] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:12,181 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:12,181 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:12,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853159999] [2021-06-05 03:47:12,181 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:12,181 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:12,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:12,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:12,181 INFO L87 Difference]: Start difference. First operand 5253 states and 24935 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:12,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:12,281 INFO L93 Difference]: Finished difference Result 11582 states and 51628 transitions. [2021-06-05 03:47:12,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:12,281 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:12,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:12,309 INFO L225 Difference]: With dead ends: 11582 [2021-06-05 03:47:12,309 INFO L226 Difference]: Without dead ends: 10960 [2021-06-05 03:47:12,310 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 142.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:12,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10960 states. [2021-06-05 03:47:12,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10960 to 5173. [2021-06-05 03:47:12,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5173 states, 5172 states have (on average 4.7515467904099) internal successors, (24575), 5172 states have internal predecessors, (24575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:12,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5173 states to 5173 states and 24575 transitions. [2021-06-05 03:47:12,577 INFO L78 Accepts]: Start accepts. Automaton has 5173 states and 24575 transitions. Word has length 29 [2021-06-05 03:47:12,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:12,577 INFO L482 AbstractCegarLoop]: Abstraction has 5173 states and 24575 transitions. [2021-06-05 03:47:12,577 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:12,577 INFO L276 IsEmpty]: Start isEmpty. Operand 5173 states and 24575 transitions. [2021-06-05 03:47:12,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:12,586 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:12,586 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:12,586 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable990 [2021-06-05 03:47:12,586 INFO L430 AbstractCegarLoop]: === Iteration 992 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:12,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:12,587 INFO L82 PathProgramCache]: Analyzing trace with hash 131879913, now seen corresponding path program 987 times [2021-06-05 03:47:12,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:12,587 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796252435] [2021-06-05 03:47:12,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:12,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:12,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:12,717 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:12,717 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796252435] [2021-06-05 03:47:12,717 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796252435] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:12,717 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:12,717 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:12,717 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923090221] [2021-06-05 03:47:12,717 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:12,717 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:12,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:12,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:12,717 INFO L87 Difference]: Start difference. First operand 5173 states and 24575 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:12,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:12,829 INFO L93 Difference]: Finished difference Result 11358 states and 50707 transitions. [2021-06-05 03:47:12,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:12,829 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:12,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:12,856 INFO L225 Difference]: With dead ends: 11358 [2021-06-05 03:47:12,856 INFO L226 Difference]: Without dead ends: 10943 [2021-06-05 03:47:12,857 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 153.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:12,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10943 states. [2021-06-05 03:47:13,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10943 to 5221. [2021-06-05 03:47:13,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5221 states, 5220 states have (on average 4.741570881226053) internal successors, (24751), 5220 states have internal predecessors, (24751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:13,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5221 states to 5221 states and 24751 transitions. [2021-06-05 03:47:13,084 INFO L78 Accepts]: Start accepts. Automaton has 5221 states and 24751 transitions. Word has length 29 [2021-06-05 03:47:13,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:13,084 INFO L482 AbstractCegarLoop]: Abstraction has 5221 states and 24751 transitions. [2021-06-05 03:47:13,084 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:13,084 INFO L276 IsEmpty]: Start isEmpty. Operand 5221 states and 24751 transitions. [2021-06-05 03:47:13,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:13,093 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:13,093 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:13,093 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable991 [2021-06-05 03:47:13,093 INFO L430 AbstractCegarLoop]: === Iteration 993 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:13,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:13,093 INFO L82 PathProgramCache]: Analyzing trace with hash 848542859, now seen corresponding path program 988 times [2021-06-05 03:47:13,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:13,093 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881641489] [2021-06-05 03:47:13,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:13,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:13,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:13,223 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:13,223 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881641489] [2021-06-05 03:47:13,223 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881641489] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:13,223 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:13,223 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:13,223 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478697832] [2021-06-05 03:47:13,223 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:13,223 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:13,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:13,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:13,224 INFO L87 Difference]: Start difference. First operand 5221 states and 24751 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:13,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:13,337 INFO L93 Difference]: Finished difference Result 11420 states and 50928 transitions. [2021-06-05 03:47:13,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:13,337 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:13,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:13,364 INFO L225 Difference]: With dead ends: 11420 [2021-06-05 03:47:13,364 INFO L226 Difference]: Without dead ends: 10895 [2021-06-05 03:47:13,364 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 153.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:13,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10895 states. [2021-06-05 03:47:13,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10895 to 5173. [2021-06-05 03:47:13,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5173 states, 5172 states have (on average 4.746906419180201) internal successors, (24551), 5172 states have internal predecessors, (24551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:13,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5173 states to 5173 states and 24551 transitions. [2021-06-05 03:47:13,592 INFO L78 Accepts]: Start accepts. Automaton has 5173 states and 24551 transitions. Word has length 29 [2021-06-05 03:47:13,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:13,592 INFO L482 AbstractCegarLoop]: Abstraction has 5173 states and 24551 transitions. [2021-06-05 03:47:13,592 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:13,592 INFO L276 IsEmpty]: Start isEmpty. Operand 5173 states and 24551 transitions. [2021-06-05 03:47:13,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:13,601 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:13,601 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:13,601 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable992 [2021-06-05 03:47:13,601 INFO L430 AbstractCegarLoop]: === Iteration 994 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:13,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:13,601 INFO L82 PathProgramCache]: Analyzing trace with hash -1363198837, now seen corresponding path program 989 times [2021-06-05 03:47:13,601 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:13,601 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102471729] [2021-06-05 03:47:13,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:13,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:13,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:13,729 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:13,729 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102471729] [2021-06-05 03:47:13,729 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102471729] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:13,729 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:13,729 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:13,729 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660404717] [2021-06-05 03:47:13,729 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:13,729 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:13,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:13,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:13,729 INFO L87 Difference]: Start difference. First operand 5173 states and 24551 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:13,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:13,828 INFO L93 Difference]: Finished difference Result 11707 states and 52143 transitions. [2021-06-05 03:47:13,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:13,828 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:13,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:13,856 INFO L225 Difference]: With dead ends: 11707 [2021-06-05 03:47:13,856 INFO L226 Difference]: Without dead ends: 11165 [2021-06-05 03:47:13,856 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 134.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:13,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11165 states. [2021-06-05 03:47:14,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11165 to 5316. [2021-06-05 03:47:14,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5316 states, 5315 states have (on average 4.716839134524929) internal successors, (25070), 5315 states have internal predecessors, (25070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:14,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5316 states to 5316 states and 25070 transitions. [2021-06-05 03:47:14,091 INFO L78 Accepts]: Start accepts. Automaton has 5316 states and 25070 transitions. Word has length 29 [2021-06-05 03:47:14,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:14,091 INFO L482 AbstractCegarLoop]: Abstraction has 5316 states and 25070 transitions. [2021-06-05 03:47:14,092 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:14,092 INFO L276 IsEmpty]: Start isEmpty. Operand 5316 states and 25070 transitions. [2021-06-05 03:47:14,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:14,101 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:14,101 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:14,101 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable993 [2021-06-05 03:47:14,101 INFO L430 AbstractCegarLoop]: === Iteration 995 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:14,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:14,101 INFO L82 PathProgramCache]: Analyzing trace with hash 888431465, now seen corresponding path program 990 times [2021-06-05 03:47:14,101 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:14,101 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233093677] [2021-06-05 03:47:14,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:14,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:14,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:14,223 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:14,223 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233093677] [2021-06-05 03:47:14,223 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233093677] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:14,223 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:14,223 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:14,223 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604839702] [2021-06-05 03:47:14,223 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:14,223 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:14,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:14,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:14,224 INFO L87 Difference]: Start difference. First operand 5316 states and 25070 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:14,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:14,343 INFO L93 Difference]: Finished difference Result 11642 states and 51774 transitions. [2021-06-05 03:47:14,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:14,343 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:14,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:14,369 INFO L225 Difference]: With dead ends: 11642 [2021-06-05 03:47:14,370 INFO L226 Difference]: Without dead ends: 10966 [2021-06-05 03:47:14,370 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 146.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:14,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10966 states. [2021-06-05 03:47:14,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10966 to 5117. [2021-06-05 03:47:14,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.753518373729476) internal successors, (24319), 5116 states have internal predecessors, (24319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:14,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24319 transitions. [2021-06-05 03:47:14,599 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24319 transitions. Word has length 29 [2021-06-05 03:47:14,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:14,599 INFO L482 AbstractCegarLoop]: Abstraction has 5117 states and 24319 transitions. [2021-06-05 03:47:14,599 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:14,599 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24319 transitions. [2021-06-05 03:47:14,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:14,608 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:14,608 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:14,608 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable994 [2021-06-05 03:47:14,608 INFO L430 AbstractCegarLoop]: === Iteration 996 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:14,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:14,608 INFO L82 PathProgramCache]: Analyzing trace with hash -155752565, now seen corresponding path program 991 times [2021-06-05 03:47:14,608 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:14,608 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864519317] [2021-06-05 03:47:14,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:14,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:14,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:14,740 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:14,740 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864519317] [2021-06-05 03:47:14,740 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864519317] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:14,740 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:14,740 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:14,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460037572] [2021-06-05 03:47:14,740 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:14,740 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:14,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:14,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:14,740 INFO L87 Difference]: Start difference. First operand 5117 states and 24319 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:14,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:14,857 INFO L93 Difference]: Finished difference Result 11306 states and 50506 transitions. [2021-06-05 03:47:14,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:14,857 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:14,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:14,884 INFO L225 Difference]: With dead ends: 11306 [2021-06-05 03:47:14,884 INFO L226 Difference]: Without dead ends: 10891 [2021-06-05 03:47:14,885 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 155.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:15,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10891 states. [2021-06-05 03:47:15,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10891 to 5237. [2021-06-05 03:47:15,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5237 states, 5236 states have (on average 4.744652406417113) internal successors, (24843), 5236 states have internal predecessors, (24843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:15,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5237 states to 5237 states and 24843 transitions. [2021-06-05 03:47:15,115 INFO L78 Accepts]: Start accepts. Automaton has 5237 states and 24843 transitions. Word has length 29 [2021-06-05 03:47:15,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:15,115 INFO L482 AbstractCegarLoop]: Abstraction has 5237 states and 24843 transitions. [2021-06-05 03:47:15,116 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:15,116 INFO L276 IsEmpty]: Start isEmpty. Operand 5237 states and 24843 transitions. [2021-06-05 03:47:15,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:15,124 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:15,124 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:15,124 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable995 [2021-06-05 03:47:15,124 INFO L430 AbstractCegarLoop]: === Iteration 997 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:15,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:15,124 INFO L82 PathProgramCache]: Analyzing trace with hash 1599068043, now seen corresponding path program 992 times [2021-06-05 03:47:15,124 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:15,124 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704439204] [2021-06-05 03:47:15,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:15,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:15,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:15,259 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:15,259 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704439204] [2021-06-05 03:47:15,259 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704439204] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:15,259 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:15,259 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:15,259 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484351572] [2021-06-05 03:47:15,259 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:15,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:15,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:15,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:15,260 INFO L87 Difference]: Start difference. First operand 5237 states and 24843 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:15,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:15,354 INFO L93 Difference]: Finished difference Result 11433 states and 50985 transitions. [2021-06-05 03:47:15,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:15,355 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:15,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:15,381 INFO L225 Difference]: With dead ends: 11433 [2021-06-05 03:47:15,382 INFO L226 Difference]: Without dead ends: 10811 [2021-06-05 03:47:15,382 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 142.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:15,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10811 states. [2021-06-05 03:47:15,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10811 to 5157. [2021-06-05 03:47:15,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5157 states, 5156 states have (on average 4.7484484096198605) internal successors, (24483), 5156 states have internal predecessors, (24483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:15,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5157 states to 5157 states and 24483 transitions. [2021-06-05 03:47:15,608 INFO L78 Accepts]: Start accepts. Automaton has 5157 states and 24483 transitions. Word has length 29 [2021-06-05 03:47:15,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:15,608 INFO L482 AbstractCegarLoop]: Abstraction has 5157 states and 24483 transitions. [2021-06-05 03:47:15,608 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:15,608 INFO L276 IsEmpty]: Start isEmpty. Operand 5157 states and 24483 transitions. [2021-06-05 03:47:15,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:15,617 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:15,617 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:15,617 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable996 [2021-06-05 03:47:15,617 INFO L430 AbstractCegarLoop]: === Iteration 998 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:15,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:15,617 INFO L82 PathProgramCache]: Analyzing trace with hash -1692871639, now seen corresponding path program 993 times [2021-06-05 03:47:15,617 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:15,617 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920269096] [2021-06-05 03:47:15,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:15,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:15,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:15,740 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:15,740 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920269096] [2021-06-05 03:47:15,740 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920269096] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:15,740 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:15,740 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:15,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960369383] [2021-06-05 03:47:15,740 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:15,740 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:15,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:15,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:15,741 INFO L87 Difference]: Start difference. First operand 5157 states and 24483 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:15,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:15,854 INFO L93 Difference]: Finished difference Result 11099 states and 49619 transitions. [2021-06-05 03:47:15,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:15,854 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:15,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:15,880 INFO L225 Difference]: With dead ends: 11099 [2021-06-05 03:47:15,881 INFO L226 Difference]: Without dead ends: 10684 [2021-06-05 03:47:15,881 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 147.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:15,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10684 states. [2021-06-05 03:47:16,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10684 to 5205. [2021-06-05 03:47:16,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5205 states, 5204 states have (on average 4.738470407378939) internal successors, (24659), 5204 states have internal predecessors, (24659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:16,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5205 states to 5205 states and 24659 transitions. [2021-06-05 03:47:16,106 INFO L78 Accepts]: Start accepts. Automaton has 5205 states and 24659 transitions. Word has length 29 [2021-06-05 03:47:16,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:16,107 INFO L482 AbstractCegarLoop]: Abstraction has 5205 states and 24659 transitions. [2021-06-05 03:47:16,107 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:16,107 INFO L276 IsEmpty]: Start isEmpty. Operand 5205 states and 24659 transitions. [2021-06-05 03:47:16,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:16,115 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:16,115 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:16,115 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable997 [2021-06-05 03:47:16,115 INFO L430 AbstractCegarLoop]: === Iteration 999 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:16,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:16,116 INFO L82 PathProgramCache]: Analyzing trace with hash 856070859, now seen corresponding path program 994 times [2021-06-05 03:47:16,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:16,116 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805923352] [2021-06-05 03:47:16,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:16,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:16,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:16,239 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:16,239 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805923352] [2021-06-05 03:47:16,239 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805923352] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:16,239 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:16,240 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:16,240 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629522469] [2021-06-05 03:47:16,240 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:16,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:16,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:16,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:16,240 INFO L87 Difference]: Start difference. First operand 5205 states and 24659 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:16,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:16,359 INFO L93 Difference]: Finished difference Result 10827 states and 48610 transitions. [2021-06-05 03:47:16,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:16,360 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:16,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:16,386 INFO L225 Difference]: With dead ends: 10827 [2021-06-05 03:47:16,386 INFO L226 Difference]: Without dead ends: 10316 [2021-06-05 03:47:16,386 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 149.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:16,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10316 states. [2021-06-05 03:47:16,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10316 to 5157. [2021-06-05 03:47:16,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5157 states, 5156 states have (on average 4.743793638479441) internal successors, (24459), 5156 states have internal predecessors, (24459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:16,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5157 states to 5157 states and 24459 transitions. [2021-06-05 03:47:16,610 INFO L78 Accepts]: Start accepts. Automaton has 5157 states and 24459 transitions. Word has length 29 [2021-06-05 03:47:16,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:16,611 INFO L482 AbstractCegarLoop]: Abstraction has 5157 states and 24459 transitions. [2021-06-05 03:47:16,611 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:16,611 INFO L276 IsEmpty]: Start isEmpty. Operand 5157 states and 24459 transitions. [2021-06-05 03:47:16,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:16,619 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:16,619 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:16,619 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable998 [2021-06-05 03:47:16,619 INFO L430 AbstractCegarLoop]: === Iteration 1000 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:16,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:16,620 INFO L82 PathProgramCache]: Analyzing trace with hash 250501835, now seen corresponding path program 995 times [2021-06-05 03:47:16,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:16,620 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329548630] [2021-06-05 03:47:16,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:16,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:16,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:16,757 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:16,757 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329548630] [2021-06-05 03:47:16,757 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329548630] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:16,757 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:16,757 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:16,757 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969796811] [2021-06-05 03:47:16,758 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:16,758 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:16,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:16,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:16,758 INFO L87 Difference]: Start difference. First operand 5157 states and 24459 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:16,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:16,859 INFO L93 Difference]: Finished difference Result 11282 states and 50390 transitions. [2021-06-05 03:47:16,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:16,860 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:16,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:16,885 INFO L225 Difference]: With dead ends: 11282 [2021-06-05 03:47:16,886 INFO L226 Difference]: Without dead ends: 10740 [2021-06-05 03:47:16,886 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 145.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:17,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10740 states. [2021-06-05 03:47:17,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10740 to 5261. [2021-06-05 03:47:17,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5261 states, 5260 states have (on average 4.723764258555133) internal successors, (24847), 5260 states have internal predecessors, (24847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:17,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5261 states to 5261 states and 24847 transitions. [2021-06-05 03:47:17,111 INFO L78 Accepts]: Start accepts. Automaton has 5261 states and 24847 transitions. Word has length 29 [2021-06-05 03:47:17,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:17,111 INFO L482 AbstractCegarLoop]: Abstraction has 5261 states and 24847 transitions. [2021-06-05 03:47:17,112 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:17,112 INFO L276 IsEmpty]: Start isEmpty. Operand 5261 states and 24847 transitions. [2021-06-05 03:47:17,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:17,120 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:17,120 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:17,120 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable999 [2021-06-05 03:47:17,120 INFO L430 AbstractCegarLoop]: === Iteration 1001 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:17,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:17,121 INFO L82 PathProgramCache]: Analyzing trace with hash 811934633, now seen corresponding path program 996 times [2021-06-05 03:47:17,121 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:17,121 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923688789] [2021-06-05 03:47:17,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:17,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:17,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:17,260 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:17,260 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923688789] [2021-06-05 03:47:17,260 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923688789] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:17,260 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:17,260 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:17,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306686757] [2021-06-05 03:47:17,260 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:17,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:17,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:17,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:17,261 INFO L87 Difference]: Start difference. First operand 5261 states and 24847 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:17,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:17,387 INFO L93 Difference]: Finished difference Result 10883 states and 48798 transitions. [2021-06-05 03:47:17,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:17,388 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:17,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:17,414 INFO L225 Difference]: With dead ends: 10883 [2021-06-05 03:47:17,414 INFO L226 Difference]: Without dead ends: 10276 [2021-06-05 03:47:17,414 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 163.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:17,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10276 states. [2021-06-05 03:47:17,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10276 to 5117. [2021-06-05 03:47:17,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.749609069585614) internal successors, (24299), 5116 states have internal predecessors, (24299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:17,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24299 transitions. [2021-06-05 03:47:17,635 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24299 transitions. Word has length 29 [2021-06-05 03:47:17,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:17,635 INFO L482 AbstractCegarLoop]: Abstraction has 5117 states and 24299 transitions. [2021-06-05 03:47:17,635 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:17,635 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24299 transitions. [2021-06-05 03:47:17,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:17,644 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:17,644 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:17,644 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1000 [2021-06-05 03:47:17,644 INFO L430 AbstractCegarLoop]: === Iteration 1002 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:17,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:17,644 INFO L82 PathProgramCache]: Analyzing trace with hash 1085336361, now seen corresponding path program 997 times [2021-06-05 03:47:17,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:17,644 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983048607] [2021-06-05 03:47:17,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:17,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:17,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:17,776 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:17,776 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983048607] [2021-06-05 03:47:17,776 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983048607] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:17,776 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:17,776 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:17,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646863491] [2021-06-05 03:47:17,776 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:17,776 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:17,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:17,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:17,776 INFO L87 Difference]: Start difference. First operand 5117 states and 24299 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:17,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:17,903 INFO L93 Difference]: Finished difference Result 11096 states and 49602 transitions. [2021-06-05 03:47:17,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:17,903 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:17,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:17,929 INFO L225 Difference]: With dead ends: 11096 [2021-06-05 03:47:17,929 INFO L226 Difference]: Without dead ends: 10681 [2021-06-05 03:47:17,929 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 156.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:18,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10681 states. [2021-06-05 03:47:18,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10681 to 5189. [2021-06-05 03:47:18,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5189 states, 5188 states have (on average 4.741518889745567) internal successors, (24599), 5188 states have internal predecessors, (24599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:18,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5189 states to 5189 states and 24599 transitions. [2021-06-05 03:47:18,158 INFO L78 Accepts]: Start accepts. Automaton has 5189 states and 24599 transitions. Word has length 29 [2021-06-05 03:47:18,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:18,158 INFO L482 AbstractCegarLoop]: Abstraction has 5189 states and 24599 transitions. [2021-06-05 03:47:18,158 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:18,158 INFO L276 IsEmpty]: Start isEmpty. Operand 5189 states and 24599 transitions. [2021-06-05 03:47:18,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:18,167 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:18,167 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:18,167 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1001 [2021-06-05 03:47:18,167 INFO L430 AbstractCegarLoop]: === Iteration 1003 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:18,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:18,167 INFO L82 PathProgramCache]: Analyzing trace with hash 1801999307, now seen corresponding path program 998 times [2021-06-05 03:47:18,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:18,167 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131804948] [2021-06-05 03:47:18,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:18,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:18,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:18,299 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:18,300 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131804948] [2021-06-05 03:47:18,300 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131804948] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:18,300 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:18,300 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:18,300 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140707641] [2021-06-05 03:47:18,300 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:18,300 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:18,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:18,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:18,300 INFO L87 Difference]: Start difference. First operand 5189 states and 24599 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:18,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:18,428 INFO L93 Difference]: Finished difference Result 11158 states and 49823 transitions. [2021-06-05 03:47:18,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:18,429 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:18,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:18,455 INFO L225 Difference]: With dead ends: 11158 [2021-06-05 03:47:18,455 INFO L226 Difference]: Without dead ends: 10633 [2021-06-05 03:47:18,456 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 161.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:18,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10633 states. [2021-06-05 03:47:18,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10633 to 5141. [2021-06-05 03:47:18,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5141 states, 5140 states have (on average 4.746887159533074) internal successors, (24399), 5140 states have internal predecessors, (24399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:18,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5141 states to 5141 states and 24399 transitions. [2021-06-05 03:47:18,680 INFO L78 Accepts]: Start accepts. Automaton has 5141 states and 24399 transitions. Word has length 29 [2021-06-05 03:47:18,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:18,680 INFO L482 AbstractCegarLoop]: Abstraction has 5141 states and 24399 transitions. [2021-06-05 03:47:18,680 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:18,680 INFO L276 IsEmpty]: Start isEmpty. Operand 5141 states and 24399 transitions. [2021-06-05 03:47:18,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:18,689 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:18,689 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:18,689 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1002 [2021-06-05 03:47:18,689 INFO L430 AbstractCegarLoop]: === Iteration 1004 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:18,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:18,689 INFO L82 PathProgramCache]: Analyzing trace with hash -1474738677, now seen corresponding path program 999 times [2021-06-05 03:47:18,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:18,689 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767710088] [2021-06-05 03:47:18,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:18,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:18,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:18,812 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:18,812 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767710088] [2021-06-05 03:47:18,812 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767710088] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:18,812 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:18,812 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:18,812 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742591103] [2021-06-05 03:47:18,812 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:18,812 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:18,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:18,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:18,813 INFO L87 Difference]: Start difference. First operand 5141 states and 24399 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:18,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:18,930 INFO L93 Difference]: Finished difference Result 10986 states and 49133 transitions. [2021-06-05 03:47:18,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:18,930 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:18,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:18,956 INFO L225 Difference]: With dead ends: 10986 [2021-06-05 03:47:18,956 INFO L226 Difference]: Without dead ends: 10571 [2021-06-05 03:47:18,956 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 147.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:19,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10571 states. [2021-06-05 03:47:19,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10571 to 5189. [2021-06-05 03:47:19,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5189 states, 5188 states have (on average 4.736892829606785) internal successors, (24575), 5188 states have internal predecessors, (24575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:19,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5189 states to 5189 states and 24575 transitions. [2021-06-05 03:47:19,181 INFO L78 Accepts]: Start accepts. Automaton has 5189 states and 24575 transitions. Word has length 29 [2021-06-05 03:47:19,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:19,181 INFO L482 AbstractCegarLoop]: Abstraction has 5189 states and 24575 transitions. [2021-06-05 03:47:19,181 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:19,181 INFO L276 IsEmpty]: Start isEmpty. Operand 5189 states and 24575 transitions. [2021-06-05 03:47:19,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:19,190 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:19,190 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:19,190 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1003 [2021-06-05 03:47:19,190 INFO L430 AbstractCegarLoop]: === Iteration 1005 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:19,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:19,190 INFO L82 PathProgramCache]: Analyzing trace with hash 79884747, now seen corresponding path program 1000 times [2021-06-05 03:47:19,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:19,190 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253371590] [2021-06-05 03:47:19,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:19,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:19,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:19,313 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:19,313 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253371590] [2021-06-05 03:47:19,313 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253371590] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:19,313 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:19,313 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:19,313 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421541254] [2021-06-05 03:47:19,313 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:19,313 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:19,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:19,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:19,313 INFO L87 Difference]: Start difference. First operand 5189 states and 24575 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:19,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:19,430 INFO L93 Difference]: Finished difference Result 10714 states and 48124 transitions. [2021-06-05 03:47:19,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:19,431 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:19,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:19,455 INFO L225 Difference]: With dead ends: 10714 [2021-06-05 03:47:19,456 INFO L226 Difference]: Without dead ends: 10203 [2021-06-05 03:47:19,456 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 146.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:19,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10203 states. [2021-06-05 03:47:19,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10203 to 5141. [2021-06-05 03:47:19,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5141 states, 5140 states have (on average 4.742217898832685) internal successors, (24375), 5140 states have internal predecessors, (24375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:19,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5141 states to 5141 states and 24375 transitions. [2021-06-05 03:47:19,679 INFO L78 Accepts]: Start accepts. Automaton has 5141 states and 24375 transitions. Word has length 29 [2021-06-05 03:47:19,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:19,679 INFO L482 AbstractCegarLoop]: Abstraction has 5141 states and 24375 transitions. [2021-06-05 03:47:19,679 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:19,679 INFO L276 IsEmpty]: Start isEmpty. Operand 5141 states and 24375 transitions. [2021-06-05 03:47:19,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:19,687 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:19,687 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:19,687 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1004 [2021-06-05 03:47:19,688 INFO L430 AbstractCegarLoop]: === Iteration 1006 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:19,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:19,688 INFO L82 PathProgramCache]: Analyzing trace with hash -1090586131, now seen corresponding path program 1001 times [2021-06-05 03:47:19,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:19,688 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440067145] [2021-06-05 03:47:19,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:19,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:19,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:19,824 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:19,824 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440067145] [2021-06-05 03:47:19,825 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440067145] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:19,825 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:19,825 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:19,825 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785848381] [2021-06-05 03:47:19,825 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:19,825 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:19,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:19,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:19,825 INFO L87 Difference]: Start difference. First operand 5141 states and 24375 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:19,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:19,949 INFO L93 Difference]: Finished difference Result 11072 states and 49502 transitions. [2021-06-05 03:47:19,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:19,949 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:19,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:19,974 INFO L225 Difference]: With dead ends: 11072 [2021-06-05 03:47:19,975 INFO L226 Difference]: Without dead ends: 10595 [2021-06-05 03:47:19,975 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 159.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:20,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10595 states. [2021-06-05 03:47:20,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10595 to 5213. [2021-06-05 03:47:20,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5213 states, 5212 states have (on average 4.7296623177283195) internal successors, (24651), 5212 states have internal predecessors, (24651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:20,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5213 states to 5213 states and 24651 transitions. [2021-06-05 03:47:20,199 INFO L78 Accepts]: Start accepts. Automaton has 5213 states and 24651 transitions. Word has length 29 [2021-06-05 03:47:20,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:20,199 INFO L482 AbstractCegarLoop]: Abstraction has 5213 states and 24651 transitions. [2021-06-05 03:47:20,199 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:20,199 INFO L276 IsEmpty]: Start isEmpty. Operand 5213 states and 24651 transitions. [2021-06-05 03:47:20,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:20,208 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:20,208 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:20,208 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1005 [2021-06-05 03:47:20,208 INFO L430 AbstractCegarLoop]: === Iteration 1007 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:20,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:20,208 INFO L82 PathProgramCache]: Analyzing trace with hash -1180345781, now seen corresponding path program 1002 times [2021-06-05 03:47:20,208 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:20,208 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151413409] [2021-06-05 03:47:20,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:20,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:20,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:20,342 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:20,342 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151413409] [2021-06-05 03:47:20,342 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151413409] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:20,342 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:20,342 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:20,342 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460634968] [2021-06-05 03:47:20,342 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:20,342 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:20,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:20,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:20,342 INFO L87 Difference]: Start difference. First operand 5213 states and 24651 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:20,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:20,472 INFO L93 Difference]: Finished difference Result 10738 states and 48200 transitions. [2021-06-05 03:47:20,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:20,472 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:20,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:20,498 INFO L225 Difference]: With dead ends: 10738 [2021-06-05 03:47:20,498 INFO L226 Difference]: Without dead ends: 10179 [2021-06-05 03:47:20,498 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 158.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:20,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10179 states. [2021-06-05 03:47:20,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10179 to 5117. [2021-06-05 03:47:20,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.747263487099296) internal successors, (24287), 5116 states have internal predecessors, (24287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:20,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24287 transitions. [2021-06-05 03:47:20,719 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24287 transitions. Word has length 29 [2021-06-05 03:47:20,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:20,719 INFO L482 AbstractCegarLoop]: Abstraction has 5117 states and 24287 transitions. [2021-06-05 03:47:20,719 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:20,719 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24287 transitions. [2021-06-05 03:47:20,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:20,728 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:20,728 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:20,728 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1006 [2021-06-05 03:47:20,728 INFO L430 AbstractCegarLoop]: === Iteration 1008 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:20,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:20,728 INFO L82 PathProgramCache]: Analyzing trace with hash 400935405, now seen corresponding path program 1003 times [2021-06-05 03:47:20,728 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:20,728 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585773517] [2021-06-05 03:47:20,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:20,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:20,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:20,853 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:20,853 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585773517] [2021-06-05 03:47:20,853 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585773517] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:20,853 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:20,853 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:20,854 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170820902] [2021-06-05 03:47:20,854 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:20,854 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:20,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:20,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:20,854 INFO L87 Difference]: Start difference. First operand 5117 states and 24287 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:20,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:20,966 INFO L93 Difference]: Finished difference Result 11672 states and 52057 transitions. [2021-06-05 03:47:20,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:20,966 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:20,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:20,993 INFO L225 Difference]: With dead ends: 11672 [2021-06-05 03:47:20,993 INFO L226 Difference]: Without dead ends: 11130 [2021-06-05 03:47:20,994 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 132.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:21,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11130 states. [2021-06-05 03:47:21,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11130 to 5328. [2021-06-05 03:47:21,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5328 states, 5327 states have (on average 4.719729678993805) internal successors, (25142), 5327 states have internal predecessors, (25142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:21,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5328 states to 5328 states and 25142 transitions. [2021-06-05 03:47:21,228 INFO L78 Accepts]: Start accepts. Automaton has 5328 states and 25142 transitions. Word has length 29 [2021-06-05 03:47:21,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:21,229 INFO L482 AbstractCegarLoop]: Abstraction has 5328 states and 25142 transitions. [2021-06-05 03:47:21,229 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:21,229 INFO L276 IsEmpty]: Start isEmpty. Operand 5328 states and 25142 transitions. [2021-06-05 03:47:21,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:21,238 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:21,238 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:21,238 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1007 [2021-06-05 03:47:21,238 INFO L430 AbstractCegarLoop]: === Iteration 1009 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:21,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:21,238 INFO L82 PathProgramCache]: Analyzing trace with hash -1642401589, now seen corresponding path program 1004 times [2021-06-05 03:47:21,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:21,238 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264140772] [2021-06-05 03:47:21,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:21,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:21,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:21,364 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:21,364 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264140772] [2021-06-05 03:47:21,364 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264140772] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:21,364 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:21,364 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:21,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761476557] [2021-06-05 03:47:21,364 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:21,364 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:21,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:21,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:21,365 INFO L87 Difference]: Start difference. First operand 5328 states and 25142 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:21,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:21,479 INFO L93 Difference]: Finished difference Result 11607 states and 51688 transitions. [2021-06-05 03:47:21,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:21,480 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:21,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:21,507 INFO L225 Difference]: With dead ends: 11607 [2021-06-05 03:47:21,507 INFO L226 Difference]: Without dead ends: 10987 [2021-06-05 03:47:21,507 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 150.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:21,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10987 states. [2021-06-05 03:47:21,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10987 to 5185. [2021-06-05 03:47:21,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5185 states, 5184 states have (on average 4.736689814814815) internal successors, (24555), 5184 states have internal predecessors, (24555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:21,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5185 states to 5185 states and 24555 transitions. [2021-06-05 03:47:21,801 INFO L78 Accepts]: Start accepts. Automaton has 5185 states and 24555 transitions. Word has length 29 [2021-06-05 03:47:21,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:21,801 INFO L482 AbstractCegarLoop]: Abstraction has 5185 states and 24555 transitions. [2021-06-05 03:47:21,801 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:21,801 INFO L276 IsEmpty]: Start isEmpty. Operand 5185 states and 24555 transitions. [2021-06-05 03:47:21,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:21,809 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:21,809 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:21,810 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1008 [2021-06-05 03:47:21,810 INFO L430 AbstractCegarLoop]: === Iteration 1010 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:21,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:21,810 INFO L82 PathProgramCache]: Analyzing trace with hash 41257675, now seen corresponding path program 1005 times [2021-06-05 03:47:21,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:21,810 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230108887] [2021-06-05 03:47:21,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:21,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:21,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:21,946 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:21,946 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230108887] [2021-06-05 03:47:21,946 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230108887] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:21,946 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:21,946 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:21,946 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46169350] [2021-06-05 03:47:21,946 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:21,946 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:21,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:21,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:21,947 INFO L87 Difference]: Start difference. First operand 5185 states and 24555 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:22,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:22,037 INFO L93 Difference]: Finished difference Result 11396 states and 50879 transitions. [2021-06-05 03:47:22,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:22,038 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:22,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:22,064 INFO L225 Difference]: With dead ends: 11396 [2021-06-05 03:47:22,064 INFO L226 Difference]: Without dead ends: 10854 [2021-06-05 03:47:22,064 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 143.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:22,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10854 states. [2021-06-05 03:47:22,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10854 to 5289. [2021-06-05 03:47:22,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5289 states, 5288 states have (on average 4.7169062027231465) internal successors, (24943), 5288 states have internal predecessors, (24943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:22,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5289 states to 5289 states and 24943 transitions. [2021-06-05 03:47:22,291 INFO L78 Accepts]: Start accepts. Automaton has 5289 states and 24943 transitions. Word has length 29 [2021-06-05 03:47:22,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:22,291 INFO L482 AbstractCegarLoop]: Abstraction has 5289 states and 24943 transitions. [2021-06-05 03:47:22,291 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:22,291 INFO L276 IsEmpty]: Start isEmpty. Operand 5289 states and 24943 transitions. [2021-06-05 03:47:22,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:22,300 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:22,300 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:22,300 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1009 [2021-06-05 03:47:22,300 INFO L430 AbstractCegarLoop]: === Iteration 1011 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:22,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:22,300 INFO L82 PathProgramCache]: Analyzing trace with hash -676310325, now seen corresponding path program 1006 times [2021-06-05 03:47:22,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:22,300 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453840742] [2021-06-05 03:47:22,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:22,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:22,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:22,455 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:22,455 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453840742] [2021-06-05 03:47:22,455 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453840742] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:22,455 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:22,455 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:22,455 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723424002] [2021-06-05 03:47:22,455 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:22,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:22,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:22,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:22,456 INFO L87 Difference]: Start difference. First operand 5289 states and 24943 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:22,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:22,565 INFO L93 Difference]: Finished difference Result 10997 states and 49287 transitions. [2021-06-05 03:47:22,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:22,565 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:22,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:22,591 INFO L225 Difference]: With dead ends: 10997 [2021-06-05 03:47:22,591 INFO L226 Difference]: Without dead ends: 10430 [2021-06-05 03:47:22,591 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 179.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:22,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10430 states. [2021-06-05 03:47:22,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10430 to 5185. [2021-06-05 03:47:22,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5185 states, 5184 states have (on average 4.726658950617284) internal successors, (24503), 5184 states have internal predecessors, (24503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:22,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5185 states to 5185 states and 24503 transitions. [2021-06-05 03:47:22,817 INFO L78 Accepts]: Start accepts. Automaton has 5185 states and 24503 transitions. Word has length 29 [2021-06-05 03:47:22,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:22,817 INFO L482 AbstractCegarLoop]: Abstraction has 5185 states and 24503 transitions. [2021-06-05 03:47:22,817 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:22,817 INFO L276 IsEmpty]: Start isEmpty. Operand 5185 states and 24503 transitions. [2021-06-05 03:47:22,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:22,826 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:22,826 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:22,826 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1010 [2021-06-05 03:47:22,826 INFO L430 AbstractCegarLoop]: === Iteration 1012 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:22,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:22,826 INFO L82 PathProgramCache]: Analyzing trace with hash 1023605289, now seen corresponding path program 1007 times [2021-06-05 03:47:22,826 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:22,826 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23559714] [2021-06-05 03:47:22,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:22,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:22,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:22,960 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:22,960 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23559714] [2021-06-05 03:47:22,960 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23559714] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:22,960 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:22,960 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:22,960 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751810068] [2021-06-05 03:47:22,960 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:22,960 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:22,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:22,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:22,960 INFO L87 Difference]: Start difference. First operand 5185 states and 24503 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:23,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:23,069 INFO L93 Difference]: Finished difference Result 11299 states and 50425 transitions. [2021-06-05 03:47:23,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:23,069 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:23,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:23,096 INFO L225 Difference]: With dead ends: 11299 [2021-06-05 03:47:23,096 INFO L226 Difference]: Without dead ends: 10822 [2021-06-05 03:47:23,096 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 157.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:23,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10822 states. [2021-06-05 03:47:23,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10822 to 5257. [2021-06-05 03:47:23,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5257 states, 5256 states have (on average 4.714421613394216) internal successors, (24779), 5256 states have internal predecessors, (24779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:23,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5257 states to 5257 states and 24779 transitions. [2021-06-05 03:47:23,327 INFO L78 Accepts]: Start accepts. Automaton has 5257 states and 24779 transitions. Word has length 29 [2021-06-05 03:47:23,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:23,328 INFO L482 AbstractCegarLoop]: Abstraction has 5257 states and 24779 transitions. [2021-06-05 03:47:23,328 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:23,328 INFO L276 IsEmpty]: Start isEmpty. Operand 5257 states and 24779 transitions. [2021-06-05 03:47:23,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:23,336 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:23,336 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:23,336 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1011 [2021-06-05 03:47:23,336 INFO L430 AbstractCegarLoop]: === Iteration 1013 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:23,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:23,337 INFO L82 PathProgramCache]: Analyzing trace with hash -1758943861, now seen corresponding path program 1008 times [2021-06-05 03:47:23,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:23,337 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911818964] [2021-06-05 03:47:23,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:23,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:23,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:23,469 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:23,469 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911818964] [2021-06-05 03:47:23,469 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911818964] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:23,470 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:23,470 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:23,470 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078841305] [2021-06-05 03:47:23,470 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:23,470 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:23,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:23,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:23,470 INFO L87 Difference]: Start difference. First operand 5257 states and 24779 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:23,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:23,581 INFO L93 Difference]: Finished difference Result 10965 states and 49123 transitions. [2021-06-05 03:47:23,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:23,582 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:23,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:23,607 INFO L225 Difference]: With dead ends: 10965 [2021-06-05 03:47:23,607 INFO L226 Difference]: Without dead ends: 10334 [2021-06-05 03:47:23,607 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 156.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:23,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10334 states. [2021-06-05 03:47:23,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10334 to 5089. [2021-06-05 03:47:23,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5089 states, 5088 states have (on average 4.75373427672956) internal successors, (24187), 5088 states have internal predecessors, (24187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:23,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5089 states to 5089 states and 24187 transitions. [2021-06-05 03:47:23,831 INFO L78 Accepts]: Start accepts. Automaton has 5089 states and 24187 transitions. Word has length 29 [2021-06-05 03:47:23,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:23,831 INFO L482 AbstractCegarLoop]: Abstraction has 5089 states and 24187 transitions. [2021-06-05 03:47:23,831 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:23,831 INFO L276 IsEmpty]: Start isEmpty. Operand 5089 states and 24187 transitions. [2021-06-05 03:47:23,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:23,839 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:23,840 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:23,840 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1012 [2021-06-05 03:47:23,840 INFO L430 AbstractCegarLoop]: === Iteration 1014 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:23,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:23,840 INFO L82 PathProgramCache]: Analyzing trace with hash -217039861, now seen corresponding path program 1009 times [2021-06-05 03:47:23,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:23,840 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007018987] [2021-06-05 03:47:23,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:23,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:23,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:23,971 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:23,971 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007018987] [2021-06-05 03:47:23,971 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007018987] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:23,971 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:23,971 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:23,971 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041506892] [2021-06-05 03:47:23,971 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:23,971 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:23,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:23,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:23,971 INFO L87 Difference]: Start difference. First operand 5089 states and 24187 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:24,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:24,088 INFO L93 Difference]: Finished difference Result 11077 states and 49447 transitions. [2021-06-05 03:47:24,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:24,088 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:24,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:24,115 INFO L225 Difference]: With dead ends: 11077 [2021-06-05 03:47:24,115 INFO L226 Difference]: Without dead ends: 10662 [2021-06-05 03:47:24,115 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 154.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:24,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10662 states. [2021-06-05 03:47:24,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10662 to 5217. [2021-06-05 03:47:24,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5217 states, 5216 states have (on average 4.745973926380368) internal successors, (24755), 5216 states have internal predecessors, (24755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:24,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5217 states to 5217 states and 24755 transitions. [2021-06-05 03:47:24,347 INFO L78 Accepts]: Start accepts. Automaton has 5217 states and 24755 transitions. Word has length 29 [2021-06-05 03:47:24,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:24,347 INFO L482 AbstractCegarLoop]: Abstraction has 5217 states and 24755 transitions. [2021-06-05 03:47:24,347 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:24,347 INFO L276 IsEmpty]: Start isEmpty. Operand 5217 states and 24755 transitions. [2021-06-05 03:47:24,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:24,356 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:24,356 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:24,356 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1013 [2021-06-05 03:47:24,357 INFO L430 AbstractCegarLoop]: === Iteration 1015 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:24,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:24,357 INFO L82 PathProgramCache]: Analyzing trace with hash 1537780747, now seen corresponding path program 1010 times [2021-06-05 03:47:24,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:24,357 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889329536] [2021-06-05 03:47:24,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:24,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:24,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:24,491 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:24,491 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889329536] [2021-06-05 03:47:24,491 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889329536] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:24,491 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:24,491 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:24,491 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634626079] [2021-06-05 03:47:24,491 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:24,491 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:24,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:24,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:24,491 INFO L87 Difference]: Start difference. First operand 5217 states and 24755 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:24,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:24,591 INFO L93 Difference]: Finished difference Result 11204 states and 49926 transitions. [2021-06-05 03:47:24,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:24,591 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:24,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:24,618 INFO L225 Difference]: With dead ends: 11204 [2021-06-05 03:47:24,618 INFO L226 Difference]: Without dead ends: 10582 [2021-06-05 03:47:24,618 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 141.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:24,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10582 states. [2021-06-05 03:47:24,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10582 to 5137. [2021-06-05 03:47:24,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5137 states, 5136 states have (on average 4.75136292834891) internal successors, (24403), 5136 states have internal predecessors, (24403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:24,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5137 states to 5137 states and 24403 transitions. [2021-06-05 03:47:24,846 INFO L78 Accepts]: Start accepts. Automaton has 5137 states and 24403 transitions. Word has length 29 [2021-06-05 03:47:24,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:24,846 INFO L482 AbstractCegarLoop]: Abstraction has 5137 states and 24403 transitions. [2021-06-05 03:47:24,846 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:24,846 INFO L276 IsEmpty]: Start isEmpty. Operand 5137 states and 24403 transitions. [2021-06-05 03:47:24,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:24,854 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:24,854 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:24,855 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1014 [2021-06-05 03:47:24,855 INFO L430 AbstractCegarLoop]: === Iteration 1016 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:24,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:24,855 INFO L82 PathProgramCache]: Analyzing trace with hash -132251863, now seen corresponding path program 1011 times [2021-06-05 03:47:24,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:24,855 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527178550] [2021-06-05 03:47:24,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:24,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:24,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:24,979 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:24,979 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527178550] [2021-06-05 03:47:24,979 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527178550] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:24,979 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:24,979 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:24,979 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537773611] [2021-06-05 03:47:24,979 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:24,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:24,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:24,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:24,979 INFO L87 Difference]: Start difference. First operand 5137 states and 24403 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:25,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:25,093 INFO L93 Difference]: Finished difference Result 10902 states and 48664 transitions. [2021-06-05 03:47:25,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:25,093 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:25,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:25,119 INFO L225 Difference]: With dead ends: 10902 [2021-06-05 03:47:25,119 INFO L226 Difference]: Without dead ends: 10487 [2021-06-05 03:47:25,120 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 147.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:25,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10487 states. [2021-06-05 03:47:25,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10487 to 5169. [2021-06-05 03:47:25,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5169 states, 5168 states have (on average 4.743614551083591) internal successors, (24515), 5168 states have internal predecessors, (24515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:25,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5169 states to 5169 states and 24515 transitions. [2021-06-05 03:47:25,346 INFO L78 Accepts]: Start accepts. Automaton has 5169 states and 24515 transitions. Word has length 29 [2021-06-05 03:47:25,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:25,346 INFO L482 AbstractCegarLoop]: Abstraction has 5169 states and 24515 transitions. [2021-06-05 03:47:25,346 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:25,346 INFO L276 IsEmpty]: Start isEmpty. Operand 5169 states and 24515 transitions. [2021-06-05 03:47:25,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:25,355 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:25,355 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:25,355 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1015 [2021-06-05 03:47:25,355 INFO L430 AbstractCegarLoop]: === Iteration 1017 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:25,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:25,355 INFO L82 PathProgramCache]: Analyzing trace with hash 1760594439, now seen corresponding path program 1012 times [2021-06-05 03:47:25,355 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:25,355 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065186373] [2021-06-05 03:47:25,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:25,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:25,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:25,479 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:25,479 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065186373] [2021-06-05 03:47:25,479 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065186373] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:25,479 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:25,479 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:25,479 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776559372] [2021-06-05 03:47:25,479 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:25,479 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:25,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:25,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:25,479 INFO L87 Difference]: Start difference. First operand 5169 states and 24515 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:25,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:25,582 INFO L93 Difference]: Finished difference Result 10902 states and 48632 transitions. [2021-06-05 03:47:25,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:25,582 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:25,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:25,608 INFO L225 Difference]: With dead ends: 10902 [2021-06-05 03:47:25,608 INFO L226 Difference]: Without dead ends: 10455 [2021-06-05 03:47:25,608 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 130.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:25,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10455 states. [2021-06-05 03:47:25,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10455 to 5137. [2021-06-05 03:47:25,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5137 states, 5136 states have (on average 4.7482476635514015) internal successors, (24387), 5136 states have internal predecessors, (24387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:25,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5137 states to 5137 states and 24387 transitions. [2021-06-05 03:47:25,835 INFO L78 Accepts]: Start accepts. Automaton has 5137 states and 24387 transitions. Word has length 29 [2021-06-05 03:47:25,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:25,835 INFO L482 AbstractCegarLoop]: Abstraction has 5137 states and 24387 transitions. [2021-06-05 03:47:25,835 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:25,835 INFO L276 IsEmpty]: Start isEmpty. Operand 5137 states and 24387 transitions. [2021-06-05 03:47:25,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:25,844 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:25,844 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:25,844 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1016 [2021-06-05 03:47:25,844 INFO L430 AbstractCegarLoop]: === Iteration 1018 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:25,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:25,844 INFO L82 PathProgramCache]: Analyzing trace with hash -1812769307, now seen corresponding path program 1013 times [2021-06-05 03:47:25,844 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:25,844 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341556202] [2021-06-05 03:47:25,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:25,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:25,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:25,975 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:25,975 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341556202] [2021-06-05 03:47:25,975 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341556202] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:25,975 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:25,975 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:25,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402831919] [2021-06-05 03:47:25,976 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:25,976 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:25,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:25,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:25,976 INFO L87 Difference]: Start difference. First operand 5137 states and 24387 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:26,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:26,072 INFO L93 Difference]: Finished difference Result 11204 states and 49926 transitions. [2021-06-05 03:47:26,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:26,073 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:26,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:26,099 INFO L225 Difference]: With dead ends: 11204 [2021-06-05 03:47:26,099 INFO L226 Difference]: Without dead ends: 10662 [2021-06-05 03:47:26,099 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 138.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:26,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10662 states. [2021-06-05 03:47:26,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10662 to 5217. [2021-06-05 03:47:26,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5217 states, 5216 states have (on average 4.730636503067485) internal successors, (24675), 5216 states have internal predecessors, (24675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:26,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5217 states to 5217 states and 24675 transitions. [2021-06-05 03:47:26,330 INFO L78 Accepts]: Start accepts. Automaton has 5217 states and 24675 transitions. Word has length 29 [2021-06-05 03:47:26,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:26,330 INFO L482 AbstractCegarLoop]: Abstraction has 5217 states and 24675 transitions. [2021-06-05 03:47:26,330 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:26,330 INFO L276 IsEmpty]: Start isEmpty. Operand 5217 states and 24675 transitions. [2021-06-05 03:47:26,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:26,339 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:26,339 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:26,339 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1017 [2021-06-05 03:47:26,339 INFO L430 AbstractCegarLoop]: === Iteration 1019 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:26,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:26,339 INFO L82 PathProgramCache]: Analyzing trace with hash -2019577273, now seen corresponding path program 1014 times [2021-06-05 03:47:26,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:26,339 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580387208] [2021-06-05 03:47:26,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:26,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:26,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:26,473 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:26,473 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580387208] [2021-06-05 03:47:26,473 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580387208] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:26,473 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:26,473 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:26,473 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69956235] [2021-06-05 03:47:26,473 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:26,473 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:26,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:26,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:26,474 INFO L87 Difference]: Start difference. First operand 5217 states and 24675 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:26,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:26,579 INFO L93 Difference]: Finished difference Result 11077 states and 49319 transitions. [2021-06-05 03:47:26,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:26,579 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:26,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:26,608 INFO L225 Difference]: With dead ends: 11077 [2021-06-05 03:47:26,608 INFO L226 Difference]: Without dead ends: 10550 [2021-06-05 03:47:26,609 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 140.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:26,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10550 states. [2021-06-05 03:47:26,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10550 to 5105. [2021-06-05 03:47:26,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5105 states, 5104 states have (on average 4.752938871473354) internal successors, (24259), 5104 states have internal predecessors, (24259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:26,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 24259 transitions. [2021-06-05 03:47:26,847 INFO L78 Accepts]: Start accepts. Automaton has 5105 states and 24259 transitions. Word has length 29 [2021-06-05 03:47:26,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:26,847 INFO L482 AbstractCegarLoop]: Abstraction has 5105 states and 24259 transitions. [2021-06-05 03:47:26,847 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:26,847 INFO L276 IsEmpty]: Start isEmpty. Operand 5105 states and 24259 transitions. [2021-06-05 03:47:26,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:26,856 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:26,856 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:26,856 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1018 [2021-06-05 03:47:26,856 INFO L430 AbstractCegarLoop]: === Iteration 1020 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:26,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:26,856 INFO L82 PathProgramCache]: Analyzing trace with hash -705145495, now seen corresponding path program 1015 times [2021-06-05 03:47:26,856 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:26,856 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138294658] [2021-06-05 03:47:26,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:26,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:26,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:26,992 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:26,992 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138294658] [2021-06-05 03:47:26,992 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138294658] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:26,992 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:26,992 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:26,992 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210196151] [2021-06-05 03:47:26,992 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:26,992 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:26,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:26,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:26,992 INFO L87 Difference]: Start difference. First operand 5105 states and 24259 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:27,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:27,109 INFO L93 Difference]: Finished difference Result 11093 states and 49535 transitions. [2021-06-05 03:47:27,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:27,110 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:27,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:27,136 INFO L225 Difference]: With dead ends: 11093 [2021-06-05 03:47:27,136 INFO L226 Difference]: Without dead ends: 10678 [2021-06-05 03:47:27,136 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 159.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:27,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10678 states. [2021-06-05 03:47:27,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10678 to 5225. [2021-06-05 03:47:27,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5225 states, 5224 states have (on average 4.74406584992343) internal successors, (24783), 5224 states have internal predecessors, (24783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:27,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5225 states to 5225 states and 24783 transitions. [2021-06-05 03:47:27,366 INFO L78 Accepts]: Start accepts. Automaton has 5225 states and 24783 transitions. Word has length 29 [2021-06-05 03:47:27,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:27,366 INFO L482 AbstractCegarLoop]: Abstraction has 5225 states and 24783 transitions. [2021-06-05 03:47:27,366 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:27,366 INFO L276 IsEmpty]: Start isEmpty. Operand 5225 states and 24783 transitions. [2021-06-05 03:47:27,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:27,375 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:27,375 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:27,375 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1019 [2021-06-05 03:47:27,375 INFO L430 AbstractCegarLoop]: === Iteration 1021 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:27,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:27,375 INFO L82 PathProgramCache]: Analyzing trace with hash 1049675113, now seen corresponding path program 1016 times [2021-06-05 03:47:27,375 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:27,375 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957841265] [2021-06-05 03:47:27,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:27,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:27,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:27,512 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:27,512 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957841265] [2021-06-05 03:47:27,512 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957841265] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:27,512 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:27,512 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:27,513 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544130492] [2021-06-05 03:47:27,513 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:27,513 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:27,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:27,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:27,513 INFO L87 Difference]: Start difference. First operand 5225 states and 24783 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:27,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:27,615 INFO L93 Difference]: Finished difference Result 11220 states and 50014 transitions. [2021-06-05 03:47:27,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:27,615 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:27,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:27,642 INFO L225 Difference]: With dead ends: 11220 [2021-06-05 03:47:27,642 INFO L226 Difference]: Without dead ends: 10598 [2021-06-05 03:47:27,642 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 144.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:27,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10598 states. [2021-06-05 03:47:27,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10598 to 5145. [2021-06-05 03:47:27,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5145 states, 5144 states have (on average 4.747861586314152) internal successors, (24423), 5144 states have internal predecessors, (24423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:27,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5145 states to 5145 states and 24423 transitions. [2021-06-05 03:47:27,871 INFO L78 Accepts]: Start accepts. Automaton has 5145 states and 24423 transitions. Word has length 29 [2021-06-05 03:47:27,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:27,871 INFO L482 AbstractCegarLoop]: Abstraction has 5145 states and 24423 transitions. [2021-06-05 03:47:27,871 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:27,871 INFO L276 IsEmpty]: Start isEmpty. Operand 5145 states and 24423 transitions. [2021-06-05 03:47:27,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:27,879 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:27,879 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:27,879 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1020 [2021-06-05 03:47:27,880 INFO L430 AbstractCegarLoop]: === Iteration 1022 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:27,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:27,880 INFO L82 PathProgramCache]: Analyzing trace with hash -1303873367, now seen corresponding path program 1017 times [2021-06-05 03:47:27,880 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:27,880 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686677659] [2021-06-05 03:47:27,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:27,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:28,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:28,008 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:28,008 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686677659] [2021-06-05 03:47:28,008 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686677659] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:28,008 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:28,008 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:28,008 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397517038] [2021-06-05 03:47:28,008 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:28,008 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:28,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:28,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:28,009 INFO L87 Difference]: Start difference. First operand 5145 states and 24423 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:28,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:28,120 INFO L93 Difference]: Finished difference Result 10886 states and 48648 transitions. [2021-06-05 03:47:28,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:28,120 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:28,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:28,146 INFO L225 Difference]: With dead ends: 10886 [2021-06-05 03:47:28,146 INFO L226 Difference]: Without dead ends: 10471 [2021-06-05 03:47:28,146 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 153.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:28,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10471 states. [2021-06-05 03:47:28,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10471 to 5193. [2021-06-05 03:47:28,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5193 states, 5192 states have (on average 4.73786594761171) internal successors, (24599), 5192 states have internal predecessors, (24599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:28,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5193 states to 5193 states and 24599 transitions. [2021-06-05 03:47:28,374 INFO L78 Accepts]: Start accepts. Automaton has 5193 states and 24599 transitions. Word has length 29 [2021-06-05 03:47:28,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:28,374 INFO L482 AbstractCegarLoop]: Abstraction has 5193 states and 24599 transitions. [2021-06-05 03:47:28,374 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:28,374 INFO L276 IsEmpty]: Start isEmpty. Operand 5193 states and 24599 transitions. [2021-06-05 03:47:28,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:28,383 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:28,383 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:28,383 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1021 [2021-06-05 03:47:28,383 INFO L430 AbstractCegarLoop]: === Iteration 1023 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:28,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:28,383 INFO L82 PathProgramCache]: Analyzing trace with hash 1245069131, now seen corresponding path program 1018 times [2021-06-05 03:47:28,383 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:28,383 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70556628] [2021-06-05 03:47:28,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:28,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:28,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:28,511 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:28,511 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70556628] [2021-06-05 03:47:28,511 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70556628] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:28,511 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:28,511 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:28,511 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320322366] [2021-06-05 03:47:28,512 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:28,512 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:28,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:28,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:28,512 INFO L87 Difference]: Start difference. First operand 5193 states and 24599 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:28,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:28,627 INFO L93 Difference]: Finished difference Result 10614 states and 47639 transitions. [2021-06-05 03:47:28,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:28,628 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:28,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:28,653 INFO L225 Difference]: With dead ends: 10614 [2021-06-05 03:47:28,653 INFO L226 Difference]: Without dead ends: 10103 [2021-06-05 03:47:28,653 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 151.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:28,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10103 states. [2021-06-05 03:47:28,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10103 to 5145. [2021-06-05 03:47:28,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5145 states, 5144 states have (on average 4.743195956454121) internal successors, (24399), 5144 states have internal predecessors, (24399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:28,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5145 states to 5145 states and 24399 transitions. [2021-06-05 03:47:28,874 INFO L78 Accepts]: Start accepts. Automaton has 5145 states and 24399 transitions. Word has length 29 [2021-06-05 03:47:28,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:28,874 INFO L482 AbstractCegarLoop]: Abstraction has 5145 states and 24399 transitions. [2021-06-05 03:47:28,874 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:28,874 INFO L276 IsEmpty]: Start isEmpty. Operand 5145 states and 24399 transitions. [2021-06-05 03:47:28,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:28,883 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:28,883 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:28,883 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1022 [2021-06-05 03:47:28,883 INFO L430 AbstractCegarLoop]: === Iteration 1024 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:28,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:28,883 INFO L82 PathProgramCache]: Analyzing trace with hash 639500107, now seen corresponding path program 1019 times [2021-06-05 03:47:28,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:28,883 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184726446] [2021-06-05 03:47:28,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:28,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:29,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:29,025 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:29,025 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184726446] [2021-06-05 03:47:29,025 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184726446] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:29,025 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:29,025 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:29,025 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422905611] [2021-06-05 03:47:29,025 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:29,025 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:29,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:29,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:29,025 INFO L87 Difference]: Start difference. First operand 5145 states and 24399 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:29,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:29,128 INFO L93 Difference]: Finished difference Result 11069 states and 49419 transitions. [2021-06-05 03:47:29,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:29,128 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:29,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:29,154 INFO L225 Difference]: With dead ends: 11069 [2021-06-05 03:47:29,155 INFO L226 Difference]: Without dead ends: 10527 [2021-06-05 03:47:29,155 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 148.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:29,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10527 states. [2021-06-05 03:47:29,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10527 to 5249. [2021-06-05 03:47:29,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5249 states, 5248 states have (on average 4.723132621951219) internal successors, (24787), 5248 states have internal predecessors, (24787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:29,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5249 states to 5249 states and 24787 transitions. [2021-06-05 03:47:29,383 INFO L78 Accepts]: Start accepts. Automaton has 5249 states and 24787 transitions. Word has length 29 [2021-06-05 03:47:29,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:29,384 INFO L482 AbstractCegarLoop]: Abstraction has 5249 states and 24787 transitions. [2021-06-05 03:47:29,384 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:29,384 INFO L276 IsEmpty]: Start isEmpty. Operand 5249 states and 24787 transitions. [2021-06-05 03:47:29,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:29,393 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:29,394 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:29,394 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1023 [2021-06-05 03:47:29,394 INFO L430 AbstractCegarLoop]: === Iteration 1025 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:29,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:29,394 INFO L82 PathProgramCache]: Analyzing trace with hash 1200932905, now seen corresponding path program 1020 times [2021-06-05 03:47:29,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:29,394 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028416657] [2021-06-05 03:47:29,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:29,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:29,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:29,536 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:29,536 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028416657] [2021-06-05 03:47:29,536 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028416657] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:29,536 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:29,536 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:29,536 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846063959] [2021-06-05 03:47:29,536 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:29,536 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:29,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:29,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:29,536 INFO L87 Difference]: Start difference. First operand 5249 states and 24787 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:29,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:29,649 INFO L93 Difference]: Finished difference Result 10670 states and 47827 transitions. [2021-06-05 03:47:29,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:29,649 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:29,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:29,674 INFO L225 Difference]: With dead ends: 10670 [2021-06-05 03:47:29,674 INFO L226 Difference]: Without dead ends: 10063 [2021-06-05 03:47:29,675 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 165.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:29,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10063 states. [2021-06-05 03:47:29,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10063 to 5105. [2021-06-05 03:47:29,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5105 states, 5104 states have (on average 4.74980407523511) internal successors, (24243), 5104 states have internal predecessors, (24243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:29,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 24243 transitions. [2021-06-05 03:47:29,900 INFO L78 Accepts]: Start accepts. Automaton has 5105 states and 24243 transitions. Word has length 29 [2021-06-05 03:47:29,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:29,900 INFO L482 AbstractCegarLoop]: Abstraction has 5105 states and 24243 transitions. [2021-06-05 03:47:29,900 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:29,900 INFO L276 IsEmpty]: Start isEmpty. Operand 5105 states and 24243 transitions. [2021-06-05 03:47:29,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:29,908 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:29,908 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:29,908 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1024 [2021-06-05 03:47:29,908 INFO L430 AbstractCegarLoop]: === Iteration 1026 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:29,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:29,909 INFO L82 PathProgramCache]: Analyzing trace with hash 165067847, now seen corresponding path program 1021 times [2021-06-05 03:47:29,909 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:29,909 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424329067] [2021-06-05 03:47:29,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:29,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:30,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:30,027 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:30,027 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424329067] [2021-06-05 03:47:30,027 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424329067] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:30,027 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:30,028 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:30,028 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60553450] [2021-06-05 03:47:30,028 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:30,028 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:30,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:30,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:30,028 INFO L87 Difference]: Start difference. First operand 5105 states and 24243 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:30,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:30,155 INFO L93 Difference]: Finished difference Result 10711 states and 47849 transitions. [2021-06-05 03:47:30,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:30,156 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:30,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:30,181 INFO L225 Difference]: With dead ends: 10711 [2021-06-05 03:47:30,181 INFO L226 Difference]: Without dead ends: 10296 [2021-06-05 03:47:30,181 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 142.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:30,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10296 states. [2021-06-05 03:47:30,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10296 to 5153. [2021-06-05 03:47:30,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 5152 states have (on average 4.742818322981367) internal successors, (24435), 5152 states have internal predecessors, (24435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:30,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 24435 transitions. [2021-06-05 03:47:30,405 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 24435 transitions. Word has length 29 [2021-06-05 03:47:30,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:30,405 INFO L482 AbstractCegarLoop]: Abstraction has 5153 states and 24435 transitions. [2021-06-05 03:47:30,405 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:30,406 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 24435 transitions. [2021-06-05 03:47:30,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:30,414 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:30,414 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:30,414 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1025 [2021-06-05 03:47:30,414 INFO L430 AbstractCegarLoop]: === Iteration 1027 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:30,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:30,414 INFO L82 PathProgramCache]: Analyzing trace with hash 2057914149, now seen corresponding path program 1022 times [2021-06-05 03:47:30,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:30,414 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254219698] [2021-06-05 03:47:30,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:30,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:30,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:30,533 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:30,533 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254219698] [2021-06-05 03:47:30,533 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254219698] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:30,533 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:30,533 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:30,533 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601648457] [2021-06-05 03:47:30,533 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:30,533 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:30,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:30,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:30,534 INFO L87 Difference]: Start difference. First operand 5153 states and 24435 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:30,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:30,630 INFO L93 Difference]: Finished difference Result 10711 states and 47817 transitions. [2021-06-05 03:47:30,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:30,630 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:30,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:30,655 INFO L225 Difference]: With dead ends: 10711 [2021-06-05 03:47:30,656 INFO L226 Difference]: Without dead ends: 10264 [2021-06-05 03:47:30,656 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 126.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:30,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10264 states. [2021-06-05 03:47:30,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10264 to 5121. [2021-06-05 03:47:30,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5121 states, 5120 states have (on average 4.7474609375) internal successors, (24307), 5120 states have internal predecessors, (24307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:30,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5121 states to 5121 states and 24307 transitions. [2021-06-05 03:47:30,879 INFO L78 Accepts]: Start accepts. Automaton has 5121 states and 24307 transitions. Word has length 29 [2021-06-05 03:47:30,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:30,879 INFO L482 AbstractCegarLoop]: Abstraction has 5121 states and 24307 transitions. [2021-06-05 03:47:30,879 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:30,879 INFO L276 IsEmpty]: Start isEmpty. Operand 5121 states and 24307 transitions. [2021-06-05 03:47:30,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:30,887 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:30,887 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:30,887 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1026 [2021-06-05 03:47:30,887 INFO L430 AbstractCegarLoop]: === Iteration 1028 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:30,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:30,888 INFO L82 PathProgramCache]: Analyzing trace with hash -1701949527, now seen corresponding path program 1023 times [2021-06-05 03:47:30,888 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:30,888 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221642569] [2021-06-05 03:47:30,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:30,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:31,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:31,005 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:31,006 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221642569] [2021-06-05 03:47:31,006 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221642569] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:31,006 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:31,006 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:31,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184230828] [2021-06-05 03:47:31,006 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:31,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:31,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:31,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:31,006 INFO L87 Difference]: Start difference. First operand 5121 states and 24307 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:31,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:31,124 INFO L93 Difference]: Finished difference Result 10679 states and 47737 transitions. [2021-06-05 03:47:31,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:31,124 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:31,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:31,149 INFO L225 Difference]: With dead ends: 10679 [2021-06-05 03:47:31,149 INFO L226 Difference]: Without dead ends: 10264 [2021-06-05 03:47:31,150 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 142.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:31,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10264 states. [2021-06-05 03:47:31,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10264 to 5169. [2021-06-05 03:47:31,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5169 states, 5168 states have (on average 4.737422600619195) internal successors, (24483), 5168 states have internal predecessors, (24483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:31,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5169 states to 5169 states and 24483 transitions. [2021-06-05 03:47:31,408 INFO L78 Accepts]: Start accepts. Automaton has 5169 states and 24483 transitions. Word has length 29 [2021-06-05 03:47:31,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:31,408 INFO L482 AbstractCegarLoop]: Abstraction has 5169 states and 24483 transitions. [2021-06-05 03:47:31,408 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:31,408 INFO L276 IsEmpty]: Start isEmpty. Operand 5169 states and 24483 transitions. [2021-06-05 03:47:31,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:31,416 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:31,416 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:31,417 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1027 [2021-06-05 03:47:31,417 INFO L430 AbstractCegarLoop]: === Iteration 1029 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:31,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:31,417 INFO L82 PathProgramCache]: Analyzing trace with hash 1121956585, now seen corresponding path program 1024 times [2021-06-05 03:47:31,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:31,417 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369189080] [2021-06-05 03:47:31,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:31,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:31,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:31,534 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:31,534 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369189080] [2021-06-05 03:47:31,534 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369189080] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:31,534 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:31,534 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:31,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957113511] [2021-06-05 03:47:31,534 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:31,534 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:31,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:31,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:31,534 INFO L87 Difference]: Start difference. First operand 5169 states and 24483 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:31,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:31,651 INFO L93 Difference]: Finished difference Result 10407 states and 46728 transitions. [2021-06-05 03:47:31,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:31,651 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:31,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:31,675 INFO L225 Difference]: With dead ends: 10407 [2021-06-05 03:47:31,675 INFO L226 Difference]: Without dead ends: 9896 [2021-06-05 03:47:31,675 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 140.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:31,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9896 states. [2021-06-05 03:47:31,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9896 to 5121. [2021-06-05 03:47:31,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5121 states, 5120 states have (on average 4.7443359375) internal successors, (24291), 5120 states have internal predecessors, (24291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:31,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5121 states to 5121 states and 24291 transitions. [2021-06-05 03:47:31,898 INFO L78 Accepts]: Start accepts. Automaton has 5121 states and 24291 transitions. Word has length 29 [2021-06-05 03:47:31,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:31,898 INFO L482 AbstractCegarLoop]: Abstraction has 5121 states and 24291 transitions. [2021-06-05 03:47:31,898 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:31,898 INFO L276 IsEmpty]: Start isEmpty. Operand 5121 states and 24291 transitions. [2021-06-05 03:47:31,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:31,907 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:31,907 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:31,907 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1028 [2021-06-05 03:47:31,907 INFO L430 AbstractCegarLoop]: === Iteration 1030 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:31,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:31,907 INFO L82 PathProgramCache]: Analyzing trace with hash -1997462619, now seen corresponding path program 1025 times [2021-06-05 03:47:31,907 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:31,907 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940446734] [2021-06-05 03:47:31,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:31,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:32,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:32,022 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:32,022 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940446734] [2021-06-05 03:47:32,022 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940446734] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:32,022 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:32,022 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:32,023 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959187131] [2021-06-05 03:47:32,023 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:32,023 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:32,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:32,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:32,023 INFO L87 Difference]: Start difference. First operand 5121 states and 24291 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:32,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:32,122 INFO L93 Difference]: Finished difference Result 10679 states and 47721 transitions. [2021-06-05 03:47:32,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:32,122 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:32,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:32,148 INFO L225 Difference]: With dead ends: 10679 [2021-06-05 03:47:32,148 INFO L226 Difference]: Without dead ends: 10264 [2021-06-05 03:47:32,149 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 122.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:32,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10264 states. [2021-06-05 03:47:32,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10264 to 5169. [2021-06-05 03:47:32,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5169 states, 5168 states have (on average 4.734326625386997) internal successors, (24467), 5168 states have internal predecessors, (24467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:32,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5169 states to 5169 states and 24467 transitions. [2021-06-05 03:47:32,373 INFO L78 Accepts]: Start accepts. Automaton has 5169 states and 24467 transitions. Word has length 29 [2021-06-05 03:47:32,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:32,373 INFO L482 AbstractCegarLoop]: Abstraction has 5169 states and 24467 transitions. [2021-06-05 03:47:32,373 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:32,373 INFO L276 IsEmpty]: Start isEmpty. Operand 5169 states and 24467 transitions. [2021-06-05 03:47:32,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:32,381 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:32,381 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:32,381 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1029 [2021-06-05 03:47:32,381 INFO L430 AbstractCegarLoop]: === Iteration 1031 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:32,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:32,381 INFO L82 PathProgramCache]: Analyzing trace with hash 802826119, now seen corresponding path program 1026 times [2021-06-05 03:47:32,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:32,382 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337683188] [2021-06-05 03:47:32,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:32,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:32,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:32,496 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:32,496 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337683188] [2021-06-05 03:47:32,496 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337683188] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:32,496 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:32,497 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:32,497 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656675749] [2021-06-05 03:47:32,497 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:32,497 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:32,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:32,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:32,497 INFO L87 Difference]: Start difference. First operand 5169 states and 24467 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:32,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:32,612 INFO L93 Difference]: Finished difference Result 10407 states and 46712 transitions. [2021-06-05 03:47:32,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:32,612 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:32,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:32,637 INFO L225 Difference]: With dead ends: 10407 [2021-06-05 03:47:32,637 INFO L226 Difference]: Without dead ends: 9880 [2021-06-05 03:47:32,637 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 138.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:32,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9880 states. [2021-06-05 03:47:32,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9880 to 5105. [2021-06-05 03:47:32,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5105 states, 5104 states have (on average 4.748236677115988) internal successors, (24235), 5104 states have internal predecessors, (24235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:32,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 24235 transitions. [2021-06-05 03:47:32,863 INFO L78 Accepts]: Start accepts. Automaton has 5105 states and 24235 transitions. Word has length 29 [2021-06-05 03:47:32,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:32,863 INFO L482 AbstractCegarLoop]: Abstraction has 5105 states and 24235 transitions. [2021-06-05 03:47:32,863 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:32,863 INFO L276 IsEmpty]: Start isEmpty. Operand 5105 states and 24235 transitions. [2021-06-05 03:47:32,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:32,872 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:32,872 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:32,872 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1030 [2021-06-05 03:47:32,872 INFO L430 AbstractCegarLoop]: === Iteration 1032 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:32,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:32,873 INFO L82 PathProgramCache]: Analyzing trace with hash -1455742973, now seen corresponding path program 1027 times [2021-06-05 03:47:32,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:32,873 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270022893] [2021-06-05 03:47:32,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:32,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:33,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:33,007 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:33,007 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270022893] [2021-06-05 03:47:33,007 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270022893] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:33,007 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:33,007 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:33,007 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707859892] [2021-06-05 03:47:33,007 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:33,007 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:33,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:33,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:33,007 INFO L87 Difference]: Start difference. First operand 5105 states and 24235 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:33,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:33,120 INFO L93 Difference]: Finished difference Result 11220 states and 50038 transitions. [2021-06-05 03:47:33,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:33,120 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:33,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:33,147 INFO L225 Difference]: With dead ends: 11220 [2021-06-05 03:47:33,147 INFO L226 Difference]: Without dead ends: 10678 [2021-06-05 03:47:33,147 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 140.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:33,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10678 states. [2021-06-05 03:47:33,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10678 to 5225. [2021-06-05 03:47:33,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5225 states, 5224 states have (on average 4.733346094946401) internal successors, (24727), 5224 states have internal predecessors, (24727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:33,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5225 states to 5225 states and 24727 transitions. [2021-06-05 03:47:33,377 INFO L78 Accepts]: Start accepts. Automaton has 5225 states and 24727 transitions. Word has length 29 [2021-06-05 03:47:33,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:33,377 INFO L482 AbstractCegarLoop]: Abstraction has 5225 states and 24727 transitions. [2021-06-05 03:47:33,377 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:33,378 INFO L276 IsEmpty]: Start isEmpty. Operand 5225 states and 24727 transitions. [2021-06-05 03:47:33,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:33,386 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:33,386 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:33,387 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1031 [2021-06-05 03:47:33,387 INFO L430 AbstractCegarLoop]: === Iteration 1033 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:33,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:33,387 INFO L82 PathProgramCache]: Analyzing trace with hash -1662550939, now seen corresponding path program 1028 times [2021-06-05 03:47:33,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:33,387 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783710131] [2021-06-05 03:47:33,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:33,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:33,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:33,535 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:33,535 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783710131] [2021-06-05 03:47:33,535 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783710131] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:33,535 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:33,535 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:33,535 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886843063] [2021-06-05 03:47:33,535 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:33,535 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:33,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:33,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:33,535 INFO L87 Difference]: Start difference. First operand 5225 states and 24727 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:33,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:33,648 INFO L93 Difference]: Finished difference Result 11093 states and 49431 transitions. [2021-06-05 03:47:33,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:33,648 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:33,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:33,675 INFO L225 Difference]: With dead ends: 11093 [2021-06-05 03:47:33,676 INFO L226 Difference]: Without dead ends: 10598 [2021-06-05 03:47:33,676 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 151.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:33,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10598 states. [2021-06-05 03:47:33,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10598 to 5145. [2021-06-05 03:47:33,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5145 states, 5144 states have (on average 4.743195956454121) internal successors, (24399), 5144 states have internal predecessors, (24399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:33,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5145 states to 5145 states and 24399 transitions. [2021-06-05 03:47:33,906 INFO L78 Accepts]: Start accepts. Automaton has 5145 states and 24399 transitions. Word has length 29 [2021-06-05 03:47:33,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:33,906 INFO L482 AbstractCegarLoop]: Abstraction has 5145 states and 24399 transitions. [2021-06-05 03:47:33,906 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:33,906 INFO L276 IsEmpty]: Start isEmpty. Operand 5145 states and 24399 transitions. [2021-06-05 03:47:33,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:33,915 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:33,915 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:33,915 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1032 [2021-06-05 03:47:33,915 INFO L430 AbstractCegarLoop]: === Iteration 1034 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:33,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:33,915 INFO L82 PathProgramCache]: Analyzing trace with hash 972206949, now seen corresponding path program 1029 times [2021-06-05 03:47:33,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:33,915 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407612795] [2021-06-05 03:47:33,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:33,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:34,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:34,056 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:34,056 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407612795] [2021-06-05 03:47:34,056 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407612795] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:34,056 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:34,056 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:34,056 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374574944] [2021-06-05 03:47:34,056 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:34,056 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:34,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:34,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:34,056 INFO L87 Difference]: Start difference. First operand 5145 states and 24399 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:34,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:34,149 INFO L93 Difference]: Finished difference Result 11069 states and 49419 transitions. [2021-06-05 03:47:34,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:34,150 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:34,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:34,176 INFO L225 Difference]: With dead ends: 11069 [2021-06-05 03:47:34,176 INFO L226 Difference]: Without dead ends: 10527 [2021-06-05 03:47:34,176 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 148.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:34,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10527 states. [2021-06-05 03:47:34,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10527 to 5249. [2021-06-05 03:47:34,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5249 states, 5248 states have (on average 4.723132621951219) internal successors, (24787), 5248 states have internal predecessors, (24787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:34,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5249 states to 5249 states and 24787 transitions. [2021-06-05 03:47:34,407 INFO L78 Accepts]: Start accepts. Automaton has 5249 states and 24787 transitions. Word has length 29 [2021-06-05 03:47:34,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:34,407 INFO L482 AbstractCegarLoop]: Abstraction has 5249 states and 24787 transitions. [2021-06-05 03:47:34,407 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:34,408 INFO L276 IsEmpty]: Start isEmpty. Operand 5249 states and 24787 transitions. [2021-06-05 03:47:34,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:34,416 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:34,417 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:34,417 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1033 [2021-06-05 03:47:34,417 INFO L430 AbstractCegarLoop]: === Iteration 1035 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:34,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:34,417 INFO L82 PathProgramCache]: Analyzing trace with hash 1471718117, now seen corresponding path program 1030 times [2021-06-05 03:47:34,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:34,417 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791625510] [2021-06-05 03:47:34,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:34,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:34,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:34,559 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:34,559 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791625510] [2021-06-05 03:47:34,559 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791625510] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:34,560 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:34,560 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:34,560 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384997954] [2021-06-05 03:47:34,560 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:34,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:34,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:34,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:34,560 INFO L87 Difference]: Start difference. First operand 5249 states and 24787 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:34,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:34,673 INFO L93 Difference]: Finished difference Result 10670 states and 47827 transitions. [2021-06-05 03:47:34,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:34,674 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:34,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:34,699 INFO L225 Difference]: With dead ends: 10670 [2021-06-05 03:47:34,700 INFO L226 Difference]: Without dead ends: 10103 [2021-06-05 03:47:34,700 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 166.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:34,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10103 states. [2021-06-05 03:47:34,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10103 to 5145. [2021-06-05 03:47:34,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5145 states, 5144 states have (on average 4.735419906687403) internal successors, (24359), 5144 states have internal predecessors, (24359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:34,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5145 states to 5145 states and 24359 transitions. [2021-06-05 03:47:34,928 INFO L78 Accepts]: Start accepts. Automaton has 5145 states and 24359 transitions. Word has length 29 [2021-06-05 03:47:34,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:34,929 INFO L482 AbstractCegarLoop]: Abstraction has 5145 states and 24359 transitions. [2021-06-05 03:47:34,929 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:34,929 INFO L276 IsEmpty]: Start isEmpty. Operand 5145 states and 24359 transitions. [2021-06-05 03:47:34,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:34,937 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:34,938 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:34,938 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1034 [2021-06-05 03:47:34,938 INFO L430 AbstractCegarLoop]: === Iteration 1036 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:34,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:34,938 INFO L82 PathProgramCache]: Analyzing trace with hash -620716345, now seen corresponding path program 1031 times [2021-06-05 03:47:34,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:34,938 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632501197] [2021-06-05 03:47:34,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:34,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:35,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:35,066 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:35,066 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632501197] [2021-06-05 03:47:35,066 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632501197] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:35,066 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:35,066 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:35,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556915490] [2021-06-05 03:47:35,066 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:35,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:35,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:35,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:35,067 INFO L87 Difference]: Start difference. First operand 5145 states and 24359 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:35,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:35,162 INFO L93 Difference]: Finished difference Result 10886 states and 48584 transitions. [2021-06-05 03:47:35,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:35,162 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:35,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:35,189 INFO L225 Difference]: With dead ends: 10886 [2021-06-05 03:47:35,189 INFO L226 Difference]: Without dead ends: 10471 [2021-06-05 03:47:35,189 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 135.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:35,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10471 states. [2021-06-05 03:47:35,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10471 to 5193. [2021-06-05 03:47:35,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5193 states, 5192 states have (on average 4.725539291217257) internal successors, (24535), 5192 states have internal predecessors, (24535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:35,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5193 states to 5193 states and 24535 transitions. [2021-06-05 03:47:35,422 INFO L78 Accepts]: Start accepts. Automaton has 5193 states and 24535 transitions. Word has length 29 [2021-06-05 03:47:35,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:35,422 INFO L482 AbstractCegarLoop]: Abstraction has 5193 states and 24535 transitions. [2021-06-05 03:47:35,422 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:35,422 INFO L276 IsEmpty]: Start isEmpty. Operand 5193 states and 24535 transitions. [2021-06-05 03:47:35,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:35,431 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:35,431 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:35,431 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1035 [2021-06-05 03:47:35,431 INFO L430 AbstractCegarLoop]: === Iteration 1037 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:35,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:35,431 INFO L82 PathProgramCache]: Analyzing trace with hash 288888613, now seen corresponding path program 1032 times [2021-06-05 03:47:35,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:35,431 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83349137] [2021-06-05 03:47:35,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:35,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:35,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:35,560 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:35,560 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83349137] [2021-06-05 03:47:35,560 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83349137] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:35,560 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:35,560 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:35,560 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656144747] [2021-06-05 03:47:35,560 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:35,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:35,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:35,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:35,560 INFO L87 Difference]: Start difference. First operand 5193 states and 24535 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:35,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:35,683 INFO L93 Difference]: Finished difference Result 10614 states and 47575 transitions. [2021-06-05 03:47:35,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:35,683 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:35,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:35,709 INFO L225 Difference]: With dead ends: 10614 [2021-06-05 03:47:35,709 INFO L226 Difference]: Without dead ends: 10047 [2021-06-05 03:47:35,709 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 152.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:35,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10047 states. [2021-06-05 03:47:35,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10047 to 5089. [2021-06-05 03:47:35,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5089 states, 5088 states have (on average 4.752161949685535) internal successors, (24179), 5088 states have internal predecessors, (24179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:35,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5089 states to 5089 states and 24179 transitions. [2021-06-05 03:47:35,939 INFO L78 Accepts]: Start accepts. Automaton has 5089 states and 24179 transitions. Word has length 29 [2021-06-05 03:47:35,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:35,939 INFO L482 AbstractCegarLoop]: Abstraction has 5089 states and 24179 transitions. [2021-06-05 03:47:35,939 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:35,939 INFO L276 IsEmpty]: Start isEmpty. Operand 5089 states and 24179 transitions. [2021-06-05 03:47:35,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:35,948 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:35,948 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:35,948 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1036 [2021-06-05 03:47:35,948 INFO L430 AbstractCegarLoop]: === Iteration 1038 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:35,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:35,948 INFO L82 PathProgramCache]: Analyzing trace with hash 515638087, now seen corresponding path program 1033 times [2021-06-05 03:47:35,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:35,948 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531348198] [2021-06-05 03:47:35,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:35,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:36,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:36,084 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:36,084 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531348198] [2021-06-05 03:47:36,084 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531348198] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:36,084 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:36,084 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:36,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009015683] [2021-06-05 03:47:36,084 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:36,084 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:36,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:36,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:36,085 INFO L87 Difference]: Start difference. First operand 5089 states and 24179 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:36,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:36,202 INFO L93 Difference]: Finished difference Result 10634 states and 47517 transitions. [2021-06-05 03:47:36,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:36,202 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:36,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:36,228 INFO L225 Difference]: With dead ends: 10634 [2021-06-05 03:47:36,228 INFO L226 Difference]: Without dead ends: 10219 [2021-06-05 03:47:36,228 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 156.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:36,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10219 states. [2021-06-05 03:47:36,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10219 to 5161. [2021-06-05 03:47:36,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.743992248062016) internal successors, (24479), 5160 states have internal predecessors, (24479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:36,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24479 transitions. [2021-06-05 03:47:36,452 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24479 transitions. Word has length 29 [2021-06-05 03:47:36,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:36,452 INFO L482 AbstractCegarLoop]: Abstraction has 5161 states and 24479 transitions. [2021-06-05 03:47:36,452 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:36,452 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24479 transitions. [2021-06-05 03:47:36,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:36,461 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:36,461 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:36,461 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1037 [2021-06-05 03:47:36,461 INFO L430 AbstractCegarLoop]: === Iteration 1039 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:36,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:36,461 INFO L82 PathProgramCache]: Analyzing trace with hash 1232301033, now seen corresponding path program 1034 times [2021-06-05 03:47:36,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:36,461 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838353718] [2021-06-05 03:47:36,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:36,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:36,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:36,591 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:36,591 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838353718] [2021-06-05 03:47:36,592 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838353718] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:36,592 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:36,592 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:36,592 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484799664] [2021-06-05 03:47:36,592 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:36,592 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:36,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:36,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:36,592 INFO L87 Difference]: Start difference. First operand 5161 states and 24479 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:36,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:36,706 INFO L93 Difference]: Finished difference Result 10696 states and 47738 transitions. [2021-06-05 03:47:36,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:36,706 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:36,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:36,732 INFO L225 Difference]: With dead ends: 10696 [2021-06-05 03:47:36,733 INFO L226 Difference]: Without dead ends: 10171 [2021-06-05 03:47:36,733 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 156.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:36,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10171 states. [2021-06-05 03:47:36,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10171 to 5113. [2021-06-05 03:47:36,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5113 states, 5112 states have (on average 4.750978090766823) internal successors, (24287), 5112 states have internal predecessors, (24287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:36,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5113 states to 5113 states and 24287 transitions. [2021-06-05 03:47:36,965 INFO L78 Accepts]: Start accepts. Automaton has 5113 states and 24287 transitions. Word has length 29 [2021-06-05 03:47:36,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:36,965 INFO L482 AbstractCegarLoop]: Abstraction has 5113 states and 24287 transitions. [2021-06-05 03:47:36,965 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:36,965 INFO L276 IsEmpty]: Start isEmpty. Operand 5113 states and 24287 transitions. [2021-06-05 03:47:36,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:36,974 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:36,974 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:36,974 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1038 [2021-06-05 03:47:36,974 INFO L430 AbstractCegarLoop]: === Iteration 1040 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:36,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:36,974 INFO L82 PathProgramCache]: Analyzing trace with hash 34736041, now seen corresponding path program 1035 times [2021-06-05 03:47:36,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:36,974 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275234365] [2021-06-05 03:47:36,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:36,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:37,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:37,099 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:37,099 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275234365] [2021-06-05 03:47:37,099 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275234365] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:37,099 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:37,099 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:37,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412767893] [2021-06-05 03:47:37,099 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:37,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:37,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:37,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:37,099 INFO L87 Difference]: Start difference. First operand 5113 states and 24287 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:37,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:37,214 INFO L93 Difference]: Finished difference Result 10556 states and 47152 transitions. [2021-06-05 03:47:37,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:37,214 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:37,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:37,240 INFO L225 Difference]: With dead ends: 10556 [2021-06-05 03:47:37,240 INFO L226 Difference]: Without dead ends: 10141 [2021-06-05 03:47:37,240 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 149.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:37,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10141 states. [2021-06-05 03:47:37,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10141 to 5145. [2021-06-05 03:47:37,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5145 states, 5144 states have (on average 4.743195956454121) internal successors, (24399), 5144 states have internal predecessors, (24399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:37,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5145 states to 5145 states and 24399 transitions. [2021-06-05 03:47:37,477 INFO L78 Accepts]: Start accepts. Automaton has 5145 states and 24399 transitions. Word has length 29 [2021-06-05 03:47:37,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:37,477 INFO L482 AbstractCegarLoop]: Abstraction has 5145 states and 24399 transitions. [2021-06-05 03:47:37,477 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:37,477 INFO L276 IsEmpty]: Start isEmpty. Operand 5145 states and 24399 transitions. [2021-06-05 03:47:37,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:37,486 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:37,486 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:37,486 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1039 [2021-06-05 03:47:37,486 INFO L430 AbstractCegarLoop]: === Iteration 1041 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:37,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:37,486 INFO L82 PathProgramCache]: Analyzing trace with hash 446144037, now seen corresponding path program 1036 times [2021-06-05 03:47:37,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:37,486 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462623936] [2021-06-05 03:47:37,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:37,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:37,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:37,611 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:37,611 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462623936] [2021-06-05 03:47:37,611 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462623936] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:37,611 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:37,611 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:37,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677926656] [2021-06-05 03:47:37,612 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:37,612 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:37,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:37,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:37,612 INFO L87 Difference]: Start difference. First operand 5145 states and 24399 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:37,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:37,710 INFO L93 Difference]: Finished difference Result 10556 states and 47120 transitions. [2021-06-05 03:47:37,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:37,710 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:37,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:37,736 INFO L225 Difference]: With dead ends: 10556 [2021-06-05 03:47:37,736 INFO L226 Difference]: Without dead ends: 10109 [2021-06-05 03:47:37,736 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 132.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:37,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10109 states. [2021-06-05 03:47:37,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10109 to 5113. [2021-06-05 03:47:37,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5113 states, 5112 states have (on average 4.747848200312989) internal successors, (24271), 5112 states have internal predecessors, (24271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:37,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5113 states to 5113 states and 24271 transitions. [2021-06-05 03:47:37,964 INFO L78 Accepts]: Start accepts. Automaton has 5113 states and 24271 transitions. Word has length 29 [2021-06-05 03:47:37,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:37,964 INFO L482 AbstractCegarLoop]: Abstraction has 5113 states and 24271 transitions. [2021-06-05 03:47:37,964 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:37,964 INFO L276 IsEmpty]: Start isEmpty. Operand 5113 states and 24271 transitions. [2021-06-05 03:47:37,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:37,973 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:37,973 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:37,973 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1040 [2021-06-05 03:47:37,973 INFO L430 AbstractCegarLoop]: === Iteration 1042 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:37,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:37,973 INFO L82 PathProgramCache]: Analyzing trace with hash 581839525, now seen corresponding path program 1037 times [2021-06-05 03:47:37,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:37,973 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922031894] [2021-06-05 03:47:37,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:37,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:38,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:38,105 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:38,105 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922031894] [2021-06-05 03:47:38,105 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922031894] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:38,105 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:38,105 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:38,105 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161494156] [2021-06-05 03:47:38,105 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:38,105 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:38,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:38,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:38,106 INFO L87 Difference]: Start difference. First operand 5113 states and 24271 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:38,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:38,225 INFO L93 Difference]: Finished difference Result 10696 states and 47754 transitions. [2021-06-05 03:47:38,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:38,225 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:38,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:38,251 INFO L225 Difference]: With dead ends: 10696 [2021-06-05 03:47:38,252 INFO L226 Difference]: Without dead ends: 10219 [2021-06-05 03:47:38,252 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 157.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:38,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10219 states. [2021-06-05 03:47:38,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10219 to 5161. [2021-06-05 03:47:38,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.737790697674418) internal successors, (24447), 5160 states have internal predecessors, (24447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:38,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24447 transitions. [2021-06-05 03:47:38,483 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24447 transitions. Word has length 29 [2021-06-05 03:47:38,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:38,483 INFO L482 AbstractCegarLoop]: Abstraction has 5161 states and 24447 transitions. [2021-06-05 03:47:38,483 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:38,483 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24447 transitions. [2021-06-05 03:47:38,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:38,492 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:38,492 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:38,492 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1041 [2021-06-05 03:47:38,492 INFO L430 AbstractCegarLoop]: === Iteration 1043 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:38,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:38,492 INFO L82 PathProgramCache]: Analyzing trace with hash 1662902151, now seen corresponding path program 1038 times [2021-06-05 03:47:38,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:38,492 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298505942] [2021-06-05 03:47:38,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:38,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:38,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:38,625 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:38,625 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298505942] [2021-06-05 03:47:38,625 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298505942] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:38,625 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:38,625 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:38,625 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724971401] [2021-06-05 03:47:38,625 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:38,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:38,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:38,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:38,626 INFO L87 Difference]: Start difference. First operand 5161 states and 24447 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:38,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:38,724 INFO L93 Difference]: Finished difference Result 10634 states and 47437 transitions. [2021-06-05 03:47:38,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:38,725 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:38,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:38,750 INFO L225 Difference]: With dead ends: 10634 [2021-06-05 03:47:38,751 INFO L226 Difference]: Without dead ends: 10155 [2021-06-05 03:47:38,751 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 140.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:38,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10155 states. [2021-06-05 03:47:38,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10155 to 5097. [2021-06-05 03:47:38,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5097 states, 5096 states have (on average 4.751766091051805) internal successors, (24215), 5096 states have internal predecessors, (24215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:38,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5097 states to 5097 states and 24215 transitions. [2021-06-05 03:47:38,976 INFO L78 Accepts]: Start accepts. Automaton has 5097 states and 24215 transitions. Word has length 29 [2021-06-05 03:47:38,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:38,977 INFO L482 AbstractCegarLoop]: Abstraction has 5097 states and 24215 transitions. [2021-06-05 03:47:38,977 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:38,977 INFO L276 IsEmpty]: Start isEmpty. Operand 5097 states and 24215 transitions. [2021-06-05 03:47:38,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:38,986 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:38,986 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:38,986 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1042 [2021-06-05 03:47:38,986 INFO L430 AbstractCegarLoop]: === Iteration 1044 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:38,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:38,986 INFO L82 PathProgramCache]: Analyzing trace with hash 1608271401, now seen corresponding path program 1039 times [2021-06-05 03:47:38,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:38,986 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889459360] [2021-06-05 03:47:38,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:38,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:39,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:39,121 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:39,121 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889459360] [2021-06-05 03:47:39,121 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889459360] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:39,121 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:39,121 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:39,121 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175101957] [2021-06-05 03:47:39,121 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:39,121 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:39,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:39,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:39,121 INFO L87 Difference]: Start difference. First operand 5097 states and 24215 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:39,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:39,238 INFO L93 Difference]: Finished difference Result 10682 states and 47757 transitions. [2021-06-05 03:47:39,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:39,238 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:39,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:39,263 INFO L225 Difference]: With dead ends: 10682 [2021-06-05 03:47:39,264 INFO L226 Difference]: Without dead ends: 10267 [2021-06-05 03:47:39,264 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 160.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:39,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10267 states. [2021-06-05 03:47:39,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10267 to 5169. [2021-06-05 03:47:39,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5169 states, 5168 states have (on average 4.743614551083591) internal successors, (24515), 5168 states have internal predecessors, (24515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:39,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5169 states to 5169 states and 24515 transitions. [2021-06-05 03:47:39,485 INFO L78 Accepts]: Start accepts. Automaton has 5169 states and 24515 transitions. Word has length 29 [2021-06-05 03:47:39,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:39,485 INFO L482 AbstractCegarLoop]: Abstraction has 5169 states and 24515 transitions. [2021-06-05 03:47:39,485 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:39,485 INFO L276 IsEmpty]: Start isEmpty. Operand 5169 states and 24515 transitions. [2021-06-05 03:47:39,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:39,493 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:39,493 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:39,493 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1043 [2021-06-05 03:47:39,493 INFO L430 AbstractCegarLoop]: === Iteration 1045 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:39,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:39,494 INFO L82 PathProgramCache]: Analyzing trace with hash -1970032949, now seen corresponding path program 1040 times [2021-06-05 03:47:39,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:39,494 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656014902] [2021-06-05 03:47:39,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:39,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:39,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:39,626 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:39,626 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656014902] [2021-06-05 03:47:39,626 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656014902] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:39,626 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:39,626 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:39,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210951190] [2021-06-05 03:47:39,626 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:39,626 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:39,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:39,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:39,626 INFO L87 Difference]: Start difference. First operand 5169 states and 24515 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:39,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:39,747 INFO L93 Difference]: Finished difference Result 10744 states and 47978 transitions. [2021-06-05 03:47:39,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:39,747 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:39,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:39,774 INFO L225 Difference]: With dead ends: 10744 [2021-06-05 03:47:39,774 INFO L226 Difference]: Without dead ends: 10219 [2021-06-05 03:47:39,774 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 157.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:39,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10219 states. [2021-06-05 03:47:39,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10219 to 5121. [2021-06-05 03:47:39,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5121 states, 5120 states have (on average 4.7490234375) internal successors, (24315), 5120 states have internal predecessors, (24315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:39,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5121 states to 5121 states and 24315 transitions. [2021-06-05 03:47:39,994 INFO L78 Accepts]: Start accepts. Automaton has 5121 states and 24315 transitions. Word has length 29 [2021-06-05 03:47:39,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:39,994 INFO L482 AbstractCegarLoop]: Abstraction has 5121 states and 24315 transitions. [2021-06-05 03:47:39,994 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:39,994 INFO L276 IsEmpty]: Start isEmpty. Operand 5121 states and 24315 transitions. [2021-06-05 03:47:40,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:40,003 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:40,003 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:40,003 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1044 [2021-06-05 03:47:40,003 INFO L430 AbstractCegarLoop]: === Iteration 1046 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:40,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:40,003 INFO L82 PathProgramCache]: Analyzing trace with hash 1295224361, now seen corresponding path program 1041 times [2021-06-05 03:47:40,003 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:40,003 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480583793] [2021-06-05 03:47:40,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:40,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:40,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:40,126 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:40,126 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480583793] [2021-06-05 03:47:40,126 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480583793] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:40,126 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:40,126 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:40,126 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452738605] [2021-06-05 03:47:40,126 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:40,127 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:40,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:40,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:40,127 INFO L87 Difference]: Start difference. First operand 5121 states and 24315 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:40,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:40,242 INFO L93 Difference]: Finished difference Result 10572 states and 47288 transitions. [2021-06-05 03:47:40,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:40,242 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:40,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:40,267 INFO L225 Difference]: With dead ends: 10572 [2021-06-05 03:47:40,267 INFO L226 Difference]: Without dead ends: 10157 [2021-06-05 03:47:40,267 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 147.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:40,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10157 states. [2021-06-05 03:47:40,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10157 to 5169. [2021-06-05 03:47:40,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5169 states, 5168 states have (on average 4.738970588235294) internal successors, (24491), 5168 states have internal predecessors, (24491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:40,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5169 states to 5169 states and 24491 transitions. [2021-06-05 03:47:40,486 INFO L78 Accepts]: Start accepts. Automaton has 5169 states and 24491 transitions. Word has length 29 [2021-06-05 03:47:40,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:40,486 INFO L482 AbstractCegarLoop]: Abstraction has 5169 states and 24491 transitions. [2021-06-05 03:47:40,486 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:40,486 INFO L276 IsEmpty]: Start isEmpty. Operand 5169 states and 24491 transitions. [2021-06-05 03:47:40,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:40,494 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:40,494 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:40,495 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1045 [2021-06-05 03:47:40,495 INFO L430 AbstractCegarLoop]: === Iteration 1047 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:40,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:40,495 INFO L82 PathProgramCache]: Analyzing trace with hash -1445119511, now seen corresponding path program 1042 times [2021-06-05 03:47:40,495 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:40,495 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374542424] [2021-06-05 03:47:40,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:40,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:40,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:40,617 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:40,617 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374542424] [2021-06-05 03:47:40,617 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374542424] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:40,617 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:40,617 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:40,617 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096957957] [2021-06-05 03:47:40,617 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:40,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:40,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:40,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:40,618 INFO L87 Difference]: Start difference. First operand 5169 states and 24491 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:40,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:40,729 INFO L93 Difference]: Finished difference Result 10300 states and 46279 transitions. [2021-06-05 03:47:40,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:40,730 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:40,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:40,802 INFO L225 Difference]: With dead ends: 10300 [2021-06-05 03:47:40,803 INFO L226 Difference]: Without dead ends: 9789 [2021-06-05 03:47:40,803 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 147.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:40,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9789 states. [2021-06-05 03:47:40,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9789 to 5121. [2021-06-05 03:47:40,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5121 states, 5120 states have (on average 4.7443359375) internal successors, (24291), 5120 states have internal predecessors, (24291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:41,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5121 states to 5121 states and 24291 transitions. [2021-06-05 03:47:41,005 INFO L78 Accepts]: Start accepts. Automaton has 5121 states and 24291 transitions. Word has length 29 [2021-06-05 03:47:41,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:41,005 INFO L482 AbstractCegarLoop]: Abstraction has 5121 states and 24291 transitions. [2021-06-05 03:47:41,005 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:41,005 INFO L276 IsEmpty]: Start isEmpty. Operand 5121 states and 24291 transitions. [2021-06-05 03:47:41,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:41,014 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:41,014 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:41,014 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1046 [2021-06-05 03:47:41,014 INFO L430 AbstractCegarLoop]: === Iteration 1048 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:41,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:41,014 INFO L82 PathProgramCache]: Analyzing trace with hash 1679376907, now seen corresponding path program 1043 times [2021-06-05 03:47:41,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:41,014 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728088789] [2021-06-05 03:47:41,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:41,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:41,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:41,146 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:41,146 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728088789] [2021-06-05 03:47:41,146 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728088789] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:41,146 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:41,146 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:41,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404492374] [2021-06-05 03:47:41,146 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:41,146 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:41,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:41,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:41,146 INFO L87 Difference]: Start difference. First operand 5121 states and 24291 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:41,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:41,252 INFO L93 Difference]: Finished difference Result 10658 states and 47657 transitions. [2021-06-05 03:47:41,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:41,253 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:41,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:41,277 INFO L225 Difference]: With dead ends: 10658 [2021-06-05 03:47:41,278 INFO L226 Difference]: Without dead ends: 10181 [2021-06-05 03:47:41,278 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 156.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:41,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10181 states. [2021-06-05 03:47:41,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10181 to 5193. [2021-06-05 03:47:41,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5193 states, 5192 states have (on average 4.731702619414484) internal successors, (24567), 5192 states have internal predecessors, (24567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:41,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5193 states to 5193 states and 24567 transitions. [2021-06-05 03:47:41,499 INFO L78 Accepts]: Start accepts. Automaton has 5193 states and 24567 transitions. Word has length 29 [2021-06-05 03:47:41,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:41,499 INFO L482 AbstractCegarLoop]: Abstraction has 5193 states and 24567 transitions. [2021-06-05 03:47:41,499 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:41,499 INFO L276 IsEmpty]: Start isEmpty. Operand 5193 states and 24567 transitions. [2021-06-05 03:47:41,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:41,507 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:41,507 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:41,508 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1047 [2021-06-05 03:47:41,508 INFO L430 AbstractCegarLoop]: === Iteration 1049 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:41,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:41,508 INFO L82 PathProgramCache]: Analyzing trace with hash 1589617257, now seen corresponding path program 1044 times [2021-06-05 03:47:41,508 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:41,508 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962298338] [2021-06-05 03:47:41,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:41,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:41,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:41,639 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:41,640 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962298338] [2021-06-05 03:47:41,640 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962298338] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:41,640 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:41,640 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:41,640 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821135547] [2021-06-05 03:47:41,640 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:41,640 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:41,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:41,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:41,640 INFO L87 Difference]: Start difference. First operand 5193 states and 24567 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:41,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:41,747 INFO L93 Difference]: Finished difference Result 10324 states and 46355 transitions. [2021-06-05 03:47:41,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:41,747 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:41,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:41,771 INFO L225 Difference]: With dead ends: 10324 [2021-06-05 03:47:41,772 INFO L226 Difference]: Without dead ends: 9765 [2021-06-05 03:47:41,772 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 155.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:41,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9765 states. [2021-06-05 03:47:41,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9765 to 5097. [2021-06-05 03:47:41,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5097 states, 5096 states have (on average 4.750196232339089) internal successors, (24207), 5096 states have internal predecessors, (24207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:41,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5097 states to 5097 states and 24207 transitions. [2021-06-05 03:47:41,990 INFO L78 Accepts]: Start accepts. Automaton has 5097 states and 24207 transitions. Word has length 29 [2021-06-05 03:47:41,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:41,990 INFO L482 AbstractCegarLoop]: Abstraction has 5097 states and 24207 transitions. [2021-06-05 03:47:41,990 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:41,990 INFO L276 IsEmpty]: Start isEmpty. Operand 5097 states and 24207 transitions. [2021-06-05 03:47:41,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:41,999 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:41,999 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:41,999 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1048 [2021-06-05 03:47:41,999 INFO L430 AbstractCegarLoop]: === Iteration 1050 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:41,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:41,999 INFO L82 PathProgramCache]: Analyzing trace with hash 818885131, now seen corresponding path program 1045 times [2021-06-05 03:47:41,999 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:41,999 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328936849] [2021-06-05 03:47:41,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:42,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:42,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:42,113 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:42,113 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328936849] [2021-06-05 03:47:42,113 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328936849] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:42,113 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:42,113 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:42,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807664934] [2021-06-05 03:47:42,113 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:42,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:42,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:42,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:42,114 INFO L87 Difference]: Start difference. First operand 5097 states and 24207 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:42,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:42,222 INFO L93 Difference]: Finished difference Result 10510 states and 46963 transitions. [2021-06-05 03:47:42,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:42,223 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:42,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:42,247 INFO L225 Difference]: With dead ends: 10510 [2021-06-05 03:47:42,248 INFO L226 Difference]: Without dead ends: 10095 [2021-06-05 03:47:42,248 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 137.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:42,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10095 states. [2021-06-05 03:47:42,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10095 to 5145. [2021-06-05 03:47:42,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5145 states, 5144 states have (on average 4.743195956454121) internal successors, (24399), 5144 states have internal predecessors, (24399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:42,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5145 states to 5145 states and 24399 transitions. [2021-06-05 03:47:42,470 INFO L78 Accepts]: Start accepts. Automaton has 5145 states and 24399 transitions. Word has length 29 [2021-06-05 03:47:42,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:42,470 INFO L482 AbstractCegarLoop]: Abstraction has 5145 states and 24399 transitions. [2021-06-05 03:47:42,470 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:42,470 INFO L276 IsEmpty]: Start isEmpty. Operand 5145 states and 24399 transitions. [2021-06-05 03:47:42,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:42,478 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:42,478 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:42,479 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1049 [2021-06-05 03:47:42,479 INFO L430 AbstractCegarLoop]: === Iteration 1051 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:42,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:42,479 INFO L82 PathProgramCache]: Analyzing trace with hash 1230293127, now seen corresponding path program 1046 times [2021-06-05 03:47:42,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:42,479 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204570104] [2021-06-05 03:47:42,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:42,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:42,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:42,595 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:42,595 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204570104] [2021-06-05 03:47:42,595 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204570104] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:42,595 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:42,595 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:42,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448625166] [2021-06-05 03:47:42,595 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:42,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:42,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:42,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:42,596 INFO L87 Difference]: Start difference. First operand 5145 states and 24399 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:42,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:42,697 INFO L93 Difference]: Finished difference Result 10510 states and 46931 transitions. [2021-06-05 03:47:42,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:42,697 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:42,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:42,722 INFO L225 Difference]: With dead ends: 10510 [2021-06-05 03:47:42,723 INFO L226 Difference]: Without dead ends: 10063 [2021-06-05 03:47:42,723 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 123.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:42,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10063 states. [2021-06-05 03:47:42,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10063 to 5113. [2021-06-05 03:47:42,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5113 states, 5112 states have (on average 4.747848200312989) internal successors, (24271), 5112 states have internal predecessors, (24271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:42,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5113 states to 5113 states and 24271 transitions. [2021-06-05 03:47:42,941 INFO L78 Accepts]: Start accepts. Automaton has 5113 states and 24271 transitions. Word has length 29 [2021-06-05 03:47:42,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:42,941 INFO L482 AbstractCegarLoop]: Abstraction has 5113 states and 24271 transitions. [2021-06-05 03:47:42,941 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:42,941 INFO L276 IsEmpty]: Start isEmpty. Operand 5113 states and 24271 transitions. [2021-06-05 03:47:42,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:42,949 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:42,950 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:42,950 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1050 [2021-06-05 03:47:42,950 INFO L430 AbstractCegarLoop]: === Iteration 1052 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:42,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:42,950 INFO L82 PathProgramCache]: Analyzing trace with hash -1224078615, now seen corresponding path program 1047 times [2021-06-05 03:47:42,950 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:42,950 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675483893] [2021-06-05 03:47:42,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:42,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:43,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:43,073 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:43,073 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675483893] [2021-06-05 03:47:43,073 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675483893] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:43,073 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:43,073 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:43,073 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655056011] [2021-06-05 03:47:43,073 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:43,073 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:43,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:43,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:43,074 INFO L87 Difference]: Start difference. First operand 5113 states and 24271 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:43,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:43,199 INFO L93 Difference]: Finished difference Result 10478 states and 46851 transitions. [2021-06-05 03:47:43,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:43,199 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:43,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:43,225 INFO L225 Difference]: With dead ends: 10478 [2021-06-05 03:47:43,225 INFO L226 Difference]: Without dead ends: 10063 [2021-06-05 03:47:43,225 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 143.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:43,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10063 states. [2021-06-05 03:47:43,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10063 to 5161. [2021-06-05 03:47:43,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.737790697674418) internal successors, (24447), 5160 states have internal predecessors, (24447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:43,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24447 transitions. [2021-06-05 03:47:43,451 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24447 transitions. Word has length 29 [2021-06-05 03:47:43,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:43,452 INFO L482 AbstractCegarLoop]: Abstraction has 5161 states and 24447 transitions. [2021-06-05 03:47:43,452 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:43,452 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24447 transitions. [2021-06-05 03:47:43,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:43,460 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:43,460 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:43,460 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1051 [2021-06-05 03:47:43,461 INFO L430 AbstractCegarLoop]: === Iteration 1053 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:43,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:43,461 INFO L82 PathProgramCache]: Analyzing trace with hash 264482251, now seen corresponding path program 1048 times [2021-06-05 03:47:43,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:43,461 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983351548] [2021-06-05 03:47:43,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:43,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:43,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:43,576 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:43,576 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983351548] [2021-06-05 03:47:43,576 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983351548] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:43,576 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:43,576 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:43,576 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575570262] [2021-06-05 03:47:43,576 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:43,576 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:43,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:43,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:43,576 INFO L87 Difference]: Start difference. First operand 5161 states and 24447 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:43,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:43,694 INFO L93 Difference]: Finished difference Result 10206 states and 45842 transitions. [2021-06-05 03:47:43,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:43,695 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:43,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:43,720 INFO L225 Difference]: With dead ends: 10206 [2021-06-05 03:47:43,720 INFO L226 Difference]: Without dead ends: 9695 [2021-06-05 03:47:43,720 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 138.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:43,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9695 states. [2021-06-05 03:47:43,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9695 to 5113. [2021-06-05 03:47:43,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5113 states, 5112 states have (on average 4.744718309859155) internal successors, (24255), 5112 states have internal predecessors, (24255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:43,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5113 states to 5113 states and 24255 transitions. [2021-06-05 03:47:43,944 INFO L78 Accepts]: Start accepts. Automaton has 5113 states and 24255 transitions. Word has length 29 [2021-06-05 03:47:43,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:43,944 INFO L482 AbstractCegarLoop]: Abstraction has 5113 states and 24255 transitions. [2021-06-05 03:47:43,944 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:43,944 INFO L276 IsEmpty]: Start isEmpty. Operand 5113 states and 24255 transitions. [2021-06-05 03:47:43,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:43,952 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:43,952 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:43,953 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1052 [2021-06-05 03:47:43,953 INFO L430 AbstractCegarLoop]: === Iteration 1054 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:43,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:43,953 INFO L82 PathProgramCache]: Analyzing trace with hash -588006747, now seen corresponding path program 1049 times [2021-06-05 03:47:43,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:43,953 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088236809] [2021-06-05 03:47:43,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:43,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:44,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:44,068 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:44,068 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088236809] [2021-06-05 03:47:44,068 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088236809] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:44,068 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:44,068 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:44,068 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921934149] [2021-06-05 03:47:44,068 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:44,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:44,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:44,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:44,069 INFO L87 Difference]: Start difference. First operand 5113 states and 24255 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:44,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:44,167 INFO L93 Difference]: Finished difference Result 10478 states and 46835 transitions. [2021-06-05 03:47:44,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:44,168 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:44,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:44,193 INFO L225 Difference]: With dead ends: 10478 [2021-06-05 03:47:44,193 INFO L226 Difference]: Without dead ends: 10063 [2021-06-05 03:47:44,193 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 122.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:44,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10063 states. [2021-06-05 03:47:44,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10063 to 5161. [2021-06-05 03:47:44,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.73468992248062) internal successors, (24431), 5160 states have internal predecessors, (24431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:44,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24431 transitions. [2021-06-05 03:47:44,416 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24431 transitions. Word has length 29 [2021-06-05 03:47:44,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:44,416 INFO L482 AbstractCegarLoop]: Abstraction has 5161 states and 24431 transitions. [2021-06-05 03:47:44,416 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:44,416 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24431 transitions. [2021-06-05 03:47:44,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:44,425 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:44,425 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:44,425 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1053 [2021-06-05 03:47:44,425 INFO L430 AbstractCegarLoop]: === Iteration 1055 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:44,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:44,425 INFO L82 PathProgramCache]: Analyzing trace with hash -2082685305, now seen corresponding path program 1050 times [2021-06-05 03:47:44,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:44,426 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753778237] [2021-06-05 03:47:44,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:44,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:44,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:44,540 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:44,540 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753778237] [2021-06-05 03:47:44,540 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753778237] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:44,540 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:44,540 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:44,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025435749] [2021-06-05 03:47:44,540 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:44,540 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:44,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:44,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:44,541 INFO L87 Difference]: Start difference. First operand 5161 states and 24431 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:44,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:44,664 INFO L93 Difference]: Finished difference Result 10206 states and 45826 transitions. [2021-06-05 03:47:44,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:44,664 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:44,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:44,689 INFO L225 Difference]: With dead ends: 10206 [2021-06-05 03:47:44,689 INFO L226 Difference]: Without dead ends: 9679 [2021-06-05 03:47:44,689 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 138.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:44,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9679 states. [2021-06-05 03:47:44,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9679 to 5097. [2021-06-05 03:47:44,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5097 states, 5096 states have (on average 4.748626373626373) internal successors, (24199), 5096 states have internal predecessors, (24199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:44,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5097 states to 5097 states and 24199 transitions. [2021-06-05 03:47:44,911 INFO L78 Accepts]: Start accepts. Automaton has 5097 states and 24199 transitions. Word has length 29 [2021-06-05 03:47:44,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:44,911 INFO L482 AbstractCegarLoop]: Abstraction has 5097 states and 24199 transitions. [2021-06-05 03:47:44,911 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:44,911 INFO L276 IsEmpty]: Start isEmpty. Operand 5097 states and 24199 transitions. [2021-06-05 03:47:44,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:44,920 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:44,920 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:44,920 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1054 [2021-06-05 03:47:44,920 INFO L430 AbstractCegarLoop]: === Iteration 1056 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:44,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:44,920 INFO L82 PathProgramCache]: Analyzing trace with hash -1099897051, now seen corresponding path program 1051 times [2021-06-05 03:47:44,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:44,920 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033692079] [2021-06-05 03:47:44,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:44,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:45,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:45,052 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:45,052 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033692079] [2021-06-05 03:47:45,052 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033692079] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:45,052 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:45,052 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:45,052 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672562236] [2021-06-05 03:47:45,052 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:45,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:45,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:45,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:45,053 INFO L87 Difference]: Start difference. First operand 5097 states and 24199 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:45,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:45,180 INFO L93 Difference]: Finished difference Result 10744 states and 48010 transitions. [2021-06-05 03:47:45,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:45,180 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:45,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:45,205 INFO L225 Difference]: With dead ends: 10744 [2021-06-05 03:47:45,206 INFO L226 Difference]: Without dead ends: 10267 [2021-06-05 03:47:45,206 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 156.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:45,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10267 states. [2021-06-05 03:47:45,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10267 to 5169. [2021-06-05 03:47:45,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5169 states, 5168 states have (on average 4.740518575851393) internal successors, (24499), 5168 states have internal predecessors, (24499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:45,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5169 states to 5169 states and 24499 transitions. [2021-06-05 03:47:45,433 INFO L78 Accepts]: Start accepts. Automaton has 5169 states and 24499 transitions. Word has length 29 [2021-06-05 03:47:45,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:45,433 INFO L482 AbstractCegarLoop]: Abstraction has 5169 states and 24499 transitions. [2021-06-05 03:47:45,433 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:45,433 INFO L276 IsEmpty]: Start isEmpty. Operand 5169 states and 24499 transitions. [2021-06-05 03:47:45,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:45,442 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:45,442 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:45,442 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1055 [2021-06-05 03:47:45,442 INFO L430 AbstractCegarLoop]: === Iteration 1057 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:45,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:45,442 INFO L82 PathProgramCache]: Analyzing trace with hash -18834425, now seen corresponding path program 1052 times [2021-06-05 03:47:45,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:45,442 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069183172] [2021-06-05 03:47:45,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:45,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:45,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:45,574 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:45,574 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069183172] [2021-06-05 03:47:45,574 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069183172] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:45,574 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:45,574 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:45,575 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455352743] [2021-06-05 03:47:45,575 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:45,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:45,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:45,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:45,575 INFO L87 Difference]: Start difference. First operand 5169 states and 24499 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:45,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:45,686 INFO L93 Difference]: Finished difference Result 10682 states and 47693 transitions. [2021-06-05 03:47:45,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:45,686 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:45,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:45,713 INFO L225 Difference]: With dead ends: 10682 [2021-06-05 03:47:45,713 INFO L226 Difference]: Without dead ends: 10219 [2021-06-05 03:47:45,713 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 139.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:45,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10219 states. [2021-06-05 03:47:45,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10219 to 5121. [2021-06-05 03:47:45,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5121 states, 5120 states have (on average 4.7458984375) internal successors, (24299), 5120 states have internal predecessors, (24299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:45,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5121 states to 5121 states and 24299 transitions. [2021-06-05 03:47:45,938 INFO L78 Accepts]: Start accepts. Automaton has 5121 states and 24299 transitions. Word has length 29 [2021-06-05 03:47:45,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:45,938 INFO L482 AbstractCegarLoop]: Abstraction has 5121 states and 24299 transitions. [2021-06-05 03:47:45,938 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:45,939 INFO L276 IsEmpty]: Start isEmpty. Operand 5121 states and 24299 transitions. [2021-06-05 03:47:45,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:45,947 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:45,947 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:45,947 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1056 [2021-06-05 03:47:45,947 INFO L430 AbstractCegarLoop]: === Iteration 1058 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:45,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:45,947 INFO L82 PathProgramCache]: Analyzing trace with hash 1328052871, now seen corresponding path program 1053 times [2021-06-05 03:47:45,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:45,948 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863121811] [2021-06-05 03:47:45,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:45,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:46,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:46,083 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:46,083 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863121811] [2021-06-05 03:47:46,083 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863121811] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:46,083 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:46,083 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:46,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546511414] [2021-06-05 03:47:46,084 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:46,084 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:46,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:46,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:46,084 INFO L87 Difference]: Start difference. First operand 5121 states and 24299 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:46,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:46,199 INFO L93 Difference]: Finished difference Result 10658 states and 47665 transitions. [2021-06-05 03:47:46,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:46,199 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:46,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:46,225 INFO L225 Difference]: With dead ends: 10658 [2021-06-05 03:47:46,225 INFO L226 Difference]: Without dead ends: 10181 [2021-06-05 03:47:46,225 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 160.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:46,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10181 states. [2021-06-05 03:47:46,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10181 to 5193. [2021-06-05 03:47:46,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5193 states, 5192 states have (on average 4.733243451463791) internal successors, (24575), 5192 states have internal predecessors, (24575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:46,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5193 states to 5193 states and 24575 transitions. [2021-06-05 03:47:46,452 INFO L78 Accepts]: Start accepts. Automaton has 5193 states and 24575 transitions. Word has length 29 [2021-06-05 03:47:46,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:46,452 INFO L482 AbstractCegarLoop]: Abstraction has 5193 states and 24575 transitions. [2021-06-05 03:47:46,452 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:46,452 INFO L276 IsEmpty]: Start isEmpty. Operand 5193 states and 24575 transitions. [2021-06-05 03:47:46,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:46,461 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:46,461 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:46,461 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1057 [2021-06-05 03:47:46,461 INFO L430 AbstractCegarLoop]: === Iteration 1059 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:46,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:46,461 INFO L82 PathProgramCache]: Analyzing trace with hash -1179532665, now seen corresponding path program 1054 times [2021-06-05 03:47:46,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:46,461 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065157775] [2021-06-05 03:47:46,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:46,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:46,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:46,596 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:46,596 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065157775] [2021-06-05 03:47:46,596 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065157775] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:46,596 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:46,596 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:46,596 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442798859] [2021-06-05 03:47:46,596 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:46,596 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:46,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:46,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:46,596 INFO L87 Difference]: Start difference. First operand 5193 states and 24575 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:46,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:46,712 INFO L93 Difference]: Finished difference Result 10324 states and 46363 transitions. [2021-06-05 03:47:46,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:46,712 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:46,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:46,737 INFO L225 Difference]: With dead ends: 10324 [2021-06-05 03:47:46,737 INFO L226 Difference]: Without dead ends: 9789 [2021-06-05 03:47:46,737 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 158.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:46,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9789 states. [2021-06-05 03:47:46,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9789 to 5121. [2021-06-05 03:47:46,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5121 states, 5120 states have (on average 4.7412109375) internal successors, (24275), 5120 states have internal predecessors, (24275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:46,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5121 states to 5121 states and 24275 transitions. [2021-06-05 03:47:46,961 INFO L78 Accepts]: Start accepts. Automaton has 5121 states and 24275 transitions. Word has length 29 [2021-06-05 03:47:46,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:46,961 INFO L482 AbstractCegarLoop]: Abstraction has 5121 states and 24275 transitions. [2021-06-05 03:47:46,961 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:46,961 INFO L276 IsEmpty]: Start isEmpty. Operand 5121 states and 24275 transitions. [2021-06-05 03:47:46,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:46,970 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:46,970 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:46,970 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1058 [2021-06-05 03:47:46,970 INFO L430 AbstractCegarLoop]: === Iteration 1060 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:46,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:46,970 INFO L82 PathProgramCache]: Analyzing trace with hash 1716057833, now seen corresponding path program 1055 times [2021-06-05 03:47:46,970 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:46,970 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605255536] [2021-06-05 03:47:46,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:46,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:47,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:47,095 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:47,095 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605255536] [2021-06-05 03:47:47,095 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605255536] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:47,095 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:47,095 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:47,095 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876418664] [2021-06-05 03:47:47,095 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:47,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:47,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:47,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:47,095 INFO L87 Difference]: Start difference. First operand 5121 states and 24275 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:47,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:47,196 INFO L93 Difference]: Finished difference Result 10572 states and 47248 transitions. [2021-06-05 03:47:47,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:47,197 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:47,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:47,223 INFO L225 Difference]: With dead ends: 10572 [2021-06-05 03:47:47,223 INFO L226 Difference]: Without dead ends: 10157 [2021-06-05 03:47:47,223 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 132.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:47,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10157 states. [2021-06-05 03:47:47,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10157 to 5169. [2021-06-05 03:47:47,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5169 states, 5168 states have (on average 4.7312306501547985) internal successors, (24451), 5168 states have internal predecessors, (24451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:47,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5169 states to 5169 states and 24451 transitions. [2021-06-05 03:47:47,450 INFO L78 Accepts]: Start accepts. Automaton has 5169 states and 24451 transitions. Word has length 29 [2021-06-05 03:47:47,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:47,450 INFO L482 AbstractCegarLoop]: Abstraction has 5169 states and 24451 transitions. [2021-06-05 03:47:47,450 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:47,450 INFO L276 IsEmpty]: Start isEmpty. Operand 5169 states and 24451 transitions. [2021-06-05 03:47:47,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:47,459 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:47,459 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:47,459 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1059 [2021-06-05 03:47:47,459 INFO L430 AbstractCegarLoop]: === Iteration 1061 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:47,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:47,459 INFO L82 PathProgramCache]: Analyzing trace with hash -1669304505, now seen corresponding path program 1056 times [2021-06-05 03:47:47,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:47,459 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061388843] [2021-06-05 03:47:47,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:47,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:47,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:47,583 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:47,583 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061388843] [2021-06-05 03:47:47,583 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061388843] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:47,583 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:47,583 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:47,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955233920] [2021-06-05 03:47:47,583 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:47,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:47,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:47,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:47,584 INFO L87 Difference]: Start difference. First operand 5169 states and 24451 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:47,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:47,693 INFO L93 Difference]: Finished difference Result 10300 states and 46239 transitions. [2021-06-05 03:47:47,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:47,693 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:47,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:47,718 INFO L225 Difference]: With dead ends: 10300 [2021-06-05 03:47:47,719 INFO L226 Difference]: Without dead ends: 9757 [2021-06-05 03:47:47,719 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 147.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:47,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9757 states. [2021-06-05 03:47:47,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9757 to 5089. [2021-06-05 03:47:47,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5089 states, 5088 states have (on average 4.751375786163522) internal successors, (24175), 5088 states have internal predecessors, (24175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:47,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5089 states to 5089 states and 24175 transitions. [2021-06-05 03:47:47,943 INFO L78 Accepts]: Start accepts. Automaton has 5089 states and 24175 transitions. Word has length 29 [2021-06-05 03:47:47,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:47,943 INFO L482 AbstractCegarLoop]: Abstraction has 5089 states and 24175 transitions. [2021-06-05 03:47:47,943 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:47,943 INFO L276 IsEmpty]: Start isEmpty. Operand 5089 states and 24175 transitions. [2021-06-05 03:47:47,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:47,952 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:47,952 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:47,952 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1060 [2021-06-05 03:47:47,952 INFO L430 AbstractCegarLoop]: === Iteration 1062 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:47,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:47,952 INFO L82 PathProgramCache]: Analyzing trace with hash 438318083, now seen corresponding path program 1057 times [2021-06-05 03:47:47,952 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:47,952 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830348390] [2021-06-05 03:47:47,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:47,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:48,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:48,076 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:48,076 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830348390] [2021-06-05 03:47:48,076 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830348390] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:48,076 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:48,076 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:48,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028550437] [2021-06-05 03:47:48,076 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:48,076 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:48,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:48,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:48,076 INFO L87 Difference]: Start difference. First operand 5089 states and 24175 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:48,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:48,178 INFO L93 Difference]: Finished difference Result 11707 states and 52183 transitions. [2021-06-05 03:47:48,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:48,178 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:48,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:48,206 INFO L225 Difference]: With dead ends: 11707 [2021-06-05 03:47:48,206 INFO L226 Difference]: Without dead ends: 11165 [2021-06-05 03:47:48,206 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 131.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:48,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11165 states. [2021-06-05 03:47:48,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11165 to 5316. [2021-06-05 03:47:48,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5316 states, 5315 states have (on average 4.724365004703669) internal successors, (25110), 5315 states have internal predecessors, (25110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:48,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5316 states to 5316 states and 25110 transitions. [2021-06-05 03:47:48,445 INFO L78 Accepts]: Start accepts. Automaton has 5316 states and 25110 transitions. Word has length 29 [2021-06-05 03:47:48,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:48,445 INFO L482 AbstractCegarLoop]: Abstraction has 5316 states and 25110 transitions. [2021-06-05 03:47:48,445 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:48,445 INFO L276 IsEmpty]: Start isEmpty. Operand 5316 states and 25110 transitions. [2021-06-05 03:47:48,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:48,455 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:48,455 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:48,455 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1061 [2021-06-05 03:47:48,455 INFO L430 AbstractCegarLoop]: === Iteration 1063 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:48,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:48,455 INFO L82 PathProgramCache]: Analyzing trace with hash 1519380709, now seen corresponding path program 1058 times [2021-06-05 03:47:48,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:48,455 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539857876] [2021-06-05 03:47:48,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:48,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:48,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:48,579 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:48,579 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539857876] [2021-06-05 03:47:48,579 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539857876] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:48,579 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:48,579 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:48,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690273975] [2021-06-05 03:47:48,579 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:48,579 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:48,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:48,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:48,579 INFO L87 Difference]: Start difference. First operand 5316 states and 25110 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:48,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:48,706 INFO L93 Difference]: Finished difference Result 11642 states and 51814 transitions. [2021-06-05 03:47:48,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:48,707 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:48,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:48,734 INFO L225 Difference]: With dead ends: 11642 [2021-06-05 03:47:48,735 INFO L226 Difference]: Without dead ends: 11022 [2021-06-05 03:47:48,735 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 148.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:48,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11022 states. [2021-06-05 03:47:48,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11022 to 5173. [2021-06-05 03:47:48,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5173 states, 5172 states have (on average 4.743812838360403) internal successors, (24535), 5172 states have internal predecessors, (24535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:48,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5173 states to 5173 states and 24535 transitions. [2021-06-05 03:47:48,965 INFO L78 Accepts]: Start accepts. Automaton has 5173 states and 24535 transitions. Word has length 29 [2021-06-05 03:47:48,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:48,965 INFO L482 AbstractCegarLoop]: Abstraction has 5173 states and 24535 transitions. [2021-06-05 03:47:48,965 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:48,966 INFO L276 IsEmpty]: Start isEmpty. Operand 5173 states and 24535 transitions. [2021-06-05 03:47:48,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:48,974 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:48,974 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:48,974 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1062 [2021-06-05 03:47:48,974 INFO L430 AbstractCegarLoop]: === Iteration 1064 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:48,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:48,975 INFO L82 PathProgramCache]: Analyzing trace with hash -42583963, now seen corresponding path program 1059 times [2021-06-05 03:47:48,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:48,975 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919408772] [2021-06-05 03:47:48,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:48,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:49,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:49,105 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:49,105 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919408772] [2021-06-05 03:47:49,105 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919408772] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:49,105 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:49,105 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:49,105 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308783418] [2021-06-05 03:47:49,105 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:49,105 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:49,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:49,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:49,105 INFO L87 Difference]: Start difference. First operand 5173 states and 24535 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:49,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:49,206 INFO L93 Difference]: Finished difference Result 11582 states and 51596 transitions. [2021-06-05 03:47:49,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:49,207 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:49,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:49,234 INFO L225 Difference]: With dead ends: 11582 [2021-06-05 03:47:49,234 INFO L226 Difference]: Without dead ends: 11040 [2021-06-05 03:47:49,234 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 137.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:49,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11040 states. [2021-06-05 03:47:49,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11040 to 5253. [2021-06-05 03:47:49,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5253 states, 5252 states have (on average 4.726389946686976) internal successors, (24823), 5252 states have internal predecessors, (24823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:49,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5253 states to 5253 states and 24823 transitions. [2021-06-05 03:47:49,463 INFO L78 Accepts]: Start accepts. Automaton has 5253 states and 24823 transitions. Word has length 29 [2021-06-05 03:47:49,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:49,463 INFO L482 AbstractCegarLoop]: Abstraction has 5253 states and 24823 transitions. [2021-06-05 03:47:49,463 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:49,463 INFO L276 IsEmpty]: Start isEmpty. Operand 5253 states and 24823 transitions. [2021-06-05 03:47:49,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:49,471 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:49,471 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:49,471 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1063 [2021-06-05 03:47:49,472 INFO L430 AbstractCegarLoop]: === Iteration 1065 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:49,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:49,472 INFO L82 PathProgramCache]: Analyzing trace with hash -1730830235, now seen corresponding path program 1060 times [2021-06-05 03:47:49,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:49,472 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076072666] [2021-06-05 03:47:49,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:49,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:49,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:49,603 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:49,603 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076072666] [2021-06-05 03:47:49,603 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076072666] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:49,603 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:49,603 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:49,603 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244935340] [2021-06-05 03:47:49,603 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:49,603 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:49,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:49,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:49,604 INFO L87 Difference]: Start difference. First operand 5253 states and 24823 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:49,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:49,702 INFO L93 Difference]: Finished difference Result 11455 states and 50989 transitions. [2021-06-05 03:47:49,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:49,703 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:49,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:49,729 INFO L225 Difference]: With dead ends: 11455 [2021-06-05 03:47:49,729 INFO L226 Difference]: Without dead ends: 10960 [2021-06-05 03:47:49,729 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 138.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:49,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10960 states. [2021-06-05 03:47:49,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10960 to 5173. [2021-06-05 03:47:49,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5173 states, 5172 states have (on average 4.736078886310905) internal successors, (24495), 5172 states have internal predecessors, (24495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:49,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5173 states to 5173 states and 24495 transitions. [2021-06-05 03:47:49,958 INFO L78 Accepts]: Start accepts. Automaton has 5173 states and 24495 transitions. Word has length 29 [2021-06-05 03:47:49,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:49,958 INFO L482 AbstractCegarLoop]: Abstraction has 5173 states and 24495 transitions. [2021-06-05 03:47:49,958 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:49,958 INFO L276 IsEmpty]: Start isEmpty. Operand 5173 states and 24495 transitions. [2021-06-05 03:47:49,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:49,967 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:49,967 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:49,967 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1064 [2021-06-05 03:47:49,967 INFO L430 AbstractCegarLoop]: === Iteration 1066 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:49,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:49,967 INFO L82 PathProgramCache]: Analyzing trace with hash 345420999, now seen corresponding path program 1061 times [2021-06-05 03:47:49,967 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:49,967 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071655484] [2021-06-05 03:47:49,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:49,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:50,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:50,099 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:50,099 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071655484] [2021-06-05 03:47:50,099 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071655484] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:50,099 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:50,100 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:50,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913756473] [2021-06-05 03:47:50,100 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:50,100 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:50,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:50,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:50,100 INFO L87 Difference]: Start difference. First operand 5173 states and 24495 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:50,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:50,254 INFO L93 Difference]: Finished difference Result 11420 states and 50896 transitions. [2021-06-05 03:47:50,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:50,254 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:50,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:50,284 INFO L225 Difference]: With dead ends: 11420 [2021-06-05 03:47:50,285 INFO L226 Difference]: Without dead ends: 10943 [2021-06-05 03:47:50,285 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 157.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:50,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10943 states. [2021-06-05 03:47:50,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10943 to 5221. [2021-06-05 03:47:50,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5221 states, 5220 states have (on average 4.72624521072797) internal successors, (24671), 5220 states have internal predecessors, (24671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:50,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5221 states to 5221 states and 24671 transitions. [2021-06-05 03:47:50,510 INFO L78 Accepts]: Start accepts. Automaton has 5221 states and 24671 transitions. Word has length 29 [2021-06-05 03:47:50,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:50,510 INFO L482 AbstractCegarLoop]: Abstraction has 5221 states and 24671 transitions. [2021-06-05 03:47:50,510 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:50,510 INFO L276 IsEmpty]: Start isEmpty. Operand 5221 states and 24671 transitions. [2021-06-05 03:47:50,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:50,519 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:50,519 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:50,519 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1065 [2021-06-05 03:47:50,519 INFO L430 AbstractCegarLoop]: === Iteration 1067 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:50,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:50,520 INFO L82 PathProgramCache]: Analyzing trace with hash -501375963, now seen corresponding path program 1062 times [2021-06-05 03:47:50,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:50,520 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105912980] [2021-06-05 03:47:50,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:50,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:50,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:50,649 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:50,649 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105912980] [2021-06-05 03:47:50,649 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105912980] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:50,649 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:50,649 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:50,649 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561595991] [2021-06-05 03:47:50,649 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:50,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:50,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:50,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:50,650 INFO L87 Difference]: Start difference. First operand 5221 states and 24671 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:50,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:50,743 INFO L93 Difference]: Finished difference Result 11358 states and 50579 transitions. [2021-06-05 03:47:50,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:50,743 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:50,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:50,770 INFO L225 Difference]: With dead ends: 11358 [2021-06-05 03:47:50,770 INFO L226 Difference]: Without dead ends: 10839 [2021-06-05 03:47:50,770 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 136.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:50,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10839 states. [2021-06-05 03:47:50,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10839 to 5117. [2021-06-05 03:47:50,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.7488272087568415) internal successors, (24295), 5116 states have internal predecessors, (24295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:50,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24295 transitions. [2021-06-05 03:47:50,995 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24295 transitions. Word has length 29 [2021-06-05 03:47:50,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:50,995 INFO L482 AbstractCegarLoop]: Abstraction has 5117 states and 24295 transitions. [2021-06-05 03:47:50,995 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:50,995 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24295 transitions. [2021-06-05 03:47:51,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:51,003 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:51,003 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:51,003 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1066 [2021-06-05 03:47:51,003 INFO L430 AbstractCegarLoop]: === Iteration 1068 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:51,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:51,004 INFO L82 PathProgramCache]: Analyzing trace with hash 1530951397, now seen corresponding path program 1063 times [2021-06-05 03:47:51,004 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:51,004 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119780013] [2021-06-05 03:47:51,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:51,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:51,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:51,127 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:51,127 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119780013] [2021-06-05 03:47:51,127 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119780013] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:51,127 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:51,127 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:51,127 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403038856] [2021-06-05 03:47:51,128 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:51,128 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:51,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:51,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:51,128 INFO L87 Difference]: Start difference. First operand 5117 states and 24295 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:51,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:51,226 INFO L93 Difference]: Finished difference Result 11672 states and 52065 transitions. [2021-06-05 03:47:51,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:51,227 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:51,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:51,254 INFO L225 Difference]: With dead ends: 11672 [2021-06-05 03:47:51,255 INFO L226 Difference]: Without dead ends: 11130 [2021-06-05 03:47:51,255 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 130.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:51,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11130 states. [2021-06-05 03:47:51,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11130 to 5328. [2021-06-05 03:47:51,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5328 states, 5327 states have (on average 4.721231462361555) internal successors, (25150), 5327 states have internal predecessors, (25150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:51,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5328 states to 5328 states and 25150 transitions. [2021-06-05 03:47:51,489 INFO L78 Accepts]: Start accepts. Automaton has 5328 states and 25150 transitions. Word has length 29 [2021-06-05 03:47:51,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:51,489 INFO L482 AbstractCegarLoop]: Abstraction has 5328 states and 25150 transitions. [2021-06-05 03:47:51,489 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:51,489 INFO L276 IsEmpty]: Start isEmpty. Operand 5328 states and 25150 transitions. [2021-06-05 03:47:51,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:51,498 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:51,498 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:51,498 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1067 [2021-06-05 03:47:51,498 INFO L430 AbstractCegarLoop]: === Iteration 1069 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:51,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:51,498 INFO L82 PathProgramCache]: Analyzing trace with hash -1682953273, now seen corresponding path program 1064 times [2021-06-05 03:47:51,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:51,498 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832805066] [2021-06-05 03:47:51,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:51,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:51,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:51,620 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:51,620 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832805066] [2021-06-05 03:47:51,620 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832805066] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:51,620 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:51,620 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:51,620 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986538700] [2021-06-05 03:47:51,620 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:51,620 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:51,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:51,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:51,621 INFO L87 Difference]: Start difference. First operand 5328 states and 25150 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:51,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:51,735 INFO L93 Difference]: Finished difference Result 11607 states and 51696 transitions. [2021-06-05 03:47:51,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:51,735 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:51,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:51,762 INFO L225 Difference]: With dead ends: 11607 [2021-06-05 03:47:51,762 INFO L226 Difference]: Without dead ends: 10987 [2021-06-05 03:47:51,762 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 146.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:51,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10987 states. [2021-06-05 03:47:51,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10987 to 5185. [2021-06-05 03:47:51,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5185 states, 5184 states have (on average 4.738233024691358) internal successors, (24563), 5184 states have internal predecessors, (24563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:51,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5185 states to 5185 states and 24563 transitions. [2021-06-05 03:47:51,991 INFO L78 Accepts]: Start accepts. Automaton has 5185 states and 24563 transitions. Word has length 29 [2021-06-05 03:47:51,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:51,991 INFO L482 AbstractCegarLoop]: Abstraction has 5185 states and 24563 transitions. [2021-06-05 03:47:51,992 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:51,992 INFO L276 IsEmpty]: Start isEmpty. Operand 5185 states and 24563 transitions. [2021-06-05 03:47:52,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:52,000 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:52,000 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:52,000 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1068 [2021-06-05 03:47:52,000 INFO L430 AbstractCegarLoop]: === Iteration 1070 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:52,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:52,001 INFO L82 PathProgramCache]: Analyzing trace with hash 1217904357, now seen corresponding path program 1065 times [2021-06-05 03:47:52,001 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:52,001 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469119693] [2021-06-05 03:47:52,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:52,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:52,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:52,136 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:52,136 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469119693] [2021-06-05 03:47:52,136 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469119693] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:52,136 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:52,136 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:52,136 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496502230] [2021-06-05 03:47:52,136 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:52,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:52,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:52,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:52,137 INFO L87 Difference]: Start difference. First operand 5185 states and 24563 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:52,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:52,254 INFO L93 Difference]: Finished difference Result 11396 states and 50887 transitions. [2021-06-05 03:47:52,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:52,254 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:52,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:52,281 INFO L225 Difference]: With dead ends: 11396 [2021-06-05 03:47:52,281 INFO L226 Difference]: Without dead ends: 10854 [2021-06-05 03:47:52,281 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 147.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:52,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10854 states. [2021-06-05 03:47:52,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10854 to 5289. [2021-06-05 03:47:52,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5289 states, 5288 states have (on average 4.718419062027231) internal successors, (24951), 5288 states have internal predecessors, (24951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:52,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5289 states to 5289 states and 24951 transitions. [2021-06-05 03:47:52,509 INFO L78 Accepts]: Start accepts. Automaton has 5289 states and 24951 transitions. Word has length 29 [2021-06-05 03:47:52,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:52,510 INFO L482 AbstractCegarLoop]: Abstraction has 5289 states and 24951 transitions. [2021-06-05 03:47:52,510 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:52,510 INFO L276 IsEmpty]: Start isEmpty. Operand 5289 states and 24951 transitions. [2021-06-05 03:47:52,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:52,518 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:52,518 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:52,518 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1069 [2021-06-05 03:47:52,518 INFO L430 AbstractCegarLoop]: === Iteration 1071 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:52,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:52,518 INFO L82 PathProgramCache]: Analyzing trace with hash 448132837, now seen corresponding path program 1066 times [2021-06-05 03:47:52,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:52,519 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388205688] [2021-06-05 03:47:52,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:52,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:52,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:52,655 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:52,655 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388205688] [2021-06-05 03:47:52,655 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388205688] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:52,655 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:52,655 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:52,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997673232] [2021-06-05 03:47:52,655 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:52,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:52,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:52,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:52,656 INFO L87 Difference]: Start difference. First operand 5289 states and 24951 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:52,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:52,767 INFO L93 Difference]: Finished difference Result 10997 states and 49295 transitions. [2021-06-05 03:47:52,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:52,767 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:52,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:52,794 INFO L225 Difference]: With dead ends: 10997 [2021-06-05 03:47:52,795 INFO L226 Difference]: Without dead ends: 10430 [2021-06-05 03:47:52,795 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 160.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:52,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10430 states. [2021-06-05 03:47:53,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10430 to 5185. [2021-06-05 03:47:53,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5185 states, 5184 states have (on average 4.728202160493828) internal successors, (24511), 5184 states have internal predecessors, (24511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:53,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5185 states to 5185 states and 24511 transitions. [2021-06-05 03:47:53,025 INFO L78 Accepts]: Start accepts. Automaton has 5185 states and 24511 transitions. Word has length 29 [2021-06-05 03:47:53,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:53,025 INFO L482 AbstractCegarLoop]: Abstraction has 5185 states and 24511 transitions. [2021-06-05 03:47:53,025 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:53,025 INFO L276 IsEmpty]: Start isEmpty. Operand 5185 states and 24511 transitions. [2021-06-05 03:47:53,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:53,034 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:53,034 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:53,034 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1070 [2021-06-05 03:47:53,034 INFO L430 AbstractCegarLoop]: === Iteration 1072 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:53,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:53,034 INFO L82 PathProgramCache]: Analyzing trace with hash 1605909319, now seen corresponding path program 1067 times [2021-06-05 03:47:53,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:53,034 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751936598] [2021-06-05 03:47:53,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:53,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:53,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:53,169 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:53,169 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751936598] [2021-06-05 03:47:53,169 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751936598] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:53,169 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:53,169 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:53,169 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858784098] [2021-06-05 03:47:53,170 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:53,170 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:53,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:53,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:53,170 INFO L87 Difference]: Start difference. First operand 5185 states and 24511 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:53,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:53,283 INFO L93 Difference]: Finished difference Result 11299 states and 50433 transitions. [2021-06-05 03:47:53,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:53,283 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:53,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:53,310 INFO L225 Difference]: With dead ends: 11299 [2021-06-05 03:47:53,310 INFO L226 Difference]: Without dead ends: 10822 [2021-06-05 03:47:53,310 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 159.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:53,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10822 states. [2021-06-05 03:47:53,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10822 to 5257. [2021-06-05 03:47:53,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5257 states, 5256 states have (on average 4.715943683409437) internal successors, (24787), 5256 states have internal predecessors, (24787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:53,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5257 states to 5257 states and 24787 transitions. [2021-06-05 03:47:53,543 INFO L78 Accepts]: Start accepts. Automaton has 5257 states and 24787 transitions. Word has length 29 [2021-06-05 03:47:53,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:53,543 INFO L482 AbstractCegarLoop]: Abstraction has 5257 states and 24787 transitions. [2021-06-05 03:47:53,543 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:53,543 INFO L276 IsEmpty]: Start isEmpty. Operand 5257 states and 24787 transitions. [2021-06-05 03:47:53,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:53,552 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:53,552 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:53,552 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1071 [2021-06-05 03:47:53,552 INFO L430 AbstractCegarLoop]: === Iteration 1073 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:53,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:53,552 INFO L82 PathProgramCache]: Analyzing trace with hash 1246231589, now seen corresponding path program 1068 times [2021-06-05 03:47:53,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:53,552 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941933380] [2021-06-05 03:47:53,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:53,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:53,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:53,687 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:53,687 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941933380] [2021-06-05 03:47:53,687 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941933380] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:53,687 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:53,687 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:53,687 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791714603] [2021-06-05 03:47:53,687 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:53,687 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:53,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:53,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:53,688 INFO L87 Difference]: Start difference. First operand 5257 states and 24787 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:53,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:53,801 INFO L93 Difference]: Finished difference Result 10965 states and 49131 transitions. [2021-06-05 03:47:53,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:53,801 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:53,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:53,827 INFO L225 Difference]: With dead ends: 10965 [2021-06-05 03:47:53,827 INFO L226 Difference]: Without dead ends: 10362 [2021-06-05 03:47:53,827 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 158.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:53,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10362 states. [2021-06-05 03:47:54,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10362 to 5117. [2021-06-05 03:47:54,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.743354182955434) internal successors, (24267), 5116 states have internal predecessors, (24267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:54,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24267 transitions. [2021-06-05 03:47:54,054 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24267 transitions. Word has length 29 [2021-06-05 03:47:54,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:54,054 INFO L482 AbstractCegarLoop]: Abstraction has 5117 states and 24267 transitions. [2021-06-05 03:47:54,054 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:54,054 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24267 transitions. [2021-06-05 03:47:54,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:54,062 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:54,063 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:54,063 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1072 [2021-06-05 03:47:54,063 INFO L430 AbstractCegarLoop]: === Iteration 1074 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:54,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:54,063 INFO L82 PathProgramCache]: Analyzing trace with hash 741565127, now seen corresponding path program 1069 times [2021-06-05 03:47:54,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:54,063 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435843107] [2021-06-05 03:47:54,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:54,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:54,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:54,196 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:54,196 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435843107] [2021-06-05 03:47:54,196 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435843107] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:54,196 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:54,196 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:54,196 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524509811] [2021-06-05 03:47:54,196 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:54,196 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:54,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:54,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:54,197 INFO L87 Difference]: Start difference. First operand 5117 states and 24267 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:54,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:54,298 INFO L93 Difference]: Finished difference Result 11433 states and 50981 transitions. [2021-06-05 03:47:54,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:54,298 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:54,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:54,327 INFO L225 Difference]: With dead ends: 11433 [2021-06-05 03:47:54,327 INFO L226 Difference]: Without dead ends: 10891 [2021-06-05 03:47:54,327 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 140.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:54,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10891 states. [2021-06-05 03:47:54,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10891 to 5237. [2021-06-05 03:47:54,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5237 states, 5236 states have (on average 4.728609625668449) internal successors, (24759), 5236 states have internal predecessors, (24759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:54,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5237 states to 5237 states and 24759 transitions. [2021-06-05 03:47:54,564 INFO L78 Accepts]: Start accepts. Automaton has 5237 states and 24759 transitions. Word has length 29 [2021-06-05 03:47:54,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:54,564 INFO L482 AbstractCegarLoop]: Abstraction has 5237 states and 24759 transitions. [2021-06-05 03:47:54,564 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:54,564 INFO L276 IsEmpty]: Start isEmpty. Operand 5237 states and 24759 transitions. [2021-06-05 03:47:54,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:54,573 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:54,573 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:54,573 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1073 [2021-06-05 03:47:54,573 INFO L430 AbstractCegarLoop]: === Iteration 1075 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:54,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:54,573 INFO L82 PathProgramCache]: Analyzing trace with hash -946681145, now seen corresponding path program 1070 times [2021-06-05 03:47:54,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:54,573 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361843595] [2021-06-05 03:47:54,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:54,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:54,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:54,712 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:54,712 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361843595] [2021-06-05 03:47:54,712 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361843595] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:54,712 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:54,712 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:54,712 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124088584] [2021-06-05 03:47:54,712 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:54,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:54,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:54,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:54,712 INFO L87 Difference]: Start difference. First operand 5237 states and 24759 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:54,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:54,821 INFO L93 Difference]: Finished difference Result 11306 states and 50374 transitions. [2021-06-05 03:47:54,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:54,821 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:54,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:54,848 INFO L225 Difference]: With dead ends: 11306 [2021-06-05 03:47:54,848 INFO L226 Difference]: Without dead ends: 10811 [2021-06-05 03:47:54,848 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 142.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:54,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10811 states. [2021-06-05 03:47:55,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10811 to 5157. [2021-06-05 03:47:55,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5157 states, 5156 states have (on average 4.738363072148952) internal successors, (24431), 5156 states have internal predecessors, (24431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:55,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5157 states to 5157 states and 24431 transitions. [2021-06-05 03:47:55,087 INFO L78 Accepts]: Start accepts. Automaton has 5157 states and 24431 transitions. Word has length 29 [2021-06-05 03:47:55,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:55,087 INFO L482 AbstractCegarLoop]: Abstraction has 5157 states and 24431 transitions. [2021-06-05 03:47:55,087 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:55,087 INFO L276 IsEmpty]: Start isEmpty. Operand 5157 states and 24431 transitions. [2021-06-05 03:47:55,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:55,096 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:55,096 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:55,096 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1074 [2021-06-05 03:47:55,096 INFO L430 AbstractCegarLoop]: === Iteration 1076 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:55,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:55,096 INFO L82 PathProgramCache]: Analyzing trace with hash -1301398619, now seen corresponding path program 1071 times [2021-06-05 03:47:55,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:55,096 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151818532] [2021-06-05 03:47:55,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:55,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:55,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:55,236 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:55,236 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151818532] [2021-06-05 03:47:55,236 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151818532] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:55,236 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:55,236 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:55,236 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972667890] [2021-06-05 03:47:55,236 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:55,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:55,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:55,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:55,236 INFO L87 Difference]: Start difference. First operand 5157 states and 24431 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:55,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:55,337 INFO L93 Difference]: Finished difference Result 11282 states and 50362 transitions. [2021-06-05 03:47:55,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:55,338 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:55,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:55,365 INFO L225 Difference]: With dead ends: 11282 [2021-06-05 03:47:55,365 INFO L226 Difference]: Without dead ends: 10740 [2021-06-05 03:47:55,365 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 146.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:55,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10740 states. [2021-06-05 03:47:55,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10740 to 5261. [2021-06-05 03:47:55,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5261 states, 5260 states have (on average 4.7184410646387835) internal successors, (24819), 5260 states have internal predecessors, (24819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:55,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5261 states to 5261 states and 24819 transitions. [2021-06-05 03:47:55,596 INFO L78 Accepts]: Start accepts. Automaton has 5261 states and 24819 transitions. Word has length 29 [2021-06-05 03:47:55,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:55,596 INFO L482 AbstractCegarLoop]: Abstraction has 5261 states and 24819 transitions. [2021-06-05 03:47:55,597 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:55,597 INFO L276 IsEmpty]: Start isEmpty. Operand 5261 states and 24819 transitions. [2021-06-05 03:47:55,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:55,605 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:55,605 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:55,605 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1075 [2021-06-05 03:47:55,605 INFO L430 AbstractCegarLoop]: === Iteration 1077 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:55,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:55,606 INFO L82 PathProgramCache]: Analyzing trace with hash -2137232697, now seen corresponding path program 1072 times [2021-06-05 03:47:55,606 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:55,606 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026954282] [2021-06-05 03:47:55,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:55,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:55,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:55,744 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:55,744 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026954282] [2021-06-05 03:47:55,744 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026954282] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:55,744 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:55,745 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:55,745 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656960981] [2021-06-05 03:47:55,745 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:55,745 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:55,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:55,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:55,745 INFO L87 Difference]: Start difference. First operand 5261 states and 24819 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:55,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:55,860 INFO L93 Difference]: Finished difference Result 10883 states and 48770 transitions. [2021-06-05 03:47:55,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:55,860 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:55,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:55,887 INFO L225 Difference]: With dead ends: 10883 [2021-06-05 03:47:55,887 INFO L226 Difference]: Without dead ends: 10316 [2021-06-05 03:47:55,887 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 161.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:56,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10316 states. [2021-06-05 03:47:56,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10316 to 5157. [2021-06-05 03:47:56,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5157 states, 5156 states have (on average 4.730605120248255) internal successors, (24391), 5156 states have internal predecessors, (24391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:56,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5157 states to 5157 states and 24391 transitions. [2021-06-05 03:47:56,116 INFO L78 Accepts]: Start accepts. Automaton has 5157 states and 24391 transitions. Word has length 29 [2021-06-05 03:47:56,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:56,116 INFO L482 AbstractCegarLoop]: Abstraction has 5157 states and 24391 transitions. [2021-06-05 03:47:56,116 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:56,116 INFO L276 IsEmpty]: Start isEmpty. Operand 5157 states and 24391 transitions. [2021-06-05 03:47:56,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:56,125 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:56,125 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:56,125 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1076 [2021-06-05 03:47:56,125 INFO L430 AbstractCegarLoop]: === Iteration 1078 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:56,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:56,125 INFO L82 PathProgramCache]: Analyzing trace with hash -1962736953, now seen corresponding path program 1073 times [2021-06-05 03:47:56,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:56,125 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112810369] [2021-06-05 03:47:56,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:56,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:56,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:56,252 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:56,252 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112810369] [2021-06-05 03:47:56,252 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112810369] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:56,252 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:56,252 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:56,252 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557117175] [2021-06-05 03:47:56,252 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:56,252 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:56,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:56,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:56,252 INFO L87 Difference]: Start difference. First operand 5157 states and 24391 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:56,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:56,347 INFO L93 Difference]: Finished difference Result 11099 states and 49527 transitions. [2021-06-05 03:47:56,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:56,348 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:56,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:56,375 INFO L225 Difference]: With dead ends: 11099 [2021-06-05 03:47:56,375 INFO L226 Difference]: Without dead ends: 10684 [2021-06-05 03:47:56,375 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 134.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:56,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10684 states. [2021-06-05 03:47:56,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10684 to 5205. [2021-06-05 03:47:56,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5205 states, 5204 states have (on average 4.720791698693313) internal successors, (24567), 5204 states have internal predecessors, (24567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:56,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5205 states to 5205 states and 24567 transitions. [2021-06-05 03:47:56,602 INFO L78 Accepts]: Start accepts. Automaton has 5205 states and 24567 transitions. Word has length 29 [2021-06-05 03:47:56,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:56,602 INFO L482 AbstractCegarLoop]: Abstraction has 5205 states and 24567 transitions. [2021-06-05 03:47:56,602 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:56,602 INFO L276 IsEmpty]: Start isEmpty. Operand 5205 states and 24567 transitions. [2021-06-05 03:47:56,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:56,610 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:56,610 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:56,610 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1077 [2021-06-05 03:47:56,611 INFO L430 AbstractCegarLoop]: === Iteration 1079 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:56,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:56,611 INFO L82 PathProgramCache]: Analyzing trace with hash -1053131995, now seen corresponding path program 1074 times [2021-06-05 03:47:56,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:56,611 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121916528] [2021-06-05 03:47:56,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:56,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:56,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:56,736 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:56,736 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121916528] [2021-06-05 03:47:56,736 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121916528] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:56,736 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:56,736 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:56,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377936949] [2021-06-05 03:47:56,736 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:56,736 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:56,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:56,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:56,736 INFO L87 Difference]: Start difference. First operand 5205 states and 24567 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:56,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:56,845 INFO L93 Difference]: Finished difference Result 10827 states and 48518 transitions. [2021-06-05 03:47:56,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:56,846 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:56,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:56,871 INFO L225 Difference]: With dead ends: 10827 [2021-06-05 03:47:56,872 INFO L226 Difference]: Without dead ends: 10276 [2021-06-05 03:47:56,872 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 148.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:56,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10276 states. [2021-06-05 03:47:57,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10276 to 5117. [2021-06-05 03:47:57,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.739444878811572) internal successors, (24247), 5116 states have internal predecessors, (24247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:57,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24247 transitions. [2021-06-05 03:47:57,097 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24247 transitions. Word has length 29 [2021-06-05 03:47:57,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:57,097 INFO L482 AbstractCegarLoop]: Abstraction has 5117 states and 24247 transitions. [2021-06-05 03:47:57,097 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:57,097 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24247 transitions. [2021-06-05 03:47:57,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:57,105 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:57,105 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:57,105 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1078 [2021-06-05 03:47:57,105 INFO L430 AbstractCegarLoop]: === Iteration 1080 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:57,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:57,106 INFO L82 PathProgramCache]: Analyzing trace with hash 821085865, now seen corresponding path program 1075 times [2021-06-05 03:47:57,106 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:57,106 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192049075] [2021-06-05 03:47:57,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:57,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:57,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:57,240 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:57,240 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192049075] [2021-06-05 03:47:57,240 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192049075] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:57,240 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:57,240 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:57,240 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541193586] [2021-06-05 03:47:57,240 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:57,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:57,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:57,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:57,240 INFO L87 Difference]: Start difference. First operand 5117 states and 24247 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:57,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:57,354 INFO L93 Difference]: Finished difference Result 11158 states and 49819 transitions. [2021-06-05 03:47:57,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:57,354 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:57,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:57,382 INFO L225 Difference]: With dead ends: 11158 [2021-06-05 03:47:57,382 INFO L226 Difference]: Without dead ends: 10681 [2021-06-05 03:47:57,382 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 158.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:57,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10681 states. [2021-06-05 03:47:57,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10681 to 5189. [2021-06-05 03:47:57,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5189 states, 5188 states have (on average 4.731495759444873) internal successors, (24547), 5188 states have internal predecessors, (24547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:57,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5189 states to 5189 states and 24547 transitions. [2021-06-05 03:47:57,611 INFO L78 Accepts]: Start accepts. Automaton has 5189 states and 24547 transitions. Word has length 29 [2021-06-05 03:47:57,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:57,611 INFO L482 AbstractCegarLoop]: Abstraction has 5189 states and 24547 transitions. [2021-06-05 03:47:57,611 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:57,611 INFO L276 IsEmpty]: Start isEmpty. Operand 5189 states and 24547 transitions. [2021-06-05 03:47:57,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:57,620 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:57,620 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:57,620 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1079 [2021-06-05 03:47:57,620 INFO L430 AbstractCegarLoop]: === Iteration 1081 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:57,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:57,620 INFO L82 PathProgramCache]: Analyzing trace with hash -25711097, now seen corresponding path program 1076 times [2021-06-05 03:47:57,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:57,620 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729272366] [2021-06-05 03:47:57,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:57,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:57,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:57,752 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:57,752 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729272366] [2021-06-05 03:47:57,752 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729272366] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:57,752 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:57,752 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:57,752 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442534580] [2021-06-05 03:47:57,752 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:57,752 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:57,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:57,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:57,753 INFO L87 Difference]: Start difference. First operand 5189 states and 24547 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:57,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:57,864 INFO L93 Difference]: Finished difference Result 11096 states and 49502 transitions. [2021-06-05 03:47:57,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:57,865 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:57,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:57,891 INFO L225 Difference]: With dead ends: 11096 [2021-06-05 03:47:57,891 INFO L226 Difference]: Without dead ends: 10633 [2021-06-05 03:47:57,891 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 139.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:58,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10633 states. [2021-06-05 03:47:58,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10633 to 5141. [2021-06-05 03:47:58,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5141 states, 5140 states have (on average 4.736770428015564) internal successors, (24347), 5140 states have internal predecessors, (24347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:58,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5141 states to 5141 states and 24347 transitions. [2021-06-05 03:47:58,121 INFO L78 Accepts]: Start accepts. Automaton has 5141 states and 24347 transitions. Word has length 29 [2021-06-05 03:47:58,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:58,121 INFO L482 AbstractCegarLoop]: Abstraction has 5141 states and 24347 transitions. [2021-06-05 03:47:58,121 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:58,121 INFO L276 IsEmpty]: Start isEmpty. Operand 5141 states and 24347 transitions. [2021-06-05 03:47:58,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:58,130 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:58,130 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:58,130 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1080 [2021-06-05 03:47:58,130 INFO L430 AbstractCegarLoop]: === Iteration 1082 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:58,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:58,130 INFO L82 PathProgramCache]: Analyzing trace with hash -1221877881, now seen corresponding path program 1077 times [2021-06-05 03:47:58,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:58,130 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339501933] [2021-06-05 03:47:58,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:58,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:58,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:58,265 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:58,265 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339501933] [2021-06-05 03:47:58,265 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339501933] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:58,265 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:58,265 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:58,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575947046] [2021-06-05 03:47:58,266 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:58,266 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:58,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:58,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:58,266 INFO L87 Difference]: Start difference. First operand 5141 states and 24347 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:58,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:58,398 INFO L93 Difference]: Finished difference Result 11072 states and 49474 transitions. [2021-06-05 03:47:58,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:58,398 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:58,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:58,425 INFO L225 Difference]: With dead ends: 11072 [2021-06-05 03:47:58,425 INFO L226 Difference]: Without dead ends: 10595 [2021-06-05 03:47:58,425 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 159.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:58,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10595 states. [2021-06-05 03:47:58,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10595 to 5213. [2021-06-05 03:47:58,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5213 states, 5212 states have (on average 4.724290099769762) internal successors, (24623), 5212 states have internal predecessors, (24623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:58,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5213 states to 5213 states and 24623 transitions. [2021-06-05 03:47:58,653 INFO L78 Accepts]: Start accepts. Automaton has 5213 states and 24623 transitions. Word has length 29 [2021-06-05 03:47:58,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:58,653 INFO L482 AbstractCegarLoop]: Abstraction has 5213 states and 24623 transitions. [2021-06-05 03:47:58,653 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:58,653 INFO L276 IsEmpty]: Start isEmpty. Operand 5213 states and 24623 transitions. [2021-06-05 03:47:58,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:58,662 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:58,662 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:58,662 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1081 [2021-06-05 03:47:58,662 INFO L430 AbstractCegarLoop]: === Iteration 1083 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:58,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:58,662 INFO L82 PathProgramCache]: Analyzing trace with hash -1647618169, now seen corresponding path program 1078 times [2021-06-05 03:47:58,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:58,662 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866437433] [2021-06-05 03:47:58,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:58,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:58,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:58,797 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:58,797 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866437433] [2021-06-05 03:47:58,797 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866437433] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:58,797 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:58,797 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:58,797 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2166223] [2021-06-05 03:47:58,797 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:58,797 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:58,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:58,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:58,798 INFO L87 Difference]: Start difference. First operand 5213 states and 24623 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:58,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:58,920 INFO L93 Difference]: Finished difference Result 10738 states and 48172 transitions. [2021-06-05 03:47:58,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:58,920 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:58,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:58,947 INFO L225 Difference]: With dead ends: 10738 [2021-06-05 03:47:58,947 INFO L226 Difference]: Without dead ends: 10203 [2021-06-05 03:47:58,947 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 158.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:59,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10203 states. [2021-06-05 03:47:59,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10203 to 5141. [2021-06-05 03:47:59,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5141 states, 5140 states have (on average 4.732101167315175) internal successors, (24323), 5140 states have internal predecessors, (24323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:59,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5141 states to 5141 states and 24323 transitions. [2021-06-05 03:47:59,173 INFO L78 Accepts]: Start accepts. Automaton has 5141 states and 24323 transitions. Word has length 29 [2021-06-05 03:47:59,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:59,173 INFO L482 AbstractCegarLoop]: Abstraction has 5141 states and 24323 transitions. [2021-06-05 03:47:59,173 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:59,174 INFO L276 IsEmpty]: Start isEmpty. Operand 5141 states and 24323 transitions. [2021-06-05 03:47:59,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:59,182 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:59,182 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:59,182 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1082 [2021-06-05 03:47:59,182 INFO L430 AbstractCegarLoop]: === Iteration 1084 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:59,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:59,182 INFO L82 PathProgramCache]: Analyzing trace with hash -2078625947, now seen corresponding path program 1079 times [2021-06-05 03:47:59,182 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:59,182 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993503963] [2021-06-05 03:47:59,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:59,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:59,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:59,308 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:59,308 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993503963] [2021-06-05 03:47:59,308 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993503963] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:59,309 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:59,309 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:59,309 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926819875] [2021-06-05 03:47:59,309 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:59,309 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:59,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:59,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:59,309 INFO L87 Difference]: Start difference. First operand 5141 states and 24323 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:59,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:59,401 INFO L93 Difference]: Finished difference Result 10986 states and 49057 transitions. [2021-06-05 03:47:59,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:59,401 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:59,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:59,427 INFO L225 Difference]: With dead ends: 10986 [2021-06-05 03:47:59,427 INFO L226 Difference]: Without dead ends: 10571 [2021-06-05 03:47:59,427 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 133.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:47:59,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10571 states. [2021-06-05 03:47:59,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10571 to 5189. [2021-06-05 03:47:59,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5189 states, 5188 states have (on average 4.722243639167309) internal successors, (24499), 5188 states have internal predecessors, (24499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:59,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5189 states to 5189 states and 24499 transitions. [2021-06-05 03:47:59,726 INFO L78 Accepts]: Start accepts. Automaton has 5189 states and 24499 transitions. Word has length 29 [2021-06-05 03:47:59,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:47:59,726 INFO L482 AbstractCegarLoop]: Abstraction has 5189 states and 24499 transitions. [2021-06-05 03:47:59,726 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:59,726 INFO L276 IsEmpty]: Start isEmpty. Operand 5189 states and 24499 transitions. [2021-06-05 03:47:59,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:47:59,735 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:47:59,735 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:47:59,735 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1083 [2021-06-05 03:47:59,735 INFO L430 AbstractCegarLoop]: === Iteration 1085 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:47:59,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:47:59,736 INFO L82 PathProgramCache]: Analyzing trace with hash 349323975, now seen corresponding path program 1080 times [2021-06-05 03:47:59,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:47:59,736 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134542335] [2021-06-05 03:47:59,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:47:59,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:47:59,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:47:59,857 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:47:59,857 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134542335] [2021-06-05 03:47:59,857 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134542335] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:47:59,857 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:47:59,857 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:47:59,857 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021529194] [2021-06-05 03:47:59,857 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:47:59,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:47:59,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:47:59,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:47:59,857 INFO L87 Difference]: Start difference. First operand 5189 states and 24499 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:47:59,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:47:59,967 INFO L93 Difference]: Finished difference Result 10714 states and 48048 transitions. [2021-06-05 03:47:59,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:47:59,968 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:47:59,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:47:59,993 INFO L225 Difference]: With dead ends: 10714 [2021-06-05 03:47:59,993 INFO L226 Difference]: Without dead ends: 10139 [2021-06-05 03:47:59,993 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 144.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:00,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10139 states. [2021-06-05 03:48:00,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10139 to 5077. [2021-06-05 03:48:00,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5077 states, 5076 states have (on average 4.7551221434200155) internal successors, (24137), 5076 states have internal predecessors, (24137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:00,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5077 states to 5077 states and 24137 transitions. [2021-06-05 03:48:00,216 INFO L78 Accepts]: Start accepts. Automaton has 5077 states and 24137 transitions. Word has length 29 [2021-06-05 03:48:00,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:00,216 INFO L482 AbstractCegarLoop]: Abstraction has 5077 states and 24137 transitions. [2021-06-05 03:48:00,216 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:00,216 INFO L276 IsEmpty]: Start isEmpty. Operand 5077 states and 24137 transitions. [2021-06-05 03:48:00,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:00,225 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:00,225 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:00,225 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1084 [2021-06-05 03:48:00,225 INFO L430 AbstractCegarLoop]: === Iteration 1086 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:00,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:00,225 INFO L82 PathProgramCache]: Analyzing trace with hash 944492683, now seen corresponding path program 1081 times [2021-06-05 03:48:00,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:00,225 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744258741] [2021-06-05 03:48:00,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:00,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:00,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:00,350 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:00,350 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744258741] [2021-06-05 03:48:00,350 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744258741] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:00,350 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:00,350 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:00,350 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728305732] [2021-06-05 03:48:00,350 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:00,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:00,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:00,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:00,351 INFO L87 Difference]: Start difference. First operand 5077 states and 24137 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:00,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:00,461 INFO L93 Difference]: Finished difference Result 11024 states and 49284 transitions. [2021-06-05 03:48:00,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:00,461 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:00,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:00,488 INFO L225 Difference]: With dead ends: 11024 [2021-06-05 03:48:00,488 INFO L226 Difference]: Without dead ends: 10609 [2021-06-05 03:48:00,488 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 148.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:00,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10609 states. [2021-06-05 03:48:00,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10609 to 5213. [2021-06-05 03:48:00,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5213 states, 5212 states have (on average 4.749232540291635) internal successors, (24753), 5212 states have internal predecessors, (24753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:00,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5213 states to 5213 states and 24753 transitions. [2021-06-05 03:48:00,718 INFO L78 Accepts]: Start accepts. Automaton has 5213 states and 24753 transitions. Word has length 29 [2021-06-05 03:48:00,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:00,718 INFO L482 AbstractCegarLoop]: Abstraction has 5213 states and 24753 transitions. [2021-06-05 03:48:00,718 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:00,718 INFO L276 IsEmpty]: Start isEmpty. Operand 5213 states and 24753 transitions. [2021-06-05 03:48:00,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:00,727 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:00,727 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:00,727 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1085 [2021-06-05 03:48:00,727 INFO L430 AbstractCegarLoop]: === Iteration 1087 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:00,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:00,727 INFO L82 PathProgramCache]: Analyzing trace with hash -1595654005, now seen corresponding path program 1082 times [2021-06-05 03:48:00,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:00,727 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723738865] [2021-06-05 03:48:00,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:00,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:00,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:00,853 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:00,853 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723738865] [2021-06-05 03:48:00,853 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723738865] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:00,853 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:00,853 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:00,853 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975039799] [2021-06-05 03:48:00,853 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:00,853 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:00,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:00,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:00,853 INFO L87 Difference]: Start difference. First operand 5213 states and 24753 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:00,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:00,950 INFO L93 Difference]: Finished difference Result 11151 states and 49763 transitions. [2021-06-05 03:48:00,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:00,951 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:00,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:00,977 INFO L225 Difference]: With dead ends: 11151 [2021-06-05 03:48:00,977 INFO L226 Difference]: Without dead ends: 10529 [2021-06-05 03:48:00,977 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 133.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:01,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10529 states. [2021-06-05 03:48:01,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10529 to 5133. [2021-06-05 03:48:01,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5133 states, 5132 states have (on average 4.754676539360873) internal successors, (24401), 5132 states have internal predecessors, (24401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:01,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5133 states to 5133 states and 24401 transitions. [2021-06-05 03:48:01,206 INFO L78 Accepts]: Start accepts. Automaton has 5133 states and 24401 transitions. Word has length 29 [2021-06-05 03:48:01,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:01,206 INFO L482 AbstractCegarLoop]: Abstraction has 5133 states and 24401 transitions. [2021-06-05 03:48:01,206 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:01,206 INFO L276 IsEmpty]: Start isEmpty. Operand 5133 states and 24401 transitions. [2021-06-05 03:48:01,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:01,215 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:01,215 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:01,215 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1086 [2021-06-05 03:48:01,215 INFO L430 AbstractCegarLoop]: === Iteration 1088 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:01,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:01,215 INFO L82 PathProgramCache]: Analyzing trace with hash 1029280681, now seen corresponding path program 1083 times [2021-06-05 03:48:01,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:01,215 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925403268] [2021-06-05 03:48:01,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:01,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:01,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:01,333 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:01,333 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925403268] [2021-06-05 03:48:01,333 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925403268] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:01,333 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:01,333 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:01,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450286247] [2021-06-05 03:48:01,333 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:01,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:01,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:01,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:01,334 INFO L87 Difference]: Start difference. First operand 5133 states and 24401 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:01,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:01,447 INFO L93 Difference]: Finished difference Result 10849 states and 48501 transitions. [2021-06-05 03:48:01,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:01,447 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:01,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:01,473 INFO L225 Difference]: With dead ends: 10849 [2021-06-05 03:48:01,473 INFO L226 Difference]: Without dead ends: 10434 [2021-06-05 03:48:01,473 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 141.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:01,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10434 states. [2021-06-05 03:48:01,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10434 to 5165. [2021-06-05 03:48:01,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5165 states, 5164 states have (on average 4.746901626646011) internal successors, (24513), 5164 states have internal predecessors, (24513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:01,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5165 states to 5165 states and 24513 transitions. [2021-06-05 03:48:01,700 INFO L78 Accepts]: Start accepts. Automaton has 5165 states and 24513 transitions. Word has length 29 [2021-06-05 03:48:01,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:01,700 INFO L482 AbstractCegarLoop]: Abstraction has 5165 states and 24513 transitions. [2021-06-05 03:48:01,701 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:01,701 INFO L276 IsEmpty]: Start isEmpty. Operand 5165 states and 24513 transitions. [2021-06-05 03:48:01,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:01,709 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:01,709 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:01,709 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1087 [2021-06-05 03:48:01,709 INFO L430 AbstractCegarLoop]: === Iteration 1089 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:01,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:01,710 INFO L82 PathProgramCache]: Analyzing trace with hash -1372840313, now seen corresponding path program 1084 times [2021-06-05 03:48:01,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:01,710 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376757173] [2021-06-05 03:48:01,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:01,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:01,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:01,832 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:01,832 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376757173] [2021-06-05 03:48:01,833 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376757173] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:01,833 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:01,833 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:01,833 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695582551] [2021-06-05 03:48:01,833 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:01,833 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:01,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:01,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:01,833 INFO L87 Difference]: Start difference. First operand 5165 states and 24513 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:01,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:01,931 INFO L93 Difference]: Finished difference Result 10849 states and 48469 transitions. [2021-06-05 03:48:01,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:01,932 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:01,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:01,957 INFO L225 Difference]: With dead ends: 10849 [2021-06-05 03:48:01,958 INFO L226 Difference]: Without dead ends: 10402 [2021-06-05 03:48:01,958 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 126.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:02,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10402 states. [2021-06-05 03:48:02,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10402 to 5133. [2021-06-05 03:48:02,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5133 states, 5132 states have (on average 4.751558846453625) internal successors, (24385), 5132 states have internal predecessors, (24385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:02,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5133 states to 5133 states and 24385 transitions. [2021-06-05 03:48:02,186 INFO L78 Accepts]: Start accepts. Automaton has 5133 states and 24385 transitions. Word has length 29 [2021-06-05 03:48:02,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:02,186 INFO L482 AbstractCegarLoop]: Abstraction has 5133 states and 24385 transitions. [2021-06-05 03:48:02,186 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:02,186 INFO L276 IsEmpty]: Start isEmpty. Operand 5133 states and 24385 transitions. [2021-06-05 03:48:02,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:02,195 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:02,195 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:02,195 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1088 [2021-06-05 03:48:02,195 INFO L430 AbstractCegarLoop]: === Iteration 1090 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:02,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:02,195 INFO L82 PathProgramCache]: Analyzing trace with hash -651236763, now seen corresponding path program 1085 times [2021-06-05 03:48:02,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:02,195 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420679325] [2021-06-05 03:48:02,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:02,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:02,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:02,324 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:02,324 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420679325] [2021-06-05 03:48:02,324 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420679325] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:02,324 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:02,324 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:02,324 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943908478] [2021-06-05 03:48:02,324 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:02,324 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:02,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:02,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:02,324 INFO L87 Difference]: Start difference. First operand 5133 states and 24385 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:02,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:02,422 INFO L93 Difference]: Finished difference Result 11151 states and 49763 transitions. [2021-06-05 03:48:02,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:02,423 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:02,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:02,451 INFO L225 Difference]: With dead ends: 11151 [2021-06-05 03:48:02,451 INFO L226 Difference]: Without dead ends: 10609 [2021-06-05 03:48:02,451 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 135.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:02,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10609 states. [2021-06-05 03:48:02,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10609 to 5213. [2021-06-05 03:48:02,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5213 states, 5212 states have (on average 4.733883346124329) internal successors, (24673), 5212 states have internal predecessors, (24673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:02,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5213 states to 5213 states and 24673 transitions. [2021-06-05 03:48:02,684 INFO L78 Accepts]: Start accepts. Automaton has 5213 states and 24673 transitions. Word has length 29 [2021-06-05 03:48:02,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:02,684 INFO L482 AbstractCegarLoop]: Abstraction has 5213 states and 24673 transitions. [2021-06-05 03:48:02,684 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:02,685 INFO L276 IsEmpty]: Start isEmpty. Operand 5213 states and 24673 transitions. [2021-06-05 03:48:02,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:02,693 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:02,693 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:02,693 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1089 [2021-06-05 03:48:02,694 INFO L430 AbstractCegarLoop]: === Iteration 1091 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:02,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:02,694 INFO L82 PathProgramCache]: Analyzing trace with hash -858044729, now seen corresponding path program 1086 times [2021-06-05 03:48:02,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:02,694 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270681881] [2021-06-05 03:48:02,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:02,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:02,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:02,822 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:02,822 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270681881] [2021-06-05 03:48:02,822 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270681881] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:02,822 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:02,822 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:02,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635410172] [2021-06-05 03:48:02,822 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:02,822 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:02,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:02,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:02,823 INFO L87 Difference]: Start difference. First operand 5213 states and 24673 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:02,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:02,923 INFO L93 Difference]: Finished difference Result 11024 states and 49156 transitions. [2021-06-05 03:48:02,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:02,924 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:02,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:02,950 INFO L225 Difference]: With dead ends: 11024 [2021-06-05 03:48:02,951 INFO L226 Difference]: Without dead ends: 10497 [2021-06-05 03:48:02,951 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 135.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:03,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10497 states. [2021-06-05 03:48:03,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10497 to 5101. [2021-06-05 03:48:03,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5101 states, 5100 states have (on average 4.756274509803921) internal successors, (24257), 5100 states have internal predecessors, (24257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:03,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5101 states to 5101 states and 24257 transitions. [2021-06-05 03:48:03,181 INFO L78 Accepts]: Start accepts. Automaton has 5101 states and 24257 transitions. Word has length 29 [2021-06-05 03:48:03,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:03,181 INFO L482 AbstractCegarLoop]: Abstraction has 5101 states and 24257 transitions. [2021-06-05 03:48:03,181 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:03,181 INFO L276 IsEmpty]: Start isEmpty. Operand 5101 states and 24257 transitions. [2021-06-05 03:48:03,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:03,190 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:03,190 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:03,190 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1090 [2021-06-05 03:48:03,190 INFO L430 AbstractCegarLoop]: === Iteration 1092 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:03,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:03,190 INFO L82 PathProgramCache]: Analyzing trace with hash -1892427543, now seen corresponding path program 1087 times [2021-06-05 03:48:03,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:03,190 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255330377] [2021-06-05 03:48:03,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:03,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:03,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:03,325 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:03,325 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255330377] [2021-06-05 03:48:03,325 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255330377] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:03,325 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:03,325 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:03,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913358296] [2021-06-05 03:48:03,326 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:03,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:03,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:03,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:03,326 INFO L87 Difference]: Start difference. First operand 5101 states and 24257 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:03,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:03,447 INFO L93 Difference]: Finished difference Result 11138 states and 49803 transitions. [2021-06-05 03:48:03,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:03,447 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:03,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:03,475 INFO L225 Difference]: With dead ends: 11138 [2021-06-05 03:48:03,475 INFO L226 Difference]: Without dead ends: 10723 [2021-06-05 03:48:03,475 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 156.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:03,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10723 states. [2021-06-05 03:48:03,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10723 to 5221. [2021-06-05 03:48:03,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5221 states, 5220 states have (on average 4.747318007662836) internal successors, (24781), 5220 states have internal predecessors, (24781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:03,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5221 states to 5221 states and 24781 transitions. [2021-06-05 03:48:03,711 INFO L78 Accepts]: Start accepts. Automaton has 5221 states and 24781 transitions. Word has length 29 [2021-06-05 03:48:03,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:03,711 INFO L482 AbstractCegarLoop]: Abstraction has 5221 states and 24781 transitions. [2021-06-05 03:48:03,711 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:03,712 INFO L276 IsEmpty]: Start isEmpty. Operand 5221 states and 24781 transitions. [2021-06-05 03:48:03,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:03,721 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:03,721 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:03,721 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1091 [2021-06-05 03:48:03,721 INFO L430 AbstractCegarLoop]: === Iteration 1093 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:03,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:03,721 INFO L82 PathProgramCache]: Analyzing trace with hash -137606935, now seen corresponding path program 1088 times [2021-06-05 03:48:03,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:03,721 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806983243] [2021-06-05 03:48:03,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:03,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:03,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:03,852 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:03,852 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806983243] [2021-06-05 03:48:03,852 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806983243] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:03,852 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:03,852 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:03,852 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812370736] [2021-06-05 03:48:03,852 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:03,852 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:03,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:03,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:03,853 INFO L87 Difference]: Start difference. First operand 5221 states and 24781 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:03,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:03,995 INFO L93 Difference]: Finished difference Result 11265 states and 50282 transitions. [2021-06-05 03:48:03,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:03,996 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:03,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:04,029 INFO L225 Difference]: With dead ends: 11265 [2021-06-05 03:48:04,030 INFO L226 Difference]: Without dead ends: 10643 [2021-06-05 03:48:04,030 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 139.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:04,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10643 states. [2021-06-05 03:48:04,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10643 to 5141. [2021-06-05 03:48:04,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5141 states, 5140 states have (on average 4.751167315175097) internal successors, (24421), 5140 states have internal predecessors, (24421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:04,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5141 states to 5141 states and 24421 transitions. [2021-06-05 03:48:04,308 INFO L78 Accepts]: Start accepts. Automaton has 5141 states and 24421 transitions. Word has length 29 [2021-06-05 03:48:04,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:04,308 INFO L482 AbstractCegarLoop]: Abstraction has 5141 states and 24421 transitions. [2021-06-05 03:48:04,308 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:04,308 INFO L276 IsEmpty]: Start isEmpty. Operand 5141 states and 24421 transitions. [2021-06-05 03:48:04,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:04,317 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:04,317 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:04,317 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1092 [2021-06-05 03:48:04,317 INFO L430 AbstractCegarLoop]: === Iteration 1094 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:04,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:04,317 INFO L82 PathProgramCache]: Analyzing trace with hash 2070395945, now seen corresponding path program 1089 times [2021-06-05 03:48:04,317 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:04,318 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750341604] [2021-06-05 03:48:04,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:04,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:04,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:04,453 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:04,453 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750341604] [2021-06-05 03:48:04,453 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750341604] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:04,453 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:04,453 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:04,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306675521] [2021-06-05 03:48:04,453 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:04,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:04,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:04,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:04,454 INFO L87 Difference]: Start difference. First operand 5141 states and 24421 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:04,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:04,584 INFO L93 Difference]: Finished difference Result 11039 states and 49356 transitions. [2021-06-05 03:48:04,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:04,584 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:04,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:04,611 INFO L225 Difference]: With dead ends: 11039 [2021-06-05 03:48:04,611 INFO L226 Difference]: Without dead ends: 10624 [2021-06-05 03:48:04,612 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 160.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:04,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10624 states. [2021-06-05 03:48:04,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10624 to 5189. [2021-06-05 03:48:04,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5189 states, 5188 states have (on average 4.741133384734002) internal successors, (24597), 5188 states have internal predecessors, (24597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:04,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5189 states to 5189 states and 24597 transitions. [2021-06-05 03:48:04,845 INFO L78 Accepts]: Start accepts. Automaton has 5189 states and 24597 transitions. Word has length 29 [2021-06-05 03:48:04,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:04,845 INFO L482 AbstractCegarLoop]: Abstraction has 5189 states and 24597 transitions. [2021-06-05 03:48:04,845 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:04,845 INFO L276 IsEmpty]: Start isEmpty. Operand 5189 states and 24597 transitions. [2021-06-05 03:48:04,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:04,854 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:04,854 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:04,854 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1093 [2021-06-05 03:48:04,854 INFO L430 AbstractCegarLoop]: === Iteration 1095 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:04,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:04,854 INFO L82 PathProgramCache]: Analyzing trace with hash 1555715019, now seen corresponding path program 1090 times [2021-06-05 03:48:04,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:04,854 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274839625] [2021-06-05 03:48:04,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:04,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:04,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:04,989 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:04,989 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274839625] [2021-06-05 03:48:04,989 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274839625] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:04,989 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:04,989 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:04,989 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477911820] [2021-06-05 03:48:04,989 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:04,989 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:04,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:04,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:04,990 INFO L87 Difference]: Start difference. First operand 5189 states and 24597 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:05,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:05,113 INFO L93 Difference]: Finished difference Result 11099 states and 49572 transitions. [2021-06-05 03:48:05,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:05,113 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:05,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:05,139 INFO L225 Difference]: With dead ends: 11099 [2021-06-05 03:48:05,139 INFO L226 Difference]: Without dead ends: 10576 [2021-06-05 03:48:05,140 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 160.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:05,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10576 states. [2021-06-05 03:48:05,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10576 to 5141. [2021-06-05 03:48:05,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5141 states, 5140 states have (on average 4.746498054474708) internal successors, (24397), 5140 states have internal predecessors, (24397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:05,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5141 states to 5141 states and 24397 transitions. [2021-06-05 03:48:05,366 INFO L78 Accepts]: Start accepts. Automaton has 5141 states and 24397 transitions. Word has length 29 [2021-06-05 03:48:05,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:05,366 INFO L482 AbstractCegarLoop]: Abstraction has 5141 states and 24397 transitions. [2021-06-05 03:48:05,366 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:05,366 INFO L276 IsEmpty]: Start isEmpty. Operand 5141 states and 24397 transitions. [2021-06-05 03:48:05,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:05,374 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:05,374 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:05,374 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1094 [2021-06-05 03:48:05,375 INFO L430 AbstractCegarLoop]: === Iteration 1096 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:05,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:05,375 INFO L82 PathProgramCache]: Analyzing trace with hash -2000423989, now seen corresponding path program 1091 times [2021-06-05 03:48:05,375 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:05,375 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406883558] [2021-06-05 03:48:05,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:05,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:05,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:05,497 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:05,498 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406883558] [2021-06-05 03:48:05,498 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406883558] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:05,498 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:05,498 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:05,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931504127] [2021-06-05 03:48:05,498 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:05,498 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:05,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:05,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:05,498 INFO L87 Difference]: Start difference. First operand 5141 states and 24397 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:05,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:05,603 INFO L93 Difference]: Finished difference Result 11355 states and 50677 transitions. [2021-06-05 03:48:05,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:05,603 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:05,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:05,630 INFO L225 Difference]: With dead ends: 11355 [2021-06-05 03:48:05,630 INFO L226 Difference]: Without dead ends: 10813 [2021-06-05 03:48:05,630 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 131.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:05,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10813 states. [2021-06-05 03:48:05,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10813 to 5251. [2021-06-05 03:48:05,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5251 states, 5250 states have (on average 4.7241904761904765) internal successors, (24802), 5250 states have internal predecessors, (24802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:05,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5251 states to 5251 states and 24802 transitions. [2021-06-05 03:48:05,862 INFO L78 Accepts]: Start accepts. Automaton has 5251 states and 24802 transitions. Word has length 29 [2021-06-05 03:48:05,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:05,862 INFO L482 AbstractCegarLoop]: Abstraction has 5251 states and 24802 transitions. [2021-06-05 03:48:05,862 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:05,862 INFO L276 IsEmpty]: Start isEmpty. Operand 5251 states and 24802 transitions. [2021-06-05 03:48:05,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:05,871 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:05,871 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:05,871 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1095 [2021-06-05 03:48:05,871 INFO L430 AbstractCegarLoop]: === Iteration 1097 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:05,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:05,871 INFO L82 PathProgramCache]: Analyzing trace with hash 1553591209, now seen corresponding path program 1092 times [2021-06-05 03:48:05,872 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:05,872 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112973053] [2021-06-05 03:48:05,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:05,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:05,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:05,992 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:05,992 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112973053] [2021-06-05 03:48:05,993 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112973053] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:05,993 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:05,993 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:05,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894772446] [2021-06-05 03:48:05,993 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:05,993 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:05,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:05,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:05,993 INFO L87 Difference]: Start difference. First operand 5251 states and 24802 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:06,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:06,116 INFO L93 Difference]: Finished difference Result 11288 states and 50304 transitions. [2021-06-05 03:48:06,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:06,117 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:06,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:06,143 INFO L225 Difference]: With dead ends: 11288 [2021-06-05 03:48:06,143 INFO L226 Difference]: Without dead ends: 10663 [2021-06-05 03:48:06,143 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 145.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:06,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10663 states. [2021-06-05 03:48:06,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10663 to 5101. [2021-06-05 03:48:06,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5101 states, 5100 states have (on average 4.753137254901961) internal successors, (24241), 5100 states have internal predecessors, (24241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:06,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5101 states to 5101 states and 24241 transitions. [2021-06-05 03:48:06,373 INFO L78 Accepts]: Start accepts. Automaton has 5101 states and 24241 transitions. Word has length 29 [2021-06-05 03:48:06,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:06,373 INFO L482 AbstractCegarLoop]: Abstraction has 5101 states and 24241 transitions. [2021-06-05 03:48:06,373 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:06,373 INFO L276 IsEmpty]: Start isEmpty. Operand 5101 states and 24241 transitions. [2021-06-05 03:48:06,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:06,382 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:06,382 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:06,382 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1096 [2021-06-05 03:48:06,382 INFO L430 AbstractCegarLoop]: === Iteration 1098 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:06,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:06,382 INFO L82 PathProgramCache]: Analyzing trace with hash -385343545, now seen corresponding path program 1093 times [2021-06-05 03:48:06,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:06,382 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682807887] [2021-06-05 03:48:06,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:06,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:06,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:06,505 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:06,505 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682807887] [2021-06-05 03:48:06,505 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682807887] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:06,505 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:06,505 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:06,505 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701074489] [2021-06-05 03:48:06,505 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:06,505 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:06,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:06,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:06,506 INFO L87 Difference]: Start difference. First operand 5101 states and 24241 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:06,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:06,623 INFO L93 Difference]: Finished difference Result 10702 states and 47870 transitions. [2021-06-05 03:48:06,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:06,623 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:06,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:06,650 INFO L225 Difference]: With dead ends: 10702 [2021-06-05 03:48:06,650 INFO L226 Difference]: Without dead ends: 10287 [2021-06-05 03:48:06,650 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 147.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:06,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10287 states. [2021-06-05 03:48:06,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10287 to 5149. [2021-06-05 03:48:06,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5149 states, 5148 states have (on average 4.746114996114996) internal successors, (24433), 5148 states have internal predecessors, (24433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:06,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5149 states to 5149 states and 24433 transitions. [2021-06-05 03:48:06,878 INFO L78 Accepts]: Start accepts. Automaton has 5149 states and 24433 transitions. Word has length 29 [2021-06-05 03:48:06,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:06,879 INFO L482 AbstractCegarLoop]: Abstraction has 5149 states and 24433 transitions. [2021-06-05 03:48:06,879 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:06,879 INFO L276 IsEmpty]: Start isEmpty. Operand 5149 states and 24433 transitions. [2021-06-05 03:48:06,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:06,887 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:06,888 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:06,888 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1097 [2021-06-05 03:48:06,888 INFO L430 AbstractCegarLoop]: === Iteration 1099 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:06,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:06,888 INFO L82 PathProgramCache]: Analyzing trace with hash 1507502757, now seen corresponding path program 1094 times [2021-06-05 03:48:06,888 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:06,888 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206003271] [2021-06-05 03:48:06,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:06,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:07,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:07,013 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:07,014 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206003271] [2021-06-05 03:48:07,014 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206003271] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:07,014 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:07,014 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:07,014 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051136230] [2021-06-05 03:48:07,014 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:07,014 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:07,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:07,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:07,014 INFO L87 Difference]: Start difference. First operand 5149 states and 24433 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:07,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:07,122 INFO L93 Difference]: Finished difference Result 10702 states and 47838 transitions. [2021-06-05 03:48:07,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:07,122 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:07,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:07,148 INFO L225 Difference]: With dead ends: 10702 [2021-06-05 03:48:07,148 INFO L226 Difference]: Without dead ends: 10255 [2021-06-05 03:48:07,148 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 133.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:07,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10255 states. [2021-06-05 03:48:07,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10255 to 5117. [2021-06-05 03:48:07,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.750781860828773) internal successors, (24305), 5116 states have internal predecessors, (24305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:07,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24305 transitions. [2021-06-05 03:48:07,376 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24305 transitions. Word has length 29 [2021-06-05 03:48:07,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:07,376 INFO L482 AbstractCegarLoop]: Abstraction has 5117 states and 24305 transitions. [2021-06-05 03:48:07,376 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:07,376 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24305 transitions. [2021-06-05 03:48:07,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:07,385 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:07,385 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:07,385 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1098 [2021-06-05 03:48:07,385 INFO L430 AbstractCegarLoop]: === Iteration 1100 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:07,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:07,385 INFO L82 PathProgramCache]: Analyzing trace with hash -866245591, now seen corresponding path program 1095 times [2021-06-05 03:48:07,385 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:07,385 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055498551] [2021-06-05 03:48:07,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:07,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:07,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:07,523 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:07,523 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055498551] [2021-06-05 03:48:07,523 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055498551] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:07,523 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:07,523 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:07,523 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190476375] [2021-06-05 03:48:07,523 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:07,523 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:07,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:07,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:07,524 INFO L87 Difference]: Start difference. First operand 5117 states and 24305 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:07,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:07,643 INFO L93 Difference]: Finished difference Result 10778 states and 48198 transitions. [2021-06-05 03:48:07,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:07,643 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:07,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:07,670 INFO L225 Difference]: With dead ends: 10778 [2021-06-05 03:48:07,670 INFO L226 Difference]: Without dead ends: 10363 [2021-06-05 03:48:07,670 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 161.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:07,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10363 states. [2021-06-05 03:48:07,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10363 to 5165. [2021-06-05 03:48:07,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5165 states, 5164 states have (on average 4.740704879938033) internal successors, (24481), 5164 states have internal predecessors, (24481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:07,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5165 states to 5165 states and 24481 transitions. [2021-06-05 03:48:07,900 INFO L78 Accepts]: Start accepts. Automaton has 5165 states and 24481 transitions. Word has length 29 [2021-06-05 03:48:07,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:07,900 INFO L482 AbstractCegarLoop]: Abstraction has 5165 states and 24481 transitions. [2021-06-05 03:48:07,900 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:07,900 INFO L276 IsEmpty]: Start isEmpty. Operand 5165 states and 24481 transitions. [2021-06-05 03:48:07,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:07,909 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:07,909 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:07,909 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1099 [2021-06-05 03:48:07,909 INFO L430 AbstractCegarLoop]: === Iteration 1101 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:07,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:07,909 INFO L82 PathProgramCache]: Analyzing trace with hash 1432602473, now seen corresponding path program 1096 times [2021-06-05 03:48:07,909 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:07,909 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086184974] [2021-06-05 03:48:07,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:07,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:08,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:08,045 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:08,045 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086184974] [2021-06-05 03:48:08,045 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086184974] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:08,045 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:08,045 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:08,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472493356] [2021-06-05 03:48:08,045 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:08,045 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:08,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:08,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:08,045 INFO L87 Difference]: Start difference. First operand 5165 states and 24481 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:08,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:08,168 INFO L93 Difference]: Finished difference Result 10838 states and 48414 transitions. [2021-06-05 03:48:08,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:08,168 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:08,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:08,194 INFO L225 Difference]: With dead ends: 10838 [2021-06-05 03:48:08,194 INFO L226 Difference]: Without dead ends: 10315 [2021-06-05 03:48:08,194 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 160.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:08,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10315 states. [2021-06-05 03:48:08,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10315 to 5117. [2021-06-05 03:48:08,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.747654417513683) internal successors, (24289), 5116 states have internal predecessors, (24289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:08,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24289 transitions. [2021-06-05 03:48:08,421 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24289 transitions. Word has length 29 [2021-06-05 03:48:08,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:08,421 INFO L482 AbstractCegarLoop]: Abstraction has 5117 states and 24289 transitions. [2021-06-05 03:48:08,421 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:08,421 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24289 transitions. [2021-06-05 03:48:08,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:08,430 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:08,430 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:08,430 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1100 [2021-06-05 03:48:08,430 INFO L430 AbstractCegarLoop]: === Iteration 1102 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:08,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:08,430 INFO L82 PathProgramCache]: Analyzing trace with hash 1376806693, now seen corresponding path program 1097 times [2021-06-05 03:48:08,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:08,430 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498992072] [2021-06-05 03:48:08,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:08,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:08,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:08,564 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:08,564 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498992072] [2021-06-05 03:48:08,564 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498992072] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:08,564 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:08,564 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:08,564 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800327422] [2021-06-05 03:48:08,564 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:08,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:08,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:08,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:08,564 INFO L87 Difference]: Start difference. First operand 5117 states and 24289 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:08,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:08,666 INFO L93 Difference]: Finished difference Result 10778 states and 48182 transitions. [2021-06-05 03:48:08,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:08,666 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:08,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:08,693 INFO L225 Difference]: With dead ends: 10778 [2021-06-05 03:48:08,693 INFO L226 Difference]: Without dead ends: 10363 [2021-06-05 03:48:08,693 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 141.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:08,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10363 states. [2021-06-05 03:48:08,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10363 to 5165. [2021-06-05 03:48:08,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5165 states, 5164 states have (on average 4.737606506584044) internal successors, (24465), 5164 states have internal predecessors, (24465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:08,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5165 states to 5165 states and 24465 transitions. [2021-06-05 03:48:08,920 INFO L78 Accepts]: Start accepts. Automaton has 5165 states and 24465 transitions. Word has length 29 [2021-06-05 03:48:08,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:08,921 INFO L482 AbstractCegarLoop]: Abstraction has 5165 states and 24465 transitions. [2021-06-05 03:48:08,921 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:08,921 INFO L276 IsEmpty]: Start isEmpty. Operand 5165 states and 24465 transitions. [2021-06-05 03:48:08,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:08,929 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:08,929 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:08,929 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1101 [2021-06-05 03:48:08,930 INFO L430 AbstractCegarLoop]: === Iteration 1103 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:08,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:08,930 INFO L82 PathProgramCache]: Analyzing trace with hash -1837097977, now seen corresponding path program 1098 times [2021-06-05 03:48:08,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:08,930 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840669254] [2021-06-05 03:48:08,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:08,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:09,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:09,062 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:09,062 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840669254] [2021-06-05 03:48:09,062 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840669254] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:09,062 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:09,062 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:09,062 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938042143] [2021-06-05 03:48:09,062 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:09,063 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:09,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:09,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:09,063 INFO L87 Difference]: Start difference. First operand 5165 states and 24465 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:09,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:09,186 INFO L93 Difference]: Finished difference Result 10838 states and 48398 transitions. [2021-06-05 03:48:09,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:09,186 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:09,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:09,212 INFO L225 Difference]: With dead ends: 10838 [2021-06-05 03:48:09,212 INFO L226 Difference]: Without dead ends: 10299 [2021-06-05 03:48:09,212 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 157.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:09,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10299 states. [2021-06-05 03:48:09,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10299 to 5101. [2021-06-05 03:48:09,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5101 states, 5100 states have (on average 4.751568627450981) internal successors, (24233), 5100 states have internal predecessors, (24233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:09,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5101 states to 5101 states and 24233 transitions. [2021-06-05 03:48:09,481 INFO L78 Accepts]: Start accepts. Automaton has 5101 states and 24233 transitions. Word has length 29 [2021-06-05 03:48:09,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:09,481 INFO L482 AbstractCegarLoop]: Abstraction has 5101 states and 24233 transitions. [2021-06-05 03:48:09,481 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:09,481 INFO L276 IsEmpty]: Start isEmpty. Operand 5101 states and 24233 transitions. [2021-06-05 03:48:09,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:09,490 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:09,490 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:09,490 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1102 [2021-06-05 03:48:09,490 INFO L430 AbstractCegarLoop]: === Iteration 1104 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:09,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:09,490 INFO L82 PathProgramCache]: Analyzing trace with hash -2006154365, now seen corresponding path program 1099 times [2021-06-05 03:48:09,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:09,490 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639662982] [2021-06-05 03:48:09,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:09,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:09,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:09,617 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:09,617 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639662982] [2021-06-05 03:48:09,617 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639662982] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:09,617 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:09,617 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:09,617 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787126678] [2021-06-05 03:48:09,618 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:09,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:09,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:09,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:09,618 INFO L87 Difference]: Start difference. First operand 5101 states and 24233 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:09,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:09,719 INFO L93 Difference]: Finished difference Result 11265 states and 50306 transitions. [2021-06-05 03:48:09,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:09,719 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:09,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:09,747 INFO L225 Difference]: With dead ends: 11265 [2021-06-05 03:48:09,747 INFO L226 Difference]: Without dead ends: 10723 [2021-06-05 03:48:09,747 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 134.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:09,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10723 states. [2021-06-05 03:48:09,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10723 to 5221. [2021-06-05 03:48:09,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5221 states, 5220 states have (on average 4.736590038314176) internal successors, (24725), 5220 states have internal predecessors, (24725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:09,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5221 states to 5221 states and 24725 transitions. [2021-06-05 03:48:09,981 INFO L78 Accepts]: Start accepts. Automaton has 5221 states and 24725 transitions. Word has length 29 [2021-06-05 03:48:09,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:09,981 INFO L482 AbstractCegarLoop]: Abstraction has 5221 states and 24725 transitions. [2021-06-05 03:48:09,981 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:09,981 INFO L276 IsEmpty]: Start isEmpty. Operand 5221 states and 24725 transitions. [2021-06-05 03:48:09,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:09,989 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:09,989 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:09,989 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1103 [2021-06-05 03:48:09,990 INFO L430 AbstractCegarLoop]: === Iteration 1105 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:09,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:09,990 INFO L82 PathProgramCache]: Analyzing trace with hash 2082004965, now seen corresponding path program 1100 times [2021-06-05 03:48:09,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:09,990 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152415288] [2021-06-05 03:48:09,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:09,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:10,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:10,116 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:10,116 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152415288] [2021-06-05 03:48:10,116 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152415288] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:10,116 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:10,116 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:10,116 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021950327] [2021-06-05 03:48:10,116 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:10,116 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:10,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:10,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:10,117 INFO L87 Difference]: Start difference. First operand 5221 states and 24725 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:10,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:10,228 INFO L93 Difference]: Finished difference Result 11138 states and 49699 transitions. [2021-06-05 03:48:10,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:10,229 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:10,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:10,255 INFO L225 Difference]: With dead ends: 11138 [2021-06-05 03:48:10,255 INFO L226 Difference]: Without dead ends: 10643 [2021-06-05 03:48:10,256 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 134.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:10,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10643 states. [2021-06-05 03:48:10,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10643 to 5141. [2021-06-05 03:48:10,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5141 states, 5140 states have (on average 4.746498054474708) internal successors, (24397), 5140 states have internal predecessors, (24397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:10,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5141 states to 5141 states and 24397 transitions. [2021-06-05 03:48:10,483 INFO L78 Accepts]: Start accepts. Automaton has 5141 states and 24397 transitions. Word has length 29 [2021-06-05 03:48:10,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:10,484 INFO L482 AbstractCegarLoop]: Abstraction has 5141 states and 24397 transitions. [2021-06-05 03:48:10,484 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:10,484 INFO L276 IsEmpty]: Start isEmpty. Operand 5141 states and 24397 transitions. [2021-06-05 03:48:10,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:10,492 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:10,492 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:10,492 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1104 [2021-06-05 03:48:10,492 INFO L430 AbstractCegarLoop]: === Iteration 1106 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:10,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:10,493 INFO L82 PathProgramCache]: Analyzing trace with hash 1807910885, now seen corresponding path program 1101 times [2021-06-05 03:48:10,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:10,493 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820471426] [2021-06-05 03:48:10,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:10,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:10,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:10,611 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:10,611 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820471426] [2021-06-05 03:48:10,611 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820471426] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:10,612 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:10,612 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:10,612 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472376305] [2021-06-05 03:48:10,612 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:10,612 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:10,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:10,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:10,612 INFO L87 Difference]: Start difference. First operand 5141 states and 24397 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:10,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:10,724 INFO L93 Difference]: Finished difference Result 11355 states and 50677 transitions. [2021-06-05 03:48:10,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:10,724 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:10,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:10,750 INFO L225 Difference]: With dead ends: 11355 [2021-06-05 03:48:10,750 INFO L226 Difference]: Without dead ends: 10813 [2021-06-05 03:48:10,750 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 126.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:10,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10813 states. [2021-06-05 03:48:10,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10813 to 5251. [2021-06-05 03:48:10,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5251 states, 5250 states have (on average 4.7241904761904765) internal successors, (24802), 5250 states have internal predecessors, (24802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:10,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5251 states to 5251 states and 24802 transitions. [2021-06-05 03:48:10,977 INFO L78 Accepts]: Start accepts. Automaton has 5251 states and 24802 transitions. Word has length 29 [2021-06-05 03:48:10,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:10,977 INFO L482 AbstractCegarLoop]: Abstraction has 5251 states and 24802 transitions. [2021-06-05 03:48:10,978 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:10,978 INFO L276 IsEmpty]: Start isEmpty. Operand 5251 states and 24802 transitions. [2021-06-05 03:48:10,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:10,986 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:10,986 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:10,986 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1105 [2021-06-05 03:48:10,986 INFO L430 AbstractCegarLoop]: === Iteration 1107 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:10,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:10,987 INFO L82 PathProgramCache]: Analyzing trace with hash -1168205979, now seen corresponding path program 1102 times [2021-06-05 03:48:10,987 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:10,987 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199970725] [2021-06-05 03:48:10,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:10,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:11,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:11,103 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:11,103 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199970725] [2021-06-05 03:48:11,103 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199970725] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:11,103 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:11,103 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:11,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112529043] [2021-06-05 03:48:11,103 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:11,103 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:11,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:11,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:11,104 INFO L87 Difference]: Start difference. First operand 5251 states and 24802 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:11,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:11,233 INFO L93 Difference]: Finished difference Result 11288 states and 50304 transitions. [2021-06-05 03:48:11,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:11,233 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:11,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:11,258 INFO L225 Difference]: With dead ends: 11288 [2021-06-05 03:48:11,259 INFO L226 Difference]: Without dead ends: 10703 [2021-06-05 03:48:11,259 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 140.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:11,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10703 states. [2021-06-05 03:48:11,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10703 to 5141. [2021-06-05 03:48:11,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5141 states, 5140 states have (on average 4.738715953307393) internal successors, (24357), 5140 states have internal predecessors, (24357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:11,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5141 states to 5141 states and 24357 transitions. [2021-06-05 03:48:11,483 INFO L78 Accepts]: Start accepts. Automaton has 5141 states and 24357 transitions. Word has length 29 [2021-06-05 03:48:11,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:11,484 INFO L482 AbstractCegarLoop]: Abstraction has 5141 states and 24357 transitions. [2021-06-05 03:48:11,484 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:11,484 INFO L276 IsEmpty]: Start isEmpty. Operand 5141 states and 24357 transitions. [2021-06-05 03:48:11,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:11,492 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:11,492 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:11,492 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1106 [2021-06-05 03:48:11,492 INFO L430 AbstractCegarLoop]: === Iteration 1108 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:11,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:11,492 INFO L82 PathProgramCache]: Analyzing trace with hash 214987591, now seen corresponding path program 1103 times [2021-06-05 03:48:11,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:11,492 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742295637] [2021-06-05 03:48:11,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:11,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:11,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:11,622 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:11,622 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742295637] [2021-06-05 03:48:11,622 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742295637] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:11,622 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:11,622 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:11,622 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877343630] [2021-06-05 03:48:11,622 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:11,623 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:11,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:11,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:11,623 INFO L87 Difference]: Start difference. First operand 5141 states and 24357 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:11,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:11,714 INFO L93 Difference]: Finished difference Result 11039 states and 49292 transitions. [2021-06-05 03:48:11,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:11,714 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:11,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:11,740 INFO L225 Difference]: With dead ends: 11039 [2021-06-05 03:48:11,740 INFO L226 Difference]: Without dead ends: 10624 [2021-06-05 03:48:11,740 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 137.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:11,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10624 states. [2021-06-05 03:48:11,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10624 to 5189. [2021-06-05 03:48:11,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5189 states, 5188 states have (on average 4.728797224363917) internal successors, (24533), 5188 states have internal predecessors, (24533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:11,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5189 states to 5189 states and 24533 transitions. [2021-06-05 03:48:11,965 INFO L78 Accepts]: Start accepts. Automaton has 5189 states and 24533 transitions. Word has length 29 [2021-06-05 03:48:11,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:11,965 INFO L482 AbstractCegarLoop]: Abstraction has 5189 states and 24533 transitions. [2021-06-05 03:48:11,966 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:11,966 INFO L276 IsEmpty]: Start isEmpty. Operand 5189 states and 24533 transitions. [2021-06-05 03:48:11,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:11,974 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:11,974 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:11,974 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1107 [2021-06-05 03:48:11,974 INFO L430 AbstractCegarLoop]: === Iteration 1109 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:11,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:11,974 INFO L82 PathProgramCache]: Analyzing trace with hash -631809371, now seen corresponding path program 1104 times [2021-06-05 03:48:11,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:11,975 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707138875] [2021-06-05 03:48:11,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:11,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:12,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:12,101 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:12,101 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707138875] [2021-06-05 03:48:12,101 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707138875] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:12,101 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:12,101 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:12,101 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324545340] [2021-06-05 03:48:12,101 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:12,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:12,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:12,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:12,102 INFO L87 Difference]: Start difference. First operand 5189 states and 24533 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:12,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:12,213 INFO L93 Difference]: Finished difference Result 11099 states and 49508 transitions. [2021-06-05 03:48:12,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:12,214 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:12,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:12,242 INFO L225 Difference]: With dead ends: 11099 [2021-06-05 03:48:12,242 INFO L226 Difference]: Without dead ends: 10520 [2021-06-05 03:48:12,243 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 150.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:12,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10520 states. [2021-06-05 03:48:12,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10520 to 5085. [2021-06-05 03:48:12,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5085 states, 5084 states have (on average 4.755507474429583) internal successors, (24177), 5084 states have internal predecessors, (24177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:12,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5085 states to 5085 states and 24177 transitions. [2021-06-05 03:48:12,473 INFO L78 Accepts]: Start accepts. Automaton has 5085 states and 24177 transitions. Word has length 29 [2021-06-05 03:48:12,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:12,473 INFO L482 AbstractCegarLoop]: Abstraction has 5085 states and 24177 transitions. [2021-06-05 03:48:12,473 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:12,473 INFO L276 IsEmpty]: Start isEmpty. Operand 5085 states and 24177 transitions. [2021-06-05 03:48:12,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:12,481 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:12,481 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:12,481 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1108 [2021-06-05 03:48:12,481 INFO L430 AbstractCegarLoop]: === Iteration 1110 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:12,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:12,482 INFO L82 PathProgramCache]: Analyzing trace with hash -1150082583, now seen corresponding path program 1105 times [2021-06-05 03:48:12,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:12,482 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648546057] [2021-06-05 03:48:12,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:12,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:12,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:12,605 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:12,605 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648546057] [2021-06-05 03:48:12,605 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648546057] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:12,605 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:12,605 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:12,605 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684327766] [2021-06-05 03:48:12,605 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:12,605 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:12,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:12,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:12,605 INFO L87 Difference]: Start difference. First operand 5085 states and 24177 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:12,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:12,715 INFO L93 Difference]: Finished difference Result 10974 states and 49053 transitions. [2021-06-05 03:48:12,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:12,715 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:12,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:12,743 INFO L225 Difference]: With dead ends: 10974 [2021-06-05 03:48:12,743 INFO L226 Difference]: Without dead ends: 10559 [2021-06-05 03:48:12,743 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 147.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:12,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10559 states. [2021-06-05 03:48:12,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10559 to 5213. [2021-06-05 03:48:12,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5213 states, 5212 states have (on average 4.747697620874904) internal successors, (24745), 5212 states have internal predecessors, (24745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:12,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5213 states to 5213 states and 24745 transitions. [2021-06-05 03:48:12,970 INFO L78 Accepts]: Start accepts. Automaton has 5213 states and 24745 transitions. Word has length 29 [2021-06-05 03:48:12,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:12,971 INFO L482 AbstractCegarLoop]: Abstraction has 5213 states and 24745 transitions. [2021-06-05 03:48:12,971 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:12,971 INFO L276 IsEmpty]: Start isEmpty. Operand 5213 states and 24745 transitions. [2021-06-05 03:48:12,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:12,979 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:12,979 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:12,979 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1109 [2021-06-05 03:48:12,979 INFO L430 AbstractCegarLoop]: === Iteration 1111 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:12,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:12,979 INFO L82 PathProgramCache]: Analyzing trace with hash 604738025, now seen corresponding path program 1106 times [2021-06-05 03:48:12,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:12,980 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764853335] [2021-06-05 03:48:12,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:12,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:13,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:13,103 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:13,104 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764853335] [2021-06-05 03:48:13,104 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764853335] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:13,104 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:13,104 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:13,104 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945371394] [2021-06-05 03:48:13,104 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:13,104 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:13,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:13,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:13,104 INFO L87 Difference]: Start difference. First operand 5213 states and 24745 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:13,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:13,198 INFO L93 Difference]: Finished difference Result 11101 states and 49532 transitions. [2021-06-05 03:48:13,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:13,199 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:13,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:13,224 INFO L225 Difference]: With dead ends: 11101 [2021-06-05 03:48:13,224 INFO L226 Difference]: Without dead ends: 10479 [2021-06-05 03:48:13,224 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 131.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:13,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10479 states. [2021-06-05 03:48:13,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10479 to 5133. [2021-06-05 03:48:13,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5133 states, 5132 states have (on average 4.7531176929072485) internal successors, (24393), 5132 states have internal predecessors, (24393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:13,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5133 states to 5133 states and 24393 transitions. [2021-06-05 03:48:13,451 INFO L78 Accepts]: Start accepts. Automaton has 5133 states and 24393 transitions. Word has length 29 [2021-06-05 03:48:13,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:13,451 INFO L482 AbstractCegarLoop]: Abstraction has 5133 states and 24393 transitions. [2021-06-05 03:48:13,451 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:13,451 INFO L276 IsEmpty]: Start isEmpty. Operand 5133 states and 24393 transitions. [2021-06-05 03:48:13,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:13,459 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:13,459 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:13,460 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1110 [2021-06-05 03:48:13,460 INFO L430 AbstractCegarLoop]: === Iteration 1112 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:13,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:13,460 INFO L82 PathProgramCache]: Analyzing trace with hash -1065294585, now seen corresponding path program 1107 times [2021-06-05 03:48:13,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:13,460 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494480138] [2021-06-05 03:48:13,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:13,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:13,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:13,576 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:13,576 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494480138] [2021-06-05 03:48:13,576 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494480138] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:13,576 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:13,576 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:13,576 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730046904] [2021-06-05 03:48:13,577 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:13,577 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:13,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:13,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:13,577 INFO L87 Difference]: Start difference. First operand 5133 states and 24393 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:13,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:13,690 INFO L93 Difference]: Finished difference Result 10799 states and 48270 transitions. [2021-06-05 03:48:13,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:13,690 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:13,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:13,716 INFO L225 Difference]: With dead ends: 10799 [2021-06-05 03:48:13,716 INFO L226 Difference]: Without dead ends: 10384 [2021-06-05 03:48:13,716 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 140.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:13,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10384 states. [2021-06-05 03:48:13,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10384 to 5165. [2021-06-05 03:48:13,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5165 states, 5164 states have (on average 4.745352439969016) internal successors, (24505), 5164 states have internal predecessors, (24505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:13,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5165 states to 5165 states and 24505 transitions. [2021-06-05 03:48:13,945 INFO L78 Accepts]: Start accepts. Automaton has 5165 states and 24505 transitions. Word has length 29 [2021-06-05 03:48:13,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:13,945 INFO L482 AbstractCegarLoop]: Abstraction has 5165 states and 24505 transitions. [2021-06-05 03:48:13,945 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:13,945 INFO L276 IsEmpty]: Start isEmpty. Operand 5165 states and 24505 transitions. [2021-06-05 03:48:13,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:13,954 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:13,954 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:13,954 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1111 [2021-06-05 03:48:13,954 INFO L430 AbstractCegarLoop]: === Iteration 1113 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:13,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:13,954 INFO L82 PathProgramCache]: Analyzing trace with hash 827551717, now seen corresponding path program 1108 times [2021-06-05 03:48:13,954 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:13,954 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123460798] [2021-06-05 03:48:13,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:13,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:14,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:14,071 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:14,072 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123460798] [2021-06-05 03:48:14,072 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123460798] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:14,072 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:14,072 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:14,072 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633834895] [2021-06-05 03:48:14,072 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:14,072 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:14,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:14,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:14,072 INFO L87 Difference]: Start difference. First operand 5165 states and 24505 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:14,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:14,178 INFO L93 Difference]: Finished difference Result 10799 states and 48238 transitions. [2021-06-05 03:48:14,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:14,178 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:14,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:14,204 INFO L225 Difference]: With dead ends: 10799 [2021-06-05 03:48:14,204 INFO L226 Difference]: Without dead ends: 10352 [2021-06-05 03:48:14,205 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 125.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:14,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10352 states. [2021-06-05 03:48:14,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10352 to 5133. [2021-06-05 03:48:14,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5133 states, 5132 states have (on average 4.75) internal successors, (24377), 5132 states have internal predecessors, (24377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:14,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5133 states to 5133 states and 24377 transitions. [2021-06-05 03:48:14,430 INFO L78 Accepts]: Start accepts. Automaton has 5133 states and 24377 transitions. Word has length 29 [2021-06-05 03:48:14,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:14,430 INFO L482 AbstractCegarLoop]: Abstraction has 5133 states and 24377 transitions. [2021-06-05 03:48:14,430 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:14,430 INFO L276 IsEmpty]: Start isEmpty. Operand 5133 states and 24377 transitions. [2021-06-05 03:48:14,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:14,439 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:14,439 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:14,439 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1112 [2021-06-05 03:48:14,439 INFO L430 AbstractCegarLoop]: === Iteration 1114 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:14,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:14,439 INFO L82 PathProgramCache]: Analyzing trace with hash 1549155267, now seen corresponding path program 1109 times [2021-06-05 03:48:14,439 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:14,439 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404507231] [2021-06-05 03:48:14,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:14,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:14,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:14,565 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:14,565 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404507231] [2021-06-05 03:48:14,565 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404507231] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:14,565 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:14,565 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:14,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773505526] [2021-06-05 03:48:14,565 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:14,565 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:14,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:14,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:14,565 INFO L87 Difference]: Start difference. First operand 5133 states and 24377 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:14,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:14,660 INFO L93 Difference]: Finished difference Result 11101 states and 49532 transitions. [2021-06-05 03:48:14,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:14,660 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:14,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:14,687 INFO L225 Difference]: With dead ends: 11101 [2021-06-05 03:48:14,687 INFO L226 Difference]: Without dead ends: 10559 [2021-06-05 03:48:14,687 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 133.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:14,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10559 states. [2021-06-05 03:48:14,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10559 to 5213. [2021-06-05 03:48:14,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5213 states, 5212 states have (on average 4.732348426707598) internal successors, (24665), 5212 states have internal predecessors, (24665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:14,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5213 states to 5213 states and 24665 transitions. [2021-06-05 03:48:14,918 INFO L78 Accepts]: Start accepts. Automaton has 5213 states and 24665 transitions. Word has length 29 [2021-06-05 03:48:14,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:14,918 INFO L482 AbstractCegarLoop]: Abstraction has 5213 states and 24665 transitions. [2021-06-05 03:48:14,918 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:14,918 INFO L276 IsEmpty]: Start isEmpty. Operand 5213 states and 24665 transitions. [2021-06-05 03:48:14,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:14,927 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:14,927 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:14,927 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1113 [2021-06-05 03:48:14,927 INFO L430 AbstractCegarLoop]: === Iteration 1115 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:14,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:14,927 INFO L82 PathProgramCache]: Analyzing trace with hash 1342347301, now seen corresponding path program 1110 times [2021-06-05 03:48:14,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:14,928 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612275759] [2021-06-05 03:48:14,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:14,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:15,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:15,055 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:15,055 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612275759] [2021-06-05 03:48:15,055 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612275759] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:15,055 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:15,055 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:15,055 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069847490] [2021-06-05 03:48:15,055 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:15,055 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:15,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:15,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:15,056 INFO L87 Difference]: Start difference. First operand 5213 states and 24665 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:15,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:15,153 INFO L93 Difference]: Finished difference Result 10974 states and 48925 transitions. [2021-06-05 03:48:15,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:15,153 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:15,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:15,179 INFO L225 Difference]: With dead ends: 10974 [2021-06-05 03:48:15,179 INFO L226 Difference]: Without dead ends: 10447 [2021-06-05 03:48:15,179 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 134.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:15,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10447 states. [2021-06-05 03:48:15,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10447 to 5101. [2021-06-05 03:48:15,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5101 states, 5100 states have (on average 4.754705882352941) internal successors, (24249), 5100 states have internal predecessors, (24249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:15,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5101 states to 5101 states and 24249 transitions. [2021-06-05 03:48:15,406 INFO L78 Accepts]: Start accepts. Automaton has 5101 states and 24249 transitions. Word has length 29 [2021-06-05 03:48:15,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:15,406 INFO L482 AbstractCegarLoop]: Abstraction has 5101 states and 24249 transitions. [2021-06-05 03:48:15,406 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:15,406 INFO L276 IsEmpty]: Start isEmpty. Operand 5101 states and 24249 transitions. [2021-06-05 03:48:15,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:15,415 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:15,415 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:15,415 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1114 [2021-06-05 03:48:15,415 INFO L430 AbstractCegarLoop]: === Iteration 1116 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:15,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:15,415 INFO L82 PathProgramCache]: Analyzing trace with hash -1686779415, now seen corresponding path program 1111 times [2021-06-05 03:48:15,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:15,415 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971443855] [2021-06-05 03:48:15,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:15,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:15,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:15,540 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:15,540 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971443855] [2021-06-05 03:48:15,540 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971443855] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:15,540 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:15,540 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:15,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075210630] [2021-06-05 03:48:15,541 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:15,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:15,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:15,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:15,541 INFO L87 Difference]: Start difference. First operand 5101 states and 24249 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:15,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:15,655 INFO L93 Difference]: Finished difference Result 10990 states and 49141 transitions. [2021-06-05 03:48:15,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:15,655 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:15,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:15,682 INFO L225 Difference]: With dead ends: 10990 [2021-06-05 03:48:15,682 INFO L226 Difference]: Without dead ends: 10575 [2021-06-05 03:48:15,682 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 149.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:15,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10575 states. [2021-06-05 03:48:15,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10575 to 5221. [2021-06-05 03:48:15,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5221 states, 5220 states have (on average 4.745785440613027) internal successors, (24773), 5220 states have internal predecessors, (24773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:15,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5221 states to 5221 states and 24773 transitions. [2021-06-05 03:48:15,913 INFO L78 Accepts]: Start accepts. Automaton has 5221 states and 24773 transitions. Word has length 29 [2021-06-05 03:48:15,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:15,914 INFO L482 AbstractCegarLoop]: Abstraction has 5221 states and 24773 transitions. [2021-06-05 03:48:15,914 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:15,914 INFO L276 IsEmpty]: Start isEmpty. Operand 5221 states and 24773 transitions. [2021-06-05 03:48:15,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:15,922 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:15,922 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:15,922 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1115 [2021-06-05 03:48:15,922 INFO L430 AbstractCegarLoop]: === Iteration 1117 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:15,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:15,923 INFO L82 PathProgramCache]: Analyzing trace with hash 68041193, now seen corresponding path program 1112 times [2021-06-05 03:48:15,923 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:15,923 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70268446] [2021-06-05 03:48:15,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:15,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:16,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:16,051 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:16,051 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70268446] [2021-06-05 03:48:16,051 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70268446] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:16,051 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:16,051 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:16,051 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111003191] [2021-06-05 03:48:16,051 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:16,051 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:16,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:16,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:16,051 INFO L87 Difference]: Start difference. First operand 5221 states and 24773 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:16,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:16,151 INFO L93 Difference]: Finished difference Result 11117 states and 49620 transitions. [2021-06-05 03:48:16,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:16,152 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:16,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:16,178 INFO L225 Difference]: With dead ends: 11117 [2021-06-05 03:48:16,178 INFO L226 Difference]: Without dead ends: 10495 [2021-06-05 03:48:16,179 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 136.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:16,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10495 states. [2021-06-05 03:48:16,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10495 to 5141. [2021-06-05 03:48:16,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5141 states, 5140 states have (on average 4.749610894941634) internal successors, (24413), 5140 states have internal predecessors, (24413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:16,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5141 states to 5141 states and 24413 transitions. [2021-06-05 03:48:16,407 INFO L78 Accepts]: Start accepts. Automaton has 5141 states and 24413 transitions. Word has length 29 [2021-06-05 03:48:16,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:16,407 INFO L482 AbstractCegarLoop]: Abstraction has 5141 states and 24413 transitions. [2021-06-05 03:48:16,407 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:16,408 INFO L276 IsEmpty]: Start isEmpty. Operand 5141 states and 24413 transitions. [2021-06-05 03:48:16,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:16,416 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:16,416 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:16,416 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1116 [2021-06-05 03:48:16,416 INFO L430 AbstractCegarLoop]: === Iteration 1118 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:16,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:16,416 INFO L82 PathProgramCache]: Analyzing trace with hash 2009460009, now seen corresponding path program 1113 times [2021-06-05 03:48:16,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:16,417 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037647821] [2021-06-05 03:48:16,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:16,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:16,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:16,534 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:16,534 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037647821] [2021-06-05 03:48:16,534 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037647821] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:16,534 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:16,534 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:16,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718393005] [2021-06-05 03:48:16,534 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:16,534 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:16,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:16,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:16,535 INFO L87 Difference]: Start difference. First operand 5141 states and 24413 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:16,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:16,664 INFO L93 Difference]: Finished difference Result 10783 states and 48254 transitions. [2021-06-05 03:48:16,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:16,664 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:16,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:16,690 INFO L225 Difference]: With dead ends: 10783 [2021-06-05 03:48:16,690 INFO L226 Difference]: Without dead ends: 10368 [2021-06-05 03:48:16,691 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 142.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:16,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10368 states. [2021-06-05 03:48:16,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10368 to 5189. [2021-06-05 03:48:16,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5189 states, 5188 states have (on average 4.739591364687741) internal successors, (24589), 5188 states have internal predecessors, (24589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:16,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5189 states to 5189 states and 24589 transitions. [2021-06-05 03:48:16,920 INFO L78 Accepts]: Start accepts. Automaton has 5189 states and 24589 transitions. Word has length 29 [2021-06-05 03:48:16,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:16,920 INFO L482 AbstractCegarLoop]: Abstraction has 5189 states and 24589 transitions. [2021-06-05 03:48:16,920 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:16,920 INFO L276 IsEmpty]: Start isEmpty. Operand 5189 states and 24589 transitions. [2021-06-05 03:48:16,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:16,929 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:16,929 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:16,929 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1117 [2021-06-05 03:48:16,929 INFO L430 AbstractCegarLoop]: === Iteration 1119 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:16,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:16,929 INFO L82 PathProgramCache]: Analyzing trace with hash 263435211, now seen corresponding path program 1114 times [2021-06-05 03:48:16,929 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:16,929 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367217947] [2021-06-05 03:48:16,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:16,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:17,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:17,046 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:17,046 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367217947] [2021-06-05 03:48:17,046 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367217947] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:17,046 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:17,046 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:17,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265106569] [2021-06-05 03:48:17,046 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:17,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:17,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:17,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:17,047 INFO L87 Difference]: Start difference. First operand 5189 states and 24589 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:17,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:17,168 INFO L93 Difference]: Finished difference Result 10511 states and 47245 transitions. [2021-06-05 03:48:17,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:17,168 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:17,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:17,194 INFO L225 Difference]: With dead ends: 10511 [2021-06-05 03:48:17,194 INFO L226 Difference]: Without dead ends: 10000 [2021-06-05 03:48:17,194 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 141.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:17,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10000 states. [2021-06-05 03:48:17,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10000 to 5141. [2021-06-05 03:48:17,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5141 states, 5140 states have (on average 4.744941634241245) internal successors, (24389), 5140 states have internal predecessors, (24389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:17,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5141 states to 5141 states and 24389 transitions. [2021-06-05 03:48:17,419 INFO L78 Accepts]: Start accepts. Automaton has 5141 states and 24389 transitions. Word has length 29 [2021-06-05 03:48:17,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:17,419 INFO L482 AbstractCegarLoop]: Abstraction has 5141 states and 24389 transitions. [2021-06-05 03:48:17,419 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:17,419 INFO L276 IsEmpty]: Start isEmpty. Operand 5141 states and 24389 transitions. [2021-06-05 03:48:17,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:17,428 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:17,428 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:17,428 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1118 [2021-06-05 03:48:17,428 INFO L430 AbstractCegarLoop]: === Iteration 1120 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:17,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:17,428 INFO L82 PathProgramCache]: Analyzing trace with hash -342133813, now seen corresponding path program 1115 times [2021-06-05 03:48:17,428 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:17,428 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858693242] [2021-06-05 03:48:17,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:17,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:17,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:17,556 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:17,556 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858693242] [2021-06-05 03:48:17,556 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858693242] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:17,556 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:17,556 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:17,556 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159131414] [2021-06-05 03:48:17,556 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:17,556 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:17,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:17,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:17,556 INFO L87 Difference]: Start difference. First operand 5141 states and 24389 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:17,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:17,649 INFO L93 Difference]: Finished difference Result 10966 states and 49025 transitions. [2021-06-05 03:48:17,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:17,649 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:17,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:17,675 INFO L225 Difference]: With dead ends: 10966 [2021-06-05 03:48:17,675 INFO L226 Difference]: Without dead ends: 10424 [2021-06-05 03:48:17,675 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 135.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:17,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10424 states. [2021-06-05 03:48:17,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10424 to 5245. [2021-06-05 03:48:17,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5245 states, 5244 states have (on average 4.724828375286041) internal successors, (24777), 5244 states have internal predecessors, (24777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:17,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5245 states to 5245 states and 24777 transitions. [2021-06-05 03:48:17,904 INFO L78 Accepts]: Start accepts. Automaton has 5245 states and 24777 transitions. Word has length 29 [2021-06-05 03:48:17,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:17,904 INFO L482 AbstractCegarLoop]: Abstraction has 5245 states and 24777 transitions. [2021-06-05 03:48:17,904 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:17,904 INFO L276 IsEmpty]: Start isEmpty. Operand 5245 states and 24777 transitions. [2021-06-05 03:48:17,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:17,913 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:17,913 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:17,913 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1119 [2021-06-05 03:48:17,913 INFO L430 AbstractCegarLoop]: === Iteration 1121 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:17,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:17,913 INFO L82 PathProgramCache]: Analyzing trace with hash 219298985, now seen corresponding path program 1116 times [2021-06-05 03:48:17,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:17,913 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713662707] [2021-06-05 03:48:17,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:17,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:18,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:18,040 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:18,040 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713662707] [2021-06-05 03:48:18,040 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713662707] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:18,040 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:18,040 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:18,040 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87544695] [2021-06-05 03:48:18,041 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:18,041 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:18,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:18,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:18,041 INFO L87 Difference]: Start difference. First operand 5245 states and 24777 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:18,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:18,152 INFO L93 Difference]: Finished difference Result 10567 states and 47433 transitions. [2021-06-05 03:48:18,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:18,152 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:18,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:18,177 INFO L225 Difference]: With dead ends: 10567 [2021-06-05 03:48:18,178 INFO L226 Difference]: Without dead ends: 9960 [2021-06-05 03:48:18,178 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 152.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:18,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9960 states. [2021-06-05 03:48:18,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9960 to 5101. [2021-06-05 03:48:18,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5101 states, 5100 states have (on average 4.751568627450981) internal successors, (24233), 5100 states have internal predecessors, (24233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:18,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5101 states to 5101 states and 24233 transitions. [2021-06-05 03:48:18,399 INFO L78 Accepts]: Start accepts. Automaton has 5101 states and 24233 transitions. Word has length 29 [2021-06-05 03:48:18,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:18,399 INFO L482 AbstractCegarLoop]: Abstraction has 5101 states and 24233 transitions. [2021-06-05 03:48:18,399 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:18,399 INFO L276 IsEmpty]: Start isEmpty. Operand 5101 states and 24233 transitions. [2021-06-05 03:48:18,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:18,408 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:18,408 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:18,408 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1120 [2021-06-05 03:48:18,408 INFO L430 AbstractCegarLoop]: === Iteration 1122 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:18,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:18,409 INFO L82 PathProgramCache]: Analyzing trace with hash -816566073, now seen corresponding path program 1117 times [2021-06-05 03:48:18,409 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:18,409 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725234745] [2021-06-05 03:48:18,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:18,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:18,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:18,525 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:18,526 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725234745] [2021-06-05 03:48:18,526 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725234745] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:18,526 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:18,526 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:18,526 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952548835] [2021-06-05 03:48:18,526 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:18,526 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:18,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:18,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:18,526 INFO L87 Difference]: Start difference. First operand 5101 states and 24233 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:18,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:18,638 INFO L93 Difference]: Finished difference Result 10608 states and 47455 transitions. [2021-06-05 03:48:18,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:18,638 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:18,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:18,714 INFO L225 Difference]: With dead ends: 10608 [2021-06-05 03:48:18,714 INFO L226 Difference]: Without dead ends: 10193 [2021-06-05 03:48:18,714 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 141.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:18,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10193 states. [2021-06-05 03:48:18,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10193 to 5149. [2021-06-05 03:48:18,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5149 states, 5148 states have (on average 4.744560994560994) internal successors, (24425), 5148 states have internal predecessors, (24425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:18,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5149 states to 5149 states and 24425 transitions. [2021-06-05 03:48:18,920 INFO L78 Accepts]: Start accepts. Automaton has 5149 states and 24425 transitions. Word has length 29 [2021-06-05 03:48:18,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:18,920 INFO L482 AbstractCegarLoop]: Abstraction has 5149 states and 24425 transitions. [2021-06-05 03:48:18,920 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:18,920 INFO L276 IsEmpty]: Start isEmpty. Operand 5149 states and 24425 transitions. [2021-06-05 03:48:18,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:18,928 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:18,928 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:18,928 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1121 [2021-06-05 03:48:18,928 INFO L430 AbstractCegarLoop]: === Iteration 1123 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:18,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:18,929 INFO L82 PathProgramCache]: Analyzing trace with hash 1076280229, now seen corresponding path program 1118 times [2021-06-05 03:48:18,929 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:18,929 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898603870] [2021-06-05 03:48:18,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:18,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:19,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:19,037 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:19,037 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898603870] [2021-06-05 03:48:19,038 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898603870] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:19,038 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:19,038 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:19,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392566606] [2021-06-05 03:48:19,038 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:19,038 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:19,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:19,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:19,038 INFO L87 Difference]: Start difference. First operand 5149 states and 24425 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:19,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:19,140 INFO L93 Difference]: Finished difference Result 10608 states and 47423 transitions. [2021-06-05 03:48:19,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:19,140 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:19,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:19,165 INFO L225 Difference]: With dead ends: 10608 [2021-06-05 03:48:19,165 INFO L226 Difference]: Without dead ends: 10161 [2021-06-05 03:48:19,166 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 115.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:19,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10161 states. [2021-06-05 03:48:19,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10161 to 5117. [2021-06-05 03:48:19,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.749218139171227) internal successors, (24297), 5116 states have internal predecessors, (24297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:19,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24297 transitions. [2021-06-05 03:48:19,385 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24297 transitions. Word has length 29 [2021-06-05 03:48:19,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:19,385 INFO L482 AbstractCegarLoop]: Abstraction has 5117 states and 24297 transitions. [2021-06-05 03:48:19,385 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:19,385 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24297 transitions. [2021-06-05 03:48:19,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:19,393 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:19,393 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:19,394 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1122 [2021-06-05 03:48:19,394 INFO L430 AbstractCegarLoop]: === Iteration 1124 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:19,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:19,394 INFO L82 PathProgramCache]: Analyzing trace with hash 1611383849, now seen corresponding path program 1119 times [2021-06-05 03:48:19,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:19,394 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121694967] [2021-06-05 03:48:19,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:19,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:19,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:19,501 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:19,501 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121694967] [2021-06-05 03:48:19,501 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121694967] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:19,501 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:19,501 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:19,501 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137032233] [2021-06-05 03:48:19,501 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:19,501 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:19,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:19,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:19,502 INFO L87 Difference]: Start difference. First operand 5117 states and 24297 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:19,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:19,615 INFO L93 Difference]: Finished difference Result 10576 states and 47343 transitions. [2021-06-05 03:48:19,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:19,615 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:19,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:19,640 INFO L225 Difference]: With dead ends: 10576 [2021-06-05 03:48:19,640 INFO L226 Difference]: Without dead ends: 10161 [2021-06-05 03:48:19,640 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 132.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:19,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10161 states. [2021-06-05 03:48:19,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10161 to 5165. [2021-06-05 03:48:19,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5165 states, 5164 states have (on average 4.739155693261038) internal successors, (24473), 5164 states have internal predecessors, (24473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:19,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5165 states to 5165 states and 24473 transitions. [2021-06-05 03:48:19,859 INFO L78 Accepts]: Start accepts. Automaton has 5165 states and 24473 transitions. Word has length 29 [2021-06-05 03:48:19,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:19,859 INFO L482 AbstractCegarLoop]: Abstraction has 5165 states and 24473 transitions. [2021-06-05 03:48:19,859 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:19,859 INFO L276 IsEmpty]: Start isEmpty. Operand 5165 states and 24473 transitions. [2021-06-05 03:48:19,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:19,868 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:19,868 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:19,868 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1123 [2021-06-05 03:48:19,868 INFO L430 AbstractCegarLoop]: === Iteration 1125 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:19,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:19,868 INFO L82 PathProgramCache]: Analyzing trace with hash 140322665, now seen corresponding path program 1120 times [2021-06-05 03:48:19,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:19,868 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903221363] [2021-06-05 03:48:19,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:19,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:19,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:19,976 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:19,977 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903221363] [2021-06-05 03:48:19,977 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903221363] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:19,977 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:19,977 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:19,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220256965] [2021-06-05 03:48:19,977 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:19,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:19,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:19,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:19,977 INFO L87 Difference]: Start difference. First operand 5165 states and 24473 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:20,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:20,095 INFO L93 Difference]: Finished difference Result 10304 states and 46334 transitions. [2021-06-05 03:48:20,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:20,096 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:20,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:20,120 INFO L225 Difference]: With dead ends: 10304 [2021-06-05 03:48:20,120 INFO L226 Difference]: Without dead ends: 9793 [2021-06-05 03:48:20,121 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 132.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:20,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9793 states. [2021-06-05 03:48:20,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9793 to 5117. [2021-06-05 03:48:20,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.746090695856138) internal successors, (24281), 5116 states have internal predecessors, (24281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:20,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24281 transitions. [2021-06-05 03:48:20,337 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24281 transitions. Word has length 29 [2021-06-05 03:48:20,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:20,338 INFO L482 AbstractCegarLoop]: Abstraction has 5117 states and 24281 transitions. [2021-06-05 03:48:20,338 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:20,338 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24281 transitions. [2021-06-05 03:48:20,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:20,346 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:20,346 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:20,346 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1124 [2021-06-05 03:48:20,346 INFO L430 AbstractCegarLoop]: === Iteration 1126 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:20,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:20,346 INFO L82 PathProgramCache]: Analyzing trace with hash 1315870757, now seen corresponding path program 1121 times [2021-06-05 03:48:20,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:20,347 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882125534] [2021-06-05 03:48:20,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:20,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:20,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:20,457 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:20,457 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882125534] [2021-06-05 03:48:20,457 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882125534] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:20,457 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:20,457 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:20,457 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395616233] [2021-06-05 03:48:20,457 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:20,457 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:20,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:20,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:20,458 INFO L87 Difference]: Start difference. First operand 5117 states and 24281 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:20,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:20,557 INFO L93 Difference]: Finished difference Result 10576 states and 47327 transitions. [2021-06-05 03:48:20,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:20,557 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:20,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:20,582 INFO L225 Difference]: With dead ends: 10576 [2021-06-05 03:48:20,582 INFO L226 Difference]: Without dead ends: 10161 [2021-06-05 03:48:20,583 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 118.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:20,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10161 states. [2021-06-05 03:48:20,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10161 to 5165. [2021-06-05 03:48:20,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5165 states, 5164 states have (on average 4.736057319907049) internal successors, (24457), 5164 states have internal predecessors, (24457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:20,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5165 states to 5165 states and 24457 transitions. [2021-06-05 03:48:20,804 INFO L78 Accepts]: Start accepts. Automaton has 5165 states and 24457 transitions. Word has length 29 [2021-06-05 03:48:20,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:20,804 INFO L482 AbstractCegarLoop]: Abstraction has 5165 states and 24457 transitions. [2021-06-05 03:48:20,804 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:20,804 INFO L276 IsEmpty]: Start isEmpty. Operand 5165 states and 24457 transitions. [2021-06-05 03:48:20,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:20,813 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:20,813 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:20,813 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1125 [2021-06-05 03:48:20,813 INFO L430 AbstractCegarLoop]: === Iteration 1127 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:20,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:20,813 INFO L82 PathProgramCache]: Analyzing trace with hash -178807801, now seen corresponding path program 1122 times [2021-06-05 03:48:20,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:20,813 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528665485] [2021-06-05 03:48:20,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:20,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:20,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:20,922 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:20,922 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528665485] [2021-06-05 03:48:20,922 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528665485] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:20,922 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:20,922 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:20,922 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597798005] [2021-06-05 03:48:20,922 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:20,922 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:20,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:20,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:20,923 INFO L87 Difference]: Start difference. First operand 5165 states and 24457 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:21,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:21,033 INFO L93 Difference]: Finished difference Result 10304 states and 46318 transitions. [2021-06-05 03:48:21,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:21,034 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:21,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:21,058 INFO L225 Difference]: With dead ends: 10304 [2021-06-05 03:48:21,059 INFO L226 Difference]: Without dead ends: 9777 [2021-06-05 03:48:21,059 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 132.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:21,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9777 states. [2021-06-05 03:48:21,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9777 to 5101. [2021-06-05 03:48:21,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5101 states, 5100 states have (on average 4.75) internal successors, (24225), 5100 states have internal predecessors, (24225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:21,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5101 states to 5101 states and 24225 transitions. [2021-06-05 03:48:21,276 INFO L78 Accepts]: Start accepts. Automaton has 5101 states and 24225 transitions. Word has length 29 [2021-06-05 03:48:21,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:21,276 INFO L482 AbstractCegarLoop]: Abstraction has 5101 states and 24225 transitions. [2021-06-05 03:48:21,276 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:21,276 INFO L276 IsEmpty]: Start isEmpty. Operand 5101 states and 24225 transitions. [2021-06-05 03:48:21,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:21,285 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:21,285 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:21,285 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1126 [2021-06-05 03:48:21,285 INFO L430 AbstractCegarLoop]: === Iteration 1128 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:21,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:21,285 INFO L82 PathProgramCache]: Analyzing trace with hash 1857590403, now seen corresponding path program 1123 times [2021-06-05 03:48:21,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:21,285 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657056225] [2021-06-05 03:48:21,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:21,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:21,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:21,409 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:21,409 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657056225] [2021-06-05 03:48:21,409 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657056225] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:21,409 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:21,409 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:21,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544677133] [2021-06-05 03:48:21,409 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:21,409 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:21,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:21,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:21,410 INFO L87 Difference]: Start difference. First operand 5101 states and 24225 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:21,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:21,508 INFO L93 Difference]: Finished difference Result 11117 states and 49644 transitions. [2021-06-05 03:48:21,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:21,509 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:21,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:21,534 INFO L225 Difference]: With dead ends: 11117 [2021-06-05 03:48:21,535 INFO L226 Difference]: Without dead ends: 10575 [2021-06-05 03:48:21,535 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 131.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:21,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10575 states. [2021-06-05 03:48:21,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10575 to 5221. [2021-06-05 03:48:21,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5221 states, 5220 states have (on average 4.735057471264367) internal successors, (24717), 5220 states have internal predecessors, (24717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:21,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5221 states to 5221 states and 24717 transitions. [2021-06-05 03:48:21,761 INFO L78 Accepts]: Start accepts. Automaton has 5221 states and 24717 transitions. Word has length 29 [2021-06-05 03:48:21,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:21,761 INFO L482 AbstractCegarLoop]: Abstraction has 5221 states and 24717 transitions. [2021-06-05 03:48:21,761 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:21,761 INFO L276 IsEmpty]: Start isEmpty. Operand 5221 states and 24717 transitions. [2021-06-05 03:48:21,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:21,770 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:21,770 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:21,770 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1127 [2021-06-05 03:48:21,770 INFO L430 AbstractCegarLoop]: === Iteration 1129 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:21,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:21,770 INFO L82 PathProgramCache]: Analyzing trace with hash 1650782437, now seen corresponding path program 1124 times [2021-06-05 03:48:21,770 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:21,770 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882889410] [2021-06-05 03:48:21,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:21,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:21,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:21,895 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:21,895 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882889410] [2021-06-05 03:48:21,895 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882889410] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:21,895 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:21,895 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:21,895 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516997567] [2021-06-05 03:48:21,895 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:21,895 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:21,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:21,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:21,895 INFO L87 Difference]: Start difference. First operand 5221 states and 24717 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:21,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:21,994 INFO L93 Difference]: Finished difference Result 10990 states and 49037 transitions. [2021-06-05 03:48:21,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:21,995 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:21,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:22,021 INFO L225 Difference]: With dead ends: 10990 [2021-06-05 03:48:22,021 INFO L226 Difference]: Without dead ends: 10495 [2021-06-05 03:48:22,021 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 131.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:22,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10495 states. [2021-06-05 03:48:22,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10495 to 5141. [2021-06-05 03:48:22,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5141 states, 5140 states have (on average 4.744941634241245) internal successors, (24389), 5140 states have internal predecessors, (24389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:22,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5141 states to 5141 states and 24389 transitions. [2021-06-05 03:48:22,253 INFO L78 Accepts]: Start accepts. Automaton has 5141 states and 24389 transitions. Word has length 29 [2021-06-05 03:48:22,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:22,253 INFO L482 AbstractCegarLoop]: Abstraction has 5141 states and 24389 transitions. [2021-06-05 03:48:22,253 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:22,253 INFO L276 IsEmpty]: Start isEmpty. Operand 5141 states and 24389 transitions. [2021-06-05 03:48:22,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:22,262 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:22,262 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:22,262 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1128 [2021-06-05 03:48:22,262 INFO L430 AbstractCegarLoop]: === Iteration 1130 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:22,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:22,262 INFO L82 PathProgramCache]: Analyzing trace with hash -9426971, now seen corresponding path program 1125 times [2021-06-05 03:48:22,262 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:22,262 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434861308] [2021-06-05 03:48:22,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:22,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:22,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:22,390 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:22,390 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434861308] [2021-06-05 03:48:22,390 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434861308] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:22,390 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:22,390 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:22,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137096313] [2021-06-05 03:48:22,390 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:22,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:22,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:22,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:22,391 INFO L87 Difference]: Start difference. First operand 5141 states and 24389 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:22,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:22,507 INFO L93 Difference]: Finished difference Result 10966 states and 49025 transitions. [2021-06-05 03:48:22,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:22,507 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:22,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:22,532 INFO L225 Difference]: With dead ends: 10966 [2021-06-05 03:48:22,532 INFO L226 Difference]: Without dead ends: 10424 [2021-06-05 03:48:22,532 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 136.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:22,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10424 states. [2021-06-05 03:48:22,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10424 to 5245. [2021-06-05 03:48:22,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5245 states, 5244 states have (on average 4.724828375286041) internal successors, (24777), 5244 states have internal predecessors, (24777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:22,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5245 states to 5245 states and 24777 transitions. [2021-06-05 03:48:22,757 INFO L78 Accepts]: Start accepts. Automaton has 5245 states and 24777 transitions. Word has length 29 [2021-06-05 03:48:22,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:22,757 INFO L482 AbstractCegarLoop]: Abstraction has 5245 states and 24777 transitions. [2021-06-05 03:48:22,757 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:22,758 INFO L276 IsEmpty]: Start isEmpty. Operand 5245 states and 24777 transitions. [2021-06-05 03:48:22,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:22,766 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:22,766 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:22,766 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1129 [2021-06-05 03:48:22,766 INFO L430 AbstractCegarLoop]: === Iteration 1131 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:22,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:22,767 INFO L82 PathProgramCache]: Analyzing trace with hash 490084197, now seen corresponding path program 1126 times [2021-06-05 03:48:22,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:22,767 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608730839] [2021-06-05 03:48:22,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:22,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:22,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:22,893 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:22,893 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608730839] [2021-06-05 03:48:22,893 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608730839] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:22,893 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:22,893 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:22,893 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943612609] [2021-06-05 03:48:22,893 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:22,893 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:22,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:22,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:22,893 INFO L87 Difference]: Start difference. First operand 5245 states and 24777 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:23,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:23,021 INFO L93 Difference]: Finished difference Result 10567 states and 47433 transitions. [2021-06-05 03:48:23,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:23,021 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:23,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:23,046 INFO L225 Difference]: With dead ends: 10567 [2021-06-05 03:48:23,046 INFO L226 Difference]: Without dead ends: 10000 [2021-06-05 03:48:23,046 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 150.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:23,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10000 states. [2021-06-05 03:48:23,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10000 to 5141. [2021-06-05 03:48:23,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5141 states, 5140 states have (on average 4.73715953307393) internal successors, (24349), 5140 states have internal predecessors, (24349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:23,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5141 states to 5141 states and 24349 transitions. [2021-06-05 03:48:23,268 INFO L78 Accepts]: Start accepts. Automaton has 5141 states and 24349 transitions. Word has length 29 [2021-06-05 03:48:23,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:23,268 INFO L482 AbstractCegarLoop]: Abstraction has 5141 states and 24349 transitions. [2021-06-05 03:48:23,268 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:23,268 INFO L276 IsEmpty]: Start isEmpty. Operand 5141 states and 24349 transitions. [2021-06-05 03:48:23,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:23,277 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:23,277 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:23,277 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1130 [2021-06-05 03:48:23,277 INFO L430 AbstractCegarLoop]: === Iteration 1132 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:23,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:23,277 INFO L82 PathProgramCache]: Analyzing trace with hash -1602350265, now seen corresponding path program 1127 times [2021-06-05 03:48:23,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:23,277 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542099481] [2021-06-05 03:48:23,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:23,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:23,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:23,396 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:23,396 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542099481] [2021-06-05 03:48:23,396 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542099481] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:23,396 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:23,396 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:23,396 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766214681] [2021-06-05 03:48:23,396 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:23,396 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:23,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:23,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:23,397 INFO L87 Difference]: Start difference. First operand 5141 states and 24349 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:23,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:23,495 INFO L93 Difference]: Finished difference Result 10783 states and 48190 transitions. [2021-06-05 03:48:23,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:23,495 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:23,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:23,521 INFO L225 Difference]: With dead ends: 10783 [2021-06-05 03:48:23,521 INFO L226 Difference]: Without dead ends: 10368 [2021-06-05 03:48:23,521 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 126.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:23,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10368 states. [2021-06-05 03:48:23,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10368 to 5189. [2021-06-05 03:48:23,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5189 states, 5188 states have (on average 4.727255204317657) internal successors, (24525), 5188 states have internal predecessors, (24525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:23,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5189 states to 5189 states and 24525 transitions. [2021-06-05 03:48:23,743 INFO L78 Accepts]: Start accepts. Automaton has 5189 states and 24525 transitions. Word has length 29 [2021-06-05 03:48:23,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:23,744 INFO L482 AbstractCegarLoop]: Abstraction has 5189 states and 24525 transitions. [2021-06-05 03:48:23,744 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:23,744 INFO L276 IsEmpty]: Start isEmpty. Operand 5189 states and 24525 transitions. [2021-06-05 03:48:23,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:23,752 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:23,753 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:23,753 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1131 [2021-06-05 03:48:23,753 INFO L430 AbstractCegarLoop]: === Iteration 1133 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:23,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:23,753 INFO L82 PathProgramCache]: Analyzing trace with hash -692745307, now seen corresponding path program 1128 times [2021-06-05 03:48:23,753 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:23,753 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297907771] [2021-06-05 03:48:23,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:23,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:23,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:23,870 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:23,870 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297907771] [2021-06-05 03:48:23,870 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297907771] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:23,870 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:23,870 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:23,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596118440] [2021-06-05 03:48:23,870 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:23,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:23,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:23,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:23,870 INFO L87 Difference]: Start difference. First operand 5189 states and 24525 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:23,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:23,978 INFO L93 Difference]: Finished difference Result 10511 states and 47181 transitions. [2021-06-05 03:48:23,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:23,978 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:23,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:24,003 INFO L225 Difference]: With dead ends: 10511 [2021-06-05 03:48:24,003 INFO L226 Difference]: Without dead ends: 9944 [2021-06-05 03:48:24,003 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 140.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:24,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9944 states. [2021-06-05 03:48:24,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9944 to 5085. [2021-06-05 03:48:24,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5085 states, 5084 states have (on average 4.753933910306845) internal successors, (24169), 5084 states have internal predecessors, (24169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:24,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5085 states to 5085 states and 24169 transitions. [2021-06-05 03:48:24,222 INFO L78 Accepts]: Start accepts. Automaton has 5085 states and 24169 transitions. Word has length 29 [2021-06-05 03:48:24,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:24,222 INFO L482 AbstractCegarLoop]: Abstraction has 5085 states and 24169 transitions. [2021-06-05 03:48:24,222 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:24,222 INFO L276 IsEmpty]: Start isEmpty. Operand 5085 states and 24169 transitions. [2021-06-05 03:48:24,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:24,230 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:24,230 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:24,230 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1132 [2021-06-05 03:48:24,230 INFO L430 AbstractCegarLoop]: === Iteration 1134 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:24,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:24,231 INFO L82 PathProgramCache]: Analyzing trace with hash 1484460743, now seen corresponding path program 1129 times [2021-06-05 03:48:24,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:24,231 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786848651] [2021-06-05 03:48:24,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:24,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:24,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:24,353 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:24,353 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786848651] [2021-06-05 03:48:24,353 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786848651] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:24,353 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:24,353 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:24,353 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555357515] [2021-06-05 03:48:24,353 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:24,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:24,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:24,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:24,353 INFO L87 Difference]: Start difference. First operand 5085 states and 24169 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:24,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:24,465 INFO L93 Difference]: Finished difference Result 11242 states and 50331 transitions. [2021-06-05 03:48:24,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:24,465 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:24,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:24,492 INFO L225 Difference]: With dead ends: 11242 [2021-06-05 03:48:24,492 INFO L226 Difference]: Without dead ends: 10827 [2021-06-05 03:48:24,492 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 147.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:24,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10827 states. [2021-06-05 03:48:24,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10827 to 5225. [2021-06-05 03:48:24,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5225 states, 5224 states have (on average 4.748277182235834) internal successors, (24805), 5224 states have internal predecessors, (24805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:24,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5225 states to 5225 states and 24805 transitions. [2021-06-05 03:48:24,728 INFO L78 Accepts]: Start accepts. Automaton has 5225 states and 24805 transitions. Word has length 29 [2021-06-05 03:48:24,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:24,728 INFO L482 AbstractCegarLoop]: Abstraction has 5225 states and 24805 transitions. [2021-06-05 03:48:24,728 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:24,728 INFO L276 IsEmpty]: Start isEmpty. Operand 5225 states and 24805 transitions. [2021-06-05 03:48:24,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:24,737 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:24,737 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:24,737 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1133 [2021-06-05 03:48:24,737 INFO L430 AbstractCegarLoop]: === Iteration 1135 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:24,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:24,738 INFO L82 PathProgramCache]: Analyzing trace with hash -1055685945, now seen corresponding path program 1130 times [2021-06-05 03:48:24,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:24,738 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599301682] [2021-06-05 03:48:24,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:24,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:24,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:24,861 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:24,861 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599301682] [2021-06-05 03:48:24,861 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599301682] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:24,861 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:24,861 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:24,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380951492] [2021-06-05 03:48:24,861 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:24,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:24,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:24,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:24,861 INFO L87 Difference]: Start difference. First operand 5225 states and 24805 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:24,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:24,963 INFO L93 Difference]: Finished difference Result 11369 states and 50810 transitions. [2021-06-05 03:48:24,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:24,963 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:24,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:24,989 INFO L225 Difference]: With dead ends: 11369 [2021-06-05 03:48:24,989 INFO L226 Difference]: Without dead ends: 10747 [2021-06-05 03:48:24,989 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 130.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:25,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10747 states. [2021-06-05 03:48:25,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10747 to 5145. [2021-06-05 03:48:25,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5145 states, 5144 states have (on average 4.752138413685848) internal successors, (24445), 5144 states have internal predecessors, (24445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:25,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5145 states to 5145 states and 24445 transitions. [2021-06-05 03:48:25,221 INFO L78 Accepts]: Start accepts. Automaton has 5145 states and 24445 transitions. Word has length 29 [2021-06-05 03:48:25,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:25,221 INFO L482 AbstractCegarLoop]: Abstraction has 5145 states and 24445 transitions. [2021-06-05 03:48:25,221 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:25,221 INFO L276 IsEmpty]: Start isEmpty. Operand 5145 states and 24445 transitions. [2021-06-05 03:48:25,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:25,229 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:25,230 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:25,230 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1134 [2021-06-05 03:48:25,230 INFO L430 AbstractCegarLoop]: === Iteration 1136 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:25,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:25,230 INFO L82 PathProgramCache]: Analyzing trace with hash 1152316935, now seen corresponding path program 1131 times [2021-06-05 03:48:25,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:25,230 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107504440] [2021-06-05 03:48:25,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:25,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:25,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:25,357 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:25,357 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107504440] [2021-06-05 03:48:25,357 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107504440] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:25,357 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:25,357 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:25,357 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420803588] [2021-06-05 03:48:25,357 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:25,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:25,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:25,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:25,358 INFO L87 Difference]: Start difference. First operand 5145 states and 24445 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:25,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:25,469 INFO L93 Difference]: Finished difference Result 11143 states and 49884 transitions. [2021-06-05 03:48:25,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:25,469 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:25,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:25,496 INFO L225 Difference]: With dead ends: 11143 [2021-06-05 03:48:25,496 INFO L226 Difference]: Without dead ends: 10728 [2021-06-05 03:48:25,496 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 152.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:25,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10728 states. [2021-06-05 03:48:25,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10728 to 5193. [2021-06-05 03:48:25,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5193 states, 5192 states have (on average 4.742103235747304) internal successors, (24621), 5192 states have internal predecessors, (24621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:25,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5193 states to 5193 states and 24621 transitions. [2021-06-05 03:48:25,725 INFO L78 Accepts]: Start accepts. Automaton has 5193 states and 24621 transitions. Word has length 29 [2021-06-05 03:48:25,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:25,725 INFO L482 AbstractCegarLoop]: Abstraction has 5193 states and 24621 transitions. [2021-06-05 03:48:25,725 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:25,725 INFO L276 IsEmpty]: Start isEmpty. Operand 5193 states and 24621 transitions. [2021-06-05 03:48:25,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:25,734 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:25,734 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:25,734 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1135 [2021-06-05 03:48:25,734 INFO L430 AbstractCegarLoop]: === Iteration 1137 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:25,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:25,734 INFO L82 PathProgramCache]: Analyzing trace with hash 637636009, now seen corresponding path program 1132 times [2021-06-05 03:48:25,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:25,734 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055097623] [2021-06-05 03:48:25,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:25,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:25,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:25,860 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:25,860 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055097623] [2021-06-05 03:48:25,860 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055097623] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:25,860 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:25,860 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:25,860 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308103108] [2021-06-05 03:48:25,860 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:25,860 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:25,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:25,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:25,861 INFO L87 Difference]: Start difference. First operand 5193 states and 24621 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:25,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:25,974 INFO L93 Difference]: Finished difference Result 11203 states and 50100 transitions. [2021-06-05 03:48:25,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:25,974 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:25,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:26,001 INFO L225 Difference]: With dead ends: 11203 [2021-06-05 03:48:26,001 INFO L226 Difference]: Without dead ends: 10680 [2021-06-05 03:48:26,001 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 152.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:26,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10680 states. [2021-06-05 03:48:26,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10680 to 5145. [2021-06-05 03:48:26,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5145 states, 5144 states have (on average 4.747472783825817) internal successors, (24421), 5144 states have internal predecessors, (24421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:26,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5145 states to 5145 states and 24421 transitions. [2021-06-05 03:48:26,229 INFO L78 Accepts]: Start accepts. Automaton has 5145 states and 24421 transitions. Word has length 29 [2021-06-05 03:48:26,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:26,229 INFO L482 AbstractCegarLoop]: Abstraction has 5145 states and 24421 transitions. [2021-06-05 03:48:26,229 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:26,229 INFO L276 IsEmpty]: Start isEmpty. Operand 5145 states and 24421 transitions. [2021-06-05 03:48:26,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:26,238 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:26,238 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:26,238 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1136 [2021-06-05 03:48:26,238 INFO L430 AbstractCegarLoop]: === Iteration 1138 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:26,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:26,238 INFO L82 PathProgramCache]: Analyzing trace with hash 1376464297, now seen corresponding path program 1133 times [2021-06-05 03:48:26,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:26,238 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768279664] [2021-06-05 03:48:26,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:26,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:26,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:26,354 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:26,354 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768279664] [2021-06-05 03:48:26,354 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768279664] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:26,354 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:26,354 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:26,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964691163] [2021-06-05 03:48:26,354 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:26,354 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:26,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:26,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:26,354 INFO L87 Difference]: Start difference. First operand 5145 states and 24421 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:26,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:26,452 INFO L93 Difference]: Finished difference Result 11459 states and 51205 transitions. [2021-06-05 03:48:26,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:26,453 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:26,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:26,481 INFO L225 Difference]: With dead ends: 11459 [2021-06-05 03:48:26,481 INFO L226 Difference]: Without dead ends: 10917 [2021-06-05 03:48:26,481 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 124.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:26,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10917 states. [2021-06-05 03:48:26,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10917 to 5255. [2021-06-05 03:48:26,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5255 states, 5254 states have (on average 4.72516178149981) internal successors, (24826), 5254 states have internal predecessors, (24826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:26,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5255 states to 5255 states and 24826 transitions. [2021-06-05 03:48:26,714 INFO L78 Accepts]: Start accepts. Automaton has 5255 states and 24826 transitions. Word has length 29 [2021-06-05 03:48:26,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:26,714 INFO L482 AbstractCegarLoop]: Abstraction has 5255 states and 24826 transitions. [2021-06-05 03:48:26,714 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:26,714 INFO L276 IsEmpty]: Start isEmpty. Operand 5255 states and 24826 transitions. [2021-06-05 03:48:26,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:26,723 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:26,723 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:26,723 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1137 [2021-06-05 03:48:26,723 INFO L430 AbstractCegarLoop]: === Iteration 1139 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:26,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:26,723 INFO L82 PathProgramCache]: Analyzing trace with hash 635512199, now seen corresponding path program 1134 times [2021-06-05 03:48:26,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:26,723 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235435711] [2021-06-05 03:48:26,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:26,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:26,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:26,838 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:26,838 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235435711] [2021-06-05 03:48:26,838 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235435711] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:26,838 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:26,838 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:26,838 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074027634] [2021-06-05 03:48:26,838 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:26,838 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:26,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:26,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:26,839 INFO L87 Difference]: Start difference. First operand 5255 states and 24826 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:26,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:26,954 INFO L93 Difference]: Finished difference Result 11392 states and 50832 transitions. [2021-06-05 03:48:26,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:26,954 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:26,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:26,981 INFO L225 Difference]: With dead ends: 11392 [2021-06-05 03:48:26,981 INFO L226 Difference]: Without dead ends: 10767 [2021-06-05 03:48:26,981 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 140.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:27,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10767 states. [2021-06-05 03:48:27,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10767 to 5105. [2021-06-05 03:48:27,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5105 states, 5104 states have (on average 4.753330721003135) internal successors, (24261), 5104 states have internal predecessors, (24261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:27,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 24261 transitions. [2021-06-05 03:48:27,213 INFO L78 Accepts]: Start accepts. Automaton has 5105 states and 24261 transitions. Word has length 29 [2021-06-05 03:48:27,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:27,213 INFO L482 AbstractCegarLoop]: Abstraction has 5105 states and 24261 transitions. [2021-06-05 03:48:27,214 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:27,214 INFO L276 IsEmpty]: Start isEmpty. Operand 5105 states and 24261 transitions. [2021-06-05 03:48:27,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:27,222 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:27,222 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:27,222 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1138 [2021-06-05 03:48:27,222 INFO L430 AbstractCegarLoop]: === Iteration 1140 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:27,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:27,223 INFO L82 PathProgramCache]: Analyzing trace with hash -661316183, now seen corresponding path program 1135 times [2021-06-05 03:48:27,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:27,223 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303128755] [2021-06-05 03:48:27,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:27,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:27,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:27,343 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:27,343 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303128755] [2021-06-05 03:48:27,343 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303128755] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:27,343 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:27,343 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:27,343 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538312199] [2021-06-05 03:48:27,343 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:27,343 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:27,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:27,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:27,344 INFO L87 Difference]: Start difference. First operand 5105 states and 24261 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:27,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:27,462 INFO L93 Difference]: Finished difference Result 11144 states and 49880 transitions. [2021-06-05 03:48:27,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:27,463 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:27,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:27,490 INFO L225 Difference]: With dead ends: 11144 [2021-06-05 03:48:27,490 INFO L226 Difference]: Without dead ends: 10729 [2021-06-05 03:48:27,490 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 145.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:27,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10729 states. [2021-06-05 03:48:27,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10729 to 5225. [2021-06-05 03:48:27,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5225 states, 5224 states have (on average 4.744448698315467) internal successors, (24785), 5224 states have internal predecessors, (24785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:27,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5225 states to 5225 states and 24785 transitions. [2021-06-05 03:48:27,726 INFO L78 Accepts]: Start accepts. Automaton has 5225 states and 24785 transitions. Word has length 29 [2021-06-05 03:48:27,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:27,727 INFO L482 AbstractCegarLoop]: Abstraction has 5225 states and 24785 transitions. [2021-06-05 03:48:27,727 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:27,727 INFO L276 IsEmpty]: Start isEmpty. Operand 5225 states and 24785 transitions. [2021-06-05 03:48:27,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:27,736 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:27,736 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:27,736 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1139 [2021-06-05 03:48:27,736 INFO L430 AbstractCegarLoop]: === Iteration 1141 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:27,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:27,736 INFO L82 PathProgramCache]: Analyzing trace with hash 1093504425, now seen corresponding path program 1136 times [2021-06-05 03:48:27,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:27,736 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614831566] [2021-06-05 03:48:27,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:27,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:27,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:27,859 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:27,859 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614831566] [2021-06-05 03:48:27,859 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614831566] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:27,859 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:27,859 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:27,859 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624364852] [2021-06-05 03:48:27,860 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:27,860 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:27,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:27,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:27,860 INFO L87 Difference]: Start difference. First operand 5225 states and 24785 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:27,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:27,958 INFO L93 Difference]: Finished difference Result 11271 states and 50359 transitions. [2021-06-05 03:48:27,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:27,958 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:27,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:28,037 INFO L225 Difference]: With dead ends: 11271 [2021-06-05 03:48:28,037 INFO L226 Difference]: Without dead ends: 10649 [2021-06-05 03:48:28,037 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 131.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:28,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10649 states. [2021-06-05 03:48:28,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10649 to 5145. [2021-06-05 03:48:28,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5145 states, 5144 states have (on average 4.7482503888024885) internal successors, (24425), 5144 states have internal predecessors, (24425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:28,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5145 states to 5145 states and 24425 transitions. [2021-06-05 03:48:28,252 INFO L78 Accepts]: Start accepts. Automaton has 5145 states and 24425 transitions. Word has length 29 [2021-06-05 03:48:28,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:28,253 INFO L482 AbstractCegarLoop]: Abstraction has 5145 states and 24425 transitions. [2021-06-05 03:48:28,253 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:28,253 INFO L276 IsEmpty]: Start isEmpty. Operand 5145 states and 24425 transitions. [2021-06-05 03:48:28,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:28,261 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:28,261 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:28,261 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1140 [2021-06-05 03:48:28,261 INFO L430 AbstractCegarLoop]: === Iteration 1142 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:28,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:28,262 INFO L82 PathProgramCache]: Analyzing trace with hash -1261611513, now seen corresponding path program 1137 times [2021-06-05 03:48:28,262 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:28,262 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130343961] [2021-06-05 03:48:28,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:28,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:28,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:28,372 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:28,372 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130343961] [2021-06-05 03:48:28,372 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130343961] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:28,372 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:28,372 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:28,372 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133324000] [2021-06-05 03:48:28,372 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:28,372 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:28,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:28,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:28,372 INFO L87 Difference]: Start difference. First operand 5145 states and 24425 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:28,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:28,490 INFO L93 Difference]: Finished difference Result 10937 states and 48993 transitions. [2021-06-05 03:48:28,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:28,491 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:28,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:28,517 INFO L225 Difference]: With dead ends: 10937 [2021-06-05 03:48:28,517 INFO L226 Difference]: Without dead ends: 10522 [2021-06-05 03:48:28,517 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 134.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:28,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10522 states. [2021-06-05 03:48:28,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10522 to 5193. [2021-06-05 03:48:28,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5193 states, 5192 states have (on average 4.738251155624037) internal successors, (24601), 5192 states have internal predecessors, (24601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:28,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5193 states to 5193 states and 24601 transitions. [2021-06-05 03:48:28,745 INFO L78 Accepts]: Start accepts. Automaton has 5193 states and 24601 transitions. Word has length 29 [2021-06-05 03:48:28,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:28,745 INFO L482 AbstractCegarLoop]: Abstraction has 5193 states and 24601 transitions. [2021-06-05 03:48:28,745 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:28,746 INFO L276 IsEmpty]: Start isEmpty. Operand 5193 states and 24601 transitions. [2021-06-05 03:48:28,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:28,754 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:28,754 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:28,754 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1141 [2021-06-05 03:48:28,754 INFO L430 AbstractCegarLoop]: === Iteration 1143 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:28,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:28,755 INFO L82 PathProgramCache]: Analyzing trace with hash 1287330985, now seen corresponding path program 1138 times [2021-06-05 03:48:28,755 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:28,755 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137962986] [2021-06-05 03:48:28,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:28,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:28,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:28,864 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:28,864 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137962986] [2021-06-05 03:48:28,865 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137962986] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:28,865 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:28,865 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:28,865 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853846867] [2021-06-05 03:48:28,865 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:28,865 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:28,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:28,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:28,865 INFO L87 Difference]: Start difference. First operand 5193 states and 24601 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:28,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:28,995 INFO L93 Difference]: Finished difference Result 10665 states and 47984 transitions. [2021-06-05 03:48:28,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:28,995 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:28,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:29,022 INFO L225 Difference]: With dead ends: 10665 [2021-06-05 03:48:29,022 INFO L226 Difference]: Without dead ends: 10154 [2021-06-05 03:48:29,022 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 134.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:29,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10154 states. [2021-06-05 03:48:29,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10154 to 5145. [2021-06-05 03:48:29,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5145 states, 5144 states have (on average 4.743584758942458) internal successors, (24401), 5144 states have internal predecessors, (24401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:29,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5145 states to 5145 states and 24401 transitions. [2021-06-05 03:48:29,249 INFO L78 Accepts]: Start accepts. Automaton has 5145 states and 24401 transitions. Word has length 29 [2021-06-05 03:48:29,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:29,249 INFO L482 AbstractCegarLoop]: Abstraction has 5145 states and 24401 transitions. [2021-06-05 03:48:29,249 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:29,249 INFO L276 IsEmpty]: Start isEmpty. Operand 5145 states and 24401 transitions. [2021-06-05 03:48:29,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:29,258 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:29,258 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:29,258 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1142 [2021-06-05 03:48:29,258 INFO L430 AbstractCegarLoop]: === Iteration 1144 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:29,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:29,258 INFO L82 PathProgramCache]: Analyzing trace with hash 681761961, now seen corresponding path program 1139 times [2021-06-05 03:48:29,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:29,258 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423138933] [2021-06-05 03:48:29,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:29,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:29,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:29,380 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:29,380 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423138933] [2021-06-05 03:48:29,380 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423138933] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:29,380 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:29,380 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:29,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200633671] [2021-06-05 03:48:29,381 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:29,381 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:29,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:29,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:29,381 INFO L87 Difference]: Start difference. First operand 5145 states and 24401 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:29,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:29,480 INFO L93 Difference]: Finished difference Result 11120 states and 49764 transitions. [2021-06-05 03:48:29,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:29,480 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:29,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:29,506 INFO L225 Difference]: With dead ends: 11120 [2021-06-05 03:48:29,506 INFO L226 Difference]: Without dead ends: 10578 [2021-06-05 03:48:29,506 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 129.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:29,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10578 states. [2021-06-05 03:48:29,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10578 to 5249. [2021-06-05 03:48:29,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5249 states, 5248 states have (on average 4.723513719512195) internal successors, (24789), 5248 states have internal predecessors, (24789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:29,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5249 states to 5249 states and 24789 transitions. [2021-06-05 03:48:29,738 INFO L78 Accepts]: Start accepts. Automaton has 5249 states and 24789 transitions. Word has length 29 [2021-06-05 03:48:29,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:29,738 INFO L482 AbstractCegarLoop]: Abstraction has 5249 states and 24789 transitions. [2021-06-05 03:48:29,738 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:29,738 INFO L276 IsEmpty]: Start isEmpty. Operand 5249 states and 24789 transitions. [2021-06-05 03:48:29,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:29,747 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:29,747 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:29,747 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1143 [2021-06-05 03:48:29,747 INFO L430 AbstractCegarLoop]: === Iteration 1145 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:29,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:29,747 INFO L82 PathProgramCache]: Analyzing trace with hash 1243194759, now seen corresponding path program 1140 times [2021-06-05 03:48:29,747 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:29,747 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460726051] [2021-06-05 03:48:29,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:29,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:29,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:29,876 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:29,876 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460726051] [2021-06-05 03:48:29,876 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460726051] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:29,876 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:29,876 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:29,876 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919313948] [2021-06-05 03:48:29,876 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:29,876 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:29,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:29,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:29,876 INFO L87 Difference]: Start difference. First operand 5249 states and 24789 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:29,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:29,989 INFO L93 Difference]: Finished difference Result 10721 states and 48172 transitions. [2021-06-05 03:48:29,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:29,989 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:29,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:30,015 INFO L225 Difference]: With dead ends: 10721 [2021-06-05 03:48:30,016 INFO L226 Difference]: Without dead ends: 10114 [2021-06-05 03:48:30,016 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 149.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:30,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10114 states. [2021-06-05 03:48:30,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10114 to 5105. [2021-06-05 03:48:30,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5105 states, 5104 states have (on average 4.7494122257053295) internal successors, (24241), 5104 states have internal predecessors, (24241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:30,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 24241 transitions. [2021-06-05 03:48:30,240 INFO L78 Accepts]: Start accepts. Automaton has 5105 states and 24241 transitions. Word has length 29 [2021-06-05 03:48:30,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:30,240 INFO L482 AbstractCegarLoop]: Abstraction has 5105 states and 24241 transitions. [2021-06-05 03:48:30,240 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:30,240 INFO L276 IsEmpty]: Start isEmpty. Operand 5105 states and 24241 transitions. [2021-06-05 03:48:30,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:30,249 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:30,249 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:30,249 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1144 [2021-06-05 03:48:30,249 INFO L430 AbstractCegarLoop]: === Iteration 1146 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:30,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:30,249 INFO L82 PathProgramCache]: Analyzing trace with hash 1300449607, now seen corresponding path program 1141 times [2021-06-05 03:48:30,249 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:30,249 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206412955] [2021-06-05 03:48:30,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:30,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:30,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:30,365 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:30,365 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206412955] [2021-06-05 03:48:30,365 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206412955] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:30,365 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:30,365 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:30,365 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855859513] [2021-06-05 03:48:30,365 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:30,365 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:30,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:30,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:30,365 INFO L87 Difference]: Start difference. First operand 5105 states and 24241 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:30,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:30,478 INFO L93 Difference]: Finished difference Result 10930 states and 48966 transitions. [2021-06-05 03:48:30,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:30,479 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:30,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:30,504 INFO L225 Difference]: With dead ends: 10930 [2021-06-05 03:48:30,505 INFO L226 Difference]: Without dead ends: 10515 [2021-06-05 03:48:30,505 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 140.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:30,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10515 states. [2021-06-05 03:48:30,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10515 to 5177. [2021-06-05 03:48:30,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5177 states, 5176 states have (on average 4.741306027820711) internal successors, (24541), 5176 states have internal predecessors, (24541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:30,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5177 states to 5177 states and 24541 transitions. [2021-06-05 03:48:30,736 INFO L78 Accepts]: Start accepts. Automaton has 5177 states and 24541 transitions. Word has length 29 [2021-06-05 03:48:30,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:30,736 INFO L482 AbstractCegarLoop]: Abstraction has 5177 states and 24541 transitions. [2021-06-05 03:48:30,736 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:30,736 INFO L276 IsEmpty]: Start isEmpty. Operand 5177 states and 24541 transitions. [2021-06-05 03:48:30,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:30,745 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:30,745 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:30,745 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1145 [2021-06-05 03:48:30,745 INFO L430 AbstractCegarLoop]: === Iteration 1147 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:30,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:30,745 INFO L82 PathProgramCache]: Analyzing trace with hash 785768681, now seen corresponding path program 1142 times [2021-06-05 03:48:30,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:30,745 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165992115] [2021-06-05 03:48:30,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:30,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:30,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:30,861 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:30,861 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165992115] [2021-06-05 03:48:30,861 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165992115] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:30,861 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:30,861 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:30,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411078504] [2021-06-05 03:48:30,861 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:30,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:30,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:30,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:30,862 INFO L87 Difference]: Start difference. First operand 5177 states and 24541 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:30,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:30,978 INFO L93 Difference]: Finished difference Result 10990 states and 49182 transitions. [2021-06-05 03:48:30,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:30,978 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:30,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:31,005 INFO L225 Difference]: With dead ends: 10990 [2021-06-05 03:48:31,005 INFO L226 Difference]: Without dead ends: 10467 [2021-06-05 03:48:31,005 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 141.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:31,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10467 states. [2021-06-05 03:48:31,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10467 to 5129. [2021-06-05 03:48:31,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5129 states, 5128 states have (on average 4.746684867394696) internal successors, (24341), 5128 states have internal predecessors, (24341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:31,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5129 states to 5129 states and 24341 transitions. [2021-06-05 03:48:31,237 INFO L78 Accepts]: Start accepts. Automaton has 5129 states and 24341 transitions. Word has length 29 [2021-06-05 03:48:31,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:31,237 INFO L482 AbstractCegarLoop]: Abstraction has 5129 states and 24341 transitions. [2021-06-05 03:48:31,237 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:31,237 INFO L276 IsEmpty]: Start isEmpty. Operand 5129 states and 24341 transitions. [2021-06-05 03:48:31,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:31,245 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:31,246 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:31,246 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1146 [2021-06-05 03:48:31,246 INFO L430 AbstractCegarLoop]: === Iteration 1148 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:31,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:31,246 INFO L82 PathProgramCache]: Analyzing trace with hash 126489897, now seen corresponding path program 1143 times [2021-06-05 03:48:31,246 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:31,246 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149674397] [2021-06-05 03:48:31,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:31,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:31,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:31,348 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:31,348 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149674397] [2021-06-05 03:48:31,348 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149674397] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:31,348 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:31,348 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:31,348 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503513405] [2021-06-05 03:48:31,349 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:31,349 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:31,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:31,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:31,349 INFO L87 Difference]: Start difference. First operand 5129 states and 24341 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:31,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:31,476 INFO L93 Difference]: Finished difference Result 10822 states and 48502 transitions. [2021-06-05 03:48:31,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:31,476 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:31,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:31,502 INFO L225 Difference]: With dead ends: 10822 [2021-06-05 03:48:31,502 INFO L226 Difference]: Without dead ends: 10407 [2021-06-05 03:48:31,503 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 127.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:31,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10407 states. [2021-06-05 03:48:31,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10407 to 5177. [2021-06-05 03:48:31,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5177 states, 5176 states have (on average 4.736669242658423) internal successors, (24517), 5176 states have internal predecessors, (24517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:31,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5177 states to 5177 states and 24517 transitions. [2021-06-05 03:48:31,730 INFO L78 Accepts]: Start accepts. Automaton has 5177 states and 24517 transitions. Word has length 29 [2021-06-05 03:48:31,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:31,730 INFO L482 AbstractCegarLoop]: Abstraction has 5177 states and 24517 transitions. [2021-06-05 03:48:31,730 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:31,730 INFO L276 IsEmpty]: Start isEmpty. Operand 5177 states and 24517 transitions. [2021-06-05 03:48:31,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:31,739 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:31,739 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:31,739 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1147 [2021-06-05 03:48:31,739 INFO L430 AbstractCegarLoop]: === Iteration 1149 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:31,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:31,739 INFO L82 PathProgramCache]: Analyzing trace with hash -75288599, now seen corresponding path program 1144 times [2021-06-05 03:48:31,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:31,739 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293818807] [2021-06-05 03:48:31,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:31,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:31,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:31,841 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:31,841 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293818807] [2021-06-05 03:48:31,841 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293818807] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:31,841 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:31,841 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:31,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550733117] [2021-06-05 03:48:31,842 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:31,842 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:31,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:31,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:31,842 INFO L87 Difference]: Start difference. First operand 5177 states and 24517 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:31,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:31,965 INFO L93 Difference]: Finished difference Result 10550 states and 47493 transitions. [2021-06-05 03:48:31,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:31,965 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:31,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:31,990 INFO L225 Difference]: With dead ends: 10550 [2021-06-05 03:48:31,990 INFO L226 Difference]: Without dead ends: 10039 [2021-06-05 03:48:31,990 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 127.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:32,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10039 states. [2021-06-05 03:48:32,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10039 to 5129. [2021-06-05 03:48:32,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5129 states, 5128 states have (on average 4.7420046801872076) internal successors, (24317), 5128 states have internal predecessors, (24317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:32,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5129 states to 5129 states and 24317 transitions. [2021-06-05 03:48:32,216 INFO L78 Accepts]: Start accepts. Automaton has 5129 states and 24317 transitions. Word has length 29 [2021-06-05 03:48:32,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:32,216 INFO L482 AbstractCegarLoop]: Abstraction has 5129 states and 24317 transitions. [2021-06-05 03:48:32,217 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:32,217 INFO L276 IsEmpty]: Start isEmpty. Operand 5129 states and 24317 transitions. [2021-06-05 03:48:32,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:32,225 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:32,225 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:32,225 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1148 [2021-06-05 03:48:32,226 INFO L430 AbstractCegarLoop]: === Iteration 1150 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:32,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:32,226 INFO L82 PathProgramCache]: Analyzing trace with hash -2106816757, now seen corresponding path program 1145 times [2021-06-05 03:48:32,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:32,226 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976140475] [2021-06-05 03:48:32,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:32,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:32,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:32,329 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:32,329 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976140475] [2021-06-05 03:48:32,329 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976140475] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:32,329 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:32,329 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:32,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448452524] [2021-06-05 03:48:32,329 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:32,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:32,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:32,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:32,330 INFO L87 Difference]: Start difference. First operand 5129 states and 24317 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:32,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:32,448 INFO L93 Difference]: Finished difference Result 10906 states and 48866 transitions. [2021-06-05 03:48:32,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:32,448 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:32,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:32,475 INFO L225 Difference]: With dead ends: 10906 [2021-06-05 03:48:32,475 INFO L226 Difference]: Without dead ends: 10431 [2021-06-05 03:48:32,475 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:32,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10431 states. [2021-06-05 03:48:32,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10431 to 5201. [2021-06-05 03:48:32,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5201 states, 5200 states have (on average 4.7294230769230765) internal successors, (24593), 5200 states have internal predecessors, (24593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:32,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5201 states to 5201 states and 24593 transitions. [2021-06-05 03:48:32,702 INFO L78 Accepts]: Start accepts. Automaton has 5201 states and 24593 transitions. Word has length 29 [2021-06-05 03:48:32,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:32,702 INFO L482 AbstractCegarLoop]: Abstraction has 5201 states and 24593 transitions. [2021-06-05 03:48:32,702 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:32,702 INFO L276 IsEmpty]: Start isEmpty. Operand 5201 states and 24593 transitions. [2021-06-05 03:48:32,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:32,710 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:32,710 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:32,710 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1149 [2021-06-05 03:48:32,710 INFO L430 AbstractCegarLoop]: === Iteration 1151 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:32,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:32,711 INFO L82 PathProgramCache]: Analyzing trace with hash 796005993, now seen corresponding path program 1146 times [2021-06-05 03:48:32,711 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:32,711 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534727697] [2021-06-05 03:48:32,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:32,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:32,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:32,815 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:32,815 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534727697] [2021-06-05 03:48:32,815 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534727697] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:32,815 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:32,815 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:32,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696581132] [2021-06-05 03:48:32,815 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:32,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:32,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:32,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:32,815 INFO L87 Difference]: Start difference. First operand 5201 states and 24593 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:32,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:32,931 INFO L93 Difference]: Finished difference Result 10574 states and 47569 transitions. [2021-06-05 03:48:32,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:32,931 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:32,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:32,956 INFO L225 Difference]: With dead ends: 10574 [2021-06-05 03:48:32,957 INFO L226 Difference]: Without dead ends: 10015 [2021-06-05 03:48:32,957 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 129.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:33,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10015 states. [2021-06-05 03:48:33,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10015 to 5105. [2021-06-05 03:48:33,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5105 states, 5104 states have (on average 4.747061128526646) internal successors, (24229), 5104 states have internal predecessors, (24229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:33,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 24229 transitions. [2021-06-05 03:48:33,184 INFO L78 Accepts]: Start accepts. Automaton has 5105 states and 24229 transitions. Word has length 29 [2021-06-05 03:48:33,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:33,184 INFO L482 AbstractCegarLoop]: Abstraction has 5105 states and 24229 transitions. [2021-06-05 03:48:33,184 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:33,184 INFO L276 IsEmpty]: Start isEmpty. Operand 5105 states and 24229 transitions. [2021-06-05 03:48:33,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:33,193 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:33,193 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:33,193 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1150 [2021-06-05 03:48:33,193 INFO L430 AbstractCegarLoop]: === Iteration 1152 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:33,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:33,193 INFO L82 PathProgramCache]: Analyzing trace with hash -1959692533, now seen corresponding path program 1147 times [2021-06-05 03:48:33,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:33,193 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578980980] [2021-06-05 03:48:33,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:33,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:33,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:33,296 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:33,296 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578980980] [2021-06-05 03:48:33,296 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578980980] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:33,296 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:33,296 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:33,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604941534] [2021-06-05 03:48:33,297 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:33,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:33,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:33,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:33,297 INFO L87 Difference]: Start difference. First operand 5105 states and 24229 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:33,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:33,397 INFO L93 Difference]: Finished difference Result 11457 states and 51242 transitions. [2021-06-05 03:48:33,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:33,397 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:33,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:33,424 INFO L225 Difference]: With dead ends: 11457 [2021-06-05 03:48:33,424 INFO L226 Difference]: Without dead ends: 10915 [2021-06-05 03:48:33,424 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 111.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:33,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10915 states. [2021-06-05 03:48:33,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10915 to 5267. [2021-06-05 03:48:33,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5267 states, 5266 states have (on average 4.729586023547284) internal successors, (24906), 5266 states have internal predecessors, (24906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:33,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5267 states to 5267 states and 24906 transitions. [2021-06-05 03:48:33,668 INFO L78 Accepts]: Start accepts. Automaton has 5267 states and 24906 transitions. Word has length 29 [2021-06-05 03:48:33,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:33,668 INFO L482 AbstractCegarLoop]: Abstraction has 5267 states and 24906 transitions. [2021-06-05 03:48:33,668 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:33,668 INFO L276 IsEmpty]: Start isEmpty. Operand 5267 states and 24906 transitions. [2021-06-05 03:48:33,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:33,677 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:33,677 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:33,677 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1151 [2021-06-05 03:48:33,677 INFO L430 AbstractCegarLoop]: === Iteration 1153 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:33,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:33,677 INFO L82 PathProgramCache]: Analyzing trace with hash 1594322665, now seen corresponding path program 1148 times [2021-06-05 03:48:33,677 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:33,677 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180015288] [2021-06-05 03:48:33,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:33,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:33,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:33,781 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:33,781 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180015288] [2021-06-05 03:48:33,781 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180015288] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:33,781 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:33,781 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:33,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316441291] [2021-06-05 03:48:33,781 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:33,781 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:33,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:33,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:33,782 INFO L87 Difference]: Start difference. First operand 5267 states and 24906 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:33,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:33,899 INFO L93 Difference]: Finished difference Result 11390 states and 50869 transitions. [2021-06-05 03:48:33,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:33,899 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:33,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:33,927 INFO L225 Difference]: With dead ends: 11390 [2021-06-05 03:48:33,927 INFO L226 Difference]: Without dead ends: 10805 [2021-06-05 03:48:33,927 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 129.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:34,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10805 states. [2021-06-05 03:48:34,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10805 to 5157. [2021-06-05 03:48:34,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5157 states, 5156 states have (on average 4.741854150504267) internal successors, (24449), 5156 states have internal predecessors, (24449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:34,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5157 states to 5157 states and 24449 transitions. [2021-06-05 03:48:34,155 INFO L78 Accepts]: Start accepts. Automaton has 5157 states and 24449 transitions. Word has length 29 [2021-06-05 03:48:34,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:34,155 INFO L482 AbstractCegarLoop]: Abstraction has 5157 states and 24449 transitions. [2021-06-05 03:48:34,155 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:34,155 INFO L276 IsEmpty]: Start isEmpty. Operand 5157 states and 24449 transitions. [2021-06-05 03:48:34,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:34,163 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:34,163 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:34,163 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1152 [2021-06-05 03:48:34,163 INFO L430 AbstractCegarLoop]: === Iteration 1154 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:34,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:34,164 INFO L82 PathProgramCache]: Analyzing trace with hash 219195113, now seen corresponding path program 1149 times [2021-06-05 03:48:34,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:34,164 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911969410] [2021-06-05 03:48:34,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:34,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:34,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:34,279 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:34,279 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911969410] [2021-06-05 03:48:34,279 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911969410] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:34,279 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:34,279 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:34,279 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562395571] [2021-06-05 03:48:34,279 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:34,279 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:34,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:34,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:34,279 INFO L87 Difference]: Start difference. First operand 5157 states and 24449 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:34,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:34,377 INFO L93 Difference]: Finished difference Result 11216 states and 50200 transitions. [2021-06-05 03:48:34,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:34,377 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:34,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:34,403 INFO L225 Difference]: With dead ends: 11216 [2021-06-05 03:48:34,403 INFO L226 Difference]: Without dead ends: 10674 [2021-06-05 03:48:34,404 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 124.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:34,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10674 states. [2021-06-05 03:48:34,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10674 to 5261. [2021-06-05 03:48:34,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5261 states, 5260 states have (on average 4.721863117870722) internal successors, (24837), 5260 states have internal predecessors, (24837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:34,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5261 states to 5261 states and 24837 transitions. [2021-06-05 03:48:34,635 INFO L78 Accepts]: Start accepts. Automaton has 5261 states and 24837 transitions. Word has length 29 [2021-06-05 03:48:34,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:34,635 INFO L482 AbstractCegarLoop]: Abstraction has 5261 states and 24837 transitions. [2021-06-05 03:48:34,635 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:34,635 INFO L276 IsEmpty]: Start isEmpty. Operand 5261 states and 24837 transitions. [2021-06-05 03:48:34,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:34,644 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:34,644 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:34,644 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1153 [2021-06-05 03:48:34,644 INFO L430 AbstractCegarLoop]: === Iteration 1155 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:34,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:34,644 INFO L82 PathProgramCache]: Analyzing trace with hash 2077368297, now seen corresponding path program 1150 times [2021-06-05 03:48:34,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:34,644 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994290153] [2021-06-05 03:48:34,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:34,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:34,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:34,759 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:34,759 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994290153] [2021-06-05 03:48:34,759 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994290153] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:34,759 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:34,759 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:34,759 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361376577] [2021-06-05 03:48:34,759 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:34,759 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:34,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:34,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:34,760 INFO L87 Difference]: Start difference. First operand 5261 states and 24837 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:34,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:34,887 INFO L93 Difference]: Finished difference Result 10817 states and 48608 transitions. [2021-06-05 03:48:34,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:34,887 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:34,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:34,912 INFO L225 Difference]: With dead ends: 10817 [2021-06-05 03:48:34,912 INFO L226 Difference]: Without dead ends: 10250 [2021-06-05 03:48:34,912 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 139.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:35,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10250 states. [2021-06-05 03:48:35,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10250 to 5157. [2021-06-05 03:48:35,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5157 states, 5156 states have (on average 4.7317688130333595) internal successors, (24397), 5156 states have internal predecessors, (24397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:35,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5157 states to 5157 states and 24397 transitions. [2021-06-05 03:48:35,135 INFO L78 Accepts]: Start accepts. Automaton has 5157 states and 24397 transitions. Word has length 29 [2021-06-05 03:48:35,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:35,135 INFO L482 AbstractCegarLoop]: Abstraction has 5157 states and 24397 transitions. [2021-06-05 03:48:35,135 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:35,135 INFO L276 IsEmpty]: Start isEmpty. Operand 5157 states and 24397 transitions. [2021-06-05 03:48:35,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:35,143 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:35,144 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:35,144 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1154 [2021-06-05 03:48:35,144 INFO L430 AbstractCegarLoop]: === Iteration 1156 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:35,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:35,144 INFO L82 PathProgramCache]: Analyzing trace with hash -34637753, now seen corresponding path program 1151 times [2021-06-05 03:48:35,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:35,144 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141366599] [2021-06-05 03:48:35,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:35,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:35,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:35,247 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:35,247 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141366599] [2021-06-05 03:48:35,247 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141366599] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:35,247 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:35,247 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:35,247 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617841867] [2021-06-05 03:48:35,247 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:35,247 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:35,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:35,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:35,247 INFO L87 Difference]: Start difference. First operand 5157 states and 24397 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:35,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:35,377 INFO L93 Difference]: Finished difference Result 11117 states and 49741 transitions. [2021-06-05 03:48:35,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:35,378 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:35,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:35,404 INFO L225 Difference]: With dead ends: 11117 [2021-06-05 03:48:35,404 INFO L226 Difference]: Without dead ends: 10642 [2021-06-05 03:48:35,405 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:35,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10642 states. [2021-06-05 03:48:35,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10642 to 5229. [2021-06-05 03:48:35,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5229 states, 5228 states have (on average 4.719395562356541) internal successors, (24673), 5228 states have internal predecessors, (24673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:35,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5229 states to 5229 states and 24673 transitions. [2021-06-05 03:48:35,636 INFO L78 Accepts]: Start accepts. Automaton has 5229 states and 24673 transitions. Word has length 29 [2021-06-05 03:48:35,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:35,636 INFO L482 AbstractCegarLoop]: Abstraction has 5229 states and 24673 transitions. [2021-06-05 03:48:35,636 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:35,636 INFO L276 IsEmpty]: Start isEmpty. Operand 5229 states and 24673 transitions. [2021-06-05 03:48:35,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:35,645 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:35,645 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:35,645 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1155 [2021-06-05 03:48:35,645 INFO L430 AbstractCegarLoop]: === Iteration 1157 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:35,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:35,645 INFO L82 PathProgramCache]: Analyzing trace with hash -241445719, now seen corresponding path program 1152 times [2021-06-05 03:48:35,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:35,645 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683524092] [2021-06-05 03:48:35,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:35,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:35,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:35,748 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:35,748 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683524092] [2021-06-05 03:48:35,748 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683524092] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:35,749 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:35,749 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:35,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238368072] [2021-06-05 03:48:35,749 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:35,749 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:35,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:35,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:35,749 INFO L87 Difference]: Start difference. First operand 5229 states and 24673 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:35,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:35,859 INFO L93 Difference]: Finished difference Result 10785 states and 48444 transitions. [2021-06-05 03:48:35,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:35,859 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:35,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:35,884 INFO L225 Difference]: With dead ends: 10785 [2021-06-05 03:48:35,885 INFO L226 Difference]: Without dead ends: 10178 [2021-06-05 03:48:35,885 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 127.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:36,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10178 states. [2021-06-05 03:48:36,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10178 to 5085. [2021-06-05 03:48:36,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5085 states, 5084 states have (on average 4.752360346184107) internal successors, (24161), 5084 states have internal predecessors, (24161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:36,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5085 states to 5085 states and 24161 transitions. [2021-06-05 03:48:36,112 INFO L78 Accepts]: Start accepts. Automaton has 5085 states and 24161 transitions. Word has length 29 [2021-06-05 03:48:36,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:36,112 INFO L482 AbstractCegarLoop]: Abstraction has 5085 states and 24161 transitions. [2021-06-05 03:48:36,112 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:36,112 INFO L276 IsEmpty]: Start isEmpty. Operand 5085 states and 24161 transitions. [2021-06-05 03:48:36,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:36,120 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:36,120 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:36,121 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1156 [2021-06-05 03:48:36,121 INFO L430 AbstractCegarLoop]: === Iteration 1158 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:36,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:36,121 INFO L82 PathProgramCache]: Analyzing trace with hash 1871056229, now seen corresponding path program 1153 times [2021-06-05 03:48:36,121 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:36,121 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409327400] [2021-06-05 03:48:36,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:36,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:36,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:36,238 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:36,238 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409327400] [2021-06-05 03:48:36,238 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409327400] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:36,238 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:36,238 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:36,238 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298625001] [2021-06-05 03:48:36,238 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:36,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:36,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:36,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:36,238 INFO L87 Difference]: Start difference. First operand 5085 states and 24161 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:36,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:36,348 INFO L93 Difference]: Finished difference Result 10449 states and 46756 transitions. [2021-06-05 03:48:36,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:36,349 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:36,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:36,374 INFO L225 Difference]: With dead ends: 10449 [2021-06-05 03:48:36,374 INFO L226 Difference]: Without dead ends: 10034 [2021-06-05 03:48:36,374 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 142.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:36,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10034 states. [2021-06-05 03:48:36,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10034 to 5141. [2021-06-05 03:48:36,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5141 states, 5140 states have (on average 4.746498054474708) internal successors, (24397), 5140 states have internal predecessors, (24397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:36,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5141 states to 5141 states and 24397 transitions. [2021-06-05 03:48:36,592 INFO L78 Accepts]: Start accepts. Automaton has 5141 states and 24397 transitions. Word has length 29 [2021-06-05 03:48:36,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:36,592 INFO L482 AbstractCegarLoop]: Abstraction has 5141 states and 24397 transitions. [2021-06-05 03:48:36,592 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:36,592 INFO L276 IsEmpty]: Start isEmpty. Operand 5141 states and 24397 transitions. [2021-06-05 03:48:36,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:36,601 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:36,601 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:36,601 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1157 [2021-06-05 03:48:36,601 INFO L430 AbstractCegarLoop]: === Iteration 1159 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:36,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:36,601 INFO L82 PathProgramCache]: Analyzing trace with hash -531064765, now seen corresponding path program 1154 times [2021-06-05 03:48:36,601 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:36,601 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514205175] [2021-06-05 03:48:36,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:36,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:36,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:36,717 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:36,717 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514205175] [2021-06-05 03:48:36,717 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514205175] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:36,717 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:36,717 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:36,717 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792505314] [2021-06-05 03:48:36,718 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:36,718 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:36,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:36,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:36,718 INFO L87 Difference]: Start difference. First operand 5141 states and 24397 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:36,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:36,813 INFO L93 Difference]: Finished difference Result 10449 states and 46724 transitions. [2021-06-05 03:48:36,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:36,813 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:36,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:36,838 INFO L225 Difference]: With dead ends: 10449 [2021-06-05 03:48:36,838 INFO L226 Difference]: Without dead ends: 10002 [2021-06-05 03:48:36,838 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 124.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:36,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10002 states. [2021-06-05 03:48:37,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10002 to 5109. [2021-06-05 03:48:37,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5109 states, 5108 states have (on average 4.751174628034455) internal successors, (24269), 5108 states have internal predecessors, (24269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:37,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5109 states to 5109 states and 24269 transitions. [2021-06-05 03:48:37,062 INFO L78 Accepts]: Start accepts. Automaton has 5109 states and 24269 transitions. Word has length 29 [2021-06-05 03:48:37,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:37,062 INFO L482 AbstractCegarLoop]: Abstraction has 5109 states and 24269 transitions. [2021-06-05 03:48:37,062 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:37,062 INFO L276 IsEmpty]: Start isEmpty. Operand 5109 states and 24269 transitions. [2021-06-05 03:48:37,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:37,070 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:37,070 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:37,070 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1158 [2021-06-05 03:48:37,070 INFO L430 AbstractCegarLoop]: === Iteration 1160 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:37,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:37,071 INFO L82 PathProgramCache]: Analyzing trace with hash 1390154183, now seen corresponding path program 1155 times [2021-06-05 03:48:37,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:37,071 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106308572] [2021-06-05 03:48:37,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:37,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:37,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:37,199 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:37,199 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106308572] [2021-06-05 03:48:37,199 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106308572] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:37,199 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:37,199 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:37,199 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288154661] [2021-06-05 03:48:37,200 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:37,200 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:37,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:37,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:37,200 INFO L87 Difference]: Start difference. First operand 5109 states and 24269 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:37,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:37,315 INFO L93 Difference]: Finished difference Result 10525 states and 47084 transitions. [2021-06-05 03:48:37,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:37,316 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:37,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:37,341 INFO L225 Difference]: With dead ends: 10525 [2021-06-05 03:48:37,341 INFO L226 Difference]: Without dead ends: 10110 [2021-06-05 03:48:37,341 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 154.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:37,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10110 states. [2021-06-05 03:48:37,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10110 to 5157. [2021-06-05 03:48:37,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5157 states, 5156 states have (on average 4.741078355314197) internal successors, (24445), 5156 states have internal predecessors, (24445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:37,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5157 states to 5157 states and 24445 transitions. [2021-06-05 03:48:37,597 INFO L78 Accepts]: Start accepts. Automaton has 5157 states and 24445 transitions. Word has length 29 [2021-06-05 03:48:37,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:37,597 INFO L482 AbstractCegarLoop]: Abstraction has 5157 states and 24445 transitions. [2021-06-05 03:48:37,597 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:37,597 INFO L276 IsEmpty]: Start isEmpty. Operand 5157 states and 24445 transitions. [2021-06-05 03:48:37,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:37,606 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:37,606 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:37,606 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1159 [2021-06-05 03:48:37,606 INFO L430 AbstractCegarLoop]: === Iteration 1161 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:37,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:37,607 INFO L82 PathProgramCache]: Analyzing trace with hash -605965049, now seen corresponding path program 1156 times [2021-06-05 03:48:37,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:37,607 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816222201] [2021-06-05 03:48:37,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:37,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:37,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:37,731 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:37,731 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816222201] [2021-06-05 03:48:37,731 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816222201] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:37,731 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:37,731 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:37,731 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043767779] [2021-06-05 03:48:37,731 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:37,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:37,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:37,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:37,732 INFO L87 Difference]: Start difference. First operand 5157 states and 24445 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:37,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:37,849 INFO L93 Difference]: Finished difference Result 10585 states and 47300 transitions. [2021-06-05 03:48:37,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:37,849 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:37,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:37,875 INFO L225 Difference]: With dead ends: 10585 [2021-06-05 03:48:37,875 INFO L226 Difference]: Without dead ends: 10062 [2021-06-05 03:48:37,875 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 149.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:37,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10062 states. [2021-06-05 03:48:38,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10062 to 5109. [2021-06-05 03:48:38,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5109 states, 5108 states have (on average 4.74804228660924) internal successors, (24253), 5108 states have internal predecessors, (24253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:38,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5109 states to 5109 states and 24253 transitions. [2021-06-05 03:48:38,094 INFO L78 Accepts]: Start accepts. Automaton has 5109 states and 24253 transitions. Word has length 29 [2021-06-05 03:48:38,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:38,094 INFO L482 AbstractCegarLoop]: Abstraction has 5109 states and 24253 transitions. [2021-06-05 03:48:38,094 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:38,094 INFO L276 IsEmpty]: Start isEmpty. Operand 5109 states and 24253 transitions. [2021-06-05 03:48:38,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:38,102 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:38,102 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:38,102 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1160 [2021-06-05 03:48:38,102 INFO L430 AbstractCegarLoop]: === Iteration 1162 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:38,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:38,103 INFO L82 PathProgramCache]: Analyzing trace with hash -661760829, now seen corresponding path program 1157 times [2021-06-05 03:48:38,103 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:38,103 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301649229] [2021-06-05 03:48:38,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:38,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:38,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:38,228 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:38,228 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301649229] [2021-06-05 03:48:38,228 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301649229] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:38,228 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:38,228 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:38,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189636847] [2021-06-05 03:48:38,228 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:38,228 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:38,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:38,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:38,229 INFO L87 Difference]: Start difference. First operand 5109 states and 24253 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:38,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:38,337 INFO L93 Difference]: Finished difference Result 10525 states and 47068 transitions. [2021-06-05 03:48:38,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:38,337 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:38,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:38,363 INFO L225 Difference]: With dead ends: 10525 [2021-06-05 03:48:38,363 INFO L226 Difference]: Without dead ends: 10110 [2021-06-05 03:48:38,363 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 133.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:38,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10110 states. [2021-06-05 03:48:38,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10110 to 5157. [2021-06-05 03:48:38,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5157 states, 5156 states have (on average 4.737975174553918) internal successors, (24429), 5156 states have internal predecessors, (24429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:38,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5157 states to 5157 states and 24429 transitions. [2021-06-05 03:48:38,586 INFO L78 Accepts]: Start accepts. Automaton has 5157 states and 24429 transitions. Word has length 29 [2021-06-05 03:48:38,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:38,586 INFO L482 AbstractCegarLoop]: Abstraction has 5157 states and 24429 transitions. [2021-06-05 03:48:38,586 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:38,586 INFO L276 IsEmpty]: Start isEmpty. Operand 5157 states and 24429 transitions. [2021-06-05 03:48:38,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:38,595 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:38,595 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:38,595 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1161 [2021-06-05 03:48:38,595 INFO L430 AbstractCegarLoop]: === Iteration 1163 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:38,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:38,595 INFO L82 PathProgramCache]: Analyzing trace with hash 419301797, now seen corresponding path program 1158 times [2021-06-05 03:48:38,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:38,596 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569841965] [2021-06-05 03:48:38,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:38,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:38,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:38,720 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:38,720 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569841965] [2021-06-05 03:48:38,720 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569841965] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:38,720 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:38,720 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:38,720 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213585328] [2021-06-05 03:48:38,720 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:38,720 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:38,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:38,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:38,720 INFO L87 Difference]: Start difference. First operand 5157 states and 24429 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:38,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:38,837 INFO L93 Difference]: Finished difference Result 10585 states and 47284 transitions. [2021-06-05 03:48:38,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:38,837 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:38,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:38,862 INFO L225 Difference]: With dead ends: 10585 [2021-06-05 03:48:38,862 INFO L226 Difference]: Without dead ends: 10046 [2021-06-05 03:48:38,862 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 148.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:38,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10046 states. [2021-06-05 03:48:39,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10046 to 5093. [2021-06-05 03:48:39,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5093 states, 5092 states have (on average 4.751963864886096) internal successors, (24197), 5092 states have internal predecessors, (24197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:39,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5093 states to 5093 states and 24197 transitions. [2021-06-05 03:48:39,088 INFO L78 Accepts]: Start accepts. Automaton has 5093 states and 24197 transitions. Word has length 29 [2021-06-05 03:48:39,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:39,088 INFO L482 AbstractCegarLoop]: Abstraction has 5093 states and 24197 transitions. [2021-06-05 03:48:39,088 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:39,088 INFO L276 IsEmpty]: Start isEmpty. Operand 5093 states and 24197 transitions. [2021-06-05 03:48:39,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:39,097 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:39,097 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:39,097 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1162 [2021-06-05 03:48:39,097 INFO L430 AbstractCegarLoop]: === Iteration 1164 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:39,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:39,097 INFO L82 PathProgramCache]: Analyzing trace with hash -1022793529, now seen corresponding path program 1159 times [2021-06-05 03:48:39,097 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:39,097 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143944390] [2021-06-05 03:48:39,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:39,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:39,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:39,202 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:39,202 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143944390] [2021-06-05 03:48:39,203 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143944390] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:39,203 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:39,203 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:39,203 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308387877] [2021-06-05 03:48:39,203 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:39,203 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:39,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:39,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:39,203 INFO L87 Difference]: Start difference. First operand 5093 states and 24197 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:39,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:39,321 INFO L93 Difference]: Finished difference Result 10405 states and 46564 transitions. [2021-06-05 03:48:39,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:39,321 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:39,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:39,346 INFO L225 Difference]: With dead ends: 10405 [2021-06-05 03:48:39,346 INFO L226 Difference]: Without dead ends: 9990 [2021-06-05 03:48:39,346 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 130.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:39,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9990 states. [2021-06-05 03:48:39,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9990 to 5141. [2021-06-05 03:48:39,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5141 states, 5140 states have (on average 4.744941634241245) internal successors, (24389), 5140 states have internal predecessors, (24389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:39,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5141 states to 5141 states and 24389 transitions. [2021-06-05 03:48:39,563 INFO L78 Accepts]: Start accepts. Automaton has 5141 states and 24389 transitions. Word has length 29 [2021-06-05 03:48:39,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:39,564 INFO L482 AbstractCegarLoop]: Abstraction has 5141 states and 24389 transitions. [2021-06-05 03:48:39,564 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:39,564 INFO L276 IsEmpty]: Start isEmpty. Operand 5141 states and 24389 transitions. [2021-06-05 03:48:39,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:39,572 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:39,572 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:39,572 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1163 [2021-06-05 03:48:39,572 INFO L430 AbstractCegarLoop]: === Iteration 1165 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:39,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:39,572 INFO L82 PathProgramCache]: Analyzing trace with hash 870052773, now seen corresponding path program 1160 times [2021-06-05 03:48:39,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:39,572 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439997458] [2021-06-05 03:48:39,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:39,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:39,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:39,678 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:39,678 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439997458] [2021-06-05 03:48:39,678 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439997458] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:39,678 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:39,678 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:39,678 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937616113] [2021-06-05 03:48:39,678 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:39,678 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:39,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:39,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:39,679 INFO L87 Difference]: Start difference. First operand 5141 states and 24389 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:39,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:39,774 INFO L93 Difference]: Finished difference Result 10405 states and 46532 transitions. [2021-06-05 03:48:39,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:39,774 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:39,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:39,798 INFO L225 Difference]: With dead ends: 10405 [2021-06-05 03:48:39,798 INFO L226 Difference]: Without dead ends: 9958 [2021-06-05 03:48:39,798 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 113.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:39,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9958 states. [2021-06-05 03:48:39,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9958 to 5109. [2021-06-05 03:48:40,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5109 states, 5108 states have (on average 4.749608457321848) internal successors, (24261), 5108 states have internal predecessors, (24261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:40,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5109 states to 5109 states and 24261 transitions. [2021-06-05 03:48:40,015 INFO L78 Accepts]: Start accepts. Automaton has 5109 states and 24261 transitions. Word has length 29 [2021-06-05 03:48:40,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:40,015 INFO L482 AbstractCegarLoop]: Abstraction has 5109 states and 24261 transitions. [2021-06-05 03:48:40,015 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:40,016 INFO L276 IsEmpty]: Start isEmpty. Operand 5109 states and 24261 transitions. [2021-06-05 03:48:40,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:40,024 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:40,024 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:40,024 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1164 [2021-06-05 03:48:40,024 INFO L430 AbstractCegarLoop]: === Iteration 1166 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:40,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:40,024 INFO L82 PathProgramCache]: Analyzing trace with hash -632831801, now seen corresponding path program 1161 times [2021-06-05 03:48:40,024 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:40,024 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924938320] [2021-06-05 03:48:40,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:40,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:40,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:40,128 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:40,128 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924938320] [2021-06-05 03:48:40,128 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924938320] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:40,128 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:40,128 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:40,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786115330] [2021-06-05 03:48:40,128 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:40,128 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:40,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:40,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:40,128 INFO L87 Difference]: Start difference. First operand 5109 states and 24261 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:40,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:40,239 INFO L93 Difference]: Finished difference Result 10373 states and 46452 transitions. [2021-06-05 03:48:40,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:40,239 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:40,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:40,263 INFO L225 Difference]: With dead ends: 10373 [2021-06-05 03:48:40,264 INFO L226 Difference]: Without dead ends: 9958 [2021-06-05 03:48:40,264 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:40,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9958 states. [2021-06-05 03:48:40,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9958 to 5157. [2021-06-05 03:48:40,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5157 states, 5156 states have (on average 4.739526764934057) internal successors, (24437), 5156 states have internal predecessors, (24437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:40,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5157 states to 5157 states and 24437 transitions. [2021-06-05 03:48:40,480 INFO L78 Accepts]: Start accepts. Automaton has 5157 states and 24437 transitions. Word has length 29 [2021-06-05 03:48:40,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:40,480 INFO L482 AbstractCegarLoop]: Abstraction has 5157 states and 24437 transitions. [2021-06-05 03:48:40,480 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:40,480 INFO L276 IsEmpty]: Start isEmpty. Operand 5157 states and 24437 transitions. [2021-06-05 03:48:40,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:40,489 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:40,489 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:40,489 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1165 [2021-06-05 03:48:40,489 INFO L430 AbstractCegarLoop]: === Iteration 1167 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:40,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:40,489 INFO L82 PathProgramCache]: Analyzing trace with hash -2103892985, now seen corresponding path program 1162 times [2021-06-05 03:48:40,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:40,489 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44977784] [2021-06-05 03:48:40,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:40,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:40,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:40,593 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:40,593 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44977784] [2021-06-05 03:48:40,593 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44977784] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:40,593 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:40,593 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:40,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931866028] [2021-06-05 03:48:40,593 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:40,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:40,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:40,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:40,593 INFO L87 Difference]: Start difference. First operand 5157 states and 24437 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:40,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:40,709 INFO L93 Difference]: Finished difference Result 10101 states and 45443 transitions. [2021-06-05 03:48:40,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:40,709 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:40,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:40,733 INFO L225 Difference]: With dead ends: 10101 [2021-06-05 03:48:40,733 INFO L226 Difference]: Without dead ends: 9590 [2021-06-05 03:48:40,733 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:40,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9590 states. [2021-06-05 03:48:40,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9590 to 5109. [2021-06-05 03:48:40,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5109 states, 5108 states have (on average 4.746476115896633) internal successors, (24245), 5108 states have internal predecessors, (24245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:40,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5109 states to 5109 states and 24245 transitions. [2021-06-05 03:48:40,948 INFO L78 Accepts]: Start accepts. Automaton has 5109 states and 24245 transitions. Word has length 29 [2021-06-05 03:48:40,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:40,948 INFO L482 AbstractCegarLoop]: Abstraction has 5109 states and 24245 transitions. [2021-06-05 03:48:40,948 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:40,948 INFO L276 IsEmpty]: Start isEmpty. Operand 5109 states and 24245 transitions. [2021-06-05 03:48:40,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:40,957 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:40,957 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:40,957 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1166 [2021-06-05 03:48:40,957 INFO L430 AbstractCegarLoop]: === Iteration 1168 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:40,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:40,957 INFO L82 PathProgramCache]: Analyzing trace with hash -928344893, now seen corresponding path program 1163 times [2021-06-05 03:48:40,957 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:40,957 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434797159] [2021-06-05 03:48:40,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:40,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:41,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:41,061 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:41,061 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434797159] [2021-06-05 03:48:41,061 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434797159] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:41,061 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:41,062 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:41,062 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917545276] [2021-06-05 03:48:41,062 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:41,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:41,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:41,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:41,062 INFO L87 Difference]: Start difference. First operand 5109 states and 24245 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:41,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:41,161 INFO L93 Difference]: Finished difference Result 10373 states and 46436 transitions. [2021-06-05 03:48:41,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:41,162 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:41,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:41,187 INFO L225 Difference]: With dead ends: 10373 [2021-06-05 03:48:41,187 INFO L226 Difference]: Without dead ends: 9958 [2021-06-05 03:48:41,187 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 112.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:41,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9958 states. [2021-06-05 03:48:41,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9958 to 5157. [2021-06-05 03:48:41,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5157 states, 5156 states have (on average 4.736423584173778) internal successors, (24421), 5156 states have internal predecessors, (24421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:41,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5157 states to 5157 states and 24421 transitions. [2021-06-05 03:48:41,410 INFO L78 Accepts]: Start accepts. Automaton has 5157 states and 24421 transitions. Word has length 29 [2021-06-05 03:48:41,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:41,410 INFO L482 AbstractCegarLoop]: Abstraction has 5157 states and 24421 transitions. [2021-06-05 03:48:41,410 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:41,410 INFO L276 IsEmpty]: Start isEmpty. Operand 5157 states and 24421 transitions. [2021-06-05 03:48:41,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:41,419 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:41,419 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:41,419 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1167 [2021-06-05 03:48:41,420 INFO L430 AbstractCegarLoop]: === Iteration 1169 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:41,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:41,420 INFO L82 PathProgramCache]: Analyzing trace with hash 1871943845, now seen corresponding path program 1164 times [2021-06-05 03:48:41,420 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:41,420 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128683076] [2021-06-05 03:48:41,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:41,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:41,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:41,524 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:41,524 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128683076] [2021-06-05 03:48:41,524 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128683076] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:41,524 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:41,524 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:41,525 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638095238] [2021-06-05 03:48:41,525 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:41,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:41,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:41,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:41,525 INFO L87 Difference]: Start difference. First operand 5157 states and 24421 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:41,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:41,653 INFO L93 Difference]: Finished difference Result 10101 states and 45427 transitions. [2021-06-05 03:48:41,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:41,653 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:41,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:41,677 INFO L225 Difference]: With dead ends: 10101 [2021-06-05 03:48:41,677 INFO L226 Difference]: Without dead ends: 9574 [2021-06-05 03:48:41,677 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:41,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9574 states. [2021-06-05 03:48:41,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9574 to 5093. [2021-06-05 03:48:41,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5093 states, 5092 states have (on average 4.750392772977219) internal successors, (24189), 5092 states have internal predecessors, (24189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:41,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5093 states to 5093 states and 24189 transitions. [2021-06-05 03:48:41,890 INFO L78 Accepts]: Start accepts. Automaton has 5093 states and 24189 transitions. Word has length 29 [2021-06-05 03:48:41,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:41,890 INFO L482 AbstractCegarLoop]: Abstraction has 5093 states and 24189 transitions. [2021-06-05 03:48:41,890 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:41,890 INFO L276 IsEmpty]: Start isEmpty. Operand 5093 states and 24189 transitions. [2021-06-05 03:48:41,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:41,898 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:41,898 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:41,898 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1168 [2021-06-05 03:48:41,898 INFO L430 AbstractCegarLoop]: === Iteration 1170 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:41,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:41,898 INFO L82 PathProgramCache]: Analyzing trace with hash -1812179799, now seen corresponding path program 1165 times [2021-06-05 03:48:41,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:41,898 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550475026] [2021-06-05 03:48:41,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:41,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:42,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:42,015 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:42,015 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550475026] [2021-06-05 03:48:42,015 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550475026] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:42,015 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:42,015 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:42,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799933192] [2021-06-05 03:48:42,016 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:42,016 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:42,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:42,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:42,016 INFO L87 Difference]: Start difference. First operand 5093 states and 24189 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:42,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:42,129 INFO L93 Difference]: Finished difference Result 10573 states and 47332 transitions. [2021-06-05 03:48:42,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:42,129 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:42,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:42,154 INFO L225 Difference]: With dead ends: 10573 [2021-06-05 03:48:42,154 INFO L226 Difference]: Without dead ends: 10158 [2021-06-05 03:48:42,154 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 142.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:42,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10158 states. [2021-06-05 03:48:42,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10158 to 5165. [2021-06-05 03:48:42,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5165 states, 5164 states have (on average 4.742254066615027) internal successors, (24489), 5164 states have internal predecessors, (24489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:42,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5165 states to 5165 states and 24489 transitions. [2021-06-05 03:48:42,373 INFO L78 Accepts]: Start accepts. Automaton has 5165 states and 24489 transitions. Word has length 29 [2021-06-05 03:48:42,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:42,373 INFO L482 AbstractCegarLoop]: Abstraction has 5165 states and 24489 transitions. [2021-06-05 03:48:42,373 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:42,373 INFO L276 IsEmpty]: Start isEmpty. Operand 5165 states and 24489 transitions. [2021-06-05 03:48:42,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:42,382 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:42,382 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:42,382 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1169 [2021-06-05 03:48:42,382 INFO L430 AbstractCegarLoop]: === Iteration 1171 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:42,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:42,382 INFO L82 PathProgramCache]: Analyzing trace with hash 486668265, now seen corresponding path program 1166 times [2021-06-05 03:48:42,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:42,382 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172402506] [2021-06-05 03:48:42,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:42,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:42,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:42,498 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:42,498 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172402506] [2021-06-05 03:48:42,498 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172402506] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:42,498 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:42,498 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:42,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539661234] [2021-06-05 03:48:42,498 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:42,498 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:42,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:42,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:42,499 INFO L87 Difference]: Start difference. First operand 5165 states and 24489 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:42,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:42,609 INFO L93 Difference]: Finished difference Result 10633 states and 47548 transitions. [2021-06-05 03:48:42,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:42,609 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:42,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:42,634 INFO L225 Difference]: With dead ends: 10633 [2021-06-05 03:48:42,634 INFO L226 Difference]: Without dead ends: 10110 [2021-06-05 03:48:42,635 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 141.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:42,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10110 states. [2021-06-05 03:48:42,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10110 to 5117. [2021-06-05 03:48:42,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.747654417513683) internal successors, (24289), 5116 states have internal predecessors, (24289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:42,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24289 transitions. [2021-06-05 03:48:42,854 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24289 transitions. Word has length 29 [2021-06-05 03:48:42,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:42,854 INFO L482 AbstractCegarLoop]: Abstraction has 5117 states and 24289 transitions. [2021-06-05 03:48:42,854 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:42,854 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24289 transitions. [2021-06-05 03:48:42,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:42,862 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:42,862 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:42,862 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1170 [2021-06-05 03:48:42,862 INFO L430 AbstractCegarLoop]: === Iteration 1172 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:42,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:42,863 INFO L82 PathProgramCache]: Analyzing trace with hash 449774855, now seen corresponding path program 1167 times [2021-06-05 03:48:42,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:42,863 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925674782] [2021-06-05 03:48:42,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:42,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:42,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:42,965 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:42,965 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925674782] [2021-06-05 03:48:42,965 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925674782] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:42,965 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:42,965 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:42,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845614054] [2021-06-05 03:48:42,965 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:42,966 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:42,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:42,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:42,966 INFO L87 Difference]: Start difference. First operand 5117 states and 24289 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:43,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:43,080 INFO L93 Difference]: Finished difference Result 10465 states and 46868 transitions. [2021-06-05 03:48:43,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:43,080 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:43,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:43,105 INFO L225 Difference]: With dead ends: 10465 [2021-06-05 03:48:43,105 INFO L226 Difference]: Without dead ends: 10050 [2021-06-05 03:48:43,105 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:43,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10050 states. [2021-06-05 03:48:43,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10050 to 5165. [2021-06-05 03:48:43,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5165 states, 5164 states have (on average 4.737606506584044) internal successors, (24465), 5164 states have internal predecessors, (24465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:43,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5165 states to 5165 states and 24465 transitions. [2021-06-05 03:48:43,325 INFO L78 Accepts]: Start accepts. Automaton has 5165 states and 24465 transitions. Word has length 29 [2021-06-05 03:48:43,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:43,325 INFO L482 AbstractCegarLoop]: Abstraction has 5165 states and 24465 transitions. [2021-06-05 03:48:43,325 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:43,325 INFO L276 IsEmpty]: Start isEmpty. Operand 5165 states and 24465 transitions. [2021-06-05 03:48:43,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:43,334 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:43,334 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:43,334 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1171 [2021-06-05 03:48:43,334 INFO L430 AbstractCegarLoop]: === Iteration 1173 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:43,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:43,334 INFO L82 PathProgramCache]: Analyzing trace with hash -394291223, now seen corresponding path program 1168 times [2021-06-05 03:48:43,334 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:43,334 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623434185] [2021-06-05 03:48:43,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:43,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:43,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:43,438 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:43,438 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623434185] [2021-06-05 03:48:43,438 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623434185] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:43,438 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:43,438 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:43,438 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399543926] [2021-06-05 03:48:43,439 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:43,439 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:43,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:43,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:43,439 INFO L87 Difference]: Start difference. First operand 5165 states and 24465 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:43,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:43,550 INFO L93 Difference]: Finished difference Result 10193 states and 45859 transitions. [2021-06-05 03:48:43,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:43,550 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:43,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:43,574 INFO L225 Difference]: With dead ends: 10193 [2021-06-05 03:48:43,574 INFO L226 Difference]: Without dead ends: 9682 [2021-06-05 03:48:43,575 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:43,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9682 states. [2021-06-05 03:48:43,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9682 to 5117. [2021-06-05 03:48:43,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.742963252541048) internal successors, (24265), 5116 states have internal predecessors, (24265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:43,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24265 transitions. [2021-06-05 03:48:43,791 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24265 transitions. Word has length 29 [2021-06-05 03:48:43,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:43,791 INFO L482 AbstractCegarLoop]: Abstraction has 5117 states and 24265 transitions. [2021-06-05 03:48:43,791 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:43,791 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24265 transitions. [2021-06-05 03:48:43,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:43,800 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:43,800 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:43,800 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1172 [2021-06-05 03:48:43,800 INFO L430 AbstractCegarLoop]: === Iteration 1174 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:43,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:43,800 INFO L82 PathProgramCache]: Analyzing trace with hash -158889175, now seen corresponding path program 1169 times [2021-06-05 03:48:43,800 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:43,800 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959704754] [2021-06-05 03:48:43,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:43,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:43,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:43,902 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:43,902 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959704754] [2021-06-05 03:48:43,902 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959704754] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:43,902 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:43,902 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:43,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910755082] [2021-06-05 03:48:43,902 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:43,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:43,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:43,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:43,903 INFO L87 Difference]: Start difference. First operand 5117 states and 24265 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:44,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:44,012 INFO L93 Difference]: Finished difference Result 10549 states and 47232 transitions. [2021-06-05 03:48:44,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:44,012 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:44,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:44,037 INFO L225 Difference]: With dead ends: 10549 [2021-06-05 03:48:44,037 INFO L226 Difference]: Without dead ends: 10074 [2021-06-05 03:48:44,038 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 127.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:44,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10074 states. [2021-06-05 03:48:44,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10074 to 5189. [2021-06-05 03:48:44,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5189 states, 5188 states have (on average 4.730339244410177) internal successors, (24541), 5188 states have internal predecessors, (24541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:44,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5189 states to 5189 states and 24541 transitions. [2021-06-05 03:48:44,257 INFO L78 Accepts]: Start accepts. Automaton has 5189 states and 24541 transitions. Word has length 29 [2021-06-05 03:48:44,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:44,257 INFO L482 AbstractCegarLoop]: Abstraction has 5189 states and 24541 transitions. [2021-06-05 03:48:44,257 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:44,257 INFO L276 IsEmpty]: Start isEmpty. Operand 5189 states and 24541 transitions. [2021-06-05 03:48:44,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:44,266 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:44,266 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:44,266 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1173 [2021-06-05 03:48:44,266 INFO L430 AbstractCegarLoop]: === Iteration 1175 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:44,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:44,266 INFO L82 PathProgramCache]: Analyzing trace with hash -1551033721, now seen corresponding path program 1170 times [2021-06-05 03:48:44,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:44,266 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615205626] [2021-06-05 03:48:44,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:44,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:44,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:44,369 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:44,369 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615205626] [2021-06-05 03:48:44,370 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615205626] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:44,370 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:44,370 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:44,370 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978324265] [2021-06-05 03:48:44,370 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:44,370 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:44,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:44,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:44,370 INFO L87 Difference]: Start difference. First operand 5189 states and 24541 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:44,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:44,485 INFO L93 Difference]: Finished difference Result 10217 states and 45935 transitions. [2021-06-05 03:48:44,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:44,486 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:44,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:44,510 INFO L225 Difference]: With dead ends: 10217 [2021-06-05 03:48:44,510 INFO L226 Difference]: Without dead ends: 9658 [2021-06-05 03:48:44,510 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 129.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:44,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9658 states. [2021-06-05 03:48:44,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9658 to 5093. [2021-06-05 03:48:44,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5093 states, 5092 states have (on average 4.748821681068343) internal successors, (24181), 5092 states have internal predecessors, (24181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:44,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5093 states to 5093 states and 24181 transitions. [2021-06-05 03:48:44,726 INFO L78 Accepts]: Start accepts. Automaton has 5093 states and 24181 transitions. Word has length 29 [2021-06-05 03:48:44,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:44,726 INFO L482 AbstractCegarLoop]: Abstraction has 5093 states and 24181 transitions. [2021-06-05 03:48:44,726 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:44,726 INFO L276 IsEmpty]: Start isEmpty. Operand 5093 states and 24181 transitions. [2021-06-05 03:48:44,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:44,734 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:44,734 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:44,735 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1174 [2021-06-05 03:48:44,735 INFO L430 AbstractCegarLoop]: === Iteration 1176 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:44,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:44,735 INFO L82 PathProgramCache]: Analyzing trace with hash 1951469891, now seen corresponding path program 1171 times [2021-06-05 03:48:44,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:44,735 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391986776] [2021-06-05 03:48:44,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:44,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:44,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:44,850 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:44,850 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391986776] [2021-06-05 03:48:44,850 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391986776] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:44,850 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:44,850 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:44,851 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105327090] [2021-06-05 03:48:44,851 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:44,851 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:44,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:44,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:44,851 INFO L87 Difference]: Start difference. First operand 5093 states and 24181 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:44,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:44,950 INFO L93 Difference]: Finished difference Result 10573 states and 47324 transitions. [2021-06-05 03:48:44,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:44,950 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:44,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:44,975 INFO L225 Difference]: With dead ends: 10573 [2021-06-05 03:48:44,975 INFO L226 Difference]: Without dead ends: 10158 [2021-06-05 03:48:44,975 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 124.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:45,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10158 states. [2021-06-05 03:48:45,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10158 to 5165. [2021-06-05 03:48:45,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5165 states, 5164 states have (on average 4.740704879938033) internal successors, (24481), 5164 states have internal predecessors, (24481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:45,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5165 states to 5165 states and 24481 transitions. [2021-06-05 03:48:45,198 INFO L78 Accepts]: Start accepts. Automaton has 5165 states and 24481 transitions. Word has length 29 [2021-06-05 03:48:45,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:45,199 INFO L482 AbstractCegarLoop]: Abstraction has 5165 states and 24481 transitions. [2021-06-05 03:48:45,199 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:45,199 INFO L276 IsEmpty]: Start isEmpty. Operand 5165 states and 24481 transitions. [2021-06-05 03:48:45,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:45,207 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:45,207 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:45,207 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1175 [2021-06-05 03:48:45,207 INFO L430 AbstractCegarLoop]: === Iteration 1177 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:45,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:45,208 INFO L82 PathProgramCache]: Analyzing trace with hash -1262434779, now seen corresponding path program 1172 times [2021-06-05 03:48:45,208 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:45,208 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465554747] [2021-06-05 03:48:45,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:45,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:45,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:45,321 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:45,321 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465554747] [2021-06-05 03:48:45,321 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465554747] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:45,321 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:45,321 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:45,321 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999824359] [2021-06-05 03:48:45,321 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:45,321 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:45,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:45,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:45,322 INFO L87 Difference]: Start difference. First operand 5165 states and 24481 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:45,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:45,436 INFO L93 Difference]: Finished difference Result 10633 states and 47540 transitions. [2021-06-05 03:48:45,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:45,437 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:45,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:45,462 INFO L225 Difference]: With dead ends: 10633 [2021-06-05 03:48:45,462 INFO L226 Difference]: Without dead ends: 10110 [2021-06-05 03:48:45,462 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 139.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:45,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10110 states. [2021-06-05 03:48:45,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10110 to 5117. [2021-06-05 03:48:45,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.746090695856138) internal successors, (24281), 5116 states have internal predecessors, (24281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:45,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24281 transitions. [2021-06-05 03:48:45,680 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24281 transitions. Word has length 29 [2021-06-05 03:48:45,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:45,680 INFO L482 AbstractCegarLoop]: Abstraction has 5117 states and 24281 transitions. [2021-06-05 03:48:45,680 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:45,680 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24281 transitions. [2021-06-05 03:48:45,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:45,689 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:45,689 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:45,689 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1176 [2021-06-05 03:48:45,689 INFO L430 AbstractCegarLoop]: === Iteration 1178 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:45,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:45,689 INFO L82 PathProgramCache]: Analyzing trace with hash 777510181, now seen corresponding path program 1173 times [2021-06-05 03:48:45,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:45,689 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491114159] [2021-06-05 03:48:45,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:45,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:45,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:45,795 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:45,795 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491114159] [2021-06-05 03:48:45,795 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491114159] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:45,795 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:45,795 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:45,795 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713463468] [2021-06-05 03:48:45,795 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:45,795 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:45,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:45,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:45,795 INFO L87 Difference]: Start difference. First operand 5117 states and 24281 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:45,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:45,893 INFO L93 Difference]: Finished difference Result 10465 states and 46860 transitions. [2021-06-05 03:48:45,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:45,894 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:45,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:45,918 INFO L225 Difference]: With dead ends: 10465 [2021-06-05 03:48:45,919 INFO L226 Difference]: Without dead ends: 10050 [2021-06-05 03:48:45,919 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 113.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:46,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10050 states. [2021-06-05 03:48:46,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10050 to 5165. [2021-06-05 03:48:46,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5165 states, 5164 states have (on average 4.736057319907049) internal successors, (24457), 5164 states have internal predecessors, (24457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:46,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5165 states to 5165 states and 24457 transitions. [2021-06-05 03:48:46,142 INFO L78 Accepts]: Start accepts. Automaton has 5165 states and 24457 transitions. Word has length 29 [2021-06-05 03:48:46,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:46,142 INFO L482 AbstractCegarLoop]: Abstraction has 5165 states and 24457 transitions. [2021-06-05 03:48:46,143 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:46,143 INFO L276 IsEmpty]: Start isEmpty. Operand 5165 states and 24457 transitions. [2021-06-05 03:48:46,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:46,151 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:46,151 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:46,151 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1177 [2021-06-05 03:48:46,151 INFO L430 AbstractCegarLoop]: === Iteration 1179 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:46,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:46,152 INFO L82 PathProgramCache]: Analyzing trace with hash 827077925, now seen corresponding path program 1174 times [2021-06-05 03:48:46,152 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:46,152 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155137237] [2021-06-05 03:48:46,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:46,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:46,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:46,256 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:46,256 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155137237] [2021-06-05 03:48:46,256 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155137237] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:46,256 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:46,256 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:46,256 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062429071] [2021-06-05 03:48:46,256 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:46,256 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:46,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:46,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:46,256 INFO L87 Difference]: Start difference. First operand 5165 states and 24457 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:46,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:46,372 INFO L93 Difference]: Finished difference Result 10193 states and 45851 transitions. [2021-06-05 03:48:46,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:46,372 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:46,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:46,396 INFO L225 Difference]: With dead ends: 10193 [2021-06-05 03:48:46,396 INFO L226 Difference]: Without dead ends: 9682 [2021-06-05 03:48:46,397 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 129.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:46,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9682 states. [2021-06-05 03:48:46,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9682 to 5117. [2021-06-05 03:48:46,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.741399530883503) internal successors, (24257), 5116 states have internal predecessors, (24257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:46,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24257 transitions. [2021-06-05 03:48:46,616 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24257 transitions. Word has length 29 [2021-06-05 03:48:46,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:46,616 INFO L482 AbstractCegarLoop]: Abstraction has 5117 states and 24257 transitions. [2021-06-05 03:48:46,616 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:46,616 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24257 transitions. [2021-06-05 03:48:46,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:46,674 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:46,674 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:46,674 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1178 [2021-06-05 03:48:46,674 INFO L430 AbstractCegarLoop]: === Iteration 1180 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:46,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:46,675 INFO L82 PathProgramCache]: Analyzing trace with hash 1165515143, now seen corresponding path program 1175 times [2021-06-05 03:48:46,675 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:46,675 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920418620] [2021-06-05 03:48:46,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:46,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:46,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:46,776 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:46,776 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920418620] [2021-06-05 03:48:46,776 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920418620] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:46,776 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:46,776 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:46,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143121541] [2021-06-05 03:48:46,777 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:46,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:46,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:46,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:46,777 INFO L87 Difference]: Start difference. First operand 5117 states and 24257 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:46,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:46,906 INFO L93 Difference]: Finished difference Result 10549 states and 47224 transitions. [2021-06-05 03:48:46,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:46,907 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:46,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:46,932 INFO L225 Difference]: With dead ends: 10549 [2021-06-05 03:48:46,932 INFO L226 Difference]: Without dead ends: 10074 [2021-06-05 03:48:46,932 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 126.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:47,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10074 states. [2021-06-05 03:48:47,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10074 to 5189. [2021-06-05 03:48:47,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5189 states, 5188 states have (on average 4.728797224363917) internal successors, (24533), 5188 states have internal predecessors, (24533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:47,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5189 states to 5189 states and 24533 transitions. [2021-06-05 03:48:47,156 INFO L78 Accepts]: Start accepts. Automaton has 5189 states and 24533 transitions. Word has length 29 [2021-06-05 03:48:47,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:47,156 INFO L482 AbstractCegarLoop]: Abstraction has 5189 states and 24533 transitions. [2021-06-05 03:48:47,156 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:47,156 INFO L276 IsEmpty]: Start isEmpty. Operand 5189 states and 24533 transitions. [2021-06-05 03:48:47,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:47,165 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:47,165 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:47,165 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1179 [2021-06-05 03:48:47,165 INFO L430 AbstractCegarLoop]: === Iteration 1181 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:47,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:47,165 INFO L82 PathProgramCache]: Analyzing trace with hash -950564507, now seen corresponding path program 1176 times [2021-06-05 03:48:47,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:47,166 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941543672] [2021-06-05 03:48:47,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:47,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:47,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:47,268 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:47,268 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941543672] [2021-06-05 03:48:47,268 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941543672] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:47,268 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:47,268 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:47,268 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590540483] [2021-06-05 03:48:47,268 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:47,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:47,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:47,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:47,269 INFO L87 Difference]: Start difference. First operand 5189 states and 24533 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:47,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:47,407 INFO L93 Difference]: Finished difference Result 10217 states and 45927 transitions. [2021-06-05 03:48:47,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:47,407 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:47,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:47,431 INFO L225 Difference]: With dead ends: 10217 [2021-06-05 03:48:47,431 INFO L226 Difference]: Without dead ends: 9650 [2021-06-05 03:48:47,431 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 127.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:47,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9650 states. [2021-06-05 03:48:47,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9650 to 5085. [2021-06-05 03:48:47,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5085 states, 5084 states have (on average 4.751573564122738) internal successors, (24157), 5084 states have internal predecessors, (24157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:47,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5085 states to 5085 states and 24157 transitions. [2021-06-05 03:48:47,647 INFO L78 Accepts]: Start accepts. Automaton has 5085 states and 24157 transitions. Word has length 29 [2021-06-05 03:48:47,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:47,647 INFO L482 AbstractCegarLoop]: Abstraction has 5085 states and 24157 transitions. [2021-06-05 03:48:47,647 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:47,647 INFO L276 IsEmpty]: Start isEmpty. Operand 5085 states and 24157 transitions. [2021-06-05 03:48:47,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:47,656 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:47,656 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:47,656 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1180 [2021-06-05 03:48:47,656 INFO L430 AbstractCegarLoop]: === Iteration 1182 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:47,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:47,656 INFO L82 PathProgramCache]: Analyzing trace with hash 1793736225, now seen corresponding path program 1177 times [2021-06-05 03:48:47,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:47,656 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854955385] [2021-06-05 03:48:47,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:47,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:47,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:47,775 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:47,775 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854955385] [2021-06-05 03:48:47,775 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854955385] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:47,775 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:47,775 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:47,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886617894] [2021-06-05 03:48:47,775 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:47,775 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:47,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:47,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:47,776 INFO L87 Difference]: Start difference. First operand 5085 states and 24157 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:47,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:47,886 INFO L93 Difference]: Finished difference Result 11369 states and 50846 transitions. [2021-06-05 03:48:47,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:47,886 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:47,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:47,913 INFO L225 Difference]: With dead ends: 11369 [2021-06-05 03:48:47,913 INFO L226 Difference]: Without dead ends: 10827 [2021-06-05 03:48:47,913 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 126.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:48,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10827 states. [2021-06-05 03:48:48,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10827 to 5225. [2021-06-05 03:48:48,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5225 states, 5224 states have (on average 4.739854517611026) internal successors, (24761), 5224 states have internal predecessors, (24761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:48,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5225 states to 5225 states and 24761 transitions. [2021-06-05 03:48:48,142 INFO L78 Accepts]: Start accepts. Automaton has 5225 states and 24761 transitions. Word has length 29 [2021-06-05 03:48:48,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:48,142 INFO L482 AbstractCegarLoop]: Abstraction has 5225 states and 24761 transitions. [2021-06-05 03:48:48,142 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:48,142 INFO L276 IsEmpty]: Start isEmpty. Operand 5225 states and 24761 transitions. [2021-06-05 03:48:48,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:48,151 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:48,151 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:48,151 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1181 [2021-06-05 03:48:48,151 INFO L430 AbstractCegarLoop]: === Iteration 1183 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:48,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:48,152 INFO L82 PathProgramCache]: Analyzing trace with hash 1586928259, now seen corresponding path program 1178 times [2021-06-05 03:48:48,152 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:48,152 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926968066] [2021-06-05 03:48:48,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:48,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:48,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:48,271 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:48,271 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926968066] [2021-06-05 03:48:48,271 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926968066] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:48,271 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:48,271 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:48,271 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369706823] [2021-06-05 03:48:48,271 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:48,271 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:48,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:48,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:48,271 INFO L87 Difference]: Start difference. First operand 5225 states and 24761 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:48,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:48,367 INFO L93 Difference]: Finished difference Result 11242 states and 50239 transitions. [2021-06-05 03:48:48,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:48,367 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:48,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:48,394 INFO L225 Difference]: With dead ends: 11242 [2021-06-05 03:48:48,395 INFO L226 Difference]: Without dead ends: 10747 [2021-06-05 03:48:48,395 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 127.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:48,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10747 states. [2021-06-05 03:48:48,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10747 to 5145. [2021-06-05 03:48:48,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5145 states, 5144 states have (on average 4.749805598755832) internal successors, (24433), 5144 states have internal predecessors, (24433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:48,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5145 states to 5145 states and 24433 transitions. [2021-06-05 03:48:48,637 INFO L78 Accepts]: Start accepts. Automaton has 5145 states and 24433 transitions. Word has length 29 [2021-06-05 03:48:48,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:48,637 INFO L482 AbstractCegarLoop]: Abstraction has 5145 states and 24433 transitions. [2021-06-05 03:48:48,637 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:48,637 INFO L276 IsEmpty]: Start isEmpty. Operand 5145 states and 24433 transitions. [2021-06-05 03:48:48,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:48,646 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:48,646 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:48,646 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1182 [2021-06-05 03:48:48,646 INFO L430 AbstractCegarLoop]: === Iteration 1184 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:48,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:48,646 INFO L82 PathProgramCache]: Analyzing trace with hash 1312834179, now seen corresponding path program 1179 times [2021-06-05 03:48:48,646 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:48,646 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815947993] [2021-06-05 03:48:48,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:48,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:48,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:48,771 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:48,771 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815947993] [2021-06-05 03:48:48,771 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815947993] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:48,771 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:48,771 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:48,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398352773] [2021-06-05 03:48:48,771 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:48,771 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:48,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:48,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:48,772 INFO L87 Difference]: Start difference. First operand 5145 states and 24433 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:48,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:48,864 INFO L93 Difference]: Finished difference Result 11459 states and 51217 transitions. [2021-06-05 03:48:48,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:48,864 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:48,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:48,893 INFO L225 Difference]: With dead ends: 11459 [2021-06-05 03:48:48,894 INFO L226 Difference]: Without dead ends: 10917 [2021-06-05 03:48:48,894 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 129.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:49,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10917 states. [2021-06-05 03:48:49,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10917 to 5255. [2021-06-05 03:48:49,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5255 states, 5254 states have (on average 4.727445755614769) internal successors, (24838), 5254 states have internal predecessors, (24838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:49,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5255 states to 5255 states and 24838 transitions. [2021-06-05 03:48:49,121 INFO L78 Accepts]: Start accepts. Automaton has 5255 states and 24838 transitions. Word has length 29 [2021-06-05 03:48:49,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:49,122 INFO L482 AbstractCegarLoop]: Abstraction has 5255 states and 24838 transitions. [2021-06-05 03:48:49,122 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:49,122 INFO L276 IsEmpty]: Start isEmpty. Operand 5255 states and 24838 transitions. [2021-06-05 03:48:49,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:49,130 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:49,130 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:49,130 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1183 [2021-06-05 03:48:49,130 INFO L430 AbstractCegarLoop]: === Iteration 1185 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:49,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:49,131 INFO L82 PathProgramCache]: Analyzing trace with hash -1663282685, now seen corresponding path program 1180 times [2021-06-05 03:48:49,131 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:49,131 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920881649] [2021-06-05 03:48:49,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:49,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:49,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:49,242 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:49,242 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920881649] [2021-06-05 03:48:49,242 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920881649] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:49,242 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:49,242 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:49,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268606483] [2021-06-05 03:48:49,242 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:49,242 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:49,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:49,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:49,243 INFO L87 Difference]: Start difference. First operand 5255 states and 24838 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:49,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:49,354 INFO L93 Difference]: Finished difference Result 11392 states and 50844 transitions. [2021-06-05 03:48:49,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:49,354 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:49,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:49,381 INFO L225 Difference]: With dead ends: 11392 [2021-06-05 03:48:49,381 INFO L226 Difference]: Without dead ends: 10807 [2021-06-05 03:48:49,381 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 136.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:49,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10807 states. [2021-06-05 03:48:49,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10807 to 5145. [2021-06-05 03:48:49,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5145 states, 5144 states have (on average 4.742029548989113) internal successors, (24393), 5144 states have internal predecessors, (24393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:49,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5145 states to 5145 states and 24393 transitions. [2021-06-05 03:48:49,608 INFO L78 Accepts]: Start accepts. Automaton has 5145 states and 24393 transitions. Word has length 29 [2021-06-05 03:48:49,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:49,608 INFO L482 AbstractCegarLoop]: Abstraction has 5145 states and 24393 transitions. [2021-06-05 03:48:49,608 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:49,608 INFO L276 IsEmpty]: Start isEmpty. Operand 5145 states and 24393 transitions. [2021-06-05 03:48:49,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:49,616 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:49,616 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:49,617 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1184 [2021-06-05 03:48:49,617 INFO L430 AbstractCegarLoop]: === Iteration 1186 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:49,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:49,617 INFO L82 PathProgramCache]: Analyzing trace with hash -280089115, now seen corresponding path program 1181 times [2021-06-05 03:48:49,617 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:49,617 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048404736] [2021-06-05 03:48:49,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:49,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:49,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:49,738 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:49,738 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048404736] [2021-06-05 03:48:49,739 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048404736] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:49,739 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:49,739 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:49,739 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177249075] [2021-06-05 03:48:49,739 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:49,739 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:49,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:49,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:49,739 INFO L87 Difference]: Start difference. First operand 5145 states and 24393 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:49,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:49,836 INFO L93 Difference]: Finished difference Result 11143 states and 49832 transitions. [2021-06-05 03:48:49,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:49,837 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:49,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:49,863 INFO L225 Difference]: With dead ends: 11143 [2021-06-05 03:48:49,863 INFO L226 Difference]: Without dead ends: 10728 [2021-06-05 03:48:49,863 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 129.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:49,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10728 states. [2021-06-05 03:48:50,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10728 to 5193. [2021-06-05 03:48:50,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5193 states, 5192 states have (on average 4.7320878274268106) internal successors, (24569), 5192 states have internal predecessors, (24569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:50,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5193 states to 5193 states and 24569 transitions. [2021-06-05 03:48:50,093 INFO L78 Accepts]: Start accepts. Automaton has 5193 states and 24569 transitions. Word has length 29 [2021-06-05 03:48:50,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:50,093 INFO L482 AbstractCegarLoop]: Abstraction has 5193 states and 24569 transitions. [2021-06-05 03:48:50,093 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:50,094 INFO L276 IsEmpty]: Start isEmpty. Operand 5193 states and 24569 transitions. [2021-06-05 03:48:50,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:50,102 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:50,102 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:50,102 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1185 [2021-06-05 03:48:50,102 INFO L430 AbstractCegarLoop]: === Iteration 1187 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:50,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:50,102 INFO L82 PathProgramCache]: Analyzing trace with hash -1126886077, now seen corresponding path program 1182 times [2021-06-05 03:48:50,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:50,103 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010588959] [2021-06-05 03:48:50,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:50,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:50,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:50,221 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:50,222 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010588959] [2021-06-05 03:48:50,222 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010588959] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:50,222 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:50,222 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:50,222 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481101574] [2021-06-05 03:48:50,222 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:50,222 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:50,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:50,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:50,222 INFO L87 Difference]: Start difference. First operand 5193 states and 24569 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:50,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:50,334 INFO L93 Difference]: Finished difference Result 11203 states and 50048 transitions. [2021-06-05 03:48:50,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:50,335 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:50,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:50,361 INFO L225 Difference]: With dead ends: 11203 [2021-06-05 03:48:50,361 INFO L226 Difference]: Without dead ends: 10640 [2021-06-05 03:48:50,362 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 144.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:50,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10640 states. [2021-06-05 03:48:50,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10640 to 5105. [2021-06-05 03:48:50,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5105 states, 5104 states have (on average 4.750979623824452) internal successors, (24249), 5104 states have internal predecessors, (24249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:50,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 24249 transitions. [2021-06-05 03:48:50,587 INFO L78 Accepts]: Start accepts. Automaton has 5105 states and 24249 transitions. Word has length 29 [2021-06-05 03:48:50,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:50,587 INFO L482 AbstractCegarLoop]: Abstraction has 5105 states and 24249 transitions. [2021-06-05 03:48:50,587 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:50,587 INFO L276 IsEmpty]: Start isEmpty. Operand 5105 states and 24249 transitions. [2021-06-05 03:48:50,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:50,595 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:50,596 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:50,596 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1186 [2021-06-05 03:48:50,596 INFO L430 AbstractCegarLoop]: === Iteration 1188 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:50,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:50,596 INFO L82 PathProgramCache]: Analyzing trace with hash -1100113533, now seen corresponding path program 1183 times [2021-06-05 03:48:50,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:50,596 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65673009] [2021-06-05 03:48:50,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:50,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:50,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:50,713 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:50,713 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65673009] [2021-06-05 03:48:50,714 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65673009] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:50,714 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:50,714 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:50,714 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318326375] [2021-06-05 03:48:50,714 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:50,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:50,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:50,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:50,714 INFO L87 Difference]: Start difference. First operand 5105 states and 24249 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:50,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:50,807 INFO L93 Difference]: Finished difference Result 11271 states and 50395 transitions. [2021-06-05 03:48:50,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:50,807 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:50,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:50,834 INFO L225 Difference]: With dead ends: 11271 [2021-06-05 03:48:50,834 INFO L226 Difference]: Without dead ends: 10729 [2021-06-05 03:48:50,834 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 125.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:50,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10729 states. [2021-06-05 03:48:51,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10729 to 5225. [2021-06-05 03:48:51,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5225 states, 5224 states have (on average 4.736026033690658) internal successors, (24741), 5224 states have internal predecessors, (24741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:51,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5225 states to 5225 states and 24741 transitions. [2021-06-05 03:48:51,064 INFO L78 Accepts]: Start accepts. Automaton has 5225 states and 24741 transitions. Word has length 29 [2021-06-05 03:48:51,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:51,064 INFO L482 AbstractCegarLoop]: Abstraction has 5225 states and 24741 transitions. [2021-06-05 03:48:51,064 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:51,064 INFO L276 IsEmpty]: Start isEmpty. Operand 5225 states and 24741 transitions. [2021-06-05 03:48:51,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:51,073 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:51,073 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:51,073 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1187 [2021-06-05 03:48:51,073 INFO L430 AbstractCegarLoop]: === Iteration 1189 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:51,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:51,073 INFO L82 PathProgramCache]: Analyzing trace with hash -1306921499, now seen corresponding path program 1184 times [2021-06-05 03:48:51,073 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:51,073 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110187063] [2021-06-05 03:48:51,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:51,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:51,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:51,193 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:51,193 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110187063] [2021-06-05 03:48:51,193 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110187063] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:51,193 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:51,193 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:51,193 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622719042] [2021-06-05 03:48:51,193 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:51,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:51,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:51,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:51,193 INFO L87 Difference]: Start difference. First operand 5225 states and 24741 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:51,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:51,286 INFO L93 Difference]: Finished difference Result 11144 states and 49788 transitions. [2021-06-05 03:48:51,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:51,287 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:51,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:51,313 INFO L225 Difference]: With dead ends: 11144 [2021-06-05 03:48:51,314 INFO L226 Difference]: Without dead ends: 10649 [2021-06-05 03:48:51,314 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 126.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:51,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10649 states. [2021-06-05 03:48:51,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10649 to 5145. [2021-06-05 03:48:51,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5145 states, 5144 states have (on average 4.745917573872473) internal successors, (24413), 5144 states have internal predecessors, (24413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:51,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5145 states to 5145 states and 24413 transitions. [2021-06-05 03:48:51,539 INFO L78 Accepts]: Start accepts. Automaton has 5145 states and 24413 transitions. Word has length 29 [2021-06-05 03:48:51,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:51,539 INFO L482 AbstractCegarLoop]: Abstraction has 5145 states and 24413 transitions. [2021-06-05 03:48:51,539 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:51,540 INFO L276 IsEmpty]: Start isEmpty. Operand 5145 states and 24413 transitions. [2021-06-05 03:48:51,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:51,548 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:51,548 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:51,548 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1188 [2021-06-05 03:48:51,548 INFO L430 AbstractCegarLoop]: === Iteration 1190 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:51,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:51,548 INFO L82 PathProgramCache]: Analyzing trace with hash -710151805, now seen corresponding path program 1185 times [2021-06-05 03:48:51,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:51,548 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942306545] [2021-06-05 03:48:51,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:51,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:51,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:51,671 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:51,671 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942306545] [2021-06-05 03:48:51,671 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942306545] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:51,671 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:51,671 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:51,671 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021259738] [2021-06-05 03:48:51,671 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:51,671 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:51,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:51,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:51,671 INFO L87 Difference]: Start difference. First operand 5145 states and 24413 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:51,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:51,775 INFO L93 Difference]: Finished difference Result 11120 states and 49776 transitions. [2021-06-05 03:48:51,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:51,775 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:51,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:51,802 INFO L225 Difference]: With dead ends: 11120 [2021-06-05 03:48:51,802 INFO L226 Difference]: Without dead ends: 10578 [2021-06-05 03:48:51,803 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 130.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:51,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10578 states. [2021-06-05 03:48:52,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10578 to 5249. [2021-06-05 03:48:52,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5249 states, 5248 states have (on average 4.725800304878049) internal successors, (24801), 5248 states have internal predecessors, (24801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:52,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5249 states to 5249 states and 24801 transitions. [2021-06-05 03:48:52,031 INFO L78 Accepts]: Start accepts. Automaton has 5249 states and 24801 transitions. Word has length 29 [2021-06-05 03:48:52,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:52,031 INFO L482 AbstractCegarLoop]: Abstraction has 5249 states and 24801 transitions. [2021-06-05 03:48:52,031 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:52,031 INFO L276 IsEmpty]: Start isEmpty. Operand 5249 states and 24801 transitions. [2021-06-05 03:48:52,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:52,040 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:52,040 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:52,040 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1189 [2021-06-05 03:48:52,040 INFO L430 AbstractCegarLoop]: === Iteration 1191 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:52,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:52,040 INFO L82 PathProgramCache]: Analyzing trace with hash -210640637, now seen corresponding path program 1186 times [2021-06-05 03:48:52,040 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:52,041 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010952232] [2021-06-05 03:48:52,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:52,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:52,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:52,160 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:52,160 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010952232] [2021-06-05 03:48:52,160 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010952232] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:52,160 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:52,160 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:52,161 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142748169] [2021-06-05 03:48:52,161 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:52,161 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:52,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:52,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:52,161 INFO L87 Difference]: Start difference. First operand 5249 states and 24801 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:52,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:52,270 INFO L93 Difference]: Finished difference Result 10721 states and 48184 transitions. [2021-06-05 03:48:52,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:52,270 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:52,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:52,295 INFO L225 Difference]: With dead ends: 10721 [2021-06-05 03:48:52,296 INFO L226 Difference]: Without dead ends: 10154 [2021-06-05 03:48:52,296 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 144.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:52,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10154 states. [2021-06-05 03:48:52,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10154 to 5145. [2021-06-05 03:48:52,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5145 states, 5144 states have (on average 4.738141524105754) internal successors, (24373), 5144 states have internal predecessors, (24373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:52,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5145 states to 5145 states and 24373 transitions. [2021-06-05 03:48:52,519 INFO L78 Accepts]: Start accepts. Automaton has 5145 states and 24373 transitions. Word has length 29 [2021-06-05 03:48:52,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:52,519 INFO L482 AbstractCegarLoop]: Abstraction has 5145 states and 24373 transitions. [2021-06-05 03:48:52,519 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:52,520 INFO L276 IsEmpty]: Start isEmpty. Operand 5145 states and 24373 transitions. [2021-06-05 03:48:52,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:52,528 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:52,528 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:52,528 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1190 [2021-06-05 03:48:52,528 INFO L430 AbstractCegarLoop]: === Iteration 1192 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:52,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:52,529 INFO L82 PathProgramCache]: Analyzing trace with hash 1991892197, now seen corresponding path program 1187 times [2021-06-05 03:48:52,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:52,529 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426065494] [2021-06-05 03:48:52,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:52,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:52,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:52,640 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:52,640 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426065494] [2021-06-05 03:48:52,640 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426065494] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:52,640 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:52,640 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:52,640 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405312677] [2021-06-05 03:48:52,640 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:52,640 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:52,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:52,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:52,640 INFO L87 Difference]: Start difference. First operand 5145 states and 24373 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:52,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:52,738 INFO L93 Difference]: Finished difference Result 10937 states and 48941 transitions. [2021-06-05 03:48:52,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:52,738 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:52,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:52,764 INFO L225 Difference]: With dead ends: 10937 [2021-06-05 03:48:52,764 INFO L226 Difference]: Without dead ends: 10522 [2021-06-05 03:48:52,764 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 119.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:52,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10522 states. [2021-06-05 03:48:52,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10522 to 5193. [2021-06-05 03:48:52,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5193 states, 5192 states have (on average 4.728235747303544) internal successors, (24549), 5192 states have internal predecessors, (24549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:52,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5193 states to 5193 states and 24549 transitions. [2021-06-05 03:48:52,995 INFO L78 Accepts]: Start accepts. Automaton has 5193 states and 24549 transitions. Word has length 29 [2021-06-05 03:48:52,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:52,995 INFO L482 AbstractCegarLoop]: Abstraction has 5193 states and 24549 transitions. [2021-06-05 03:48:52,995 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:52,995 INFO L276 IsEmpty]: Start isEmpty. Operand 5193 states and 24549 transitions. [2021-06-05 03:48:53,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:53,004 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:53,004 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:53,004 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1191 [2021-06-05 03:48:53,004 INFO L430 AbstractCegarLoop]: === Iteration 1193 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:53,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:53,004 INFO L82 PathProgramCache]: Analyzing trace with hash -1393470141, now seen corresponding path program 1188 times [2021-06-05 03:48:53,004 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:53,004 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463519551] [2021-06-05 03:48:53,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:53,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:53,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:53,115 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:53,115 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463519551] [2021-06-05 03:48:53,115 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463519551] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:53,115 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:53,115 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:53,115 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879597651] [2021-06-05 03:48:53,115 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:53,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:53,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:53,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:53,116 INFO L87 Difference]: Start difference. First operand 5193 states and 24549 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:53,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:53,240 INFO L93 Difference]: Finished difference Result 10665 states and 47932 transitions. [2021-06-05 03:48:53,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:53,240 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:53,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:53,265 INFO L225 Difference]: With dead ends: 10665 [2021-06-05 03:48:53,265 INFO L226 Difference]: Without dead ends: 10114 [2021-06-05 03:48:53,265 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 134.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:53,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10114 states. [2021-06-05 03:48:53,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10114 to 5105. [2021-06-05 03:48:53,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5105 states, 5104 states have (on average 4.747061128526646) internal successors, (24229), 5104 states have internal predecessors, (24229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:53,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 24229 transitions. [2021-06-05 03:48:53,489 INFO L78 Accepts]: Start accepts. Automaton has 5105 states and 24229 transitions. Word has length 29 [2021-06-05 03:48:53,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:53,489 INFO L482 AbstractCegarLoop]: Abstraction has 5105 states and 24229 transitions. [2021-06-05 03:48:53,489 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:53,489 INFO L276 IsEmpty]: Start isEmpty. Operand 5105 states and 24229 transitions. [2021-06-05 03:48:53,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:53,498 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:53,498 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:53,498 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1192 [2021-06-05 03:48:53,498 INFO L430 AbstractCegarLoop]: === Iteration 1194 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:53,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:53,498 INFO L82 PathProgramCache]: Analyzing trace with hash -1889499803, now seen corresponding path program 1189 times [2021-06-05 03:48:53,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:53,498 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067244036] [2021-06-05 03:48:53,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:53,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:53,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:53,603 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:53,603 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067244036] [2021-06-05 03:48:53,603 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067244036] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:53,603 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:53,603 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:53,603 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113415854] [2021-06-05 03:48:53,603 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:53,603 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:53,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:53,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:53,603 INFO L87 Difference]: Start difference. First operand 5105 states and 24229 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:53,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:53,704 INFO L93 Difference]: Finished difference Result 11457 states and 51242 transitions. [2021-06-05 03:48:53,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:53,705 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:53,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:53,732 INFO L225 Difference]: With dead ends: 11457 [2021-06-05 03:48:53,733 INFO L226 Difference]: Without dead ends: 10915 [2021-06-05 03:48:53,733 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 113.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:53,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10915 states. [2021-06-05 03:48:53,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10915 to 5267. [2021-06-05 03:48:53,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5267 states, 5266 states have (on average 4.729586023547284) internal successors, (24906), 5266 states have internal predecessors, (24906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:53,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5267 states to 5267 states and 24906 transitions. [2021-06-05 03:48:53,964 INFO L78 Accepts]: Start accepts. Automaton has 5267 states and 24906 transitions. Word has length 29 [2021-06-05 03:48:53,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:53,964 INFO L482 AbstractCegarLoop]: Abstraction has 5267 states and 24906 transitions. [2021-06-05 03:48:53,964 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:53,964 INFO L276 IsEmpty]: Start isEmpty. Operand 5267 states and 24906 transitions. [2021-06-05 03:48:53,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:53,973 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:53,973 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:53,974 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1193 [2021-06-05 03:48:53,974 INFO L430 AbstractCegarLoop]: === Iteration 1195 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:53,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:53,974 INFO L82 PathProgramCache]: Analyzing trace with hash -570649371, now seen corresponding path program 1190 times [2021-06-05 03:48:53,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:53,974 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491733586] [2021-06-05 03:48:53,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:53,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:54,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:54,079 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:54,079 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491733586] [2021-06-05 03:48:54,079 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491733586] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:54,079 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:54,079 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:54,079 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9976147] [2021-06-05 03:48:54,080 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:54,080 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:54,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:54,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:54,080 INFO L87 Difference]: Start difference. First operand 5267 states and 24906 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:54,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:54,190 INFO L93 Difference]: Finished difference Result 11390 states and 50869 transitions. [2021-06-05 03:48:54,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:54,190 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:54,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:54,217 INFO L225 Difference]: With dead ends: 11390 [2021-06-05 03:48:54,217 INFO L226 Difference]: Without dead ends: 10805 [2021-06-05 03:48:54,217 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 131.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:54,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10805 states. [2021-06-05 03:48:54,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10805 to 5157. [2021-06-05 03:48:54,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5157 states, 5156 states have (on average 4.741854150504267) internal successors, (24449), 5156 states have internal predecessors, (24449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:54,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5157 states to 5157 states and 24449 transitions. [2021-06-05 03:48:54,444 INFO L78 Accepts]: Start accepts. Automaton has 5157 states and 24449 transitions. Word has length 29 [2021-06-05 03:48:54,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:54,444 INFO L482 AbstractCegarLoop]: Abstraction has 5157 states and 24449 transitions. [2021-06-05 03:48:54,444 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:54,444 INFO L276 IsEmpty]: Start isEmpty. Operand 5157 states and 24449 transitions. [2021-06-05 03:48:54,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:54,453 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:54,454 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:54,454 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1194 [2021-06-05 03:48:54,454 INFO L430 AbstractCegarLoop]: === Iteration 1196 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:54,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:54,454 INFO L82 PathProgramCache]: Analyzing trace with hash 372454851, now seen corresponding path program 1191 times [2021-06-05 03:48:54,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:54,454 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650749117] [2021-06-05 03:48:54,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:54,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:54,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:54,570 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:54,570 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650749117] [2021-06-05 03:48:54,571 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650749117] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:54,571 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:54,571 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:54,571 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213279587] [2021-06-05 03:48:54,571 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:54,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:54,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:54,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:54,571 INFO L87 Difference]: Start difference. First operand 5157 states and 24449 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:54,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:54,671 INFO L93 Difference]: Finished difference Result 11216 states and 50200 transitions. [2021-06-05 03:48:54,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:54,671 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:54,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:54,698 INFO L225 Difference]: With dead ends: 11216 [2021-06-05 03:48:54,698 INFO L226 Difference]: Without dead ends: 10674 [2021-06-05 03:48:54,699 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 125.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:54,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10674 states. [2021-06-05 03:48:54,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10674 to 5261. [2021-06-05 03:48:54,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5261 states, 5260 states have (on average 4.721863117870722) internal successors, (24837), 5260 states have internal predecessors, (24837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:54,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5261 states to 5261 states and 24837 transitions. [2021-06-05 03:48:54,931 INFO L78 Accepts]: Start accepts. Automaton has 5261 states and 24837 transitions. Word has length 29 [2021-06-05 03:48:54,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:54,931 INFO L482 AbstractCegarLoop]: Abstraction has 5261 states and 24837 transitions. [2021-06-05 03:48:54,931 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:54,932 INFO L276 IsEmpty]: Start isEmpty. Operand 5261 states and 24837 transitions. [2021-06-05 03:48:54,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:54,940 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:54,940 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:54,941 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1195 [2021-06-05 03:48:54,941 INFO L430 AbstractCegarLoop]: === Iteration 1197 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:54,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:54,941 INFO L82 PathProgramCache]: Analyzing trace with hash 1498961125, now seen corresponding path program 1192 times [2021-06-05 03:48:54,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:54,941 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168330860] [2021-06-05 03:48:54,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:54,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:55,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:55,056 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:55,056 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168330860] [2021-06-05 03:48:55,056 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168330860] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:55,056 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:55,056 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:55,056 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937069966] [2021-06-05 03:48:55,056 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:55,056 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:55,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:55,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:55,056 INFO L87 Difference]: Start difference. First operand 5261 states and 24837 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:55,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:55,172 INFO L93 Difference]: Finished difference Result 10817 states and 48608 transitions. [2021-06-05 03:48:55,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:55,172 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:55,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:55,198 INFO L225 Difference]: With dead ends: 10817 [2021-06-05 03:48:55,198 INFO L226 Difference]: Without dead ends: 10250 [2021-06-05 03:48:55,199 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 140.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:55,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10250 states. [2021-06-05 03:48:55,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10250 to 5157. [2021-06-05 03:48:55,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5157 states, 5156 states have (on average 4.7317688130333595) internal successors, (24397), 5156 states have internal predecessors, (24397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:55,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5157 states to 5157 states and 24397 transitions. [2021-06-05 03:48:55,423 INFO L78 Accepts]: Start accepts. Automaton has 5157 states and 24397 transitions. Word has length 29 [2021-06-05 03:48:55,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:55,423 INFO L482 AbstractCegarLoop]: Abstraction has 5157 states and 24397 transitions. [2021-06-05 03:48:55,423 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:55,423 INFO L276 IsEmpty]: Start isEmpty. Operand 5157 states and 24397 transitions. [2021-06-05 03:48:55,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:55,431 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:55,431 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:55,431 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1196 [2021-06-05 03:48:55,431 INFO L430 AbstractCegarLoop]: === Iteration 1198 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:55,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:55,432 INFO L82 PathProgramCache]: Analyzing trace with hash -1576754075, now seen corresponding path program 1193 times [2021-06-05 03:48:55,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:55,432 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969717455] [2021-06-05 03:48:55,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:55,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:55,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:55,534 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:55,534 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969717455] [2021-06-05 03:48:55,534 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969717455] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:55,534 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:55,534 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:55,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019809761] [2021-06-05 03:48:55,534 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:55,534 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:55,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:55,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:55,534 INFO L87 Difference]: Start difference. First operand 5157 states and 24397 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:55,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:55,650 INFO L93 Difference]: Finished difference Result 11117 states and 49741 transitions. [2021-06-05 03:48:55,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:55,650 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:55,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:55,678 INFO L225 Difference]: With dead ends: 11117 [2021-06-05 03:48:55,678 INFO L226 Difference]: Without dead ends: 10642 [2021-06-05 03:48:55,678 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:55,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10642 states. [2021-06-05 03:48:55,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10642 to 5229. [2021-06-05 03:48:55,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5229 states, 5228 states have (on average 4.719395562356541) internal successors, (24673), 5228 states have internal predecessors, (24673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:55,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5229 states to 5229 states and 24673 transitions. [2021-06-05 03:48:55,905 INFO L78 Accepts]: Start accepts. Automaton has 5229 states and 24673 transitions. Word has length 29 [2021-06-05 03:48:55,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:55,905 INFO L482 AbstractCegarLoop]: Abstraction has 5229 states and 24673 transitions. [2021-06-05 03:48:55,906 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:55,906 INFO L276 IsEmpty]: Start isEmpty. Operand 5229 states and 24673 transitions. [2021-06-05 03:48:55,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:55,914 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:55,914 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:55,914 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1197 [2021-06-05 03:48:55,914 INFO L430 AbstractCegarLoop]: === Iteration 1199 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:55,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:55,915 INFO L82 PathProgramCache]: Analyzing trace with hash 602133571, now seen corresponding path program 1194 times [2021-06-05 03:48:55,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:55,915 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153651273] [2021-06-05 03:48:55,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:55,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:56,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:56,097 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:56,097 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153651273] [2021-06-05 03:48:56,097 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153651273] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:56,097 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:56,097 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:56,097 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131473919] [2021-06-05 03:48:56,097 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:56,097 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:56,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:56,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:56,097 INFO L87 Difference]: Start difference. First operand 5229 states and 24673 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:56,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:56,211 INFO L93 Difference]: Finished difference Result 10785 states and 48444 transitions. [2021-06-05 03:48:56,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:56,211 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:56,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:56,238 INFO L225 Difference]: With dead ends: 10785 [2021-06-05 03:48:56,238 INFO L226 Difference]: Without dead ends: 10198 [2021-06-05 03:48:56,238 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 138.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:56,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10198 states. [2021-06-05 03:48:56,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10198 to 5105. [2021-06-05 03:48:56,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5105 states, 5104 states have (on average 4.74314263322884) internal successors, (24209), 5104 states have internal predecessors, (24209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:56,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 24209 transitions. [2021-06-05 03:48:56,464 INFO L78 Accepts]: Start accepts. Automaton has 5105 states and 24209 transitions. Word has length 29 [2021-06-05 03:48:56,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:56,464 INFO L482 AbstractCegarLoop]: Abstraction has 5105 states and 24209 transitions. [2021-06-05 03:48:56,464 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:56,464 INFO L276 IsEmpty]: Start isEmpty. Operand 5105 states and 24209 transitions. [2021-06-05 03:48:56,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:56,472 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:56,472 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:56,473 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1198 [2021-06-05 03:48:56,473 INFO L430 AbstractCegarLoop]: === Iteration 1200 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:56,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:56,473 INFO L82 PathProgramCache]: Analyzing trace with hash 195575751, now seen corresponding path program 1195 times [2021-06-05 03:48:56,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:56,473 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342127195] [2021-06-05 03:48:56,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:56,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:56,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:56,606 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:56,606 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342127195] [2021-06-05 03:48:56,606 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342127195] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:56,606 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:56,606 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:56,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732107233] [2021-06-05 03:48:56,607 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:56,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:56,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:56,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:56,607 INFO L87 Difference]: Start difference. First operand 5105 states and 24209 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:56,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:56,714 INFO L93 Difference]: Finished difference Result 10930 states and 48934 transitions. [2021-06-05 03:48:56,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:56,715 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:56,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:56,741 INFO L225 Difference]: With dead ends: 10930 [2021-06-05 03:48:56,741 INFO L226 Difference]: Without dead ends: 10515 [2021-06-05 03:48:56,741 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 135.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:56,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10515 states. [2021-06-05 03:48:56,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10515 to 5177. [2021-06-05 03:48:56,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5177 states, 5176 states have (on average 4.735123647604327) internal successors, (24509), 5176 states have internal predecessors, (24509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:56,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5177 states to 5177 states and 24509 transitions. [2021-06-05 03:48:56,971 INFO L78 Accepts]: Start accepts. Automaton has 5177 states and 24509 transitions. Word has length 29 [2021-06-05 03:48:56,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:56,971 INFO L482 AbstractCegarLoop]: Abstraction has 5177 states and 24509 transitions. [2021-06-05 03:48:56,971 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:56,971 INFO L276 IsEmpty]: Start isEmpty. Operand 5177 states and 24509 transitions. [2021-06-05 03:48:56,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:56,979 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:56,980 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:56,980 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1199 [2021-06-05 03:48:56,980 INFO L430 AbstractCegarLoop]: === Iteration 1201 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:56,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:56,980 INFO L82 PathProgramCache]: Analyzing trace with hash -651221211, now seen corresponding path program 1196 times [2021-06-05 03:48:56,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:56,980 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692925830] [2021-06-05 03:48:56,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:56,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:57,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:57,109 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:57,109 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692925830] [2021-06-05 03:48:57,109 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692925830] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:57,109 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:57,109 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:57,109 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900261785] [2021-06-05 03:48:57,109 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:57,109 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:57,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:57,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:57,109 INFO L87 Difference]: Start difference. First operand 5177 states and 24509 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:57,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:57,234 INFO L93 Difference]: Finished difference Result 10990 states and 49150 transitions. [2021-06-05 03:48:57,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:57,234 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:57,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:57,262 INFO L225 Difference]: With dead ends: 10990 [2021-06-05 03:48:57,262 INFO L226 Difference]: Without dead ends: 10467 [2021-06-05 03:48:57,262 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 140.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:57,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10467 states. [2021-06-05 03:48:57,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10467 to 5129. [2021-06-05 03:48:57,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5129 states, 5128 states have (on average 4.7404446177847115) internal successors, (24309), 5128 states have internal predecessors, (24309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:57,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5129 states to 5129 states and 24309 transitions. [2021-06-05 03:48:57,485 INFO L78 Accepts]: Start accepts. Automaton has 5129 states and 24309 transitions. Word has length 29 [2021-06-05 03:48:57,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:57,485 INFO L482 AbstractCegarLoop]: Abstraction has 5129 states and 24309 transitions. [2021-06-05 03:48:57,485 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:57,485 INFO L276 IsEmpty]: Start isEmpty. Operand 5129 states and 24309 transitions. [2021-06-05 03:48:57,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:57,494 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:57,494 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:57,494 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1200 [2021-06-05 03:48:57,494 INFO L430 AbstractCegarLoop]: === Iteration 1202 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:57,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:57,494 INFO L82 PathProgramCache]: Analyzing trace with hash -1837436891, now seen corresponding path program 1197 times [2021-06-05 03:48:57,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:57,494 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580938322] [2021-06-05 03:48:57,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:57,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:57,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:57,598 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:57,598 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580938322] [2021-06-05 03:48:57,598 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580938322] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:57,598 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:57,598 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:57,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770019024] [2021-06-05 03:48:57,598 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:57,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:57,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:57,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:57,598 INFO L87 Difference]: Start difference. First operand 5129 states and 24309 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:57,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:57,698 INFO L93 Difference]: Finished difference Result 10822 states and 48470 transitions. [2021-06-05 03:48:57,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:57,698 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:57,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:57,724 INFO L225 Difference]: With dead ends: 10822 [2021-06-05 03:48:57,724 INFO L226 Difference]: Without dead ends: 10407 [2021-06-05 03:48:57,724 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 111.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:57,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10407 states. [2021-06-05 03:48:57,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10407 to 5177. [2021-06-05 03:48:57,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5177 states, 5176 states have (on average 4.73048686244204) internal successors, (24485), 5176 states have internal predecessors, (24485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:57,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5177 states to 5177 states and 24485 transitions. [2021-06-05 03:48:57,951 INFO L78 Accepts]: Start accepts. Automaton has 5177 states and 24485 transitions. Word has length 29 [2021-06-05 03:48:57,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:57,951 INFO L482 AbstractCegarLoop]: Abstraction has 5177 states and 24485 transitions. [2021-06-05 03:48:57,951 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:57,951 INFO L276 IsEmpty]: Start isEmpty. Operand 5177 states and 24485 transitions. [2021-06-05 03:48:57,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:57,960 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:57,960 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:57,960 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1201 [2021-06-05 03:48:57,960 INFO L430 AbstractCegarLoop]: === Iteration 1203 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:57,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:57,960 INFO L82 PathProgramCache]: Analyzing trace with hash -300836827, now seen corresponding path program 1198 times [2021-06-05 03:48:57,960 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:57,960 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067738421] [2021-06-05 03:48:57,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:57,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:58,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:58,063 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:58,063 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067738421] [2021-06-05 03:48:58,063 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067738421] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:58,063 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:58,063 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:58,063 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113273917] [2021-06-05 03:48:58,063 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:58,063 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:58,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:58,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:58,063 INFO L87 Difference]: Start difference. First operand 5177 states and 24485 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:58,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:58,183 INFO L93 Difference]: Finished difference Result 10550 states and 47461 transitions. [2021-06-05 03:48:58,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:58,184 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:58,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:58,209 INFO L225 Difference]: With dead ends: 10550 [2021-06-05 03:48:58,209 INFO L226 Difference]: Without dead ends: 10039 [2021-06-05 03:48:58,209 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 126.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:58,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10039 states. [2021-06-05 03:48:58,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10039 to 5129. [2021-06-05 03:48:58,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5129 states, 5128 states have (on average 4.735764430577223) internal successors, (24285), 5128 states have internal predecessors, (24285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:58,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5129 states to 5129 states and 24285 transitions. [2021-06-05 03:48:58,430 INFO L78 Accepts]: Start accepts. Automaton has 5129 states and 24285 transitions. Word has length 29 [2021-06-05 03:48:58,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:58,430 INFO L482 AbstractCegarLoop]: Abstraction has 5129 states and 24285 transitions. [2021-06-05 03:48:58,430 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:58,430 INFO L276 IsEmpty]: Start isEmpty. Operand 5129 states and 24285 transitions. [2021-06-05 03:48:58,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:58,438 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:58,438 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:58,438 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1202 [2021-06-05 03:48:58,439 INFO L430 AbstractCegarLoop]: === Iteration 1204 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:58,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:58,439 INFO L82 PathProgramCache]: Analyzing trace with hash 1600782339, now seen corresponding path program 1199 times [2021-06-05 03:48:58,439 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:58,439 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48060832] [2021-06-05 03:48:58,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:58,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:58,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:58,540 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:58,540 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48060832] [2021-06-05 03:48:58,540 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48060832] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:58,540 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:58,540 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:58,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734701010] [2021-06-05 03:48:58,540 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:58,540 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:58,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:58,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:58,541 INFO L87 Difference]: Start difference. First operand 5129 states and 24285 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:58,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:58,669 INFO L93 Difference]: Finished difference Result 10906 states and 48834 transitions. [2021-06-05 03:48:58,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:58,669 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:58,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:58,696 INFO L225 Difference]: With dead ends: 10906 [2021-06-05 03:48:58,696 INFO L226 Difference]: Without dead ends: 10431 [2021-06-05 03:48:58,696 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 127.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:58,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10431 states. [2021-06-05 03:48:58,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10431 to 5201. [2021-06-05 03:48:58,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5201 states, 5200 states have (on average 4.7232692307692306) internal successors, (24561), 5200 states have internal predecessors, (24561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:58,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5201 states to 5201 states and 24561 transitions. [2021-06-05 03:48:58,921 INFO L78 Accepts]: Start accepts. Automaton has 5201 states and 24561 transitions. Word has length 29 [2021-06-05 03:48:58,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:58,921 INFO L482 AbstractCegarLoop]: Abstraction has 5201 states and 24561 transitions. [2021-06-05 03:48:58,921 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:58,921 INFO L276 IsEmpty]: Start isEmpty. Operand 5201 states and 24561 transitions. [2021-06-05 03:48:58,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:58,930 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:58,930 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:58,930 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1203 [2021-06-05 03:48:58,930 INFO L430 AbstractCegarLoop]: === Iteration 1205 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:58,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:58,930 INFO L82 PathProgramCache]: Analyzing trace with hash 426822629, now seen corresponding path program 1200 times [2021-06-05 03:48:58,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:58,930 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31804200] [2021-06-05 03:48:58,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:58,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:59,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:59,033 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:59,033 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31804200] [2021-06-05 03:48:59,033 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31804200] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:59,033 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:59,033 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:59,033 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799003034] [2021-06-05 03:48:59,033 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:59,033 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:59,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:59,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:59,034 INFO L87 Difference]: Start difference. First operand 5201 states and 24561 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:59,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:59,170 INFO L93 Difference]: Finished difference Result 10574 states and 47537 transitions. [2021-06-05 03:48:59,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:59,170 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:59,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:59,196 INFO L225 Difference]: With dead ends: 10574 [2021-06-05 03:48:59,197 INFO L226 Difference]: Without dead ends: 9987 [2021-06-05 03:48:59,197 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:59,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9987 states. [2021-06-05 03:48:59,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9987 to 5077. [2021-06-05 03:48:59,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5077 states, 5076 states have (on average 4.754334121355398) internal successors, (24133), 5076 states have internal predecessors, (24133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:59,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5077 states to 5077 states and 24133 transitions. [2021-06-05 03:48:59,420 INFO L78 Accepts]: Start accepts. Automaton has 5077 states and 24133 transitions. Word has length 29 [2021-06-05 03:48:59,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:59,420 INFO L482 AbstractCegarLoop]: Abstraction has 5077 states and 24133 transitions. [2021-06-05 03:48:59,420 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:59,420 INFO L276 IsEmpty]: Start isEmpty. Operand 5077 states and 24133 transitions. [2021-06-05 03:48:59,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:59,429 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:59,429 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:59,429 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1204 [2021-06-05 03:48:59,429 INFO L430 AbstractCegarLoop]: === Iteration 1206 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:59,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:59,429 INFO L82 PathProgramCache]: Analyzing trace with hash 1747416165, now seen corresponding path program 1201 times [2021-06-05 03:48:59,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:59,429 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022424253] [2021-06-05 03:48:59,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:59,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:48:59,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:48:59,559 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:48:59,559 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022424253] [2021-06-05 03:48:59,560 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022424253] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:48:59,560 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:48:59,560 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:48:59,560 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305473814] [2021-06-05 03:48:59,560 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:48:59,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:48:59,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:48:59,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:48:59,560 INFO L87 Difference]: Start difference. First operand 5077 states and 24133 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:59,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:48:59,690 INFO L93 Difference]: Finished difference Result 10248 states and 45808 transitions. [2021-06-05 03:48:59,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:48:59,690 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:48:59,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:48:59,715 INFO L225 Difference]: With dead ends: 10248 [2021-06-05 03:48:59,715 INFO L226 Difference]: Without dead ends: 9833 [2021-06-05 03:48:59,715 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 154.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:48:59,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9833 states. [2021-06-05 03:48:59,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9833 to 5153. [2021-06-05 03:48:59,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 5152 states have (on average 4.74708850931677) internal successors, (24457), 5152 states have internal predecessors, (24457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:59,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 24457 transitions. [2021-06-05 03:48:59,934 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 24457 transitions. Word has length 29 [2021-06-05 03:48:59,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:48:59,934 INFO L482 AbstractCegarLoop]: Abstraction has 5153 states and 24457 transitions. [2021-06-05 03:48:59,934 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:48:59,934 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 24457 transitions. [2021-06-05 03:48:59,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:48:59,943 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:48:59,943 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:48:59,943 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1205 [2021-06-05 03:48:59,943 INFO L430 AbstractCegarLoop]: === Iteration 1207 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:48:59,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:48:59,943 INFO L82 PathProgramCache]: Analyzing trace with hash -1830888185, now seen corresponding path program 1202 times [2021-06-05 03:48:59,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:48:59,943 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203266589] [2021-06-05 03:48:59,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:48:59,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:00,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:00,078 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:00,078 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203266589] [2021-06-05 03:49:00,078 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203266589] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:00,078 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:00,078 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:00,078 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097236110] [2021-06-05 03:49:00,078 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:00,078 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:00,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:00,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:00,078 INFO L87 Difference]: Start difference. First operand 5153 states and 24457 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:00,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:00,189 INFO L93 Difference]: Finished difference Result 10310 states and 46029 transitions. [2021-06-05 03:49:00,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:00,190 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:00,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:00,214 INFO L225 Difference]: With dead ends: 10310 [2021-06-05 03:49:00,214 INFO L226 Difference]: Without dead ends: 9785 [2021-06-05 03:49:00,214 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 160.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:00,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9785 states. [2021-06-05 03:49:00,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9785 to 5105. [2021-06-05 03:49:00,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5105 states, 5104 states have (on average 4.754114420062696) internal successors, (24265), 5104 states have internal predecessors, (24265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:00,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 24265 transitions. [2021-06-05 03:49:00,437 INFO L78 Accepts]: Start accepts. Automaton has 5105 states and 24265 transitions. Word has length 29 [2021-06-05 03:49:00,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:00,437 INFO L482 AbstractCegarLoop]: Abstraction has 5105 states and 24265 transitions. [2021-06-05 03:49:00,437 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:00,437 INFO L276 IsEmpty]: Start isEmpty. Operand 5105 states and 24265 transitions. [2021-06-05 03:49:00,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:00,446 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:00,446 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:00,446 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1206 [2021-06-05 03:49:00,446 INFO L430 AbstractCegarLoop]: === Iteration 1208 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:00,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:00,446 INFO L82 PathProgramCache]: Analyzing trace with hash 1266514119, now seen corresponding path program 1203 times [2021-06-05 03:49:00,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:00,446 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259491042] [2021-06-05 03:49:00,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:00,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:00,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:00,569 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:00,569 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259491042] [2021-06-05 03:49:00,569 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259491042] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:00,569 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:00,569 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:00,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639315211] [2021-06-05 03:49:00,569 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:00,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:00,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:00,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:00,569 INFO L87 Difference]: Start difference. First operand 5105 states and 24265 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:00,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:00,686 INFO L93 Difference]: Finished difference Result 10170 states and 45443 transitions. [2021-06-05 03:49:00,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:00,686 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:00,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:00,710 INFO L225 Difference]: With dead ends: 10170 [2021-06-05 03:49:00,711 INFO L226 Difference]: Without dead ends: 9755 [2021-06-05 03:49:00,711 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 148.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:00,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9755 states. [2021-06-05 03:49:00,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9755 to 5137. [2021-06-05 03:49:00,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5137 states, 5136 states have (on average 4.746300623052959) internal successors, (24377), 5136 states have internal predecessors, (24377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:00,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5137 states to 5137 states and 24377 transitions. [2021-06-05 03:49:00,930 INFO L78 Accepts]: Start accepts. Automaton has 5137 states and 24377 transitions. Word has length 29 [2021-06-05 03:49:00,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:00,930 INFO L482 AbstractCegarLoop]: Abstraction has 5137 states and 24377 transitions. [2021-06-05 03:49:00,930 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:00,930 INFO L276 IsEmpty]: Start isEmpty. Operand 5137 states and 24377 transitions. [2021-06-05 03:49:00,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:00,938 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:00,939 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:00,939 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1207 [2021-06-05 03:49:00,939 INFO L430 AbstractCegarLoop]: === Iteration 1209 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:00,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:00,939 INFO L82 PathProgramCache]: Analyzing trace with hash 1677922115, now seen corresponding path program 1204 times [2021-06-05 03:49:00,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:00,939 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323864972] [2021-06-05 03:49:00,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:00,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:01,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:01,061 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:01,061 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323864972] [2021-06-05 03:49:01,061 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323864972] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:01,061 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:01,061 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:01,062 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182076823] [2021-06-05 03:49:01,062 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:01,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:01,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:01,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:01,062 INFO L87 Difference]: Start difference. First operand 5137 states and 24377 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:01,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:01,156 INFO L93 Difference]: Finished difference Result 10170 states and 45411 transitions. [2021-06-05 03:49:01,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:01,156 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:01,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:01,180 INFO L225 Difference]: With dead ends: 10170 [2021-06-05 03:49:01,180 INFO L226 Difference]: Without dead ends: 9723 [2021-06-05 03:49:01,180 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 130.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:01,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9723 states. [2021-06-05 03:49:01,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9723 to 5105. [2021-06-05 03:49:01,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5105 states, 5104 states have (on average 4.750979623824452) internal successors, (24249), 5104 states have internal predecessors, (24249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:01,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 24249 transitions. [2021-06-05 03:49:01,404 INFO L78 Accepts]: Start accepts. Automaton has 5105 states and 24249 transitions. Word has length 29 [2021-06-05 03:49:01,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:01,404 INFO L482 AbstractCegarLoop]: Abstraction has 5105 states and 24249 transitions. [2021-06-05 03:49:01,404 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:01,404 INFO L276 IsEmpty]: Start isEmpty. Operand 5105 states and 24249 transitions. [2021-06-05 03:49:01,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:01,412 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:01,412 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:01,413 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1208 [2021-06-05 03:49:01,413 INFO L430 AbstractCegarLoop]: === Iteration 1210 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:01,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:01,413 INFO L82 PathProgramCache]: Analyzing trace with hash 1813617603, now seen corresponding path program 1205 times [2021-06-05 03:49:01,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:01,413 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974937489] [2021-06-05 03:49:01,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:01,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:01,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:01,543 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:01,543 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974937489] [2021-06-05 03:49:01,543 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974937489] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:01,543 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:01,543 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:01,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076258462] [2021-06-05 03:49:01,543 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:01,543 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:01,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:01,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:01,543 INFO L87 Difference]: Start difference. First operand 5105 states and 24249 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:01,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:01,657 INFO L93 Difference]: Finished difference Result 10310 states and 46045 transitions. [2021-06-05 03:49:01,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:01,658 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:01,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:01,682 INFO L225 Difference]: With dead ends: 10310 [2021-06-05 03:49:01,682 INFO L226 Difference]: Without dead ends: 9833 [2021-06-05 03:49:01,682 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 155.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:01,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9833 states. [2021-06-05 03:49:01,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9833 to 5153. [2021-06-05 03:49:01,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 5152 states have (on average 4.740877329192546) internal successors, (24425), 5152 states have internal predecessors, (24425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:01,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 24425 transitions. [2021-06-05 03:49:01,906 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 24425 transitions. Word has length 29 [2021-06-05 03:49:01,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:01,906 INFO L482 AbstractCegarLoop]: Abstraction has 5153 states and 24425 transitions. [2021-06-05 03:49:01,906 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:01,906 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 24425 transitions. [2021-06-05 03:49:01,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:01,915 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:01,915 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:01,915 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1209 [2021-06-05 03:49:01,915 INFO L430 AbstractCegarLoop]: === Iteration 1211 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:01,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:01,915 INFO L82 PathProgramCache]: Analyzing trace with hash -1400287067, now seen corresponding path program 1206 times [2021-06-05 03:49:01,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:01,915 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617645845] [2021-06-05 03:49:01,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:01,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:02,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:02,047 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:02,047 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617645845] [2021-06-05 03:49:02,047 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617645845] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:02,047 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:02,047 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:02,047 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906902443] [2021-06-05 03:49:02,048 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:02,048 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:02,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:02,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:02,048 INFO L87 Difference]: Start difference. First operand 5153 states and 24425 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:02,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:02,152 INFO L93 Difference]: Finished difference Result 10248 states and 45728 transitions. [2021-06-05 03:49:02,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:02,152 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:02,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:02,177 INFO L225 Difference]: With dead ends: 10248 [2021-06-05 03:49:02,177 INFO L226 Difference]: Without dead ends: 9769 [2021-06-05 03:49:02,177 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 140.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:02,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9769 states. [2021-06-05 03:49:02,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9769 to 5089. [2021-06-05 03:49:02,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5089 states, 5088 states have (on average 4.754913522012578) internal successors, (24193), 5088 states have internal predecessors, (24193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:02,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5089 states to 5089 states and 24193 transitions. [2021-06-05 03:49:02,397 INFO L78 Accepts]: Start accepts. Automaton has 5089 states and 24193 transitions. Word has length 29 [2021-06-05 03:49:02,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:02,397 INFO L482 AbstractCegarLoop]: Abstraction has 5089 states and 24193 transitions. [2021-06-05 03:49:02,397 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:02,397 INFO L276 IsEmpty]: Start isEmpty. Operand 5089 states and 24193 transitions. [2021-06-05 03:49:02,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:02,405 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:02,406 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:02,406 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1210 [2021-06-05 03:49:02,406 INFO L430 AbstractCegarLoop]: === Iteration 1212 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:02,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:02,406 INFO L82 PathProgramCache]: Analyzing trace with hash -837949369, now seen corresponding path program 1207 times [2021-06-05 03:49:02,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:02,406 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819502331] [2021-06-05 03:49:02,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:02,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:02,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:02,538 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:02,538 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819502331] [2021-06-05 03:49:02,538 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819502331] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:02,538 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:02,539 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:02,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934487274] [2021-06-05 03:49:02,539 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:02,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:02,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:02,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:02,539 INFO L87 Difference]: Start difference. First operand 5089 states and 24193 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:02,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:02,651 INFO L93 Difference]: Finished difference Result 10362 states and 46335 transitions. [2021-06-05 03:49:02,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:02,651 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:02,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:02,675 INFO L225 Difference]: With dead ends: 10362 [2021-06-05 03:49:02,676 INFO L226 Difference]: Without dead ends: 9947 [2021-06-05 03:49:02,676 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 158.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:02,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9947 states. [2021-06-05 03:49:02,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9947 to 5161. [2021-06-05 03:49:02,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.7467054263565895) internal successors, (24493), 5160 states have internal predecessors, (24493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:02,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24493 transitions. [2021-06-05 03:49:02,903 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24493 transitions. Word has length 29 [2021-06-05 03:49:02,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:02,903 INFO L482 AbstractCegarLoop]: Abstraction has 5161 states and 24493 transitions. [2021-06-05 03:49:02,903 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:02,903 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24493 transitions. [2021-06-05 03:49:02,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:02,912 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:02,912 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:02,912 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1211 [2021-06-05 03:49:02,912 INFO L430 AbstractCegarLoop]: === Iteration 1213 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:02,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:02,912 INFO L82 PathProgramCache]: Analyzing trace with hash -121286423, now seen corresponding path program 1208 times [2021-06-05 03:49:02,912 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:02,912 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582252256] [2021-06-05 03:49:02,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:02,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:03,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:03,047 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:03,047 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582252256] [2021-06-05 03:49:03,047 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582252256] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:03,047 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:03,047 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:03,047 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965455117] [2021-06-05 03:49:03,047 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:03,047 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:03,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:03,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:03,048 INFO L87 Difference]: Start difference. First operand 5161 states and 24493 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:03,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:03,160 INFO L93 Difference]: Finished difference Result 10424 states and 46556 transitions. [2021-06-05 03:49:03,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:03,160 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:03,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:03,185 INFO L225 Difference]: With dead ends: 10424 [2021-06-05 03:49:03,185 INFO L226 Difference]: Without dead ends: 9899 [2021-06-05 03:49:03,186 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 160.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:03,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9899 states. [2021-06-05 03:49:03,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9899 to 5113. [2021-06-05 03:49:03,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5113 states, 5112 states have (on average 4.752151799687011) internal successors, (24293), 5112 states have internal predecessors, (24293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:03,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5113 states to 5113 states and 24293 transitions. [2021-06-05 03:49:03,409 INFO L78 Accepts]: Start accepts. Automaton has 5113 states and 24293 transitions. Word has length 29 [2021-06-05 03:49:03,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:03,409 INFO L482 AbstractCegarLoop]: Abstraction has 5113 states and 24293 transitions. [2021-06-05 03:49:03,409 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:03,409 INFO L276 IsEmpty]: Start isEmpty. Operand 5113 states and 24293 transitions. [2021-06-05 03:49:03,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:03,418 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:03,418 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:03,418 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1212 [2021-06-05 03:49:03,418 INFO L430 AbstractCegarLoop]: === Iteration 1214 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:03,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:03,418 INFO L82 PathProgramCache]: Analyzing trace with hash 255021127, now seen corresponding path program 1209 times [2021-06-05 03:49:03,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:03,418 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726626071] [2021-06-05 03:49:03,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:03,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:03,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:03,557 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:03,557 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726626071] [2021-06-05 03:49:03,557 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726626071] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:03,557 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:03,557 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:03,557 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029585481] [2021-06-05 03:49:03,558 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:03,558 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:03,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:03,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:03,558 INFO L87 Difference]: Start difference. First operand 5113 states and 24293 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:03,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:03,677 INFO L93 Difference]: Finished difference Result 10360 states and 46306 transitions. [2021-06-05 03:49:03,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:03,677 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:03,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:03,703 INFO L225 Difference]: With dead ends: 10360 [2021-06-05 03:49:03,703 INFO L226 Difference]: Without dead ends: 9945 [2021-06-05 03:49:03,703 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 165.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:03,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9945 states. [2021-06-05 03:49:03,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9945 to 5161. [2021-06-05 03:49:03,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.742054263565891) internal successors, (24469), 5160 states have internal predecessors, (24469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:03,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24469 transitions. [2021-06-05 03:49:03,928 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24469 transitions. Word has length 29 [2021-06-05 03:49:03,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:03,929 INFO L482 AbstractCegarLoop]: Abstraction has 5161 states and 24469 transitions. [2021-06-05 03:49:03,929 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:03,929 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24469 transitions. [2021-06-05 03:49:03,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:03,937 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:03,937 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:03,938 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1213 [2021-06-05 03:49:03,938 INFO L430 AbstractCegarLoop]: === Iteration 1215 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:03,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:03,938 INFO L82 PathProgramCache]: Analyzing trace with hash 1284586503, now seen corresponding path program 1210 times [2021-06-05 03:49:03,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:03,938 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237617399] [2021-06-05 03:49:03,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:03,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:04,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:04,075 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:04,075 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237617399] [2021-06-05 03:49:04,075 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237617399] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:04,075 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:04,075 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:04,075 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948396309] [2021-06-05 03:49:04,075 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:04,075 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:04,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:04,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:04,076 INFO L87 Difference]: Start difference. First operand 5161 states and 24469 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:04,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:04,189 INFO L93 Difference]: Finished difference Result 10420 states and 46522 transitions. [2021-06-05 03:49:04,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:04,190 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:04,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:04,214 INFO L225 Difference]: With dead ends: 10420 [2021-06-05 03:49:04,214 INFO L226 Difference]: Without dead ends: 9897 [2021-06-05 03:49:04,215 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 162.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:04,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9897 states. [2021-06-05 03:49:04,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9897 to 5113. [2021-06-05 03:49:04,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5113 states, 5112 states have (on average 4.747456964006259) internal successors, (24269), 5112 states have internal predecessors, (24269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:04,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5113 states to 5113 states and 24269 transitions. [2021-06-05 03:49:04,439 INFO L78 Accepts]: Start accepts. Automaton has 5113 states and 24269 transitions. Word has length 29 [2021-06-05 03:49:04,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:04,439 INFO L482 AbstractCegarLoop]: Abstraction has 5113 states and 24269 transitions. [2021-06-05 03:49:04,439 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:04,439 INFO L276 IsEmpty]: Start isEmpty. Operand 5113 states and 24269 transitions. [2021-06-05 03:49:04,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:04,448 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:04,448 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:04,448 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1214 [2021-06-05 03:49:04,448 INFO L430 AbstractCegarLoop]: === Iteration 1216 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:04,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:04,448 INFO L82 PathProgramCache]: Analyzing trace with hash 1458512937, now seen corresponding path program 1211 times [2021-06-05 03:49:04,448 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:04,448 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255850280] [2021-06-05 03:49:04,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:04,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:04,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:04,574 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:04,574 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255850280] [2021-06-05 03:49:04,574 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255850280] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:04,574 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:04,574 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:04,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297363012] [2021-06-05 03:49:04,574 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:04,574 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:04,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:04,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:04,574 INFO L87 Difference]: Start difference. First operand 5113 states and 24269 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:04,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:04,688 INFO L93 Difference]: Finished difference Result 10514 states and 46967 transitions. [2021-06-05 03:49:04,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:04,688 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:04,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:04,713 INFO L225 Difference]: With dead ends: 10514 [2021-06-05 03:49:04,713 INFO L226 Difference]: Without dead ends: 10037 [2021-06-05 03:49:04,713 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 151.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:04,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10037 states. [2021-06-05 03:49:04,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10037 to 5191. [2021-06-05 03:49:04,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.732562620423892) internal successors, (24562), 5190 states have internal predecessors, (24562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:04,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24562 transitions. [2021-06-05 03:49:04,939 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24562 transitions. Word has length 29 [2021-06-05 03:49:04,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:04,939 INFO L482 AbstractCegarLoop]: Abstraction has 5191 states and 24562 transitions. [2021-06-05 03:49:04,939 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:04,939 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24562 transitions. [2021-06-05 03:49:04,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:04,948 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:04,948 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:04,948 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1215 [2021-06-05 03:49:04,948 INFO L430 AbstractCegarLoop]: === Iteration 1217 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:04,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:04,948 INFO L82 PathProgramCache]: Analyzing trace with hash 66368391, now seen corresponding path program 1212 times [2021-06-05 03:49:04,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:04,948 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287221873] [2021-06-05 03:49:04,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:04,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:05,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:05,072 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:05,072 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287221873] [2021-06-05 03:49:05,072 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287221873] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:05,072 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:05,072 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:05,072 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120435659] [2021-06-05 03:49:05,073 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:05,073 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:05,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:05,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:05,073 INFO L87 Difference]: Start difference. First operand 5191 states and 24562 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:05,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:05,197 INFO L93 Difference]: Finished difference Result 10512 states and 46884 transitions. [2021-06-05 03:49:05,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:05,197 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:05,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:05,222 INFO L225 Difference]: With dead ends: 10512 [2021-06-05 03:49:05,222 INFO L226 Difference]: Without dead ends: 9935 [2021-06-05 03:49:05,222 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 150.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:05,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9935 states. [2021-06-05 03:49:05,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9935 to 5089. [2021-06-05 03:49:05,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5089 states, 5088 states have (on average 4.753341194968553) internal successors, (24185), 5088 states have internal predecessors, (24185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:05,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5089 states to 5089 states and 24185 transitions. [2021-06-05 03:49:05,451 INFO L78 Accepts]: Start accepts. Automaton has 5089 states and 24185 transitions. Word has length 29 [2021-06-05 03:49:05,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:05,451 INFO L482 AbstractCegarLoop]: Abstraction has 5089 states and 24185 transitions. [2021-06-05 03:49:05,451 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:05,451 INFO L276 IsEmpty]: Start isEmpty. Operand 5089 states and 24185 transitions. [2021-06-05 03:49:05,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:05,460 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:05,460 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:05,460 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1216 [2021-06-05 03:49:05,460 INFO L430 AbstractCegarLoop]: === Iteration 1218 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:05,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:05,460 INFO L82 PathProgramCache]: Analyzing trace with hash -1627335639, now seen corresponding path program 1213 times [2021-06-05 03:49:05,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:05,461 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708348731] [2021-06-05 03:49:05,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:05,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:05,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:05,589 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:05,589 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708348731] [2021-06-05 03:49:05,589 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708348731] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:05,589 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:05,589 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:05,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002493917] [2021-06-05 03:49:05,589 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:05,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:05,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:05,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:05,590 INFO L87 Difference]: Start difference. First operand 5089 states and 24185 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:05,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:05,759 INFO L93 Difference]: Finished difference Result 10168 states and 45438 transitions. [2021-06-05 03:49:05,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:05,759 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:05,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:05,783 INFO L225 Difference]: With dead ends: 10168 [2021-06-05 03:49:05,784 INFO L226 Difference]: Without dead ends: 9753 [2021-06-05 03:49:05,784 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 152.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:05,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9753 states. [2021-06-05 03:49:05,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9753 to 5137. [2021-06-05 03:49:05,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5137 states, 5136 states have (on average 4.746300623052959) internal successors, (24377), 5136 states have internal predecessors, (24377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:06,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5137 states to 5137 states and 24377 transitions. [2021-06-05 03:49:06,006 INFO L78 Accepts]: Start accepts. Automaton has 5137 states and 24377 transitions. Word has length 29 [2021-06-05 03:49:06,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:06,006 INFO L482 AbstractCegarLoop]: Abstraction has 5137 states and 24377 transitions. [2021-06-05 03:49:06,006 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:06,006 INFO L276 IsEmpty]: Start isEmpty. Operand 5137 states and 24377 transitions. [2021-06-05 03:49:06,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:06,014 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:06,014 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:06,015 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1217 [2021-06-05 03:49:06,015 INFO L430 AbstractCegarLoop]: === Iteration 1219 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:06,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:06,015 INFO L82 PathProgramCache]: Analyzing trace with hash -1215927643, now seen corresponding path program 1214 times [2021-06-05 03:49:06,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:06,015 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933753078] [2021-06-05 03:49:06,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:06,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:06,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:06,141 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:06,141 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933753078] [2021-06-05 03:49:06,141 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933753078] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:06,141 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:06,141 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:06,141 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148529541] [2021-06-05 03:49:06,142 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:06,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:06,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:06,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:06,142 INFO L87 Difference]: Start difference. First operand 5137 states and 24377 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:06,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:06,239 INFO L93 Difference]: Finished difference Result 10168 states and 45406 transitions. [2021-06-05 03:49:06,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:06,239 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:06,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:06,264 INFO L225 Difference]: With dead ends: 10168 [2021-06-05 03:49:06,264 INFO L226 Difference]: Without dead ends: 9721 [2021-06-05 03:49:06,264 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 133.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:06,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9721 states. [2021-06-05 03:49:06,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9721 to 5105. [2021-06-05 03:49:06,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5105 states, 5104 states have (on average 4.750979623824452) internal successors, (24249), 5104 states have internal predecessors, (24249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:06,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 24249 transitions. [2021-06-05 03:49:06,483 INFO L78 Accepts]: Start accepts. Automaton has 5105 states and 24249 transitions. Word has length 29 [2021-06-05 03:49:06,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:06,483 INFO L482 AbstractCegarLoop]: Abstraction has 5105 states and 24249 transitions. [2021-06-05 03:49:06,483 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:06,483 INFO L276 IsEmpty]: Start isEmpty. Operand 5105 states and 24249 transitions. [2021-06-05 03:49:06,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:06,492 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:06,492 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:06,492 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1218 [2021-06-05 03:49:06,492 INFO L430 AbstractCegarLoop]: === Iteration 1220 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:06,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:06,492 INFO L82 PathProgramCache]: Analyzing trace with hash 644570119, now seen corresponding path program 1215 times [2021-06-05 03:49:06,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:06,492 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655858805] [2021-06-05 03:49:06,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:06,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:06,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:06,629 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:06,629 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655858805] [2021-06-05 03:49:06,629 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655858805] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:06,629 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:06,629 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:06,629 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493812118] [2021-06-05 03:49:06,629 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:06,629 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:06,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:06,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:06,630 INFO L87 Difference]: Start difference. First operand 5105 states and 24249 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:06,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:06,740 INFO L93 Difference]: Finished difference Result 10244 states and 45766 transitions. [2021-06-05 03:49:06,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:06,740 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:06,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:06,765 INFO L225 Difference]: With dead ends: 10244 [2021-06-05 03:49:06,765 INFO L226 Difference]: Without dead ends: 9829 [2021-06-05 03:49:06,765 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 163.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:06,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9829 states. [2021-06-05 03:49:06,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9829 to 5153. [2021-06-05 03:49:06,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 5152 states have (on average 4.740877329192546) internal successors, (24425), 5152 states have internal predecessors, (24425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:06,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 24425 transitions. [2021-06-05 03:49:06,991 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 24425 transitions. Word has length 29 [2021-06-05 03:49:06,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:06,991 INFO L482 AbstractCegarLoop]: Abstraction has 5153 states and 24425 transitions. [2021-06-05 03:49:06,991 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:06,991 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 24425 transitions. [2021-06-05 03:49:07,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:07,000 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:07,000 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:07,000 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1219 [2021-06-05 03:49:07,000 INFO L430 AbstractCegarLoop]: === Iteration 1221 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:07,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:07,001 INFO L82 PathProgramCache]: Analyzing trace with hash -1300779031, now seen corresponding path program 1216 times [2021-06-05 03:49:07,001 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:07,001 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337840331] [2021-06-05 03:49:07,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:07,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:07,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:07,135 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:07,135 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337840331] [2021-06-05 03:49:07,135 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337840331] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:07,135 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:07,135 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:07,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676843440] [2021-06-05 03:49:07,135 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:07,135 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:07,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:07,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:07,136 INFO L87 Difference]: Start difference. First operand 5153 states and 24425 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:07,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:07,251 INFO L93 Difference]: Finished difference Result 10304 states and 45982 transitions. [2021-06-05 03:49:07,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:07,251 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:07,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:07,276 INFO L225 Difference]: With dead ends: 10304 [2021-06-05 03:49:07,276 INFO L226 Difference]: Without dead ends: 9781 [2021-06-05 03:49:07,276 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 158.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:07,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9781 states. [2021-06-05 03:49:07,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9781 to 5105. [2021-06-05 03:49:07,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5105 states, 5104 states have (on average 4.747844827586207) internal successors, (24233), 5104 states have internal predecessors, (24233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:07,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 24233 transitions. [2021-06-05 03:49:07,496 INFO L78 Accepts]: Start accepts. Automaton has 5105 states and 24233 transitions. Word has length 29 [2021-06-05 03:49:07,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:07,496 INFO L482 AbstractCegarLoop]: Abstraction has 5105 states and 24233 transitions. [2021-06-05 03:49:07,497 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:07,497 INFO L276 IsEmpty]: Start isEmpty. Operand 5105 states and 24233 transitions. [2021-06-05 03:49:07,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:07,505 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:07,505 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:07,505 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1220 [2021-06-05 03:49:07,505 INFO L430 AbstractCegarLoop]: === Iteration 1222 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:07,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:07,505 INFO L82 PathProgramCache]: Analyzing trace with hash 910355395, now seen corresponding path program 1217 times [2021-06-05 03:49:07,505 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:07,506 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214316587] [2021-06-05 03:49:07,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:07,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:07,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:07,640 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:07,640 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214316587] [2021-06-05 03:49:07,640 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214316587] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:07,640 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:07,641 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:07,641 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545134466] [2021-06-05 03:49:07,641 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:07,641 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:07,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:07,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:07,641 INFO L87 Difference]: Start difference. First operand 5105 states and 24233 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:07,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:07,732 INFO L93 Difference]: Finished difference Result 10244 states and 45750 transitions. [2021-06-05 03:49:07,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:07,733 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:07,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:07,757 INFO L225 Difference]: With dead ends: 10244 [2021-06-05 03:49:07,758 INFO L226 Difference]: Without dead ends: 9829 [2021-06-05 03:49:07,758 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 143.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:07,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9829 states. [2021-06-05 03:49:07,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9829 to 5153. [2021-06-05 03:49:07,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 5152 states have (on average 4.737771739130435) internal successors, (24409), 5152 states have internal predecessors, (24409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:07,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 24409 transitions. [2021-06-05 03:49:07,978 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 24409 transitions. Word has length 29 [2021-06-05 03:49:07,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:07,978 INFO L482 AbstractCegarLoop]: Abstraction has 5153 states and 24409 transitions. [2021-06-05 03:49:07,978 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:07,978 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 24409 transitions. [2021-06-05 03:49:07,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:07,986 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:07,987 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:07,987 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1221 [2021-06-05 03:49:07,987 INFO L430 AbstractCegarLoop]: === Iteration 1223 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:07,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:07,987 INFO L82 PathProgramCache]: Analyzing trace with hash 1991418021, now seen corresponding path program 1218 times [2021-06-05 03:49:07,987 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:07,987 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771991900] [2021-06-05 03:49:07,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:07,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:08,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:08,119 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:08,119 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771991900] [2021-06-05 03:49:08,120 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771991900] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:08,120 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:08,120 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:08,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423530441] [2021-06-05 03:49:08,120 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:08,120 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:08,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:08,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:08,120 INFO L87 Difference]: Start difference. First operand 5153 states and 24409 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:08,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:08,232 INFO L93 Difference]: Finished difference Result 10304 states and 45966 transitions. [2021-06-05 03:49:08,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:08,233 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:08,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:08,257 INFO L225 Difference]: With dead ends: 10304 [2021-06-05 03:49:08,258 INFO L226 Difference]: Without dead ends: 9765 [2021-06-05 03:49:08,258 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 158.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:08,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9765 states. [2021-06-05 03:49:08,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9765 to 5089. [2021-06-05 03:49:08,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5089 states, 5088 states have (on average 4.751768867924528) internal successors, (24177), 5088 states have internal predecessors, (24177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:08,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5089 states to 5089 states and 24177 transitions. [2021-06-05 03:49:08,478 INFO L78 Accepts]: Start accepts. Automaton has 5089 states and 24177 transitions. Word has length 29 [2021-06-05 03:49:08,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:08,478 INFO L482 AbstractCegarLoop]: Abstraction has 5089 states and 24177 transitions. [2021-06-05 03:49:08,479 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:08,479 INFO L276 IsEmpty]: Start isEmpty. Operand 5089 states and 24177 transitions. [2021-06-05 03:49:08,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:08,487 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:08,487 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:08,487 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1222 [2021-06-05 03:49:08,487 INFO L430 AbstractCegarLoop]: === Iteration 1224 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:08,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:08,487 INFO L82 PathProgramCache]: Analyzing trace with hash 768751683, now seen corresponding path program 1219 times [2021-06-05 03:49:08,487 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:08,488 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828957777] [2021-06-05 03:49:08,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:08,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:08,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:08,615 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:08,615 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828957777] [2021-06-05 03:49:08,615 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828957777] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:08,615 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:08,615 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:08,615 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678009004] [2021-06-05 03:49:08,615 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:08,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:08,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:08,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:08,615 INFO L87 Difference]: Start difference. First operand 5089 states and 24177 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:08,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:08,727 INFO L93 Difference]: Finished difference Result 10424 states and 46588 transitions. [2021-06-05 03:49:08,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:08,728 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:08,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:08,752 INFO L225 Difference]: With dead ends: 10424 [2021-06-05 03:49:08,752 INFO L226 Difference]: Without dead ends: 9947 [2021-06-05 03:49:08,752 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 151.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:08,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9947 states. [2021-06-05 03:49:08,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9947 to 5161. [2021-06-05 03:49:08,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.743604651162791) internal successors, (24477), 5160 states have internal predecessors, (24477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:08,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24477 transitions. [2021-06-05 03:49:08,974 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24477 transitions. Word has length 29 [2021-06-05 03:49:08,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:08,975 INFO L482 AbstractCegarLoop]: Abstraction has 5161 states and 24477 transitions. [2021-06-05 03:49:08,975 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:08,975 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24477 transitions. [2021-06-05 03:49:08,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:08,983 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:08,983 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:08,984 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1223 [2021-06-05 03:49:08,984 INFO L430 AbstractCegarLoop]: === Iteration 1225 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:08,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:08,984 INFO L82 PathProgramCache]: Analyzing trace with hash 1849814309, now seen corresponding path program 1220 times [2021-06-05 03:49:08,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:08,984 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477941767] [2021-06-05 03:49:08,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:08,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:09,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:09,116 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:09,116 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477941767] [2021-06-05 03:49:09,116 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477941767] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:09,116 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:09,116 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:09,116 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162432342] [2021-06-05 03:49:09,117 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:09,117 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:09,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:09,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:09,117 INFO L87 Difference]: Start difference. First operand 5161 states and 24477 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:09,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:09,216 INFO L93 Difference]: Finished difference Result 10362 states and 46271 transitions. [2021-06-05 03:49:09,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:09,216 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:09,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:09,241 INFO L225 Difference]: With dead ends: 10362 [2021-06-05 03:49:09,241 INFO L226 Difference]: Without dead ends: 9899 [2021-06-05 03:49:09,241 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 139.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:09,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9899 states. [2021-06-05 03:49:09,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9899 to 5113. [2021-06-05 03:49:09,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5113 states, 5112 states have (on average 4.749021909233177) internal successors, (24277), 5112 states have internal predecessors, (24277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:09,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5113 states to 5113 states and 24277 transitions. [2021-06-05 03:49:09,456 INFO L78 Accepts]: Start accepts. Automaton has 5113 states and 24277 transitions. Word has length 29 [2021-06-05 03:49:09,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:09,456 INFO L482 AbstractCegarLoop]: Abstraction has 5113 states and 24277 transitions. [2021-06-05 03:49:09,456 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:09,456 INFO L276 IsEmpty]: Start isEmpty. Operand 5113 states and 24277 transitions. [2021-06-05 03:49:09,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:09,464 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:09,464 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:09,464 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1224 [2021-06-05 03:49:09,464 INFO L430 AbstractCegarLoop]: === Iteration 1226 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:09,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:09,464 INFO L82 PathProgramCache]: Analyzing trace with hash 287849637, now seen corresponding path program 1221 times [2021-06-05 03:49:09,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:09,465 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204552823] [2021-06-05 03:49:09,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:09,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:09,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:09,583 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:09,583 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204552823] [2021-06-05 03:49:09,583 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204552823] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:09,584 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:09,584 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:09,584 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995391340] [2021-06-05 03:49:09,584 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:09,584 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:09,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:09,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:09,584 INFO L87 Difference]: Start difference. First operand 5113 states and 24277 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:09,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:09,698 INFO L93 Difference]: Finished difference Result 10514 states and 46975 transitions. [2021-06-05 03:49:09,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:09,699 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:09,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:09,723 INFO L225 Difference]: With dead ends: 10514 [2021-06-05 03:49:09,724 INFO L226 Difference]: Without dead ends: 10037 [2021-06-05 03:49:09,724 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 144.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:09,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10037 states. [2021-06-05 03:49:09,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10037 to 5191. [2021-06-05 03:49:09,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.734104046242774) internal successors, (24570), 5190 states have internal predecessors, (24570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:09,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24570 transitions. [2021-06-05 03:49:09,943 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24570 transitions. Word has length 29 [2021-06-05 03:49:09,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:09,943 INFO L482 AbstractCegarLoop]: Abstraction has 5191 states and 24570 transitions. [2021-06-05 03:49:09,943 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:09,943 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24570 transitions. [2021-06-05 03:49:09,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:09,952 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:09,952 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:09,952 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1225 [2021-06-05 03:49:09,952 INFO L430 AbstractCegarLoop]: === Iteration 1227 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:09,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:09,952 INFO L82 PathProgramCache]: Analyzing trace with hash -1400396635, now seen corresponding path program 1222 times [2021-06-05 03:49:09,952 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:09,952 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216071728] [2021-06-05 03:49:09,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:09,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:10,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:10,071 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:10,071 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216071728] [2021-06-05 03:49:10,072 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216071728] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:10,072 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:10,072 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:10,072 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603618221] [2021-06-05 03:49:10,072 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:10,072 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:10,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:10,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:10,072 INFO L87 Difference]: Start difference. First operand 5191 states and 24570 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:10,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:10,192 INFO L93 Difference]: Finished difference Result 10512 states and 46892 transitions. [2021-06-05 03:49:10,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:10,192 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:10,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:10,216 INFO L225 Difference]: With dead ends: 10512 [2021-06-05 03:49:10,216 INFO L226 Difference]: Without dead ends: 9959 [2021-06-05 03:49:10,216 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 143.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:10,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9959 states. [2021-06-05 03:49:10,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9959 to 5113. [2021-06-05 03:49:10,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5113 states, 5112 states have (on average 4.744327073552426) internal successors, (24253), 5112 states have internal predecessors, (24253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:10,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5113 states to 5113 states and 24253 transitions. [2021-06-05 03:49:10,432 INFO L78 Accepts]: Start accepts. Automaton has 5113 states and 24253 transitions. Word has length 29 [2021-06-05 03:49:10,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:10,432 INFO L482 AbstractCegarLoop]: Abstraction has 5113 states and 24253 transitions. [2021-06-05 03:49:10,432 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:10,432 INFO L276 IsEmpty]: Start isEmpty. Operand 5113 states and 24253 transitions. [2021-06-05 03:49:10,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:10,441 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:10,441 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:10,441 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1226 [2021-06-05 03:49:10,441 INFO L430 AbstractCegarLoop]: === Iteration 1228 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:10,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:10,441 INFO L82 PathProgramCache]: Analyzing trace with hash 675854599, now seen corresponding path program 1223 times [2021-06-05 03:49:10,441 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:10,441 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515301384] [2021-06-05 03:49:10,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:10,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:10,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:10,572 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:10,572 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515301384] [2021-06-05 03:49:10,572 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515301384] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:10,572 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:10,572 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:10,572 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309548267] [2021-06-05 03:49:10,572 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:10,572 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:10,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:10,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:10,572 INFO L87 Difference]: Start difference. First operand 5113 states and 24253 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:10,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:10,663 INFO L93 Difference]: Finished difference Result 10360 states and 46266 transitions. [2021-06-05 03:49:10,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:10,663 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:10,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:10,687 INFO L225 Difference]: With dead ends: 10360 [2021-06-05 03:49:10,688 INFO L226 Difference]: Without dead ends: 9945 [2021-06-05 03:49:10,688 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 138.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:10,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9945 states. [2021-06-05 03:49:10,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9945 to 5161. [2021-06-05 03:49:10,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.734302325581395) internal successors, (24429), 5160 states have internal predecessors, (24429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:10,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24429 transitions. [2021-06-05 03:49:10,904 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24429 transitions. Word has length 29 [2021-06-05 03:49:10,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:10,904 INFO L482 AbstractCegarLoop]: Abstraction has 5161 states and 24429 transitions. [2021-06-05 03:49:10,904 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:10,904 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24429 transitions. [2021-06-05 03:49:10,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:10,913 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:10,913 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:10,913 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1227 [2021-06-05 03:49:10,913 INFO L430 AbstractCegarLoop]: === Iteration 1229 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:10,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:10,913 INFO L82 PathProgramCache]: Analyzing trace with hash -170942363, now seen corresponding path program 1224 times [2021-06-05 03:49:10,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:10,913 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559339844] [2021-06-05 03:49:10,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:10,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:11,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:11,044 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:11,044 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559339844] [2021-06-05 03:49:11,044 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559339844] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:11,044 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:11,045 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:11,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812977369] [2021-06-05 03:49:11,045 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:11,045 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:11,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:11,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:11,045 INFO L87 Difference]: Start difference. First operand 5161 states and 24429 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:11,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:11,170 INFO L93 Difference]: Finished difference Result 10420 states and 46482 transitions. [2021-06-05 03:49:11,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:11,170 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:11,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:11,195 INFO L225 Difference]: With dead ends: 10420 [2021-06-05 03:49:11,195 INFO L226 Difference]: Without dead ends: 9865 [2021-06-05 03:49:11,195 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 157.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:11,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9865 states. [2021-06-05 03:49:11,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9865 to 5081. [2021-06-05 03:49:11,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5081 states, 5080 states have (on average 4.754527559055118) internal successors, (24153), 5080 states have internal predecessors, (24153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:11,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5081 states to 5081 states and 24153 transitions. [2021-06-05 03:49:11,412 INFO L78 Accepts]: Start accepts. Automaton has 5081 states and 24153 transitions. Word has length 29 [2021-06-05 03:49:11,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:11,412 INFO L482 AbstractCegarLoop]: Abstraction has 5081 states and 24153 transitions. [2021-06-05 03:49:11,412 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:11,412 INFO L276 IsEmpty]: Start isEmpty. Operand 5081 states and 24153 transitions. [2021-06-05 03:49:11,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:11,420 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:11,420 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:11,420 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1228 [2021-06-05 03:49:11,420 INFO L430 AbstractCegarLoop]: === Iteration 1230 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:11,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:11,421 INFO L82 PathProgramCache]: Analyzing trace with hash -398360761, now seen corresponding path program 1225 times [2021-06-05 03:49:11,421 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:11,421 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564101913] [2021-06-05 03:49:11,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:11,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:11,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:11,547 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:11,547 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564101913] [2021-06-05 03:49:11,547 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564101913] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:11,547 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:11,547 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:11,547 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852800677] [2021-06-05 03:49:11,547 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:11,547 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:11,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:11,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:11,548 INFO L87 Difference]: Start difference. First operand 5081 states and 24153 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:11,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:11,673 INFO L93 Difference]: Finished difference Result 10214 states and 45661 transitions. [2021-06-05 03:49:11,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:11,674 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:11,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:11,698 INFO L225 Difference]: With dead ends: 10214 [2021-06-05 03:49:11,698 INFO L226 Difference]: Without dead ends: 9799 [2021-06-05 03:49:11,698 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 151.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:11,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9799 states. [2021-06-05 03:49:11,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9799 to 5153. [2021-06-05 03:49:11,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 5152 states have (on average 4.746312111801243) internal successors, (24453), 5152 states have internal predecessors, (24453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:11,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 24453 transitions. [2021-06-05 03:49:11,914 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 24453 transitions. Word has length 29 [2021-06-05 03:49:11,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:11,914 INFO L482 AbstractCegarLoop]: Abstraction has 5153 states and 24453 transitions. [2021-06-05 03:49:11,914 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:11,914 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 24453 transitions. [2021-06-05 03:49:11,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:11,922 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:11,922 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:11,922 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1229 [2021-06-05 03:49:11,922 INFO L430 AbstractCegarLoop]: === Iteration 1231 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:11,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:11,922 INFO L82 PathProgramCache]: Analyzing trace with hash 318302185, now seen corresponding path program 1226 times [2021-06-05 03:49:11,923 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:11,923 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831605305] [2021-06-05 03:49:11,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:11,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:12,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:12,050 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:12,050 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831605305] [2021-06-05 03:49:12,050 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831605305] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:12,050 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:12,050 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:12,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529976336] [2021-06-05 03:49:12,050 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:12,050 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:12,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:12,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:12,050 INFO L87 Difference]: Start difference. First operand 5153 states and 24453 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:12,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:12,175 INFO L93 Difference]: Finished difference Result 10276 states and 45882 transitions. [2021-06-05 03:49:12,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:12,175 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:12,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:12,199 INFO L225 Difference]: With dead ends: 10276 [2021-06-05 03:49:12,199 INFO L226 Difference]: Without dead ends: 9751 [2021-06-05 03:49:12,199 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 152.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:12,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9751 states. [2021-06-05 03:49:12,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9751 to 5105. [2021-06-05 03:49:12,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5105 states, 5104 states have (on average 4.753330721003135) internal successors, (24261), 5104 states have internal predecessors, (24261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:12,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 24261 transitions. [2021-06-05 03:49:12,415 INFO L78 Accepts]: Start accepts. Automaton has 5105 states and 24261 transitions. Word has length 29 [2021-06-05 03:49:12,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:12,415 INFO L482 AbstractCegarLoop]: Abstraction has 5105 states and 24261 transitions. [2021-06-05 03:49:12,415 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:12,415 INFO L276 IsEmpty]: Start isEmpty. Operand 5105 states and 24261 transitions. [2021-06-05 03:49:12,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:12,424 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:12,424 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:12,424 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1230 [2021-06-05 03:49:12,424 INFO L430 AbstractCegarLoop]: === Iteration 1232 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:12,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:12,424 INFO L82 PathProgramCache]: Analyzing trace with hash -879262807, now seen corresponding path program 1227 times [2021-06-05 03:49:12,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:12,424 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493586643] [2021-06-05 03:49:12,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:12,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:12,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:12,544 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:12,544 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493586643] [2021-06-05 03:49:12,544 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493586643] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:12,544 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:12,544 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:12,544 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834990986] [2021-06-05 03:49:12,544 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:12,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:12,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:12,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:12,545 INFO L87 Difference]: Start difference. First operand 5105 states and 24261 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:12,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:12,671 INFO L93 Difference]: Finished difference Result 10136 states and 45296 transitions. [2021-06-05 03:49:12,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:12,672 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:12,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:12,696 INFO L225 Difference]: With dead ends: 10136 [2021-06-05 03:49:12,696 INFO L226 Difference]: Without dead ends: 9721 [2021-06-05 03:49:12,696 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 145.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:12,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9721 states. [2021-06-05 03:49:12,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9721 to 5137. [2021-06-05 03:49:12,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5137 states, 5136 states have (on average 4.745521806853582) internal successors, (24373), 5136 states have internal predecessors, (24373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:12,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5137 states to 5137 states and 24373 transitions. [2021-06-05 03:49:12,923 INFO L78 Accepts]: Start accepts. Automaton has 5137 states and 24373 transitions. Word has length 29 [2021-06-05 03:49:12,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:12,923 INFO L482 AbstractCegarLoop]: Abstraction has 5137 states and 24373 transitions. [2021-06-05 03:49:12,923 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:12,923 INFO L276 IsEmpty]: Start isEmpty. Operand 5137 states and 24373 transitions. [2021-06-05 03:49:12,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:12,932 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:12,932 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:12,932 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1231 [2021-06-05 03:49:12,932 INFO L430 AbstractCegarLoop]: === Iteration 1233 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:12,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:12,932 INFO L82 PathProgramCache]: Analyzing trace with hash -467854811, now seen corresponding path program 1228 times [2021-06-05 03:49:12,932 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:12,932 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124868971] [2021-06-05 03:49:12,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:12,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:13,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:13,054 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:13,055 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124868971] [2021-06-05 03:49:13,055 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124868971] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:13,055 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:13,055 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:13,055 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96239412] [2021-06-05 03:49:13,055 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:13,055 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:13,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:13,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:13,055 INFO L87 Difference]: Start difference. First operand 5137 states and 24373 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:13,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:13,152 INFO L93 Difference]: Finished difference Result 10136 states and 45264 transitions. [2021-06-05 03:49:13,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:13,152 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:13,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:13,176 INFO L225 Difference]: With dead ends: 10136 [2021-06-05 03:49:13,176 INFO L226 Difference]: Without dead ends: 9689 [2021-06-05 03:49:13,176 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 130.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:13,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9689 states. [2021-06-05 03:49:13,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9689 to 5105. [2021-06-05 03:49:13,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5105 states, 5104 states have (on average 4.75019592476489) internal successors, (24245), 5104 states have internal predecessors, (24245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:13,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 24245 transitions. [2021-06-05 03:49:13,390 INFO L78 Accepts]: Start accepts. Automaton has 5105 states and 24245 transitions. Word has length 29 [2021-06-05 03:49:13,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:13,390 INFO L482 AbstractCegarLoop]: Abstraction has 5105 states and 24245 transitions. [2021-06-05 03:49:13,390 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:13,390 INFO L276 IsEmpty]: Start isEmpty. Operand 5105 states and 24245 transitions. [2021-06-05 03:49:13,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:13,398 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:13,398 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:13,398 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1232 [2021-06-05 03:49:13,398 INFO L430 AbstractCegarLoop]: === Iteration 1234 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:13,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:13,399 INFO L82 PathProgramCache]: Analyzing trace with hash -332159323, now seen corresponding path program 1229 times [2021-06-05 03:49:13,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:13,399 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481837761] [2021-06-05 03:49:13,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:13,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:13,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:13,527 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:13,527 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481837761] [2021-06-05 03:49:13,527 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481837761] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:13,527 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:13,527 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:13,527 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400768182] [2021-06-05 03:49:13,527 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:13,527 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:13,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:13,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:13,528 INFO L87 Difference]: Start difference. First operand 5105 states and 24245 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:13,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:13,634 INFO L93 Difference]: Finished difference Result 10276 states and 45898 transitions. [2021-06-05 03:49:13,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:13,634 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:13,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:13,658 INFO L225 Difference]: With dead ends: 10276 [2021-06-05 03:49:13,658 INFO L226 Difference]: Without dead ends: 9799 [2021-06-05 03:49:13,658 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 153.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:13,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9799 states. [2021-06-05 03:49:13,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9799 to 5153. [2021-06-05 03:49:13,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 5152 states have (on average 4.740100931677019) internal successors, (24421), 5152 states have internal predecessors, (24421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:13,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 24421 transitions. [2021-06-05 03:49:13,876 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 24421 transitions. Word has length 29 [2021-06-05 03:49:13,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:13,876 INFO L482 AbstractCegarLoop]: Abstraction has 5153 states and 24421 transitions. [2021-06-05 03:49:13,877 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:13,877 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 24421 transitions. [2021-06-05 03:49:13,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:13,885 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:13,885 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:13,885 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1233 [2021-06-05 03:49:13,885 INFO L430 AbstractCegarLoop]: === Iteration 1235 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:13,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:13,885 INFO L82 PathProgramCache]: Analyzing trace with hash 748903303, now seen corresponding path program 1230 times [2021-06-05 03:49:13,885 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:13,885 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315270859] [2021-06-05 03:49:13,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:13,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:14,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:14,016 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:14,016 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315270859] [2021-06-05 03:49:14,016 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315270859] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:14,016 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:14,016 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:14,016 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617493970] [2021-06-05 03:49:14,016 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:14,016 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:14,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:14,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:14,016 INFO L87 Difference]: Start difference. First operand 5153 states and 24421 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:14,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:14,106 INFO L93 Difference]: Finished difference Result 10214 states and 45581 transitions. [2021-06-05 03:49:14,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:14,107 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:14,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:14,131 INFO L225 Difference]: With dead ends: 10214 [2021-06-05 03:49:14,131 INFO L226 Difference]: Without dead ends: 9735 [2021-06-05 03:49:14,131 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 137.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:14,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9735 states. [2021-06-05 03:49:14,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9735 to 5089. [2021-06-05 03:49:14,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5089 states, 5088 states have (on average 4.754127358490566) internal successors, (24189), 5088 states have internal predecessors, (24189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:14,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5089 states to 5089 states and 24189 transitions. [2021-06-05 03:49:14,346 INFO L78 Accepts]: Start accepts. Automaton has 5089 states and 24189 transitions. Word has length 29 [2021-06-05 03:49:14,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:14,346 INFO L482 AbstractCegarLoop]: Abstraction has 5089 states and 24189 transitions. [2021-06-05 03:49:14,346 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:14,346 INFO L276 IsEmpty]: Start isEmpty. Operand 5089 states and 24189 transitions. [2021-06-05 03:49:14,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:14,354 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:14,354 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:14,354 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1234 [2021-06-05 03:49:14,354 INFO L430 AbstractCegarLoop]: === Iteration 1236 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:14,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:14,355 INFO L82 PathProgramCache]: Analyzing trace with hash 692705095, now seen corresponding path program 1231 times [2021-06-05 03:49:14,355 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:14,355 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596675395] [2021-06-05 03:49:14,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:14,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:14,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:14,485 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:14,485 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596675395] [2021-06-05 03:49:14,485 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596675395] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:14,485 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:14,485 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:14,485 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156216025] [2021-06-05 03:49:14,485 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:14,485 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:14,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:14,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:14,485 INFO L87 Difference]: Start difference. First operand 5089 states and 24189 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:14,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:14,597 INFO L93 Difference]: Finished difference Result 10262 states and 45901 transitions. [2021-06-05 03:49:14,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:14,597 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:14,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:14,621 INFO L225 Difference]: With dead ends: 10262 [2021-06-05 03:49:14,622 INFO L226 Difference]: Without dead ends: 9847 [2021-06-05 03:49:14,622 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 156.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:14,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9847 states. [2021-06-05 03:49:14,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9847 to 5161. [2021-06-05 03:49:14,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.745930232558139) internal successors, (24489), 5160 states have internal predecessors, (24489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:14,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24489 transitions. [2021-06-05 03:49:14,838 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24489 transitions. Word has length 29 [2021-06-05 03:49:14,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:14,838 INFO L482 AbstractCegarLoop]: Abstraction has 5161 states and 24489 transitions. [2021-06-05 03:49:14,838 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:14,838 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24489 transitions. [2021-06-05 03:49:14,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:14,847 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:14,847 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:14,847 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1235 [2021-06-05 03:49:14,847 INFO L430 AbstractCegarLoop]: === Iteration 1237 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:14,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:14,847 INFO L82 PathProgramCache]: Analyzing trace with hash 1409368041, now seen corresponding path program 1232 times [2021-06-05 03:49:14,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:14,847 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427005804] [2021-06-05 03:49:14,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:14,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:14,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:14,978 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:14,978 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427005804] [2021-06-05 03:49:14,979 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427005804] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:14,979 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:14,979 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:14,979 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885003539] [2021-06-05 03:49:14,979 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:14,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:14,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:14,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:14,979 INFO L87 Difference]: Start difference. First operand 5161 states and 24489 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:15,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:15,091 INFO L93 Difference]: Finished difference Result 10324 states and 46122 transitions. [2021-06-05 03:49:15,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:15,092 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:15,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:15,116 INFO L225 Difference]: With dead ends: 10324 [2021-06-05 03:49:15,116 INFO L226 Difference]: Without dead ends: 9799 [2021-06-05 03:49:15,116 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 157.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:15,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9799 states. [2021-06-05 03:49:15,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9799 to 5113. [2021-06-05 03:49:15,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5113 states, 5112 states have (on average 4.751369327073553) internal successors, (24289), 5112 states have internal predecessors, (24289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:15,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5113 states to 5113 states and 24289 transitions. [2021-06-05 03:49:15,367 INFO L78 Accepts]: Start accepts. Automaton has 5113 states and 24289 transitions. Word has length 29 [2021-06-05 03:49:15,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:15,367 INFO L482 AbstractCegarLoop]: Abstraction has 5113 states and 24289 transitions. [2021-06-05 03:49:15,367 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:15,367 INFO L276 IsEmpty]: Start isEmpty. Operand 5113 states and 24289 transitions. [2021-06-05 03:49:15,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:15,375 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:15,375 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:15,375 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1236 [2021-06-05 03:49:15,375 INFO L430 AbstractCegarLoop]: === Iteration 1238 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:15,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:15,376 INFO L82 PathProgramCache]: Analyzing trace with hash 379658055, now seen corresponding path program 1233 times [2021-06-05 03:49:15,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:15,376 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105027545] [2021-06-05 03:49:15,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:15,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:15,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:15,494 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:15,494 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105027545] [2021-06-05 03:49:15,495 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105027545] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:15,495 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:15,495 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:15,495 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12565682] [2021-06-05 03:49:15,495 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:15,495 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:15,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:15,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:15,495 INFO L87 Difference]: Start difference. First operand 5113 states and 24289 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:15,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:15,606 INFO L93 Difference]: Finished difference Result 10152 states and 45432 transitions. [2021-06-05 03:49:15,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:15,606 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:15,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:15,630 INFO L225 Difference]: With dead ends: 10152 [2021-06-05 03:49:15,630 INFO L226 Difference]: Without dead ends: 9737 [2021-06-05 03:49:15,630 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 144.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:15,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9737 states. [2021-06-05 03:49:15,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9737 to 5161. [2021-06-05 03:49:15,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.741279069767442) internal successors, (24465), 5160 states have internal predecessors, (24465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:15,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24465 transitions. [2021-06-05 03:49:15,847 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24465 transitions. Word has length 29 [2021-06-05 03:49:15,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:15,847 INFO L482 AbstractCegarLoop]: Abstraction has 5161 states and 24465 transitions. [2021-06-05 03:49:15,847 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:15,847 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24465 transitions. [2021-06-05 03:49:15,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:15,856 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:15,856 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:15,856 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1237 [2021-06-05 03:49:15,856 INFO L430 AbstractCegarLoop]: === Iteration 1239 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:15,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:15,856 INFO L82 PathProgramCache]: Analyzing trace with hash 1934281479, now seen corresponding path program 1234 times [2021-06-05 03:49:15,856 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:15,856 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259840799] [2021-06-05 03:49:15,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:15,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:15,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:15,974 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:15,974 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259840799] [2021-06-05 03:49:15,974 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259840799] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:15,974 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:15,974 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:15,974 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412871287] [2021-06-05 03:49:15,974 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:15,974 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:15,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:15,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:15,975 INFO L87 Difference]: Start difference. First operand 5161 states and 24465 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:16,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:16,084 INFO L93 Difference]: Finished difference Result 9880 states and 44423 transitions. [2021-06-05 03:49:16,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:16,085 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:16,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:16,108 INFO L225 Difference]: With dead ends: 9880 [2021-06-05 03:49:16,108 INFO L226 Difference]: Without dead ends: 9369 [2021-06-05 03:49:16,108 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 142.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:16,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9369 states. [2021-06-05 03:49:16,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9369 to 5113. [2021-06-05 03:49:16,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5113 states, 5112 states have (on average 4.746674491392802) internal successors, (24265), 5112 states have internal predecessors, (24265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:16,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5113 states to 5113 states and 24265 transitions. [2021-06-05 03:49:16,327 INFO L78 Accepts]: Start accepts. Automaton has 5113 states and 24265 transitions. Word has length 29 [2021-06-05 03:49:16,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:16,327 INFO L482 AbstractCegarLoop]: Abstraction has 5113 states and 24265 transitions. [2021-06-05 03:49:16,327 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:16,327 INFO L276 IsEmpty]: Start isEmpty. Operand 5113 states and 24265 transitions. [2021-06-05 03:49:16,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:16,336 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:16,336 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:16,336 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1238 [2021-06-05 03:49:16,336 INFO L430 AbstractCegarLoop]: === Iteration 1240 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:16,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:16,336 INFO L82 PathProgramCache]: Analyzing trace with hash 763810601, now seen corresponding path program 1235 times [2021-06-05 03:49:16,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:16,336 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924354615] [2021-06-05 03:49:16,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:16,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:16,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:16,468 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:16,468 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924354615] [2021-06-05 03:49:16,468 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924354615] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:16,468 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:16,468 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:16,468 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146467621] [2021-06-05 03:49:16,468 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:16,468 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:16,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:16,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:16,468 INFO L87 Difference]: Start difference. First operand 5113 states and 24265 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:16,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:16,576 INFO L93 Difference]: Finished difference Result 10238 states and 45801 transitions. [2021-06-05 03:49:16,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:16,577 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:16,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:16,602 INFO L225 Difference]: With dead ends: 10238 [2021-06-05 03:49:16,602 INFO L226 Difference]: Without dead ends: 9761 [2021-06-05 03:49:16,602 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 156.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:16,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9761 states. [2021-06-05 03:49:16,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9761 to 5185. [2021-06-05 03:49:16,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5185 states, 5184 states have (on average 4.733989197530864) internal successors, (24541), 5184 states have internal predecessors, (24541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:16,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5185 states to 5185 states and 24541 transitions. [2021-06-05 03:49:16,823 INFO L78 Accepts]: Start accepts. Automaton has 5185 states and 24541 transitions. Word has length 29 [2021-06-05 03:49:16,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:16,823 INFO L482 AbstractCegarLoop]: Abstraction has 5185 states and 24541 transitions. [2021-06-05 03:49:16,823 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:16,823 INFO L276 IsEmpty]: Start isEmpty. Operand 5185 states and 24541 transitions. [2021-06-05 03:49:16,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:16,832 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:16,832 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:16,832 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1239 [2021-06-05 03:49:16,832 INFO L430 AbstractCegarLoop]: === Iteration 1241 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:16,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:16,832 INFO L82 PathProgramCache]: Analyzing trace with hash 674050951, now seen corresponding path program 1236 times [2021-06-05 03:49:16,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:16,832 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509370386] [2021-06-05 03:49:16,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:16,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:16,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:16,960 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:16,960 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509370386] [2021-06-05 03:49:16,960 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509370386] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:16,960 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:16,961 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:16,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180451804] [2021-06-05 03:49:16,961 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:16,961 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:16,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:16,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:16,961 INFO L87 Difference]: Start difference. First operand 5185 states and 24541 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:17,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:17,072 INFO L93 Difference]: Finished difference Result 9904 states and 44499 transitions. [2021-06-05 03:49:17,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:17,072 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:17,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:17,096 INFO L225 Difference]: With dead ends: 9904 [2021-06-05 03:49:17,096 INFO L226 Difference]: Without dead ends: 9345 [2021-06-05 03:49:17,096 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 153.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:17,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9345 states. [2021-06-05 03:49:17,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9345 to 5089. [2021-06-05 03:49:17,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5089 states, 5088 states have (on average 4.752555031446541) internal successors, (24181), 5088 states have internal predecessors, (24181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:17,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5089 states to 5089 states and 24181 transitions. [2021-06-05 03:49:17,311 INFO L78 Accepts]: Start accepts. Automaton has 5089 states and 24181 transitions. Word has length 29 [2021-06-05 03:49:17,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:17,311 INFO L482 AbstractCegarLoop]: Abstraction has 5089 states and 24181 transitions. [2021-06-05 03:49:17,311 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:17,311 INFO L276 IsEmpty]: Start isEmpty. Operand 5089 states and 24181 transitions. [2021-06-05 03:49:17,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:17,319 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:17,320 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:17,320 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1240 [2021-06-05 03:49:17,320 INFO L430 AbstractCegarLoop]: === Iteration 1242 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:17,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:17,320 INFO L82 PathProgramCache]: Analyzing trace with hash -96681175, now seen corresponding path program 1237 times [2021-06-05 03:49:17,320 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:17,320 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113775670] [2021-06-05 03:49:17,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:17,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:17,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:17,430 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:17,430 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113775670] [2021-06-05 03:49:17,430 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113775670] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:17,430 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:17,430 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:17,431 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872170599] [2021-06-05 03:49:17,431 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:17,431 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:17,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:17,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:17,431 INFO L87 Difference]: Start difference. First operand 5089 states and 24181 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:17,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:17,556 INFO L93 Difference]: Finished difference Result 10090 states and 45107 transitions. [2021-06-05 03:49:17,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:17,557 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:17,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:17,582 INFO L225 Difference]: With dead ends: 10090 [2021-06-05 03:49:17,582 INFO L226 Difference]: Without dead ends: 9675 [2021-06-05 03:49:17,582 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 134.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:17,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9675 states. [2021-06-05 03:49:17,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9675 to 5137. [2021-06-05 03:49:17,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5137 states, 5136 states have (on average 4.745521806853582) internal successors, (24373), 5136 states have internal predecessors, (24373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:17,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5137 states to 5137 states and 24373 transitions. [2021-06-05 03:49:17,803 INFO L78 Accepts]: Start accepts. Automaton has 5137 states and 24373 transitions. Word has length 29 [2021-06-05 03:49:17,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:17,803 INFO L482 AbstractCegarLoop]: Abstraction has 5137 states and 24373 transitions. [2021-06-05 03:49:17,803 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:17,803 INFO L276 IsEmpty]: Start isEmpty. Operand 5137 states and 24373 transitions. [2021-06-05 03:49:17,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:17,812 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:17,812 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:17,812 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1241 [2021-06-05 03:49:17,812 INFO L430 AbstractCegarLoop]: === Iteration 1243 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:17,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:17,813 INFO L82 PathProgramCache]: Analyzing trace with hash 314726821, now seen corresponding path program 1238 times [2021-06-05 03:49:17,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:17,813 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323742663] [2021-06-05 03:49:17,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:17,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:17,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:17,927 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:17,927 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323742663] [2021-06-05 03:49:17,927 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323742663] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:17,927 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:17,927 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:17,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092960441] [2021-06-05 03:49:17,927 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:17,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:17,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:17,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:17,928 INFO L87 Difference]: Start difference. First operand 5137 states and 24373 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:18,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:18,024 INFO L93 Difference]: Finished difference Result 10090 states and 45075 transitions. [2021-06-05 03:49:18,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:18,024 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:18,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:18,048 INFO L225 Difference]: With dead ends: 10090 [2021-06-05 03:49:18,048 INFO L226 Difference]: Without dead ends: 9643 [2021-06-05 03:49:18,048 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 120.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:18,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9643 states. [2021-06-05 03:49:18,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9643 to 5105. [2021-06-05 03:49:18,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5105 states, 5104 states have (on average 4.75019592476489) internal successors, (24245), 5104 states have internal predecessors, (24245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:18,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 24245 transitions. [2021-06-05 03:49:18,265 INFO L78 Accepts]: Start accepts. Automaton has 5105 states and 24245 transitions. Word has length 29 [2021-06-05 03:49:18,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:18,265 INFO L482 AbstractCegarLoop]: Abstraction has 5105 states and 24245 transitions. [2021-06-05 03:49:18,265 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:18,265 INFO L276 IsEmpty]: Start isEmpty. Operand 5105 states and 24245 transitions. [2021-06-05 03:49:18,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:18,274 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:18,274 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:18,274 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1242 [2021-06-05 03:49:18,274 INFO L430 AbstractCegarLoop]: === Iteration 1244 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:18,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:18,274 INFO L82 PathProgramCache]: Analyzing trace with hash -2139644921, now seen corresponding path program 1239 times [2021-06-05 03:49:18,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:18,274 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996814190] [2021-06-05 03:49:18,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:18,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:18,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:18,388 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:18,388 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996814190] [2021-06-05 03:49:18,388 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996814190] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:18,388 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:18,388 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:18,388 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298459078] [2021-06-05 03:49:18,388 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:18,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:18,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:18,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:18,388 INFO L87 Difference]: Start difference. First operand 5105 states and 24245 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:18,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:18,509 INFO L93 Difference]: Finished difference Result 10058 states and 44995 transitions. [2021-06-05 03:49:18,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:18,509 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:18,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:18,533 INFO L225 Difference]: With dead ends: 10058 [2021-06-05 03:49:18,533 INFO L226 Difference]: Without dead ends: 9643 [2021-06-05 03:49:18,533 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 140.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:18,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9643 states. [2021-06-05 03:49:18,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9643 to 5153. [2021-06-05 03:49:18,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 5152 states have (on average 4.740100931677019) internal successors, (24421), 5152 states have internal predecessors, (24421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:18,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 24421 transitions. [2021-06-05 03:49:18,750 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 24421 transitions. Word has length 29 [2021-06-05 03:49:18,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:18,750 INFO L482 AbstractCegarLoop]: Abstraction has 5153 states and 24421 transitions. [2021-06-05 03:49:18,750 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:18,750 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 24421 transitions. [2021-06-05 03:49:18,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:18,759 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:18,759 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:18,759 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1243 [2021-06-05 03:49:18,759 INFO L430 AbstractCegarLoop]: === Iteration 1245 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:18,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:18,759 INFO L82 PathProgramCache]: Analyzing trace with hash -651084055, now seen corresponding path program 1240 times [2021-06-05 03:49:18,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:18,759 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047104640] [2021-06-05 03:49:18,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:18,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:18,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:18,870 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:18,870 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047104640] [2021-06-05 03:49:18,871 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047104640] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:18,871 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:18,871 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:18,871 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579712539] [2021-06-05 03:49:18,871 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:18,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:18,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:18,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:18,871 INFO L87 Difference]: Start difference. First operand 5153 states and 24421 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:18,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:18,983 INFO L93 Difference]: Finished difference Result 9786 states and 43986 transitions. [2021-06-05 03:49:18,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:18,983 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:18,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:19,007 INFO L225 Difference]: With dead ends: 9786 [2021-06-05 03:49:19,007 INFO L226 Difference]: Without dead ends: 9275 [2021-06-05 03:49:19,007 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 136.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:19,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9275 states. [2021-06-05 03:49:19,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9275 to 5105. [2021-06-05 03:49:19,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5105 states, 5104 states have (on average 4.747061128526646) internal successors, (24229), 5104 states have internal predecessors, (24229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:19,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 24229 transitions. [2021-06-05 03:49:19,222 INFO L78 Accepts]: Start accepts. Automaton has 5105 states and 24229 transitions. Word has length 29 [2021-06-05 03:49:19,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:19,222 INFO L482 AbstractCegarLoop]: Abstraction has 5105 states and 24229 transitions. [2021-06-05 03:49:19,222 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:19,223 INFO L276 IsEmpty]: Start isEmpty. Operand 5105 states and 24229 transitions. [2021-06-05 03:49:19,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:19,231 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:19,231 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:19,231 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1244 [2021-06-05 03:49:19,231 INFO L430 AbstractCegarLoop]: === Iteration 1246 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:19,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:19,231 INFO L82 PathProgramCache]: Analyzing trace with hash -1503573053, now seen corresponding path program 1241 times [2021-06-05 03:49:19,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:19,231 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893887907] [2021-06-05 03:49:19,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:19,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:19,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:19,344 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:19,344 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893887907] [2021-06-05 03:49:19,344 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893887907] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:19,344 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:19,344 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:19,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107909227] [2021-06-05 03:49:19,344 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:19,344 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:19,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:19,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:19,344 INFO L87 Difference]: Start difference. First operand 5105 states and 24229 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:19,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:19,441 INFO L93 Difference]: Finished difference Result 10058 states and 44979 transitions. [2021-06-05 03:49:19,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:19,441 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:19,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:19,465 INFO L225 Difference]: With dead ends: 10058 [2021-06-05 03:49:19,465 INFO L226 Difference]: Without dead ends: 9643 [2021-06-05 03:49:19,465 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 120.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:19,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9643 states. [2021-06-05 03:49:19,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9643 to 5153. [2021-06-05 03:49:19,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 5152 states have (on average 4.736995341614906) internal successors, (24405), 5152 states have internal predecessors, (24405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:19,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 24405 transitions. [2021-06-05 03:49:19,679 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 24405 transitions. Word has length 29 [2021-06-05 03:49:19,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:19,679 INFO L482 AbstractCegarLoop]: Abstraction has 5153 states and 24405 transitions. [2021-06-05 03:49:19,679 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:19,680 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 24405 transitions. [2021-06-05 03:49:19,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:19,688 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:19,688 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:19,688 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1245 [2021-06-05 03:49:19,688 INFO L430 AbstractCegarLoop]: === Iteration 1247 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:19,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:19,688 INFO L82 PathProgramCache]: Analyzing trace with hash 1296715685, now seen corresponding path program 1242 times [2021-06-05 03:49:19,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:19,688 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522478999] [2021-06-05 03:49:19,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:19,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:19,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:19,800 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:19,800 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522478999] [2021-06-05 03:49:19,800 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522478999] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:19,800 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:19,800 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:19,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044546952] [2021-06-05 03:49:19,800 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:19,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:19,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:19,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:19,800 INFO L87 Difference]: Start difference. First operand 5153 states and 24405 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:19,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:19,918 INFO L93 Difference]: Finished difference Result 9786 states and 43970 transitions. [2021-06-05 03:49:19,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:19,918 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:19,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:19,941 INFO L225 Difference]: With dead ends: 9786 [2021-06-05 03:49:19,941 INFO L226 Difference]: Without dead ends: 9259 [2021-06-05 03:49:19,941 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 135.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:20,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9259 states. [2021-06-05 03:49:20,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9259 to 5089. [2021-06-05 03:49:20,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5089 states, 5088 states have (on average 4.7509827044025155) internal successors, (24173), 5088 states have internal predecessors, (24173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:20,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5089 states to 5089 states and 24173 transitions. [2021-06-05 03:49:20,153 INFO L78 Accepts]: Start accepts. Automaton has 5089 states and 24173 transitions. Word has length 29 [2021-06-05 03:49:20,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:20,153 INFO L482 AbstractCegarLoop]: Abstraction has 5089 states and 24173 transitions. [2021-06-05 03:49:20,153 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:20,153 INFO L276 IsEmpty]: Start isEmpty. Operand 5089 states and 24173 transitions. [2021-06-05 03:49:20,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:20,162 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:20,162 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:20,162 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1246 [2021-06-05 03:49:20,162 INFO L430 AbstractCegarLoop]: === Iteration 1248 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:20,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:20,162 INFO L82 PathProgramCache]: Analyzing trace with hash -2015463357, now seen corresponding path program 1243 times [2021-06-05 03:49:20,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:20,162 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885791143] [2021-06-05 03:49:20,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:20,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:20,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:20,290 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:20,290 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885791143] [2021-06-05 03:49:20,290 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885791143] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:20,291 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:20,291 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:20,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377408447] [2021-06-05 03:49:20,291 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:20,291 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:20,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:20,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:20,291 INFO L87 Difference]: Start difference. First operand 5089 states and 24173 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:20,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:20,397 INFO L93 Difference]: Finished difference Result 10324 states and 46154 transitions. [2021-06-05 03:49:20,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:20,398 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:20,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:20,423 INFO L225 Difference]: With dead ends: 10324 [2021-06-05 03:49:20,423 INFO L226 Difference]: Without dead ends: 9847 [2021-06-05 03:49:20,423 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 153.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:20,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9847 states. [2021-06-05 03:49:20,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9847 to 5161. [2021-06-05 03:49:20,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.7428294573643415) internal successors, (24473), 5160 states have internal predecessors, (24473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:20,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24473 transitions. [2021-06-05 03:49:20,644 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24473 transitions. Word has length 29 [2021-06-05 03:49:20,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:20,644 INFO L482 AbstractCegarLoop]: Abstraction has 5161 states and 24473 transitions. [2021-06-05 03:49:20,644 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:20,644 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24473 transitions. [2021-06-05 03:49:20,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:20,652 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:20,652 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:20,652 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1247 [2021-06-05 03:49:20,652 INFO L430 AbstractCegarLoop]: === Iteration 1249 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:20,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:20,653 INFO L82 PathProgramCache]: Analyzing trace with hash -934400731, now seen corresponding path program 1244 times [2021-06-05 03:49:20,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:20,653 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779867017] [2021-06-05 03:49:20,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:20,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:20,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:20,781 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:20,782 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779867017] [2021-06-05 03:49:20,782 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779867017] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:20,782 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:20,782 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:20,782 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033168052] [2021-06-05 03:49:20,782 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:20,782 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:20,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:20,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:20,782 INFO L87 Difference]: Start difference. First operand 5161 states and 24473 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:20,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:20,879 INFO L93 Difference]: Finished difference Result 10262 states and 45837 transitions. [2021-06-05 03:49:20,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:20,879 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:20,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:20,903 INFO L225 Difference]: With dead ends: 10262 [2021-06-05 03:49:20,904 INFO L226 Difference]: Without dead ends: 9799 [2021-06-05 03:49:20,904 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 137.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:21,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9799 states. [2021-06-05 03:49:21,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9799 to 5113. [2021-06-05 03:49:21,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5113 states, 5112 states have (on average 4.748239436619718) internal successors, (24273), 5112 states have internal predecessors, (24273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:21,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5113 states to 5113 states and 24273 transitions. [2021-06-05 03:49:21,119 INFO L78 Accepts]: Start accepts. Automaton has 5113 states and 24273 transitions. Word has length 29 [2021-06-05 03:49:21,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:21,119 INFO L482 AbstractCegarLoop]: Abstraction has 5113 states and 24273 transitions. [2021-06-05 03:49:21,119 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:21,119 INFO L276 IsEmpty]: Start isEmpty. Operand 5113 states and 24273 transitions. [2021-06-05 03:49:21,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:21,128 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:21,128 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:21,128 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1248 [2021-06-05 03:49:21,128 INFO L430 AbstractCegarLoop]: === Iteration 1250 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:21,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:21,128 INFO L82 PathProgramCache]: Analyzing trace with hash 412486565, now seen corresponding path program 1245 times [2021-06-05 03:49:21,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:21,128 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583380432] [2021-06-05 03:49:21,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:21,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:21,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:21,260 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:21,260 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583380432] [2021-06-05 03:49:21,260 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583380432] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:21,260 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:21,260 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:21,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856076382] [2021-06-05 03:49:21,260 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:21,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:21,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:21,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:21,261 INFO L87 Difference]: Start difference. First operand 5113 states and 24273 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:21,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:21,374 INFO L93 Difference]: Finished difference Result 10238 states and 45809 transitions. [2021-06-05 03:49:21,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:21,374 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:21,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:21,398 INFO L225 Difference]: With dead ends: 10238 [2021-06-05 03:49:21,398 INFO L226 Difference]: Without dead ends: 9761 [2021-06-05 03:49:21,398 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 157.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:21,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9761 states. [2021-06-05 03:49:21,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9761 to 5185. [2021-06-05 03:49:21,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5185 states, 5184 states have (on average 4.735532407407407) internal successors, (24549), 5184 states have internal predecessors, (24549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:21,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5185 states to 5185 states and 24549 transitions. [2021-06-05 03:49:21,611 INFO L78 Accepts]: Start accepts. Automaton has 5185 states and 24549 transitions. Word has length 29 [2021-06-05 03:49:21,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:21,611 INFO L482 AbstractCegarLoop]: Abstraction has 5185 states and 24549 transitions. [2021-06-05 03:49:21,611 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:21,612 INFO L276 IsEmpty]: Start isEmpty. Operand 5185 states and 24549 transitions. [2021-06-05 03:49:21,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:21,620 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:21,620 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:21,620 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1249 [2021-06-05 03:49:21,620 INFO L430 AbstractCegarLoop]: === Iteration 1251 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:21,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:21,620 INFO L82 PathProgramCache]: Analyzing trace with hash -2095098971, now seen corresponding path program 1246 times [2021-06-05 03:49:21,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:21,620 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055394895] [2021-06-05 03:49:21,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:21,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:21,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:21,750 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:21,750 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055394895] [2021-06-05 03:49:21,750 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055394895] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:21,750 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:21,750 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:21,751 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063416485] [2021-06-05 03:49:21,751 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:21,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:21,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:21,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:21,751 INFO L87 Difference]: Start difference. First operand 5185 states and 24549 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:21,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:21,858 INFO L93 Difference]: Finished difference Result 9904 states and 44507 transitions. [2021-06-05 03:49:21,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:21,858 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:21,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:21,881 INFO L225 Difference]: With dead ends: 9904 [2021-06-05 03:49:21,881 INFO L226 Difference]: Without dead ends: 9369 [2021-06-05 03:49:21,881 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 155.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:21,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9369 states. [2021-06-05 03:49:22,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9369 to 5113. [2021-06-05 03:49:22,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5113 states, 5112 states have (on average 4.743544600938967) internal successors, (24249), 5112 states have internal predecessors, (24249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:22,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5113 states to 5113 states and 24249 transitions. [2021-06-05 03:49:22,096 INFO L78 Accepts]: Start accepts. Automaton has 5113 states and 24249 transitions. Word has length 29 [2021-06-05 03:49:22,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:22,096 INFO L482 AbstractCegarLoop]: Abstraction has 5113 states and 24249 transitions. [2021-06-05 03:49:22,096 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:22,096 INFO L276 IsEmpty]: Start isEmpty. Operand 5113 states and 24249 transitions. [2021-06-05 03:49:22,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:22,104 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:22,104 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:22,104 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1250 [2021-06-05 03:49:22,105 INFO L430 AbstractCegarLoop]: === Iteration 1252 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:22,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:22,105 INFO L82 PathProgramCache]: Analyzing trace with hash 800491527, now seen corresponding path program 1247 times [2021-06-05 03:49:22,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:22,105 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153739741] [2021-06-05 03:49:22,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:22,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:22,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:22,225 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:22,225 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153739741] [2021-06-05 03:49:22,225 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153739741] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:22,226 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:22,226 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:22,226 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305781672] [2021-06-05 03:49:22,226 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:22,226 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:22,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:22,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:22,226 INFO L87 Difference]: Start difference. First operand 5113 states and 24249 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:22,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:22,322 INFO L93 Difference]: Finished difference Result 10152 states and 45392 transitions. [2021-06-05 03:49:22,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:22,322 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:22,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:22,346 INFO L225 Difference]: With dead ends: 10152 [2021-06-05 03:49:22,346 INFO L226 Difference]: Without dead ends: 9737 [2021-06-05 03:49:22,346 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:22,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9737 states. [2021-06-05 03:49:22,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9737 to 5161. [2021-06-05 03:49:22,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.733527131782946) internal successors, (24425), 5160 states have internal predecessors, (24425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:22,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24425 transitions. [2021-06-05 03:49:22,561 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24425 transitions. Word has length 29 [2021-06-05 03:49:22,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:22,562 INFO L482 AbstractCegarLoop]: Abstraction has 5161 states and 24425 transitions. [2021-06-05 03:49:22,562 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:22,562 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24425 transitions. [2021-06-05 03:49:22,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:22,570 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:22,570 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:22,570 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1251 [2021-06-05 03:49:22,570 INFO L430 AbstractCegarLoop]: === Iteration 1253 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:22,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:22,570 INFO L82 PathProgramCache]: Analyzing trace with hash 1710096485, now seen corresponding path program 1248 times [2021-06-05 03:49:22,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:22,570 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044285604] [2021-06-05 03:49:22,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:22,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:22,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:22,693 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:22,693 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044285604] [2021-06-05 03:49:22,693 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044285604] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:22,693 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:22,693 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:22,693 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769440666] [2021-06-05 03:49:22,693 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:22,693 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:22,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:22,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:22,693 INFO L87 Difference]: Start difference. First operand 5161 states and 24425 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:22,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:22,809 INFO L93 Difference]: Finished difference Result 9880 states and 44383 transitions. [2021-06-05 03:49:22,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:22,810 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:22,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:22,833 INFO L225 Difference]: With dead ends: 9880 [2021-06-05 03:49:22,833 INFO L226 Difference]: Without dead ends: 9337 [2021-06-05 03:49:22,833 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 147.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:22,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9337 states. [2021-06-05 03:49:23,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9337 to 5081. [2021-06-05 03:49:23,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5081 states, 5080 states have (on average 4.753740157480315) internal successors, (24149), 5080 states have internal predecessors, (24149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:23,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5081 states to 5081 states and 24149 transitions. [2021-06-05 03:49:23,046 INFO L78 Accepts]: Start accepts. Automaton has 5081 states and 24149 transitions. Word has length 29 [2021-06-05 03:49:23,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:23,046 INFO L482 AbstractCegarLoop]: Abstraction has 5081 states and 24149 transitions. [2021-06-05 03:49:23,046 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:23,046 INFO L276 IsEmpty]: Start isEmpty. Operand 5081 states and 24149 transitions. [2021-06-05 03:49:23,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:23,055 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:23,055 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:23,055 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1252 [2021-06-05 03:49:23,055 INFO L430 AbstractCegarLoop]: === Iteration 1254 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:23,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:23,055 INFO L82 PathProgramCache]: Analyzing trace with hash 1210645161, now seen corresponding path program 1249 times [2021-06-05 03:49:23,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:23,055 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815873452] [2021-06-05 03:49:23,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:23,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:23,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:23,181 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:23,181 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815873452] [2021-06-05 03:49:23,181 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815873452] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:23,182 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:23,182 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:23,182 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979768554] [2021-06-05 03:49:23,182 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:23,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:23,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:23,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:23,182 INFO L87 Difference]: Start difference. First operand 5081 states and 24149 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:23,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:23,296 INFO L93 Difference]: Finished difference Result 10482 states and 46943 transitions. [2021-06-05 03:49:23,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:23,296 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:23,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:23,322 INFO L225 Difference]: With dead ends: 10482 [2021-06-05 03:49:23,322 INFO L226 Difference]: Without dead ends: 10067 [2021-06-05 03:49:23,322 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 152.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:23,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10067 states. [2021-06-05 03:49:23,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10067 to 5165. [2021-06-05 03:49:23,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5165 states, 5164 states have (on average 4.747676219984508) internal successors, (24517), 5164 states have internal predecessors, (24517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:23,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5165 states to 5165 states and 24517 transitions. [2021-06-05 03:49:23,541 INFO L78 Accepts]: Start accepts. Automaton has 5165 states and 24517 transitions. Word has length 29 [2021-06-05 03:49:23,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:23,541 INFO L482 AbstractCegarLoop]: Abstraction has 5165 states and 24517 transitions. [2021-06-05 03:49:23,541 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:23,541 INFO L276 IsEmpty]: Start isEmpty. Operand 5165 states and 24517 transitions. [2021-06-05 03:49:23,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:23,550 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:23,550 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:23,550 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1253 [2021-06-05 03:49:23,550 INFO L430 AbstractCegarLoop]: === Iteration 1255 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:23,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:23,550 INFO L82 PathProgramCache]: Analyzing trace with hash 1927308107, now seen corresponding path program 1250 times [2021-06-05 03:49:23,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:23,550 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054654443] [2021-06-05 03:49:23,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:23,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:23,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:23,676 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:23,676 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054654443] [2021-06-05 03:49:23,676 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054654443] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:23,676 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:23,676 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:23,676 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647302211] [2021-06-05 03:49:23,676 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:23,676 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:23,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:23,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:23,676 INFO L87 Difference]: Start difference. First operand 5165 states and 24517 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:23,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:23,794 INFO L93 Difference]: Finished difference Result 10544 states and 47164 transitions. [2021-06-05 03:49:23,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:23,794 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:23,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:23,819 INFO L225 Difference]: With dead ends: 10544 [2021-06-05 03:49:23,819 INFO L226 Difference]: Without dead ends: 10019 [2021-06-05 03:49:23,819 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 152.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:23,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10019 states. [2021-06-05 03:49:24,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10019 to 5117. [2021-06-05 03:49:24,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.75312744331509) internal successors, (24317), 5116 states have internal predecessors, (24317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:24,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24317 transitions. [2021-06-05 03:49:24,040 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24317 transitions. Word has length 29 [2021-06-05 03:49:24,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:24,040 INFO L482 AbstractCegarLoop]: Abstraction has 5117 states and 24317 transitions. [2021-06-05 03:49:24,040 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:24,040 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24317 transitions. [2021-06-05 03:49:24,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:24,049 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:24,049 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:24,049 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1254 [2021-06-05 03:49:24,049 INFO L430 AbstractCegarLoop]: === Iteration 1256 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:24,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:24,049 INFO L82 PathProgramCache]: Analyzing trace with hash -1991351639, now seen corresponding path program 1251 times [2021-06-05 03:49:24,049 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:24,049 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569605571] [2021-06-05 03:49:24,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:24,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:24,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:24,177 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:24,177 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569605571] [2021-06-05 03:49:24,178 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569605571] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:24,178 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:24,178 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:24,178 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937251777] [2021-06-05 03:49:24,178 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:24,178 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:24,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:24,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:24,178 INFO L87 Difference]: Start difference. First operand 5117 states and 24317 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:24,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:24,305 INFO L93 Difference]: Finished difference Result 10480 states and 46914 transitions. [2021-06-05 03:49:24,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:24,305 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:24,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:24,330 INFO L225 Difference]: With dead ends: 10480 [2021-06-05 03:49:24,330 INFO L226 Difference]: Without dead ends: 10065 [2021-06-05 03:49:24,330 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 153.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:24,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10065 states. [2021-06-05 03:49:24,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10065 to 5165. [2021-06-05 03:49:24,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5165 states, 5164 states have (on average 4.7430286599535245) internal successors, (24493), 5164 states have internal predecessors, (24493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:24,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5165 states to 5165 states and 24493 transitions. [2021-06-05 03:49:24,624 INFO L78 Accepts]: Start accepts. Automaton has 5165 states and 24493 transitions. Word has length 29 [2021-06-05 03:49:24,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:24,624 INFO L482 AbstractCegarLoop]: Abstraction has 5165 states and 24493 transitions. [2021-06-05 03:49:24,625 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:24,625 INFO L276 IsEmpty]: Start isEmpty. Operand 5165 states and 24493 transitions. [2021-06-05 03:49:24,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:24,634 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:24,634 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:24,634 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1255 [2021-06-05 03:49:24,634 INFO L430 AbstractCegarLoop]: === Iteration 1257 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:24,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:24,634 INFO L82 PathProgramCache]: Analyzing trace with hash -961786263, now seen corresponding path program 1252 times [2021-06-05 03:49:24,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:24,634 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291453851] [2021-06-05 03:49:24,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:24,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:24,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:24,761 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:24,761 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291453851] [2021-06-05 03:49:24,761 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291453851] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:24,761 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:24,761 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:24,761 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874523373] [2021-06-05 03:49:24,761 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:24,761 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:24,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:24,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:24,761 INFO L87 Difference]: Start difference. First operand 5165 states and 24493 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:24,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:24,889 INFO L93 Difference]: Finished difference Result 10540 states and 47130 transitions. [2021-06-05 03:49:24,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:24,889 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:24,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:24,914 INFO L225 Difference]: With dead ends: 10540 [2021-06-05 03:49:24,914 INFO L226 Difference]: Without dead ends: 10017 [2021-06-05 03:49:24,914 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 151.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:25,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10017 states. [2021-06-05 03:49:25,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10017 to 5117. [2021-06-05 03:49:25,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.748436278342455) internal successors, (24293), 5116 states have internal predecessors, (24293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:25,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24293 transitions. [2021-06-05 03:49:25,132 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24293 transitions. Word has length 29 [2021-06-05 03:49:25,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:25,132 INFO L482 AbstractCegarLoop]: Abstraction has 5117 states and 24293 transitions. [2021-06-05 03:49:25,132 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:25,132 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24293 transitions. [2021-06-05 03:49:25,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:25,140 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:25,140 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:25,141 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1256 [2021-06-05 03:49:25,141 INFO L430 AbstractCegarLoop]: === Iteration 1258 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:25,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:25,141 INFO L82 PathProgramCache]: Analyzing trace with hash -787859829, now seen corresponding path program 1253 times [2021-06-05 03:49:25,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:25,141 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455127189] [2021-06-05 03:49:25,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:25,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:25,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:25,255 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:25,255 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455127189] [2021-06-05 03:49:25,255 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455127189] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:25,255 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:25,255 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:25,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919558712] [2021-06-05 03:49:25,255 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:25,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:25,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:25,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:25,255 INFO L87 Difference]: Start difference. First operand 5117 states and 24293 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:25,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:25,359 INFO L93 Difference]: Finished difference Result 10634 states and 47575 transitions. [2021-06-05 03:49:25,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:25,360 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:25,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:25,385 INFO L225 Difference]: With dead ends: 10634 [2021-06-05 03:49:25,385 INFO L226 Difference]: Without dead ends: 10157 [2021-06-05 03:49:25,385 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 138.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:25,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10157 states. [2021-06-05 03:49:25,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10157 to 5195. [2021-06-05 03:49:25,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5195 states, 5194 states have (on average 4.7335386984982675) internal successors, (24586), 5194 states have internal predecessors, (24586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:25,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5195 states to 5195 states and 24586 transitions. [2021-06-05 03:49:25,604 INFO L78 Accepts]: Start accepts. Automaton has 5195 states and 24586 transitions. Word has length 29 [2021-06-05 03:49:25,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:25,604 INFO L482 AbstractCegarLoop]: Abstraction has 5195 states and 24586 transitions. [2021-06-05 03:49:25,604 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:25,604 INFO L276 IsEmpty]: Start isEmpty. Operand 5195 states and 24586 transitions. [2021-06-05 03:49:25,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:25,613 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:25,613 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:25,613 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1257 [2021-06-05 03:49:25,613 INFO L430 AbstractCegarLoop]: === Iteration 1259 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:25,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:25,613 INFO L82 PathProgramCache]: Analyzing trace with hash 2114962921, now seen corresponding path program 1254 times [2021-06-05 03:49:25,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:25,613 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49881834] [2021-06-05 03:49:25,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:25,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:25,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:25,726 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:25,726 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49881834] [2021-06-05 03:49:25,726 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49881834] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:25,726 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:25,726 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:25,726 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269205601] [2021-06-05 03:49:25,727 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:25,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:25,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:25,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:25,727 INFO L87 Difference]: Start difference. First operand 5195 states and 24586 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:25,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:25,834 INFO L93 Difference]: Finished difference Result 10632 states and 47492 transitions. [2021-06-05 03:49:25,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:25,835 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:25,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:25,860 INFO L225 Difference]: With dead ends: 10632 [2021-06-05 03:49:25,860 INFO L226 Difference]: Without dead ends: 10055 [2021-06-05 03:49:25,860 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 138.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:25,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10055 states. [2021-06-05 03:49:26,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10055 to 5093. [2021-06-05 03:49:26,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5093 states, 5092 states have (on average 4.753534956794972) internal successors, (24205), 5092 states have internal predecessors, (24205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:26,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5093 states to 5093 states and 24205 transitions. [2021-06-05 03:49:26,078 INFO L78 Accepts]: Start accepts. Automaton has 5093 states and 24205 transitions. Word has length 29 [2021-06-05 03:49:26,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:26,078 INFO L482 AbstractCegarLoop]: Abstraction has 5093 states and 24205 transitions. [2021-06-05 03:49:26,078 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:26,078 INFO L276 IsEmpty]: Start isEmpty. Operand 5093 states and 24205 transitions. [2021-06-05 03:49:26,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:26,087 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:26,087 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:26,087 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1258 [2021-06-05 03:49:26,087 INFO L430 AbstractCegarLoop]: === Iteration 1260 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:26,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:26,087 INFO L82 PathProgramCache]: Analyzing trace with hash 1695615879, now seen corresponding path program 1255 times [2021-06-05 03:49:26,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:26,087 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509016029] [2021-06-05 03:49:26,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:26,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:26,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:26,207 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:26,207 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509016029] [2021-06-05 03:49:26,207 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509016029] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:26,207 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:26,207 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:26,207 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999502722] [2021-06-05 03:49:26,207 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:26,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:26,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:26,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:26,207 INFO L87 Difference]: Start difference. First operand 5093 states and 24205 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:26,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:26,318 INFO L93 Difference]: Finished difference Result 10416 states and 46644 transitions. [2021-06-05 03:49:26,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:26,318 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:26,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:26,344 INFO L225 Difference]: With dead ends: 10416 [2021-06-05 03:49:26,345 INFO L226 Difference]: Without dead ends: 10001 [2021-06-05 03:49:26,345 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 144.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:26,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10001 states. [2021-06-05 03:49:26,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10001 to 5165. [2021-06-05 03:49:26,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5165 states, 5164 states have (on average 4.745352439969016) internal successors, (24505), 5164 states have internal predecessors, (24505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:26,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5165 states to 5165 states and 24505 transitions. [2021-06-05 03:49:26,571 INFO L78 Accepts]: Start accepts. Automaton has 5165 states and 24505 transitions. Word has length 29 [2021-06-05 03:49:26,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:26,571 INFO L482 AbstractCegarLoop]: Abstraction has 5165 states and 24505 transitions. [2021-06-05 03:49:26,571 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:26,571 INFO L276 IsEmpty]: Start isEmpty. Operand 5165 states and 24505 transitions. [2021-06-05 03:49:26,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:26,580 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:26,580 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:26,580 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1259 [2021-06-05 03:49:26,580 INFO L430 AbstractCegarLoop]: === Iteration 1261 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:26,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:26,580 INFO L82 PathProgramCache]: Analyzing trace with hash -1882688471, now seen corresponding path program 1256 times [2021-06-05 03:49:26,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:26,580 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164380950] [2021-06-05 03:49:26,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:26,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:26,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:26,703 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:26,703 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164380950] [2021-06-05 03:49:26,703 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164380950] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:26,703 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:26,703 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:26,704 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283536625] [2021-06-05 03:49:26,704 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:26,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:26,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:26,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:26,704 INFO L87 Difference]: Start difference. First operand 5165 states and 24505 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:26,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:26,813 INFO L93 Difference]: Finished difference Result 10478 states and 46865 transitions. [2021-06-05 03:49:26,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:26,813 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:26,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:26,838 INFO L225 Difference]: With dead ends: 10478 [2021-06-05 03:49:26,838 INFO L226 Difference]: Without dead ends: 9953 [2021-06-05 03:49:26,838 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 149.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:26,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9953 states. [2021-06-05 03:49:27,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9953 to 5117. [2021-06-05 03:49:27,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.750781860828773) internal successors, (24305), 5116 states have internal predecessors, (24305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:27,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24305 transitions. [2021-06-05 03:49:27,060 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24305 transitions. Word has length 29 [2021-06-05 03:49:27,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:27,060 INFO L482 AbstractCegarLoop]: Abstraction has 5117 states and 24305 transitions. [2021-06-05 03:49:27,060 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:27,060 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24305 transitions. [2021-06-05 03:49:27,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:27,069 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:27,069 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:27,069 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1260 [2021-06-05 03:49:27,069 INFO L430 AbstractCegarLoop]: === Iteration 1262 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:27,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:27,069 INFO L82 PathProgramCache]: Analyzing trace with hash -1665523031, now seen corresponding path program 1257 times [2021-06-05 03:49:27,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:27,070 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569111177] [2021-06-05 03:49:27,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:27,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:27,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:27,179 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:27,179 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569111177] [2021-06-05 03:49:27,179 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569111177] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:27,179 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:27,179 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:27,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128041929] [2021-06-05 03:49:27,180 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:27,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:27,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:27,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:27,180 INFO L87 Difference]: Start difference. First operand 5117 states and 24305 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:27,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:27,291 INFO L93 Difference]: Finished difference Result 10306 states and 46175 transitions. [2021-06-05 03:49:27,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:27,292 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:27,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:27,317 INFO L225 Difference]: With dead ends: 10306 [2021-06-05 03:49:27,317 INFO L226 Difference]: Without dead ends: 9891 [2021-06-05 03:49:27,317 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 135.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:27,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9891 states. [2021-06-05 03:49:27,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9891 to 5165. [2021-06-05 03:49:27,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5165 states, 5164 states have (on average 4.740704879938033) internal successors, (24481), 5164 states have internal predecessors, (24481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:27,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5165 states to 5165 states and 24481 transitions. [2021-06-05 03:49:27,538 INFO L78 Accepts]: Start accepts. Automaton has 5165 states and 24481 transitions. Word has length 29 [2021-06-05 03:49:27,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:27,538 INFO L482 AbstractCegarLoop]: Abstraction has 5165 states and 24481 transitions. [2021-06-05 03:49:27,538 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:27,538 INFO L276 IsEmpty]: Start isEmpty. Operand 5165 states and 24481 transitions. [2021-06-05 03:49:27,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:27,547 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:27,547 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:27,547 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1261 [2021-06-05 03:49:27,547 INFO L430 AbstractCegarLoop]: === Iteration 1263 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:27,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:27,548 INFO L82 PathProgramCache]: Analyzing trace with hash -110899607, now seen corresponding path program 1258 times [2021-06-05 03:49:27,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:27,548 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708563564] [2021-06-05 03:49:27,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:27,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:27,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:27,658 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:27,658 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708563564] [2021-06-05 03:49:27,658 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708563564] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:27,658 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:27,658 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:27,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827198883] [2021-06-05 03:49:27,658 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:27,658 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:27,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:27,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:27,658 INFO L87 Difference]: Start difference. First operand 5165 states and 24481 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:27,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:27,775 INFO L93 Difference]: Finished difference Result 10034 states and 45166 transitions. [2021-06-05 03:49:27,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:27,775 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:27,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:27,799 INFO L225 Difference]: With dead ends: 10034 [2021-06-05 03:49:27,799 INFO L226 Difference]: Without dead ends: 9523 [2021-06-05 03:49:27,800 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 134.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:27,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9523 states. [2021-06-05 03:49:27,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9523 to 5117. [2021-06-05 03:49:28,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.746090695856138) internal successors, (24281), 5116 states have internal predecessors, (24281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:28,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24281 transitions. [2021-06-05 03:49:28,017 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24281 transitions. Word has length 29 [2021-06-05 03:49:28,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:28,017 INFO L482 AbstractCegarLoop]: Abstraction has 5117 states and 24281 transitions. [2021-06-05 03:49:28,017 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:28,017 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24281 transitions. [2021-06-05 03:49:28,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:28,026 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:28,026 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:28,026 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1262 [2021-06-05 03:49:28,026 INFO L430 AbstractCegarLoop]: === Iteration 1264 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:28,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:28,026 INFO L82 PathProgramCache]: Analyzing trace with hash -1281370485, now seen corresponding path program 1259 times [2021-06-05 03:49:28,026 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:28,026 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658437111] [2021-06-05 03:49:28,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:28,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:28,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:28,150 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:28,150 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658437111] [2021-06-05 03:49:28,150 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658437111] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:28,150 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:28,150 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:28,150 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823060517] [2021-06-05 03:49:28,150 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:28,151 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:28,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:28,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:28,151 INFO L87 Difference]: Start difference. First operand 5117 states and 24281 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:28,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:28,262 INFO L93 Difference]: Finished difference Result 10392 states and 46544 transitions. [2021-06-05 03:49:28,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:28,262 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:28,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:28,287 INFO L225 Difference]: With dead ends: 10392 [2021-06-05 03:49:28,287 INFO L226 Difference]: Without dead ends: 9915 [2021-06-05 03:49:28,287 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 149.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:28,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9915 states. [2021-06-05 03:49:28,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9915 to 5189. [2021-06-05 03:49:28,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5189 states, 5188 states have (on average 4.733423284502699) internal successors, (24557), 5188 states have internal predecessors, (24557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:28,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5189 states to 5189 states and 24557 transitions. [2021-06-05 03:49:28,514 INFO L78 Accepts]: Start accepts. Automaton has 5189 states and 24557 transitions. Word has length 29 [2021-06-05 03:49:28,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:28,514 INFO L482 AbstractCegarLoop]: Abstraction has 5189 states and 24557 transitions. [2021-06-05 03:49:28,514 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:28,514 INFO L276 IsEmpty]: Start isEmpty. Operand 5189 states and 24557 transitions. [2021-06-05 03:49:28,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:28,523 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:28,523 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:28,523 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1263 [2021-06-05 03:49:28,523 INFO L430 AbstractCegarLoop]: === Iteration 1265 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:28,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:28,523 INFO L82 PathProgramCache]: Analyzing trace with hash -1371130135, now seen corresponding path program 1260 times [2021-06-05 03:49:28,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:28,523 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655420724] [2021-06-05 03:49:28,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:28,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:28,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:28,649 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:28,649 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655420724] [2021-06-05 03:49:28,650 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655420724] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:28,650 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:28,650 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:28,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953688462] [2021-06-05 03:49:28,650 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:28,650 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:28,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:28,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:28,650 INFO L87 Difference]: Start difference. First operand 5189 states and 24557 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:28,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:28,760 INFO L93 Difference]: Finished difference Result 10058 states and 45242 transitions. [2021-06-05 03:49:28,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:28,761 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:28,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:28,785 INFO L225 Difference]: With dead ends: 10058 [2021-06-05 03:49:28,785 INFO L226 Difference]: Without dead ends: 9499 [2021-06-05 03:49:28,786 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 151.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:28,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9499 states. [2021-06-05 03:49:28,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9499 to 5093. [2021-06-05 03:49:28,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5093 states, 5092 states have (on average 4.751178318931657) internal successors, (24193), 5092 states have internal predecessors, (24193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:29,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5093 states to 5093 states and 24193 transitions. [2021-06-05 03:49:29,003 INFO L78 Accepts]: Start accepts. Automaton has 5093 states and 24193 transitions. Word has length 29 [2021-06-05 03:49:29,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:29,003 INFO L482 AbstractCegarLoop]: Abstraction has 5093 states and 24193 transitions. [2021-06-05 03:49:29,003 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:29,003 INFO L276 IsEmpty]: Start isEmpty. Operand 5093 states and 24193 transitions. [2021-06-05 03:49:29,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:29,011 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:29,011 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:29,011 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1264 [2021-06-05 03:49:29,011 INFO L430 AbstractCegarLoop]: === Iteration 1266 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:29,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:29,012 INFO L82 PathProgramCache]: Analyzing trace with hash 2113120937, now seen corresponding path program 1261 times [2021-06-05 03:49:29,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:29,012 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366872272] [2021-06-05 03:49:29,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:29,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:29,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:29,130 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:29,130 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366872272] [2021-06-05 03:49:29,130 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366872272] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:29,130 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:29,130 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:29,130 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888717185] [2021-06-05 03:49:29,130 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:29,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:29,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:29,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:29,131 INFO L87 Difference]: Start difference. First operand 5093 states and 24193 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:29,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:29,240 INFO L93 Difference]: Finished difference Result 10412 states and 46622 transitions. [2021-06-05 03:49:29,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:29,240 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:29,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:29,264 INFO L225 Difference]: With dead ends: 10412 [2021-06-05 03:49:29,264 INFO L226 Difference]: Without dead ends: 9997 [2021-06-05 03:49:29,265 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 144.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:29,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9997 states. [2021-06-05 03:49:29,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9997 to 5165. [2021-06-05 03:49:29,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5165 states, 5164 states have (on average 4.7430286599535245) internal successors, (24493), 5164 states have internal predecessors, (24493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:29,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5165 states to 5165 states and 24493 transitions. [2021-06-05 03:49:29,484 INFO L78 Accepts]: Start accepts. Automaton has 5165 states and 24493 transitions. Word has length 29 [2021-06-05 03:49:29,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:29,484 INFO L482 AbstractCegarLoop]: Abstraction has 5165 states and 24493 transitions. [2021-06-05 03:49:29,484 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:29,484 INFO L276 IsEmpty]: Start isEmpty. Operand 5165 states and 24493 transitions. [2021-06-05 03:49:29,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:29,493 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:29,493 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:29,493 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1265 [2021-06-05 03:49:29,493 INFO L430 AbstractCegarLoop]: === Iteration 1267 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:29,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:29,493 INFO L82 PathProgramCache]: Analyzing trace with hash -1152280983, now seen corresponding path program 1262 times [2021-06-05 03:49:29,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:29,493 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174483629] [2021-06-05 03:49:29,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:29,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:29,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:29,610 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:29,610 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174483629] [2021-06-05 03:49:29,610 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174483629] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:29,610 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:29,610 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:29,610 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745122308] [2021-06-05 03:49:29,610 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:29,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:29,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:29,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:29,610 INFO L87 Difference]: Start difference. First operand 5165 states and 24493 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:29,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:29,721 INFO L93 Difference]: Finished difference Result 10472 states and 46838 transitions. [2021-06-05 03:49:29,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:29,721 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:29,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:29,746 INFO L225 Difference]: With dead ends: 10472 [2021-06-05 03:49:29,746 INFO L226 Difference]: Without dead ends: 9949 [2021-06-05 03:49:29,746 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 142.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:29,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9949 states. [2021-06-05 03:49:29,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9949 to 5117. [2021-06-05 03:49:29,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.748436278342455) internal successors, (24293), 5116 states have internal predecessors, (24293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:29,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24293 transitions. [2021-06-05 03:49:29,964 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24293 transitions. Word has length 29 [2021-06-05 03:49:29,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:29,964 INFO L482 AbstractCegarLoop]: Abstraction has 5117 states and 24293 transitions. [2021-06-05 03:49:29,964 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:29,964 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24293 transitions. [2021-06-05 03:49:29,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:29,972 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:29,972 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:29,972 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1266 [2021-06-05 03:49:29,972 INFO L430 AbstractCegarLoop]: === Iteration 1268 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:29,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:29,973 INFO L82 PathProgramCache]: Analyzing trace with hash 80108295, now seen corresponding path program 1263 times [2021-06-05 03:49:29,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:29,973 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159597639] [2021-06-05 03:49:29,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:29,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:30,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:30,077 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:30,077 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159597639] [2021-06-05 03:49:30,077 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159597639] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:30,077 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:30,077 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:30,077 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782048936] [2021-06-05 03:49:30,078 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:30,078 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:30,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:30,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:30,078 INFO L87 Difference]: Start difference. First operand 5117 states and 24293 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:30,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:30,206 INFO L93 Difference]: Finished difference Result 10304 states and 46158 transitions. [2021-06-05 03:49:30,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:30,206 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:30,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:30,230 INFO L225 Difference]: With dead ends: 10304 [2021-06-05 03:49:30,230 INFO L226 Difference]: Without dead ends: 9889 [2021-06-05 03:49:30,231 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 130.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:30,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9889 states. [2021-06-05 03:49:30,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9889 to 5165. [2021-06-05 03:49:30,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5165 states, 5164 states have (on average 4.738381099922541) internal successors, (24469), 5164 states have internal predecessors, (24469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:30,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5165 states to 5165 states and 24469 transitions. [2021-06-05 03:49:30,447 INFO L78 Accepts]: Start accepts. Automaton has 5165 states and 24469 transitions. Word has length 29 [2021-06-05 03:49:30,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:30,447 INFO L482 AbstractCegarLoop]: Abstraction has 5165 states and 24469 transitions. [2021-06-05 03:49:30,447 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:30,447 INFO L276 IsEmpty]: Start isEmpty. Operand 5165 states and 24469 transitions. [2021-06-05 03:49:30,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:30,456 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:30,456 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:30,456 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1267 [2021-06-05 03:49:30,456 INFO L430 AbstractCegarLoop]: === Iteration 1269 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:30,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:30,456 INFO L82 PathProgramCache]: Analyzing trace with hash -2033240471, now seen corresponding path program 1264 times [2021-06-05 03:49:30,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:30,456 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373776779] [2021-06-05 03:49:30,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:30,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:30,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:30,559 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:30,559 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373776779] [2021-06-05 03:49:30,559 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373776779] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:30,559 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:30,560 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:30,560 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449337685] [2021-06-05 03:49:30,560 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:30,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:30,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:30,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:30,560 INFO L87 Difference]: Start difference. First operand 5165 states and 24469 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:30,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:30,674 INFO L93 Difference]: Finished difference Result 10032 states and 45149 transitions. [2021-06-05 03:49:30,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:30,674 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:30,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:30,698 INFO L225 Difference]: With dead ends: 10032 [2021-06-05 03:49:30,698 INFO L226 Difference]: Without dead ends: 9521 [2021-06-05 03:49:30,698 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 129.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:30,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9521 states. [2021-06-05 03:49:30,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9521 to 5117. [2021-06-05 03:49:30,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.74374511336982) internal successors, (24269), 5116 states have internal predecessors, (24269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:30,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24269 transitions. [2021-06-05 03:49:30,911 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24269 transitions. Word has length 29 [2021-06-05 03:49:30,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:30,911 INFO L482 AbstractCegarLoop]: Abstraction has 5117 states and 24269 transitions. [2021-06-05 03:49:30,911 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:30,911 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24269 transitions. [2021-06-05 03:49:30,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:30,919 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:30,919 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:30,919 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1268 [2021-06-05 03:49:30,919 INFO L430 AbstractCegarLoop]: === Iteration 1270 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:30,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:30,919 INFO L82 PathProgramCache]: Analyzing trace with hash -1807789527, now seen corresponding path program 1265 times [2021-06-05 03:49:30,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:30,920 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075789453] [2021-06-05 03:49:30,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:30,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:31,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:31,023 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:31,023 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075789453] [2021-06-05 03:49:31,023 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075789453] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:31,023 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:31,024 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:31,024 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071401537] [2021-06-05 03:49:31,024 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:31,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:31,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:31,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:31,024 INFO L87 Difference]: Start difference. First operand 5117 states and 24269 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:31,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:31,141 INFO L93 Difference]: Finished difference Result 10388 states and 46522 transitions. [2021-06-05 03:49:31,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:31,141 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:31,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:31,167 INFO L225 Difference]: With dead ends: 10388 [2021-06-05 03:49:31,167 INFO L226 Difference]: Without dead ends: 9913 [2021-06-05 03:49:31,167 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 130.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:31,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9913 states. [2021-06-05 03:49:31,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9913 to 5189. [2021-06-05 03:49:31,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5189 states, 5188 states have (on average 4.7311102544333075) internal successors, (24545), 5188 states have internal predecessors, (24545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:31,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5189 states to 5189 states and 24545 transitions. [2021-06-05 03:49:31,385 INFO L78 Accepts]: Start accepts. Automaton has 5189 states and 24545 transitions. Word has length 29 [2021-06-05 03:49:31,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:31,385 INFO L482 AbstractCegarLoop]: Abstraction has 5189 states and 24545 transitions. [2021-06-05 03:49:31,385 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:31,385 INFO L276 IsEmpty]: Start isEmpty. Operand 5189 states and 24545 transitions. [2021-06-05 03:49:31,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:31,393 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:31,393 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:31,394 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1269 [2021-06-05 03:49:31,394 INFO L430 AbstractCegarLoop]: === Iteration 1271 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:31,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:31,394 INFO L82 PathProgramCache]: Analyzing trace with hash 1095033223, now seen corresponding path program 1266 times [2021-06-05 03:49:31,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:31,394 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343302522] [2021-06-05 03:49:31,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:31,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:31,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:31,497 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:31,497 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343302522] [2021-06-05 03:49:31,497 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343302522] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:31,498 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:31,498 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:31,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725133444] [2021-06-05 03:49:31,498 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:31,498 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:31,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:31,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:31,498 INFO L87 Difference]: Start difference. First operand 5189 states and 24545 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:31,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:31,608 INFO L93 Difference]: Finished difference Result 10056 states and 45225 transitions. [2021-06-05 03:49:31,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:31,608 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:31,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:31,632 INFO L225 Difference]: With dead ends: 10056 [2021-06-05 03:49:31,632 INFO L226 Difference]: Without dead ends: 9497 [2021-06-05 03:49:31,632 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:31,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9497 states. [2021-06-05 03:49:31,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9497 to 5093. [2021-06-05 03:49:31,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5093 states, 5092 states have (on average 4.748821681068343) internal successors, (24181), 5092 states have internal predecessors, (24181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:31,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5093 states to 5093 states and 24181 transitions. [2021-06-05 03:49:31,846 INFO L78 Accepts]: Start accepts. Automaton has 5093 states and 24181 transitions. Word has length 29 [2021-06-05 03:49:31,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:31,847 INFO L482 AbstractCegarLoop]: Abstraction has 5093 states and 24181 transitions. [2021-06-05 03:49:31,847 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:31,847 INFO L276 IsEmpty]: Start isEmpty. Operand 5093 states and 24181 transitions. [2021-06-05 03:49:31,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:31,855 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:31,855 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:31,855 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1270 [2021-06-05 03:49:31,855 INFO L430 AbstractCegarLoop]: === Iteration 1272 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:31,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:31,855 INFO L82 PathProgramCache]: Analyzing trace with hash 1601698251, now seen corresponding path program 1267 times [2021-06-05 03:49:31,856 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:31,856 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312668615] [2021-06-05 03:49:31,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:31,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:31,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:31,959 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:31,959 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312668615] [2021-06-05 03:49:31,959 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312668615] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:31,959 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:31,959 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:31,959 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327573443] [2021-06-05 03:49:31,960 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:31,960 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:31,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:31,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:31,960 INFO L87 Difference]: Start difference. First operand 5093 states and 24181 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:32,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:32,069 INFO L93 Difference]: Finished difference Result 10664 states and 47756 transitions. [2021-06-05 03:49:32,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:32,070 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:32,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:32,095 INFO L225 Difference]: With dead ends: 10664 [2021-06-05 03:49:32,095 INFO L226 Difference]: Without dead ends: 10187 [2021-06-05 03:49:32,095 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 130.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:32,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10187 states. [2021-06-05 03:49:32,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10187 to 5207. [2021-06-05 03:49:32,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5207 states, 5206 states have (on average 4.737994621590473) internal successors, (24666), 5206 states have internal predecessors, (24666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:32,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5207 states to 5207 states and 24666 transitions. [2021-06-05 03:49:32,317 INFO L78 Accepts]: Start accepts. Automaton has 5207 states and 24666 transitions. Word has length 29 [2021-06-05 03:49:32,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:32,317 INFO L482 AbstractCegarLoop]: Abstraction has 5207 states and 24666 transitions. [2021-06-05 03:49:32,317 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:32,317 INFO L276 IsEmpty]: Start isEmpty. Operand 5207 states and 24666 transitions. [2021-06-05 03:49:32,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:32,326 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:32,327 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:32,327 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1271 [2021-06-05 03:49:32,327 INFO L430 AbstractCegarLoop]: === Iteration 1273 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:32,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:32,327 INFO L82 PathProgramCache]: Analyzing trace with hash 209553705, now seen corresponding path program 1268 times [2021-06-05 03:49:32,327 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:32,327 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345494234] [2021-06-05 03:49:32,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:32,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:32,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:32,432 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:32,432 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345494234] [2021-06-05 03:49:32,432 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345494234] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:32,432 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:32,432 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:32,432 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594012959] [2021-06-05 03:49:32,432 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:32,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:32,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:32,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:32,432 INFO L87 Difference]: Start difference. First operand 5207 states and 24666 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:32,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:32,553 INFO L93 Difference]: Finished difference Result 10662 states and 47673 transitions. [2021-06-05 03:49:32,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:32,553 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:32,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:32,578 INFO L225 Difference]: With dead ends: 10662 [2021-06-05 03:49:32,578 INFO L226 Difference]: Without dead ends: 10109 [2021-06-05 03:49:32,578 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 131.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:32,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10109 states. [2021-06-05 03:49:32,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10109 to 5129. [2021-06-05 03:49:32,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5129 states, 5128 states have (on average 4.745904836193448) internal successors, (24337), 5128 states have internal predecessors, (24337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:32,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5129 states to 5129 states and 24337 transitions. [2021-06-05 03:49:32,803 INFO L78 Accepts]: Start accepts. Automaton has 5129 states and 24337 transitions. Word has length 29 [2021-06-05 03:49:32,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:32,803 INFO L482 AbstractCegarLoop]: Abstraction has 5129 states and 24337 transitions. [2021-06-05 03:49:32,803 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:32,803 INFO L276 IsEmpty]: Start isEmpty. Operand 5129 states and 24337 transitions. [2021-06-05 03:49:32,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:32,812 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:32,812 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:32,812 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1272 [2021-06-05 03:49:32,812 INFO L430 AbstractCegarLoop]: === Iteration 1274 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:32,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:32,812 INFO L82 PathProgramCache]: Analyzing trace with hash -514381399, now seen corresponding path program 1269 times [2021-06-05 03:49:32,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:32,812 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673304966] [2021-06-05 03:49:32,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:32,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:32,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:32,927 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:32,927 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673304966] [2021-06-05 03:49:32,927 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673304966] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:32,927 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:32,927 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:32,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743437937] [2021-06-05 03:49:32,927 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:32,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:32,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:32,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:32,928 INFO L87 Difference]: Start difference. First operand 5129 states and 24337 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:33,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:33,041 INFO L93 Difference]: Finished difference Result 10488 states and 46988 transitions. [2021-06-05 03:49:33,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:33,041 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:33,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:33,066 INFO L225 Difference]: With dead ends: 10488 [2021-06-05 03:49:33,066 INFO L226 Difference]: Without dead ends: 10011 [2021-06-05 03:49:33,066 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 141.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:33,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10011 states. [2021-06-05 03:49:33,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10011 to 5201. [2021-06-05 03:49:33,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5201 states, 5200 states have (on average 4.73326923076923) internal successors, (24613), 5200 states have internal predecessors, (24613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:33,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5201 states to 5201 states and 24613 transitions. [2021-06-05 03:49:33,285 INFO L78 Accepts]: Start accepts. Automaton has 5201 states and 24613 transitions. Word has length 29 [2021-06-05 03:49:33,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:33,285 INFO L482 AbstractCegarLoop]: Abstraction has 5201 states and 24613 transitions. [2021-06-05 03:49:33,285 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:33,285 INFO L276 IsEmpty]: Start isEmpty. Operand 5201 states and 24613 transitions. [2021-06-05 03:49:33,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:33,293 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:33,293 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:33,293 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1273 [2021-06-05 03:49:33,294 INFO L430 AbstractCegarLoop]: === Iteration 1275 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:33,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:33,294 INFO L82 PathProgramCache]: Analyzing trace with hash 692599337, now seen corresponding path program 1270 times [2021-06-05 03:49:33,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:33,294 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631873154] [2021-06-05 03:49:33,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:33,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:33,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:33,433 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:33,433 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631873154] [2021-06-05 03:49:33,433 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631873154] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:33,433 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:33,433 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:33,433 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187144314] [2021-06-05 03:49:33,433 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:33,433 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:33,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:33,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:33,433 INFO L87 Difference]: Start difference. First operand 5201 states and 24613 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:33,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:33,549 INFO L93 Difference]: Finished difference Result 10154 states and 45686 transitions. [2021-06-05 03:49:33,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:33,550 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:33,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:33,574 INFO L225 Difference]: With dead ends: 10154 [2021-06-05 03:49:33,574 INFO L226 Difference]: Without dead ends: 9619 [2021-06-05 03:49:33,574 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 165.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:33,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9619 states. [2021-06-05 03:49:33,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9619 to 5129. [2021-06-05 03:49:33,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5129 states, 5128 states have (on average 4.738884555382215) internal successors, (24301), 5128 states have internal predecessors, (24301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:33,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5129 states to 5129 states and 24301 transitions. [2021-06-05 03:49:33,791 INFO L78 Accepts]: Start accepts. Automaton has 5129 states and 24301 transitions. Word has length 29 [2021-06-05 03:49:33,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:33,791 INFO L482 AbstractCegarLoop]: Abstraction has 5129 states and 24301 transitions. [2021-06-05 03:49:33,791 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:33,791 INFO L276 IsEmpty]: Start isEmpty. Operand 5129 states and 24301 transitions. [2021-06-05 03:49:33,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:33,800 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:33,800 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:33,800 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1274 [2021-06-05 03:49:33,800 INFO L430 AbstractCegarLoop]: === Iteration 1276 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:33,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:33,800 INFO L82 PathProgramCache]: Analyzing trace with hash -150124025, now seen corresponding path program 1271 times [2021-06-05 03:49:33,800 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:33,800 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545204964] [2021-06-05 03:49:33,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:33,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:33,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:33,906 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:33,906 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545204964] [2021-06-05 03:49:33,906 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545204964] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:33,906 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:33,906 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:33,906 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195300504] [2021-06-05 03:49:33,906 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:33,906 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:33,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:33,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:33,906 INFO L87 Difference]: Start difference. First operand 5129 states and 24301 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:34,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:34,053 INFO L93 Difference]: Finished difference Result 10486 states and 46947 transitions. [2021-06-05 03:49:34,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:34,053 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:34,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:34,079 INFO L225 Difference]: With dead ends: 10486 [2021-06-05 03:49:34,079 INFO L226 Difference]: Without dead ends: 10011 [2021-06-05 03:49:34,079 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 131.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:34,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10011 states. [2021-06-05 03:49:34,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10011 to 5201. [2021-06-05 03:49:34,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5201 states, 5200 states have (on average 4.726346153846154) internal successors, (24577), 5200 states have internal predecessors, (24577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:34,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5201 states to 5201 states and 24577 transitions. [2021-06-05 03:49:34,296 INFO L78 Accepts]: Start accepts. Automaton has 5201 states and 24577 transitions. Word has length 29 [2021-06-05 03:49:34,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:34,296 INFO L482 AbstractCegarLoop]: Abstraction has 5201 states and 24577 transitions. [2021-06-05 03:49:34,296 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:34,297 INFO L276 IsEmpty]: Start isEmpty. Operand 5201 states and 24577 transitions. [2021-06-05 03:49:34,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:34,305 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:34,305 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:34,305 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1275 [2021-06-05 03:49:34,305 INFO L430 AbstractCegarLoop]: === Iteration 1277 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:34,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:34,305 INFO L82 PathProgramCache]: Analyzing trace with hash -356931991, now seen corresponding path program 1272 times [2021-06-05 03:49:34,305 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:34,305 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891047103] [2021-06-05 03:49:34,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:34,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:34,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:34,406 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:34,406 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891047103] [2021-06-05 03:49:34,406 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891047103] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:34,406 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:34,406 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:34,406 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114805122] [2021-06-05 03:49:34,406 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:34,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:34,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:34,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:34,406 INFO L87 Difference]: Start difference. First operand 5201 states and 24577 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:34,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:34,525 INFO L93 Difference]: Finished difference Result 10154 states and 45650 transitions. [2021-06-05 03:49:34,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:34,526 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:34,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:34,551 INFO L225 Difference]: With dead ends: 10154 [2021-06-05 03:49:34,551 INFO L226 Difference]: Without dead ends: 9571 [2021-06-05 03:49:34,551 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 124.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:34,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9571 states. [2021-06-05 03:49:34,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9571 to 5081. [2021-06-05 03:49:34,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5081 states, 5080 states have (on average 4.752952755905512) internal successors, (24145), 5080 states have internal predecessors, (24145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:34,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5081 states to 5081 states and 24145 transitions. [2021-06-05 03:49:34,772 INFO L78 Accepts]: Start accepts. Automaton has 5081 states and 24145 transitions. Word has length 29 [2021-06-05 03:49:34,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:34,772 INFO L482 AbstractCegarLoop]: Abstraction has 5081 states and 24145 transitions. [2021-06-05 03:49:34,772 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:34,772 INFO L276 IsEmpty]: Start isEmpty. Operand 5081 states and 24145 transitions. [2021-06-05 03:49:34,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:34,780 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:34,780 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:34,780 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1276 [2021-06-05 03:49:34,780 INFO L430 AbstractCegarLoop]: === Iteration 1278 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:34,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:34,781 INFO L82 PathProgramCache]: Analyzing trace with hash 320663051, now seen corresponding path program 1273 times [2021-06-05 03:49:34,781 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:34,781 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618291640] [2021-06-05 03:49:34,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:34,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:34,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:34,896 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:34,896 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618291640] [2021-06-05 03:49:34,896 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618291640] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:34,896 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:34,896 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:34,896 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612421580] [2021-06-05 03:49:34,896 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:34,897 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:34,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:34,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:34,897 INFO L87 Difference]: Start difference. First operand 5081 states and 24145 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:35,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:35,012 INFO L93 Difference]: Finished difference Result 10132 states and 45294 transitions. [2021-06-05 03:49:35,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:35,012 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:35,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:35,038 INFO L225 Difference]: With dead ends: 10132 [2021-06-05 03:49:35,038 INFO L226 Difference]: Without dead ends: 9717 [2021-06-05 03:49:35,038 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 140.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:35,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9717 states. [2021-06-05 03:49:35,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9717 to 5137. [2021-06-05 03:49:35,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5137 states, 5136 states have (on average 4.747079439252336) internal successors, (24381), 5136 states have internal predecessors, (24381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:35,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5137 states to 5137 states and 24381 transitions. [2021-06-05 03:49:35,264 INFO L78 Accepts]: Start accepts. Automaton has 5137 states and 24381 transitions. Word has length 29 [2021-06-05 03:49:35,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:35,264 INFO L482 AbstractCegarLoop]: Abstraction has 5137 states and 24381 transitions. [2021-06-05 03:49:35,264 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:35,264 INFO L276 IsEmpty]: Start isEmpty. Operand 5137 states and 24381 transitions. [2021-06-05 03:49:35,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:35,273 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:35,273 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:35,273 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1277 [2021-06-05 03:49:35,273 INFO L430 AbstractCegarLoop]: === Iteration 1279 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:35,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:35,273 INFO L82 PathProgramCache]: Analyzing trace with hash 732071047, now seen corresponding path program 1274 times [2021-06-05 03:49:35,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:35,273 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302814955] [2021-06-05 03:49:35,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:35,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:35,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:35,391 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:35,391 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302814955] [2021-06-05 03:49:35,391 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302814955] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:35,391 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:35,391 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:35,391 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516973887] [2021-06-05 03:49:35,391 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:35,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:35,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:35,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:35,392 INFO L87 Difference]: Start difference. First operand 5137 states and 24381 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:35,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:35,498 INFO L93 Difference]: Finished difference Result 10132 states and 45262 transitions. [2021-06-05 03:49:35,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:35,499 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:35,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:35,523 INFO L225 Difference]: With dead ends: 10132 [2021-06-05 03:49:35,523 INFO L226 Difference]: Without dead ends: 9685 [2021-06-05 03:49:35,523 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 125.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:35,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9685 states. [2021-06-05 03:49:35,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9685 to 5105. [2021-06-05 03:49:35,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5105 states, 5104 states have (on average 4.751763322884012) internal successors, (24253), 5104 states have internal predecessors, (24253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:35,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 24253 transitions. [2021-06-05 03:49:35,744 INFO L78 Accepts]: Start accepts. Automaton has 5105 states and 24253 transitions. Word has length 29 [2021-06-05 03:49:35,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:35,744 INFO L482 AbstractCegarLoop]: Abstraction has 5105 states and 24253 transitions. [2021-06-05 03:49:35,744 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:35,744 INFO L276 IsEmpty]: Start isEmpty. Operand 5105 states and 24253 transitions. [2021-06-05 03:49:35,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:35,753 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:35,753 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:35,753 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1278 [2021-06-05 03:49:35,753 INFO L430 AbstractCegarLoop]: === Iteration 1280 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:35,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:35,753 INFO L82 PathProgramCache]: Analyzing trace with hash -1702398487, now seen corresponding path program 1275 times [2021-06-05 03:49:35,753 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:35,753 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309659262] [2021-06-05 03:49:35,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:35,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:35,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:35,883 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:35,883 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309659262] [2021-06-05 03:49:35,883 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309659262] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:35,883 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:35,883 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:35,883 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413671387] [2021-06-05 03:49:35,883 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:35,883 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:35,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:35,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:35,883 INFO L87 Difference]: Start difference. First operand 5105 states and 24253 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:35,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:36,000 INFO L93 Difference]: Finished difference Result 10208 states and 45622 transitions. [2021-06-05 03:49:36,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:36,000 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:36,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:36,026 INFO L225 Difference]: With dead ends: 10208 [2021-06-05 03:49:36,026 INFO L226 Difference]: Without dead ends: 9793 [2021-06-05 03:49:36,026 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 154.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:36,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9793 states. [2021-06-05 03:49:36,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9793 to 5153. [2021-06-05 03:49:36,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 5152 states have (on average 4.7416537267080745) internal successors, (24429), 5152 states have internal predecessors, (24429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:36,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 24429 transitions. [2021-06-05 03:49:36,252 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 24429 transitions. Word has length 29 [2021-06-05 03:49:36,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:36,252 INFO L482 AbstractCegarLoop]: Abstraction has 5153 states and 24429 transitions. [2021-06-05 03:49:36,252 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:36,252 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 24429 transitions. [2021-06-05 03:49:36,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:36,261 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:36,261 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:36,261 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1279 [2021-06-05 03:49:36,261 INFO L430 AbstractCegarLoop]: === Iteration 1281 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:36,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:36,261 INFO L82 PathProgramCache]: Analyzing trace with hash 647219659, now seen corresponding path program 1276 times [2021-06-05 03:49:36,261 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:36,261 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364765947] [2021-06-05 03:49:36,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:36,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:36,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:36,390 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:36,390 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364765947] [2021-06-05 03:49:36,390 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364765947] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:36,390 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:36,390 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:36,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185913157] [2021-06-05 03:49:36,390 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:36,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:36,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:36,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:36,391 INFO L87 Difference]: Start difference. First operand 5153 states and 24429 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:36,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:36,515 INFO L93 Difference]: Finished difference Result 10268 states and 45838 transitions. [2021-06-05 03:49:36,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:36,515 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:36,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:36,541 INFO L225 Difference]: With dead ends: 10268 [2021-06-05 03:49:36,541 INFO L226 Difference]: Without dead ends: 9745 [2021-06-05 03:49:36,541 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 155.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:36,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9745 states. [2021-06-05 03:49:36,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9745 to 5105. [2021-06-05 03:49:36,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5105 states, 5104 states have (on average 4.748628526645768) internal successors, (24237), 5104 states have internal predecessors, (24237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:36,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 24237 transitions. [2021-06-05 03:49:36,767 INFO L78 Accepts]: Start accepts. Automaton has 5105 states and 24237 transitions. Word has length 29 [2021-06-05 03:49:36,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:36,768 INFO L482 AbstractCegarLoop]: Abstraction has 5105 states and 24237 transitions. [2021-06-05 03:49:36,768 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:36,768 INFO L276 IsEmpty]: Start isEmpty. Operand 5105 states and 24237 transitions. [2021-06-05 03:49:36,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:36,777 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:36,777 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:36,777 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1280 [2021-06-05 03:49:36,777 INFO L430 AbstractCegarLoop]: === Iteration 1282 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:36,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:36,777 INFO L82 PathProgramCache]: Analyzing trace with hash -1436613211, now seen corresponding path program 1277 times [2021-06-05 03:49:36,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:36,777 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099399347] [2021-06-05 03:49:36,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:36,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:36,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:36,904 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:36,904 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099399347] [2021-06-05 03:49:36,904 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099399347] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:36,904 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:36,904 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:36,904 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69480382] [2021-06-05 03:49:36,904 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:36,904 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:36,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:36,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:36,905 INFO L87 Difference]: Start difference. First operand 5105 states and 24237 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:37,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:37,015 INFO L93 Difference]: Finished difference Result 10208 states and 45606 transitions. [2021-06-05 03:49:37,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:37,015 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:37,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:37,040 INFO L225 Difference]: With dead ends: 10208 [2021-06-05 03:49:37,041 INFO L226 Difference]: Without dead ends: 9793 [2021-06-05 03:49:37,041 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 134.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:37,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9793 states. [2021-06-05 03:49:37,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9793 to 5153. [2021-06-05 03:49:37,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 5152 states have (on average 4.738548136645963) internal successors, (24413), 5152 states have internal predecessors, (24413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:37,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 24413 transitions. [2021-06-05 03:49:37,269 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 24413 transitions. Word has length 29 [2021-06-05 03:49:37,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:37,270 INFO L482 AbstractCegarLoop]: Abstraction has 5153 states and 24413 transitions. [2021-06-05 03:49:37,270 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:37,270 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 24413 transitions. [2021-06-05 03:49:37,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:37,279 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:37,279 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:37,279 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1281 [2021-06-05 03:49:37,279 INFO L430 AbstractCegarLoop]: === Iteration 1283 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:37,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:37,279 INFO L82 PathProgramCache]: Analyzing trace with hash -355550585, now seen corresponding path program 1278 times [2021-06-05 03:49:37,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:37,279 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463089765] [2021-06-05 03:49:37,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:37,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:37,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:37,420 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:37,420 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463089765] [2021-06-05 03:49:37,420 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463089765] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:37,420 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:37,421 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:37,421 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053574236] [2021-06-05 03:49:37,421 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:37,421 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:37,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:37,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:37,421 INFO L87 Difference]: Start difference. First operand 5153 states and 24413 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:37,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:37,549 INFO L93 Difference]: Finished difference Result 10268 states and 45822 transitions. [2021-06-05 03:49:37,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:37,550 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:37,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:37,575 INFO L225 Difference]: With dead ends: 10268 [2021-06-05 03:49:37,575 INFO L226 Difference]: Without dead ends: 9729 [2021-06-05 03:49:37,575 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 161.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:37,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9729 states. [2021-06-05 03:49:37,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9729 to 5089. [2021-06-05 03:49:37,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5089 states, 5088 states have (on average 4.752555031446541) internal successors, (24181), 5088 states have internal predecessors, (24181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:37,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5089 states to 5089 states and 24181 transitions. [2021-06-05 03:49:37,799 INFO L78 Accepts]: Start accepts. Automaton has 5089 states and 24181 transitions. Word has length 29 [2021-06-05 03:49:37,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:37,799 INFO L482 AbstractCegarLoop]: Abstraction has 5089 states and 24181 transitions. [2021-06-05 03:49:37,800 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:37,800 INFO L276 IsEmpty]: Start isEmpty. Operand 5089 states and 24181 transitions. [2021-06-05 03:49:37,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:37,808 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:37,808 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:37,808 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1282 [2021-06-05 03:49:37,808 INFO L430 AbstractCegarLoop]: === Iteration 1284 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:37,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:37,809 INFO L82 PathProgramCache]: Analyzing trace with hash 805633769, now seen corresponding path program 1279 times [2021-06-05 03:49:37,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:37,809 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247821684] [2021-06-05 03:49:37,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:37,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:37,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:37,914 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:37,914 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247821684] [2021-06-05 03:49:37,914 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247821684] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:37,914 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:37,914 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:37,914 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248639925] [2021-06-05 03:49:37,915 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:37,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:37,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:37,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:37,915 INFO L87 Difference]: Start difference. First operand 5089 states and 24181 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:38,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:38,025 INFO L93 Difference]: Finished difference Result 10088 states and 45102 transitions. [2021-06-05 03:49:38,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:38,025 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:38,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:38,050 INFO L225 Difference]: With dead ends: 10088 [2021-06-05 03:49:38,050 INFO L226 Difference]: Without dead ends: 9673 [2021-06-05 03:49:38,050 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 129.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:38,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9673 states. [2021-06-05 03:49:38,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9673 to 5137. [2021-06-05 03:49:38,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5137 states, 5136 states have (on average 4.745521806853582) internal successors, (24373), 5136 states have internal predecessors, (24373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:38,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5137 states to 5137 states and 24373 transitions. [2021-06-05 03:49:38,273 INFO L78 Accepts]: Start accepts. Automaton has 5137 states and 24373 transitions. Word has length 29 [2021-06-05 03:49:38,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:38,273 INFO L482 AbstractCegarLoop]: Abstraction has 5137 states and 24373 transitions. [2021-06-05 03:49:38,274 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:38,274 INFO L276 IsEmpty]: Start isEmpty. Operand 5137 states and 24373 transitions. [2021-06-05 03:49:38,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:38,282 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:38,282 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:38,282 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1283 [2021-06-05 03:49:38,283 INFO L430 AbstractCegarLoop]: === Iteration 1285 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:38,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:38,283 INFO L82 PathProgramCache]: Analyzing trace with hash 1217041765, now seen corresponding path program 1280 times [2021-06-05 03:49:38,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:38,283 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753581819] [2021-06-05 03:49:38,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:38,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:38,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:38,390 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:38,391 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753581819] [2021-06-05 03:49:38,391 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753581819] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:38,391 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:38,391 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:38,391 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003927502] [2021-06-05 03:49:38,391 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:38,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:38,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:38,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:38,391 INFO L87 Difference]: Start difference. First operand 5137 states and 24373 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:38,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:38,481 INFO L93 Difference]: Finished difference Result 10088 states and 45070 transitions. [2021-06-05 03:49:38,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:38,482 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:38,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:38,506 INFO L225 Difference]: With dead ends: 10088 [2021-06-05 03:49:38,506 INFO L226 Difference]: Without dead ends: 9641 [2021-06-05 03:49:38,506 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 115.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:38,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9641 states. [2021-06-05 03:49:38,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9641 to 5105. [2021-06-05 03:49:38,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5105 states, 5104 states have (on average 4.75019592476489) internal successors, (24245), 5104 states have internal predecessors, (24245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:38,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 24245 transitions. [2021-06-05 03:49:38,726 INFO L78 Accepts]: Start accepts. Automaton has 5105 states and 24245 transitions. Word has length 29 [2021-06-05 03:49:38,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:38,726 INFO L482 AbstractCegarLoop]: Abstraction has 5105 states and 24245 transitions. [2021-06-05 03:49:38,726 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:38,726 INFO L276 IsEmpty]: Start isEmpty. Operand 5105 states and 24245 transitions. [2021-06-05 03:49:38,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:38,735 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:38,735 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:38,735 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1284 [2021-06-05 03:49:38,735 INFO L430 AbstractCegarLoop]: === Iteration 1286 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:38,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:38,735 INFO L82 PathProgramCache]: Analyzing trace with hash 9545449, now seen corresponding path program 1281 times [2021-06-05 03:49:38,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:38,735 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918121377] [2021-06-05 03:49:38,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:38,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:38,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:38,841 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:38,841 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918121377] [2021-06-05 03:49:38,841 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918121377] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:38,841 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:38,841 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:38,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213758594] [2021-06-05 03:49:38,841 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:38,841 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:38,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:38,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:38,842 INFO L87 Difference]: Start difference. First operand 5105 states and 24245 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:38,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:38,950 INFO L93 Difference]: Finished difference Result 10056 states and 44990 transitions. [2021-06-05 03:49:38,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:38,950 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:38,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:38,976 INFO L225 Difference]: With dead ends: 10056 [2021-06-05 03:49:38,976 INFO L226 Difference]: Without dead ends: 9641 [2021-06-05 03:49:38,977 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 131.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:39,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9641 states. [2021-06-05 03:49:39,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9641 to 5153. [2021-06-05 03:49:39,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 5152 states have (on average 4.740100931677019) internal successors, (24421), 5152 states have internal predecessors, (24421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:39,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 24421 transitions. [2021-06-05 03:49:39,204 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 24421 transitions. Word has length 29 [2021-06-05 03:49:39,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:39,205 INFO L482 AbstractCegarLoop]: Abstraction has 5153 states and 24421 transitions. [2021-06-05 03:49:39,205 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:39,205 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 24421 transitions. [2021-06-05 03:49:39,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:39,213 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:39,213 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:39,213 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1285 [2021-06-05 03:49:39,214 INFO L430 AbstractCegarLoop]: === Iteration 1287 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:39,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:39,214 INFO L82 PathProgramCache]: Analyzing trace with hash 1498106315, now seen corresponding path program 1282 times [2021-06-05 03:49:39,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:39,214 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247770064] [2021-06-05 03:49:39,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:39,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:39,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:39,320 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:39,320 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247770064] [2021-06-05 03:49:39,320 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247770064] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:39,320 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:39,320 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:39,320 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21044455] [2021-06-05 03:49:39,320 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:39,320 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:39,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:39,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:39,320 INFO L87 Difference]: Start difference. First operand 5153 states and 24421 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:39,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:39,436 INFO L93 Difference]: Finished difference Result 9784 states and 43981 transitions. [2021-06-05 03:49:39,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:39,436 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:39,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:39,459 INFO L225 Difference]: With dead ends: 9784 [2021-06-05 03:49:39,460 INFO L226 Difference]: Without dead ends: 9273 [2021-06-05 03:49:39,460 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 130.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:39,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9273 states. [2021-06-05 03:49:39,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9273 to 5105. [2021-06-05 03:49:39,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5105 states, 5104 states have (on average 4.747061128526646) internal successors, (24229), 5104 states have internal predecessors, (24229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:39,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 24229 transitions. [2021-06-05 03:49:39,677 INFO L78 Accepts]: Start accepts. Automaton has 5105 states and 24229 transitions. Word has length 29 [2021-06-05 03:49:39,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:39,677 INFO L482 AbstractCegarLoop]: Abstraction has 5105 states and 24229 transitions. [2021-06-05 03:49:39,677 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:39,677 INFO L276 IsEmpty]: Start isEmpty. Operand 5105 states and 24229 transitions. [2021-06-05 03:49:39,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:39,686 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:39,686 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:39,686 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1286 [2021-06-05 03:49:39,686 INFO L430 AbstractCegarLoop]: === Iteration 1288 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:39,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:39,686 INFO L82 PathProgramCache]: Analyzing trace with hash 645617317, now seen corresponding path program 1283 times [2021-06-05 03:49:39,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:39,686 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602301979] [2021-06-05 03:49:39,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:39,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:39,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:39,794 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:39,794 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602301979] [2021-06-05 03:49:39,794 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602301979] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:39,794 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:39,794 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:39,794 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668038775] [2021-06-05 03:49:39,795 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:39,795 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:39,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:39,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:39,795 INFO L87 Difference]: Start difference. First operand 5105 states and 24229 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:39,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:39,887 INFO L93 Difference]: Finished difference Result 10056 states and 44974 transitions. [2021-06-05 03:49:39,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:39,888 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:39,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:39,912 INFO L225 Difference]: With dead ends: 10056 [2021-06-05 03:49:39,912 INFO L226 Difference]: Without dead ends: 9641 [2021-06-05 03:49:39,912 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 116.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:40,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9641 states. [2021-06-05 03:49:40,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9641 to 5153. [2021-06-05 03:49:40,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 5152 states have (on average 4.736995341614906) internal successors, (24405), 5152 states have internal predecessors, (24405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:40,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 24405 transitions. [2021-06-05 03:49:40,135 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 24405 transitions. Word has length 29 [2021-06-05 03:49:40,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:40,135 INFO L482 AbstractCegarLoop]: Abstraction has 5153 states and 24405 transitions. [2021-06-05 03:49:40,135 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:40,135 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 24405 transitions. [2021-06-05 03:49:40,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:40,144 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:40,144 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:40,144 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1287 [2021-06-05 03:49:40,144 INFO L430 AbstractCegarLoop]: === Iteration 1289 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:40,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:40,144 INFO L82 PathProgramCache]: Analyzing trace with hash -849061241, now seen corresponding path program 1284 times [2021-06-05 03:49:40,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:40,144 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110407636] [2021-06-05 03:49:40,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:40,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:40,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:40,257 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:40,257 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110407636] [2021-06-05 03:49:40,257 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110407636] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:40,257 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:40,257 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:40,258 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085001655] [2021-06-05 03:49:40,258 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:40,258 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:40,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:40,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:40,258 INFO L87 Difference]: Start difference. First operand 5153 states and 24405 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:40,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:40,366 INFO L93 Difference]: Finished difference Result 9784 states and 43965 transitions. [2021-06-05 03:49:40,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:40,366 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:40,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:40,390 INFO L225 Difference]: With dead ends: 9784 [2021-06-05 03:49:40,390 INFO L226 Difference]: Without dead ends: 9257 [2021-06-05 03:49:40,390 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 137.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:40,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9257 states. [2021-06-05 03:49:40,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9257 to 5089. [2021-06-05 03:49:40,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5089 states, 5088 states have (on average 4.7509827044025155) internal successors, (24173), 5088 states have internal predecessors, (24173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:40,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5089 states to 5089 states and 24173 transitions. [2021-06-05 03:49:40,606 INFO L78 Accepts]: Start accepts. Automaton has 5089 states and 24173 transitions. Word has length 29 [2021-06-05 03:49:40,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:40,606 INFO L482 AbstractCegarLoop]: Abstraction has 5089 states and 24173 transitions. [2021-06-05 03:49:40,606 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:40,606 INFO L276 IsEmpty]: Start isEmpty. Operand 5089 states and 24173 transitions. [2021-06-05 03:49:40,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:40,615 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:40,615 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:40,615 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1288 [2021-06-05 03:49:40,615 INFO L430 AbstractCegarLoop]: === Iteration 1290 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:40,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:40,615 INFO L82 PathProgramCache]: Analyzing trace with hash 2104463175, now seen corresponding path program 1285 times [2021-06-05 03:49:40,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:40,615 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974735567] [2021-06-05 03:49:40,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:40,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:40,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:40,735 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:40,735 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974735567] [2021-06-05 03:49:40,735 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974735567] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:40,735 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:40,736 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:40,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269580810] [2021-06-05 03:49:40,736 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:40,736 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:40,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:40,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:40,736 INFO L87 Difference]: Start difference. First operand 5089 states and 24173 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:40,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:40,852 INFO L93 Difference]: Finished difference Result 10256 states and 45870 transitions. [2021-06-05 03:49:40,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:40,852 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:40,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:40,877 INFO L225 Difference]: With dead ends: 10256 [2021-06-05 03:49:40,877 INFO L226 Difference]: Without dead ends: 9841 [2021-06-05 03:49:40,877 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 145.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:40,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9841 states. [2021-06-05 03:49:41,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9841 to 5161. [2021-06-05 03:49:41,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.7428294573643415) internal successors, (24473), 5160 states have internal predecessors, (24473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:41,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24473 transitions. [2021-06-05 03:49:41,102 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24473 transitions. Word has length 29 [2021-06-05 03:49:41,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:41,102 INFO L482 AbstractCegarLoop]: Abstraction has 5161 states and 24473 transitions. [2021-06-05 03:49:41,102 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:41,102 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24473 transitions. [2021-06-05 03:49:41,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:41,111 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:41,111 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:41,111 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1289 [2021-06-05 03:49:41,111 INFO L430 AbstractCegarLoop]: === Iteration 1291 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:41,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:41,111 INFO L82 PathProgramCache]: Analyzing trace with hash 159114025, now seen corresponding path program 1286 times [2021-06-05 03:49:41,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:41,111 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772951618] [2021-06-05 03:49:41,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:41,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:41,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:41,231 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:41,231 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772951618] [2021-06-05 03:49:41,231 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772951618] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:41,231 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:41,231 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:41,231 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975432668] [2021-06-05 03:49:41,231 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:41,231 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:41,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:41,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:41,231 INFO L87 Difference]: Start difference. First operand 5161 states and 24473 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:41,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:41,344 INFO L93 Difference]: Finished difference Result 10316 states and 46086 transitions. [2021-06-05 03:49:41,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:41,345 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:41,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:41,369 INFO L225 Difference]: With dead ends: 10316 [2021-06-05 03:49:41,370 INFO L226 Difference]: Without dead ends: 9793 [2021-06-05 03:49:41,370 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 146.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:41,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9793 states. [2021-06-05 03:49:41,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9793 to 5113. [2021-06-05 03:49:41,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5113 states, 5112 states have (on average 4.748239436619718) internal successors, (24273), 5112 states have internal predecessors, (24273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:41,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5113 states to 5113 states and 24273 transitions. [2021-06-05 03:49:41,592 INFO L78 Accepts]: Start accepts. Automaton has 5113 states and 24273 transitions. Word has length 29 [2021-06-05 03:49:41,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:41,592 INFO L482 AbstractCegarLoop]: Abstraction has 5113 states and 24273 transitions. [2021-06-05 03:49:41,592 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:41,592 INFO L276 IsEmpty]: Start isEmpty. Operand 5113 states and 24273 transitions. [2021-06-05 03:49:41,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:41,601 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:41,601 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:41,601 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1290 [2021-06-05 03:49:41,601 INFO L430 AbstractCegarLoop]: === Iteration 1292 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:41,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:41,601 INFO L82 PathProgramCache]: Analyzing trace with hash -789386583, now seen corresponding path program 1287 times [2021-06-05 03:49:41,601 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:41,601 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357727514] [2021-06-05 03:49:41,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:41,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:41,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:41,710 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:41,710 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357727514] [2021-06-05 03:49:41,710 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357727514] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:41,710 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:41,710 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:41,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617404221] [2021-06-05 03:49:41,711 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:41,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:41,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:41,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:41,711 INFO L87 Difference]: Start difference. First operand 5113 states and 24273 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:41,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:41,820 INFO L93 Difference]: Finished difference Result 10148 states and 45406 transitions. [2021-06-05 03:49:41,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:41,821 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:41,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:41,846 INFO L225 Difference]: With dead ends: 10148 [2021-06-05 03:49:41,846 INFO L226 Difference]: Without dead ends: 9733 [2021-06-05 03:49:41,846 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 134.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:41,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9733 states. [2021-06-05 03:49:42,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9733 to 5161. [2021-06-05 03:49:42,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.738178294573643) internal successors, (24449), 5160 states have internal predecessors, (24449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:42,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24449 transitions. [2021-06-05 03:49:42,067 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24449 transitions. Word has length 29 [2021-06-05 03:49:42,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:42,067 INFO L482 AbstractCegarLoop]: Abstraction has 5161 states and 24449 transitions. [2021-06-05 03:49:42,067 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:42,067 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24449 transitions. [2021-06-05 03:49:42,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:42,076 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:42,076 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:42,076 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1291 [2021-06-05 03:49:42,076 INFO L430 AbstractCegarLoop]: === Iteration 1293 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:42,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:42,076 INFO L82 PathProgramCache]: Analyzing trace with hash -1338813911, now seen corresponding path program 1288 times [2021-06-05 03:49:42,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:42,076 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5336079] [2021-06-05 03:49:42,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:42,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:42,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:42,180 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:42,181 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5336079] [2021-06-05 03:49:42,181 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5336079] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:42,181 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:42,181 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:42,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406304474] [2021-06-05 03:49:42,181 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:42,181 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:42,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:42,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:42,181 INFO L87 Difference]: Start difference. First operand 5161 states and 24449 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:42,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:42,297 INFO L93 Difference]: Finished difference Result 9876 states and 44397 transitions. [2021-06-05 03:49:42,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:42,298 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:42,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:42,321 INFO L225 Difference]: With dead ends: 9876 [2021-06-05 03:49:42,321 INFO L226 Difference]: Without dead ends: 9365 [2021-06-05 03:49:42,322 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 130.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:42,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9365 states. [2021-06-05 03:49:42,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9365 to 5113. [2021-06-05 03:49:42,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5113 states, 5112 states have (on average 4.743544600938967) internal successors, (24249), 5112 states have internal predecessors, (24249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:42,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5113 states to 5113 states and 24249 transitions. [2021-06-05 03:49:42,542 INFO L78 Accepts]: Start accepts. Automaton has 5113 states and 24249 transitions. Word has length 29 [2021-06-05 03:49:42,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:42,542 INFO L482 AbstractCegarLoop]: Abstraction has 5113 states and 24249 transitions. [2021-06-05 03:49:42,542 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:42,542 INFO L276 IsEmpty]: Start isEmpty. Operand 5113 states and 24249 transitions. [2021-06-05 03:49:42,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:42,551 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:42,551 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:42,551 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1292 [2021-06-05 03:49:42,551 INFO L430 AbstractCegarLoop]: === Iteration 1294 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:42,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:42,552 INFO L82 PathProgramCache]: Analyzing trace with hash 441996683, now seen corresponding path program 1289 times [2021-06-05 03:49:42,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:42,552 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222086333] [2021-06-05 03:49:42,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:42,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:42,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:42,654 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:42,654 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222086333] [2021-06-05 03:49:42,654 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222086333] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:42,654 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:42,654 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:42,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459227125] [2021-06-05 03:49:42,654 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:42,654 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:42,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:42,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:42,655 INFO L87 Difference]: Start difference. First operand 5113 states and 24249 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:42,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:42,768 INFO L93 Difference]: Finished difference Result 10232 states and 45770 transitions. [2021-06-05 03:49:42,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:42,769 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:42,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:42,793 INFO L225 Difference]: With dead ends: 10232 [2021-06-05 03:49:42,793 INFO L226 Difference]: Without dead ends: 9757 [2021-06-05 03:49:42,793 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:42,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9757 states. [2021-06-05 03:49:42,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9757 to 5185. [2021-06-05 03:49:42,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5185 states, 5184 states have (on average 4.730902777777778) internal successors, (24525), 5184 states have internal predecessors, (24525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:43,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5185 states to 5185 states and 24525 transitions. [2021-06-05 03:49:43,009 INFO L78 Accepts]: Start accepts. Automaton has 5185 states and 24525 transitions. Word has length 29 [2021-06-05 03:49:43,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:43,009 INFO L482 AbstractCegarLoop]: Abstraction has 5185 states and 24525 transitions. [2021-06-05 03:49:43,009 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:43,009 INFO L276 IsEmpty]: Start isEmpty. Operand 5185 states and 24525 transitions. [2021-06-05 03:49:43,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:43,017 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:43,017 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:43,018 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1293 [2021-06-05 03:49:43,018 INFO L430 AbstractCegarLoop]: === Iteration 1295 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:43,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:43,018 INFO L82 PathProgramCache]: Analyzing trace with hash -950147863, now seen corresponding path program 1290 times [2021-06-05 03:49:43,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:43,018 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538330905] [2021-06-05 03:49:43,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:43,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:43,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:43,123 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:43,124 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538330905] [2021-06-05 03:49:43,124 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538330905] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:43,124 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:43,124 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:43,124 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246928032] [2021-06-05 03:49:43,124 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:43,124 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:43,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:43,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:43,124 INFO L87 Difference]: Start difference. First operand 5185 states and 24525 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:43,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:43,240 INFO L93 Difference]: Finished difference Result 9900 states and 44473 transitions. [2021-06-05 03:49:43,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:43,240 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:43,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:43,264 INFO L225 Difference]: With dead ends: 9900 [2021-06-05 03:49:43,264 INFO L226 Difference]: Without dead ends: 9341 [2021-06-05 03:49:43,264 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 132.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:43,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9341 states. [2021-06-05 03:49:43,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9341 to 5089. [2021-06-05 03:49:43,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5089 states, 5088 states have (on average 4.74941037735849) internal successors, (24165), 5088 states have internal predecessors, (24165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:43,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5089 states to 5089 states and 24165 transitions. [2021-06-05 03:49:43,480 INFO L78 Accepts]: Start accepts. Automaton has 5089 states and 24165 transitions. Word has length 29 [2021-06-05 03:49:43,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:43,480 INFO L482 AbstractCegarLoop]: Abstraction has 5089 states and 24165 transitions. [2021-06-05 03:49:43,480 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:43,480 INFO L276 IsEmpty]: Start isEmpty. Operand 5089 states and 24165 transitions. [2021-06-05 03:49:43,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:43,489 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:43,489 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:43,489 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1294 [2021-06-05 03:49:43,489 INFO L430 AbstractCegarLoop]: === Iteration 1296 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:43,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:43,489 INFO L82 PathProgramCache]: Analyzing trace with hash -771102653, now seen corresponding path program 1291 times [2021-06-05 03:49:43,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:43,489 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46222519] [2021-06-05 03:49:43,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:43,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:43,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:43,656 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:43,656 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46222519] [2021-06-05 03:49:43,657 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46222519] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:43,657 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:43,657 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:43,657 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405166163] [2021-06-05 03:49:43,657 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:43,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:43,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:43,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:43,657 INFO L87 Difference]: Start difference. First operand 5089 states and 24165 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:43,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:43,757 INFO L93 Difference]: Finished difference Result 10256 states and 45862 transitions. [2021-06-05 03:49:43,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:43,757 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:43,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:43,781 INFO L225 Difference]: With dead ends: 10256 [2021-06-05 03:49:43,782 INFO L226 Difference]: Without dead ends: 9841 [2021-06-05 03:49:43,782 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 124.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:43,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9841 states. [2021-06-05 03:49:43,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9841 to 5161. [2021-06-05 03:49:43,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.741279069767442) internal successors, (24465), 5160 states have internal predecessors, (24465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:44,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24465 transitions. [2021-06-05 03:49:44,003 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24465 transitions. Word has length 29 [2021-06-05 03:49:44,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:44,003 INFO L482 AbstractCegarLoop]: Abstraction has 5161 states and 24465 transitions. [2021-06-05 03:49:44,004 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:44,004 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24465 transitions. [2021-06-05 03:49:44,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:44,012 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:44,012 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:44,012 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1295 [2021-06-05 03:49:44,012 INFO L430 AbstractCegarLoop]: === Iteration 1297 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:44,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:44,013 INFO L82 PathProgramCache]: Analyzing trace with hash 309959973, now seen corresponding path program 1292 times [2021-06-05 03:49:44,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:44,013 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965331831] [2021-06-05 03:49:44,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:44,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:44,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:44,137 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:44,137 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965331831] [2021-06-05 03:49:44,137 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965331831] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:44,137 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:44,137 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:44,137 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516389289] [2021-06-05 03:49:44,137 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:44,137 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:44,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:44,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:44,137 INFO L87 Difference]: Start difference. First operand 5161 states and 24465 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:44,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:44,253 INFO L93 Difference]: Finished difference Result 10316 states and 46078 transitions. [2021-06-05 03:49:44,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:44,253 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:44,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:44,278 INFO L225 Difference]: With dead ends: 10316 [2021-06-05 03:49:44,278 INFO L226 Difference]: Without dead ends: 9793 [2021-06-05 03:49:44,278 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 143.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:44,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9793 states. [2021-06-05 03:49:44,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9793 to 5113. [2021-06-05 03:49:44,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5113 states, 5112 states have (on average 4.746674491392802) internal successors, (24265), 5112 states have internal predecessors, (24265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:44,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5113 states to 5113 states and 24265 transitions. [2021-06-05 03:49:44,495 INFO L78 Accepts]: Start accepts. Automaton has 5113 states and 24265 transitions. Word has length 29 [2021-06-05 03:49:44,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:44,495 INFO L482 AbstractCegarLoop]: Abstraction has 5113 states and 24265 transitions. [2021-06-05 03:49:44,495 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:44,495 INFO L276 IsEmpty]: Start isEmpty. Operand 5113 states and 24265 transitions. [2021-06-05 03:49:44,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:44,503 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:44,503 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:44,504 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1296 [2021-06-05 03:49:44,504 INFO L430 AbstractCegarLoop]: === Iteration 1298 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:44,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:44,504 INFO L82 PathProgramCache]: Analyzing trace with hash -1945062363, now seen corresponding path program 1293 times [2021-06-05 03:49:44,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:44,504 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984804525] [2021-06-05 03:49:44,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:44,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:44,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:44,611 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:44,611 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984804525] [2021-06-05 03:49:44,611 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984804525] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:44,611 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:44,611 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:44,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174370162] [2021-06-05 03:49:44,611 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:44,611 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:44,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:44,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:44,611 INFO L87 Difference]: Start difference. First operand 5113 states and 24265 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:44,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:44,707 INFO L93 Difference]: Finished difference Result 10148 states and 45398 transitions. [2021-06-05 03:49:44,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:44,707 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:44,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:44,731 INFO L225 Difference]: With dead ends: 10148 [2021-06-05 03:49:44,731 INFO L226 Difference]: Without dead ends: 9733 [2021-06-05 03:49:44,731 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 114.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:44,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9733 states. [2021-06-05 03:49:44,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9733 to 5161. [2021-06-05 03:49:44,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.736627906976744) internal successors, (24441), 5160 states have internal predecessors, (24441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:44,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24441 transitions. [2021-06-05 03:49:44,949 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24441 transitions. Word has length 29 [2021-06-05 03:49:44,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:44,949 INFO L482 AbstractCegarLoop]: Abstraction has 5161 states and 24441 transitions. [2021-06-05 03:49:44,949 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:44,949 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24441 transitions. [2021-06-05 03:49:44,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:44,958 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:44,958 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:44,958 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1297 [2021-06-05 03:49:44,958 INFO L430 AbstractCegarLoop]: === Iteration 1299 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:44,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:44,958 INFO L82 PathProgramCache]: Analyzing trace with hash -1895494619, now seen corresponding path program 1294 times [2021-06-05 03:49:44,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:44,958 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983492907] [2021-06-05 03:49:44,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:44,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:45,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:45,062 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:45,062 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983492907] [2021-06-05 03:49:45,062 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983492907] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:45,062 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:45,062 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:45,062 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058618787] [2021-06-05 03:49:45,062 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:45,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:45,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:45,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:45,062 INFO L87 Difference]: Start difference. First operand 5161 states and 24441 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:45,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:45,170 INFO L93 Difference]: Finished difference Result 9876 states and 44389 transitions. [2021-06-05 03:49:45,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:45,171 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:45,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:45,195 INFO L225 Difference]: With dead ends: 9876 [2021-06-05 03:49:45,195 INFO L226 Difference]: Without dead ends: 9365 [2021-06-05 03:49:45,195 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:45,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9365 states. [2021-06-05 03:49:45,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9365 to 5113. [2021-06-05 03:49:45,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5113 states, 5112 states have (on average 4.74197965571205) internal successors, (24241), 5112 states have internal predecessors, (24241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:45,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5113 states to 5113 states and 24241 transitions. [2021-06-05 03:49:45,411 INFO L78 Accepts]: Start accepts. Automaton has 5113 states and 24241 transitions. Word has length 29 [2021-06-05 03:49:45,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:45,411 INFO L482 AbstractCegarLoop]: Abstraction has 5113 states and 24241 transitions. [2021-06-05 03:49:45,411 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:45,411 INFO L276 IsEmpty]: Start isEmpty. Operand 5113 states and 24241 transitions. [2021-06-05 03:49:45,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:45,420 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:45,420 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:45,420 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1298 [2021-06-05 03:49:45,420 INFO L430 AbstractCegarLoop]: === Iteration 1300 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:45,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:45,420 INFO L82 PathProgramCache]: Analyzing trace with hash -1557057401, now seen corresponding path program 1295 times [2021-06-05 03:49:45,421 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:45,421 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252349139] [2021-06-05 03:49:45,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:45,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:45,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:45,524 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:45,525 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252349139] [2021-06-05 03:49:45,525 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252349139] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:45,525 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:45,525 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:45,525 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662728434] [2021-06-05 03:49:45,525 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:45,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:45,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:45,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:45,525 INFO L87 Difference]: Start difference. First operand 5113 states and 24241 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:45,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:45,638 INFO L93 Difference]: Finished difference Result 10232 states and 45762 transitions. [2021-06-05 03:49:45,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:45,639 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:45,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:45,663 INFO L225 Difference]: With dead ends: 10232 [2021-06-05 03:49:45,664 INFO L226 Difference]: Without dead ends: 9757 [2021-06-05 03:49:45,664 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 129.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:45,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9757 states. [2021-06-05 03:49:45,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9757 to 5185. [2021-06-05 03:49:45,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5185 states, 5184 states have (on average 4.729359567901234) internal successors, (24517), 5184 states have internal predecessors, (24517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:45,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5185 states to 5185 states and 24517 transitions. [2021-06-05 03:49:45,883 INFO L78 Accepts]: Start accepts. Automaton has 5185 states and 24517 transitions. Word has length 29 [2021-06-05 03:49:45,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:45,883 INFO L482 AbstractCegarLoop]: Abstraction has 5185 states and 24517 transitions. [2021-06-05 03:49:45,883 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:45,883 INFO L276 IsEmpty]: Start isEmpty. Operand 5185 states and 24517 transitions. [2021-06-05 03:49:45,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:45,892 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:45,892 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:45,892 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1299 [2021-06-05 03:49:45,892 INFO L430 AbstractCegarLoop]: === Iteration 1301 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:45,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:45,892 INFO L82 PathProgramCache]: Analyzing trace with hash 621830245, now seen corresponding path program 1296 times [2021-06-05 03:49:45,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:45,892 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639059024] [2021-06-05 03:49:45,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:45,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:45,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:45,997 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:45,997 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639059024] [2021-06-05 03:49:45,997 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639059024] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:45,997 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:45,998 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:45,998 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965133776] [2021-06-05 03:49:45,998 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:45,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:45,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:45,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:45,998 INFO L87 Difference]: Start difference. First operand 5185 states and 24517 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:46,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:46,119 INFO L93 Difference]: Finished difference Result 9900 states and 44465 transitions. [2021-06-05 03:49:46,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:46,119 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:46,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:46,144 INFO L225 Difference]: With dead ends: 9900 [2021-06-05 03:49:46,144 INFO L226 Difference]: Without dead ends: 9333 [2021-06-05 03:49:46,144 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 129.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:46,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9333 states. [2021-06-05 03:49:46,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9333 to 5081. [2021-06-05 03:49:46,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5081 states, 5080 states have (on average 4.7521653543307085) internal successors, (24141), 5080 states have internal predecessors, (24141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:46,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5081 states to 5081 states and 24141 transitions. [2021-06-05 03:49:46,365 INFO L78 Accepts]: Start accepts. Automaton has 5081 states and 24141 transitions. Word has length 29 [2021-06-05 03:49:46,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:46,365 INFO L482 AbstractCegarLoop]: Abstraction has 5081 states and 24141 transitions. [2021-06-05 03:49:46,365 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:46,365 INFO L276 IsEmpty]: Start isEmpty. Operand 5081 states and 24141 transitions. [2021-06-05 03:49:46,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:46,374 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:46,374 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:46,374 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1300 [2021-06-05 03:49:46,374 INFO L430 AbstractCegarLoop]: === Iteration 1302 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:46,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:46,374 INFO L82 PathProgramCache]: Analyzing trace with hash -472394557, now seen corresponding path program 1297 times [2021-06-05 03:49:46,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:46,374 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35601652] [2021-06-05 03:49:46,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:46,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:46,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:46,497 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:46,497 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35601652] [2021-06-05 03:49:46,497 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35601652] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:46,497 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:46,497 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:46,497 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625569486] [2021-06-05 03:49:46,497 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:46,497 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:46,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:46,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:46,498 INFO L87 Difference]: Start difference. First operand 5081 states and 24141 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:46,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:46,619 INFO L93 Difference]: Finished difference Result 10544 states and 47204 transitions. [2021-06-05 03:49:46,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:46,619 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:46,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:46,644 INFO L225 Difference]: With dead ends: 10544 [2021-06-05 03:49:46,644 INFO L226 Difference]: Without dead ends: 10067 [2021-06-05 03:49:46,644 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 148.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:46,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10067 states. [2021-06-05 03:49:46,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10067 to 5165. [2021-06-05 03:49:46,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5165 states, 5164 states have (on average 4.746127033307514) internal successors, (24509), 5164 states have internal predecessors, (24509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:46,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5165 states to 5165 states and 24509 transitions. [2021-06-05 03:49:46,863 INFO L78 Accepts]: Start accepts. Automaton has 5165 states and 24509 transitions. Word has length 29 [2021-06-05 03:49:46,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:46,863 INFO L482 AbstractCegarLoop]: Abstraction has 5165 states and 24509 transitions. [2021-06-05 03:49:46,863 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:46,863 INFO L276 IsEmpty]: Start isEmpty. Operand 5165 states and 24509 transitions. [2021-06-05 03:49:46,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:46,872 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:46,872 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:46,872 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1301 [2021-06-05 03:49:46,872 INFO L430 AbstractCegarLoop]: === Iteration 1303 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:46,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:46,872 INFO L82 PathProgramCache]: Analyzing trace with hash 608668069, now seen corresponding path program 1298 times [2021-06-05 03:49:46,872 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:46,872 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557797961] [2021-06-05 03:49:46,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:46,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:46,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:46,995 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:46,995 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557797961] [2021-06-05 03:49:46,995 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557797961] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:46,995 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:46,995 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:46,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850801572] [2021-06-05 03:49:46,995 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:46,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:46,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:46,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:46,996 INFO L87 Difference]: Start difference. First operand 5165 states and 24509 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:47,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:47,098 INFO L93 Difference]: Finished difference Result 10482 states and 46887 transitions. [2021-06-05 03:49:47,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:47,098 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:47,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:47,123 INFO L225 Difference]: With dead ends: 10482 [2021-06-05 03:49:47,123 INFO L226 Difference]: Without dead ends: 10019 [2021-06-05 03:49:47,123 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 131.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:47,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10019 states. [2021-06-05 03:49:47,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10019 to 5117. [2021-06-05 03:49:47,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.751563721657545) internal successors, (24309), 5116 states have internal predecessors, (24309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:47,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24309 transitions. [2021-06-05 03:49:47,348 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24309 transitions. Word has length 29 [2021-06-05 03:49:47,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:47,348 INFO L482 AbstractCegarLoop]: Abstraction has 5117 states and 24309 transitions. [2021-06-05 03:49:47,348 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:47,349 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24309 transitions. [2021-06-05 03:49:47,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:47,357 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:47,357 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:47,357 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1302 [2021-06-05 03:49:47,357 INFO L430 AbstractCegarLoop]: === Iteration 1304 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:47,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:47,357 INFO L82 PathProgramCache]: Analyzing trace with hash -953296603, now seen corresponding path program 1299 times [2021-06-05 03:49:47,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:47,357 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680007486] [2021-06-05 03:49:47,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:47,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:47,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:47,468 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:47,468 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680007486] [2021-06-05 03:49:47,468 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680007486] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:47,468 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:47,468 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:47,468 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493274549] [2021-06-05 03:49:47,468 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:47,468 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:47,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:47,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:47,468 INFO L87 Difference]: Start difference. First operand 5117 states and 24309 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:47,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:47,576 INFO L93 Difference]: Finished difference Result 10634 states and 47591 transitions. [2021-06-05 03:49:47,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:47,576 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:47,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:47,602 INFO L225 Difference]: With dead ends: 10634 [2021-06-05 03:49:47,602 INFO L226 Difference]: Without dead ends: 10157 [2021-06-05 03:49:47,602 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 135.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:47,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10157 states. [2021-06-05 03:49:47,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10157 to 5195. [2021-06-05 03:49:47,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5195 states, 5194 states have (on average 4.736619175972276) internal successors, (24602), 5194 states have internal predecessors, (24602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:47,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5195 states to 5195 states and 24602 transitions. [2021-06-05 03:49:47,829 INFO L78 Accepts]: Start accepts. Automaton has 5195 states and 24602 transitions. Word has length 29 [2021-06-05 03:49:47,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:47,829 INFO L482 AbstractCegarLoop]: Abstraction has 5195 states and 24602 transitions. [2021-06-05 03:49:47,829 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:47,829 INFO L276 IsEmpty]: Start isEmpty. Operand 5195 states and 24602 transitions. [2021-06-05 03:49:47,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:47,838 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:47,838 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:47,838 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1303 [2021-06-05 03:49:47,838 INFO L430 AbstractCegarLoop]: === Iteration 1305 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:47,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:47,839 INFO L82 PathProgramCache]: Analyzing trace with hash 1653424421, now seen corresponding path program 1300 times [2021-06-05 03:49:47,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:47,839 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084623647] [2021-06-05 03:49:47,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:47,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:47,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:47,951 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:47,951 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084623647] [2021-06-05 03:49:47,951 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084623647] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:47,951 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:47,951 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:47,951 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495824590] [2021-06-05 03:49:47,951 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:47,951 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:47,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:47,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:47,951 INFO L87 Difference]: Start difference. First operand 5195 states and 24602 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:48,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:48,071 INFO L93 Difference]: Finished difference Result 10632 states and 47508 transitions. [2021-06-05 03:49:48,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:48,072 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:48,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:48,097 INFO L225 Difference]: With dead ends: 10632 [2021-06-05 03:49:48,097 INFO L226 Difference]: Without dead ends: 10079 [2021-06-05 03:49:48,097 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 137.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:48,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10079 states. [2021-06-05 03:49:48,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10079 to 5117. [2021-06-05 03:49:48,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.74687255668491) internal successors, (24285), 5116 states have internal predecessors, (24285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:48,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24285 transitions. [2021-06-05 03:49:48,315 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24285 transitions. Word has length 29 [2021-06-05 03:49:48,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:48,315 INFO L482 AbstractCegarLoop]: Abstraction has 5117 states and 24285 transitions. [2021-06-05 03:49:48,315 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:48,315 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24285 transitions. [2021-06-05 03:49:48,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:48,323 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:48,323 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:48,323 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1304 [2021-06-05 03:49:48,323 INFO L430 AbstractCegarLoop]: === Iteration 1306 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:48,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:48,324 INFO L82 PathProgramCache]: Analyzing trace with hash -565291641, now seen corresponding path program 1301 times [2021-06-05 03:49:48,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:48,324 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37836627] [2021-06-05 03:49:48,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:48,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:48,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:48,447 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:48,447 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37836627] [2021-06-05 03:49:48,447 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37836627] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:48,447 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:48,447 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:48,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907346127] [2021-06-05 03:49:48,448 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:48,448 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:48,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:48,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:48,448 INFO L87 Difference]: Start difference. First operand 5117 states and 24285 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:48,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:48,561 INFO L93 Difference]: Finished difference Result 10480 states and 46882 transitions. [2021-06-05 03:49:48,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:48,561 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:48,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:48,586 INFO L225 Difference]: With dead ends: 10480 [2021-06-05 03:49:48,586 INFO L226 Difference]: Without dead ends: 10065 [2021-06-05 03:49:48,586 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 131.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:48,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10065 states. [2021-06-05 03:49:48,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10065 to 5165. [2021-06-05 03:49:48,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5165 states, 5164 states have (on average 4.736831913245546) internal successors, (24461), 5164 states have internal predecessors, (24461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:48,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5165 states to 5165 states and 24461 transitions. [2021-06-05 03:49:48,805 INFO L78 Accepts]: Start accepts. Automaton has 5165 states and 24461 transitions. Word has length 29 [2021-06-05 03:49:48,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:48,805 INFO L482 AbstractCegarLoop]: Abstraction has 5165 states and 24461 transitions. [2021-06-05 03:49:48,805 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:48,805 INFO L276 IsEmpty]: Start isEmpty. Operand 5165 states and 24461 transitions. [2021-06-05 03:49:48,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:48,814 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:48,814 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:48,814 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1305 [2021-06-05 03:49:48,814 INFO L430 AbstractCegarLoop]: === Iteration 1307 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:48,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:48,814 INFO L82 PathProgramCache]: Analyzing trace with hash -1412088603, now seen corresponding path program 1302 times [2021-06-05 03:49:48,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:48,814 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722842073] [2021-06-05 03:49:48,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:48,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:48,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:48,937 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:48,937 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722842073] [2021-06-05 03:49:48,937 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722842073] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:48,937 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:48,938 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:48,938 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911289385] [2021-06-05 03:49:48,938 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:48,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:48,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:48,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:48,938 INFO L87 Difference]: Start difference. First operand 5165 states and 24461 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:49,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:49,062 INFO L93 Difference]: Finished difference Result 10540 states and 47098 transitions. [2021-06-05 03:49:49,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:49,063 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:49,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:49,087 INFO L225 Difference]: With dead ends: 10540 [2021-06-05 03:49:49,087 INFO L226 Difference]: Without dead ends: 9993 [2021-06-05 03:49:49,088 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 148.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:49,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9993 states. [2021-06-05 03:49:49,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9993 to 5093. [2021-06-05 03:49:49,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5093 states, 5092 states have (on average 4.751963864886096) internal successors, (24197), 5092 states have internal predecessors, (24197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:49,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5093 states to 5093 states and 24197 transitions. [2021-06-05 03:49:49,315 INFO L78 Accepts]: Start accepts. Automaton has 5093 states and 24197 transitions. Word has length 29 [2021-06-05 03:49:49,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:49,315 INFO L482 AbstractCegarLoop]: Abstraction has 5093 states and 24197 transitions. [2021-06-05 03:49:49,315 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:49,315 INFO L276 IsEmpty]: Start isEmpty. Operand 5093 states and 24197 transitions. [2021-06-05 03:49:49,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:49,323 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:49,323 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:49,324 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1306 [2021-06-05 03:49:49,324 INFO L430 AbstractCegarLoop]: === Iteration 1308 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:49,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:49,324 INFO L82 PathProgramCache]: Analyzing trace with hash 928722981, now seen corresponding path program 1303 times [2021-06-05 03:49:49,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:49,324 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332225033] [2021-06-05 03:49:49,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:49,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:49,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:49,446 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:49,446 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332225033] [2021-06-05 03:49:49,446 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332225033] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:49,446 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:49,446 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:49,446 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753722983] [2021-06-05 03:49:49,446 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:49,446 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:49,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:49,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:49,447 INFO L87 Difference]: Start difference. First operand 5093 states and 24197 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:49,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:49,577 INFO L93 Difference]: Finished difference Result 10478 states and 46905 transitions. [2021-06-05 03:49:49,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:49,577 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:49,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:49,603 INFO L225 Difference]: With dead ends: 10478 [2021-06-05 03:49:49,603 INFO L226 Difference]: Without dead ends: 10001 [2021-06-05 03:49:49,603 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 148.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:49,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10001 states. [2021-06-05 03:49:49,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10001 to 5165. [2021-06-05 03:49:49,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5165 states, 5164 states have (on average 4.743803253292022) internal successors, (24497), 5164 states have internal predecessors, (24497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:49,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5165 states to 5165 states and 24497 transitions. [2021-06-05 03:49:49,831 INFO L78 Accepts]: Start accepts. Automaton has 5165 states and 24497 transitions. Word has length 29 [2021-06-05 03:49:49,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:49,832 INFO L482 AbstractCegarLoop]: Abstraction has 5165 states and 24497 transitions. [2021-06-05 03:49:49,832 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:49,832 INFO L276 IsEmpty]: Start isEmpty. Operand 5165 states and 24497 transitions. [2021-06-05 03:49:49,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:49,840 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:49,840 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:49,840 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1307 [2021-06-05 03:49:49,840 INFO L430 AbstractCegarLoop]: === Iteration 1309 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:49,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:49,841 INFO L82 PathProgramCache]: Analyzing trace with hash 2009785607, now seen corresponding path program 1304 times [2021-06-05 03:49:49,841 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:49,841 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481040139] [2021-06-05 03:49:49,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:49,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:49,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:49,965 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:49,965 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481040139] [2021-06-05 03:49:49,965 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481040139] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:49,965 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:49,965 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:49,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143151710] [2021-06-05 03:49:49,965 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:49,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:49,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:49,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:49,966 INFO L87 Difference]: Start difference. First operand 5165 states and 24497 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:50,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:50,061 INFO L93 Difference]: Finished difference Result 10416 states and 46588 transitions. [2021-06-05 03:49:50,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:50,061 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:50,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:50,087 INFO L225 Difference]: With dead ends: 10416 [2021-06-05 03:49:50,087 INFO L226 Difference]: Without dead ends: 9953 [2021-06-05 03:49:50,087 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 132.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:50,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9953 states. [2021-06-05 03:49:50,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9953 to 5117. [2021-06-05 03:49:50,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.749218139171227) internal successors, (24297), 5116 states have internal predecessors, (24297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:50,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24297 transitions. [2021-06-05 03:49:50,309 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24297 transitions. Word has length 29 [2021-06-05 03:49:50,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:50,309 INFO L482 AbstractCegarLoop]: Abstraction has 5117 states and 24297 transitions. [2021-06-05 03:49:50,309 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:50,309 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24297 transitions. [2021-06-05 03:49:50,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:50,318 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:50,318 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:50,318 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1308 [2021-06-05 03:49:50,318 INFO L430 AbstractCegarLoop]: === Iteration 1310 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:50,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:50,318 INFO L82 PathProgramCache]: Analyzing trace with hash 1318684709, now seen corresponding path program 1305 times [2021-06-05 03:49:50,318 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:50,318 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890697859] [2021-06-05 03:49:50,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:50,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:50,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:50,441 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:50,442 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890697859] [2021-06-05 03:49:50,442 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890697859] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:50,442 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:50,442 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:50,442 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835203833] [2021-06-05 03:49:50,442 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:50,442 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:50,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:50,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:50,442 INFO L87 Difference]: Start difference. First operand 5117 states and 24297 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:50,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:50,550 INFO L93 Difference]: Finished difference Result 10392 states and 46560 transitions. [2021-06-05 03:49:50,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:50,551 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:50,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:50,576 INFO L225 Difference]: With dead ends: 10392 [2021-06-05 03:49:50,576 INFO L226 Difference]: Without dead ends: 9915 [2021-06-05 03:49:50,576 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 150.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:50,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9915 states. [2021-06-05 03:49:50,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9915 to 5189. [2021-06-05 03:49:50,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5189 states, 5188 states have (on average 4.73650732459522) internal successors, (24573), 5188 states have internal predecessors, (24573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:50,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5189 states to 5189 states and 24573 transitions. [2021-06-05 03:49:50,796 INFO L78 Accepts]: Start accepts. Automaton has 5189 states and 24573 transitions. Word has length 29 [2021-06-05 03:49:50,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:50,796 INFO L482 AbstractCegarLoop]: Abstraction has 5189 states and 24573 transitions. [2021-06-05 03:49:50,796 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:50,796 INFO L276 IsEmpty]: Start isEmpty. Operand 5189 states and 24573 transitions. [2021-06-05 03:49:50,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:50,805 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:50,805 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:50,805 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1309 [2021-06-05 03:49:50,805 INFO L430 AbstractCegarLoop]: === Iteration 1311 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:50,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:50,805 INFO L82 PathProgramCache]: Analyzing trace with hash -1188900827, now seen corresponding path program 1306 times [2021-06-05 03:49:50,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:50,806 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939187945] [2021-06-05 03:49:50,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:50,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:50,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:50,931 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:50,931 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939187945] [2021-06-05 03:49:50,931 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939187945] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:50,931 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:50,932 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:50,932 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610851186] [2021-06-05 03:49:50,932 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:50,932 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:50,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:50,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:50,932 INFO L87 Difference]: Start difference. First operand 5189 states and 24573 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:51,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:51,040 INFO L93 Difference]: Finished difference Result 10058 states and 45258 transitions. [2021-06-05 03:49:51,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:51,040 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:51,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:51,065 INFO L225 Difference]: With dead ends: 10058 [2021-06-05 03:49:51,065 INFO L226 Difference]: Without dead ends: 9523 [2021-06-05 03:49:51,065 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 150.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:51,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9523 states. [2021-06-05 03:49:51,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9523 to 5117. [2021-06-05 03:49:51,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.7445269741985925) internal successors, (24273), 5116 states have internal predecessors, (24273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:51,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24273 transitions. [2021-06-05 03:49:51,288 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24273 transitions. Word has length 29 [2021-06-05 03:49:51,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:51,288 INFO L482 AbstractCegarLoop]: Abstraction has 5117 states and 24273 transitions. [2021-06-05 03:49:51,289 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:51,289 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24273 transitions. [2021-06-05 03:49:51,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:51,297 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:51,297 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:51,297 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1310 [2021-06-05 03:49:51,298 INFO L430 AbstractCegarLoop]: === Iteration 1312 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:51,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:51,298 INFO L82 PathProgramCache]: Analyzing trace with hash 1706689671, now seen corresponding path program 1307 times [2021-06-05 03:49:51,298 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:51,298 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110951756] [2021-06-05 03:49:51,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:51,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:51,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:51,413 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:51,413 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110951756] [2021-06-05 03:49:51,413 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110951756] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:51,413 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:51,413 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:51,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819643404] [2021-06-05 03:49:51,413 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:51,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:51,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:51,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:51,413 INFO L87 Difference]: Start difference. First operand 5117 states and 24273 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:51,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:51,504 INFO L93 Difference]: Finished difference Result 10306 states and 46143 transitions. [2021-06-05 03:49:51,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:51,504 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:51,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:51,528 INFO L225 Difference]: With dead ends: 10306 [2021-06-05 03:49:51,529 INFO L226 Difference]: Without dead ends: 9891 [2021-06-05 03:49:51,529 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 123.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:51,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9891 states. [2021-06-05 03:49:51,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9891 to 5165. [2021-06-05 03:49:51,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5165 states, 5164 states have (on average 4.7345081332300545) internal successors, (24449), 5164 states have internal predecessors, (24449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:51,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5165 states to 5165 states and 24449 transitions. [2021-06-05 03:49:51,753 INFO L78 Accepts]: Start accepts. Automaton has 5165 states and 24449 transitions. Word has length 29 [2021-06-05 03:49:51,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:51,753 INFO L482 AbstractCegarLoop]: Abstraction has 5165 states and 24449 transitions. [2021-06-05 03:49:51,753 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:51,753 INFO L276 IsEmpty]: Start isEmpty. Operand 5165 states and 24449 transitions. [2021-06-05 03:49:51,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:51,762 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:51,762 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:51,762 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1311 [2021-06-05 03:49:51,762 INFO L430 AbstractCegarLoop]: === Iteration 1313 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:51,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:51,762 INFO L82 PathProgramCache]: Analyzing trace with hash -1678672667, now seen corresponding path program 1308 times [2021-06-05 03:49:51,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:51,762 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078178900] [2021-06-05 03:49:51,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:51,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:51,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:51,876 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:51,876 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078178900] [2021-06-05 03:49:51,876 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078178900] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:51,876 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:51,876 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:51,876 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703199886] [2021-06-05 03:49:51,876 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:51,876 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:51,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:51,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:51,877 INFO L87 Difference]: Start difference. First operand 5165 states and 24449 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:51,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:51,985 INFO L93 Difference]: Finished difference Result 10034 states and 45134 transitions. [2021-06-05 03:49:51,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:51,985 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:51,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:52,009 INFO L225 Difference]: With dead ends: 10034 [2021-06-05 03:49:52,009 INFO L226 Difference]: Without dead ends: 9499 [2021-06-05 03:49:52,009 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 139.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:52,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9499 states. [2021-06-05 03:49:52,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9499 to 5093. [2021-06-05 03:49:52,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5093 states, 5092 states have (on average 4.749607227022781) internal successors, (24185), 5092 states have internal predecessors, (24185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:52,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5093 states to 5093 states and 24185 transitions. [2021-06-05 03:49:52,227 INFO L78 Accepts]: Start accepts. Automaton has 5093 states and 24185 transitions. Word has length 29 [2021-06-05 03:49:52,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:52,227 INFO L482 AbstractCegarLoop]: Abstraction has 5093 states and 24185 transitions. [2021-06-05 03:49:52,227 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:52,228 INFO L276 IsEmpty]: Start isEmpty. Operand 5093 states and 24185 transitions. [2021-06-05 03:49:52,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:52,236 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:52,236 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:52,236 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1312 [2021-06-05 03:49:52,236 INFO L430 AbstractCegarLoop]: === Iteration 1314 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:52,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:52,236 INFO L82 PathProgramCache]: Analyzing trace with hash 139336711, now seen corresponding path program 1309 times [2021-06-05 03:49:52,237 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:52,237 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807749280] [2021-06-05 03:49:52,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:52,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:52,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:52,343 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:52,343 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807749280] [2021-06-05 03:49:52,343 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807749280] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:52,343 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:52,343 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:52,343 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606082595] [2021-06-05 03:49:52,343 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:52,343 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:52,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:52,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:52,343 INFO L87 Difference]: Start difference. First operand 5093 states and 24185 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:52,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:52,469 INFO L93 Difference]: Finished difference Result 10664 states and 47760 transitions. [2021-06-05 03:49:52,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:52,469 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:52,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:52,495 INFO L225 Difference]: With dead ends: 10664 [2021-06-05 03:49:52,495 INFO L226 Difference]: Without dead ends: 10187 [2021-06-05 03:49:52,495 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 132.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:52,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10187 states. [2021-06-05 03:49:52,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10187 to 5207. [2021-06-05 03:49:52,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5207 states, 5206 states have (on average 4.738762965808682) internal successors, (24670), 5206 states have internal predecessors, (24670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:52,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5207 states to 5207 states and 24670 transitions. [2021-06-05 03:49:52,730 INFO L78 Accepts]: Start accepts. Automaton has 5207 states and 24670 transitions. Word has length 29 [2021-06-05 03:49:52,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:52,730 INFO L482 AbstractCegarLoop]: Abstraction has 5207 states and 24670 transitions. [2021-06-05 03:49:52,730 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:52,730 INFO L276 IsEmpty]: Start isEmpty. Operand 5207 states and 24670 transitions. [2021-06-05 03:49:52,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:52,739 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:52,739 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:52,739 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1313 [2021-06-05 03:49:52,739 INFO L430 AbstractCegarLoop]: === Iteration 1315 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:52,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:52,739 INFO L82 PathProgramCache]: Analyzing trace with hash -1548909561, now seen corresponding path program 1310 times [2021-06-05 03:49:52,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:52,739 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258339006] [2021-06-05 03:49:52,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:52,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:52,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:52,845 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:52,845 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258339006] [2021-06-05 03:49:52,845 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258339006] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:52,845 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:52,845 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:52,846 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175366702] [2021-06-05 03:49:52,846 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:52,846 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:52,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:52,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:52,846 INFO L87 Difference]: Start difference. First operand 5207 states and 24670 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:52,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:52,966 INFO L93 Difference]: Finished difference Result 10662 states and 47677 transitions. [2021-06-05 03:49:52,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:52,966 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:52,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:52,991 INFO L225 Difference]: With dead ends: 10662 [2021-06-05 03:49:52,992 INFO L226 Difference]: Without dead ends: 10109 [2021-06-05 03:49:52,992 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 131.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:53,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10109 states. [2021-06-05 03:49:53,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10109 to 5129. [2021-06-05 03:49:53,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5129 states, 5128 states have (on average 4.746684867394696) internal successors, (24341), 5128 states have internal predecessors, (24341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:53,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5129 states to 5129 states and 24341 transitions. [2021-06-05 03:49:53,259 INFO L78 Accepts]: Start accepts. Automaton has 5129 states and 24341 transitions. Word has length 29 [2021-06-05 03:49:53,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:53,260 INFO L482 AbstractCegarLoop]: Abstraction has 5129 states and 24341 transitions. [2021-06-05 03:49:53,260 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:53,260 INFO L276 IsEmpty]: Start isEmpty. Operand 5129 states and 24341 transitions. [2021-06-05 03:49:53,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:53,269 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:53,269 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:53,269 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1314 [2021-06-05 03:49:53,269 INFO L430 AbstractCegarLoop]: === Iteration 1316 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:53,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:53,269 INFO L82 PathProgramCache]: Analyzing trace with hash -1893675931, now seen corresponding path program 1311 times [2021-06-05 03:49:53,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:53,269 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543493300] [2021-06-05 03:49:53,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:53,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:53,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:53,383 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:53,383 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543493300] [2021-06-05 03:49:53,383 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543493300] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:53,383 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:53,383 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:53,384 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756408081] [2021-06-05 03:49:53,384 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:53,384 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:53,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:53,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:53,384 INFO L87 Difference]: Start difference. First operand 5129 states and 24341 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:53,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:53,492 INFO L93 Difference]: Finished difference Result 10488 states and 46992 transitions. [2021-06-05 03:49:53,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:53,493 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:53,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:53,518 INFO L225 Difference]: With dead ends: 10488 [2021-06-05 03:49:53,518 INFO L226 Difference]: Without dead ends: 10011 [2021-06-05 03:49:53,518 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 139.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:53,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10011 states. [2021-06-05 03:49:53,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10011 to 5201. [2021-06-05 03:49:53,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5201 states, 5200 states have (on average 4.734038461538462) internal successors, (24617), 5200 states have internal predecessors, (24617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:53,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5201 states to 5201 states and 24617 transitions. [2021-06-05 03:49:53,743 INFO L78 Accepts]: Start accepts. Automaton has 5201 states and 24617 transitions. Word has length 29 [2021-06-05 03:49:53,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:53,743 INFO L482 AbstractCegarLoop]: Abstraction has 5201 states and 24617 transitions. [2021-06-05 03:49:53,744 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:53,744 INFO L276 IsEmpty]: Start isEmpty. Operand 5201 states and 24617 transitions. [2021-06-05 03:49:53,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:53,753 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:53,753 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:53,753 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1315 [2021-06-05 03:49:53,753 INFO L430 AbstractCegarLoop]: === Iteration 1317 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:53,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:53,753 INFO L82 PathProgramCache]: Analyzing trace with hash 520700935, now seen corresponding path program 1312 times [2021-06-05 03:49:53,753 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:53,753 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287061770] [2021-06-05 03:49:53,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:53,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:53,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:53,867 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:53,867 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287061770] [2021-06-05 03:49:53,867 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287061770] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:53,867 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:53,867 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:53,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897159438] [2021-06-05 03:49:53,867 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:53,867 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:53,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:53,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:53,867 INFO L87 Difference]: Start difference. First operand 5201 states and 24617 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:53,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:53,981 INFO L93 Difference]: Finished difference Result 10154 states and 45690 transitions. [2021-06-05 03:49:53,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:53,982 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:53,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:54,010 INFO L225 Difference]: With dead ends: 10154 [2021-06-05 03:49:54,010 INFO L226 Difference]: Without dead ends: 9619 [2021-06-05 03:49:54,010 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 138.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:54,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9619 states. [2021-06-05 03:49:54,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9619 to 5129. [2021-06-05 03:49:54,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5129 states, 5128 states have (on average 4.739664586583463) internal successors, (24305), 5128 states have internal predecessors, (24305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:54,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5129 states to 5129 states and 24305 transitions. [2021-06-05 03:49:54,235 INFO L78 Accepts]: Start accepts. Automaton has 5129 states and 24305 transitions. Word has length 29 [2021-06-05 03:49:54,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:54,235 INFO L482 AbstractCegarLoop]: Abstraction has 5129 states and 24305 transitions. [2021-06-05 03:49:54,235 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:54,235 INFO L276 IsEmpty]: Start isEmpty. Operand 5129 states and 24305 transitions. [2021-06-05 03:49:54,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:54,243 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:54,244 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:54,244 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1316 [2021-06-05 03:49:54,244 INFO L430 AbstractCegarLoop]: === Iteration 1318 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:54,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:54,244 INFO L82 PathProgramCache]: Analyzing trace with hash -1861956601, now seen corresponding path program 1313 times [2021-06-05 03:49:54,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:54,244 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112929870] [2021-06-05 03:49:54,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:54,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:54,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:54,347 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:54,347 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112929870] [2021-06-05 03:49:54,347 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112929870] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:54,347 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:54,347 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:54,347 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235804580] [2021-06-05 03:49:54,347 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:54,347 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:54,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:54,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:54,348 INFO L87 Difference]: Start difference. First operand 5129 states and 24305 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:54,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:54,463 INFO L93 Difference]: Finished difference Result 10486 states and 46951 transitions. [2021-06-05 03:49:54,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:54,463 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:54,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:54,489 INFO L225 Difference]: With dead ends: 10486 [2021-06-05 03:49:54,489 INFO L226 Difference]: Without dead ends: 10011 [2021-06-05 03:49:54,489 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:54,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10011 states. [2021-06-05 03:49:54,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10011 to 5201. [2021-06-05 03:49:54,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5201 states, 5200 states have (on average 4.727115384615384) internal successors, (24581), 5200 states have internal predecessors, (24581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:54,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5201 states to 5201 states and 24581 transitions. [2021-06-05 03:49:54,720 INFO L78 Accepts]: Start accepts. Automaton has 5201 states and 24581 transitions. Word has length 29 [2021-06-05 03:49:54,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:54,720 INFO L482 AbstractCegarLoop]: Abstraction has 5201 states and 24581 transitions. [2021-06-05 03:49:54,720 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:54,720 INFO L276 IsEmpty]: Start isEmpty. Operand 5201 states and 24581 transitions. [2021-06-05 03:49:54,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:54,730 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:54,730 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:54,730 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1317 [2021-06-05 03:49:54,730 INFO L430 AbstractCegarLoop]: === Iteration 1319 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:54,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:54,730 INFO L82 PathProgramCache]: Analyzing trace with hash 316931045, now seen corresponding path program 1314 times [2021-06-05 03:49:54,730 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:54,730 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276124543] [2021-06-05 03:49:54,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:54,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:54,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:54,834 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:54,834 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276124543] [2021-06-05 03:49:54,834 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276124543] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:54,834 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:54,834 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:54,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831669421] [2021-06-05 03:49:54,834 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:54,834 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:54,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:54,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:54,834 INFO L87 Difference]: Start difference. First operand 5201 states and 24581 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:54,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:54,956 INFO L93 Difference]: Finished difference Result 10154 states and 45654 transitions. [2021-06-05 03:49:54,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:54,956 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:54,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:54,982 INFO L225 Difference]: With dead ends: 10154 [2021-06-05 03:49:54,982 INFO L226 Difference]: Without dead ends: 9583 [2021-06-05 03:49:54,982 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 129.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:55,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9583 states. [2021-06-05 03:49:55,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9583 to 5093. [2021-06-05 03:49:55,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5093 states, 5092 states have (on average 4.747250589159465) internal successors, (24173), 5092 states have internal predecessors, (24173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:55,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5093 states to 5093 states and 24173 transitions. [2021-06-05 03:49:55,211 INFO L78 Accepts]: Start accepts. Automaton has 5093 states and 24173 transitions. Word has length 29 [2021-06-05 03:49:55,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:55,211 INFO L482 AbstractCegarLoop]: Abstraction has 5093 states and 24173 transitions. [2021-06-05 03:49:55,211 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:55,212 INFO L276 IsEmpty]: Start isEmpty. Operand 5093 states and 24173 transitions. [2021-06-05 03:49:55,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:55,222 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:55,222 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:55,222 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1318 [2021-06-05 03:49:55,222 INFO L430 AbstractCegarLoop]: === Iteration 1320 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:55,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:55,222 INFO L82 PathProgramCache]: Analyzing trace with hash 218857449, now seen corresponding path program 1315 times [2021-06-05 03:49:55,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:55,222 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041392581] [2021-06-05 03:49:55,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:55,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:55,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:55,337 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:55,337 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041392581] [2021-06-05 03:49:55,337 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041392581] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:55,337 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:55,337 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:55,337 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810567541] [2021-06-05 03:49:55,337 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:55,337 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:55,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:55,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:55,338 INFO L87 Difference]: Start difference. First operand 5093 states and 24173 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:55,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:55,450 INFO L93 Difference]: Finished difference Result 10412 states and 46602 transitions. [2021-06-05 03:49:55,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:55,450 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:55,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:55,476 INFO L225 Difference]: With dead ends: 10412 [2021-06-05 03:49:55,476 INFO L226 Difference]: Without dead ends: 9997 [2021-06-05 03:49:55,476 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 123.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:55,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9997 states. [2021-06-05 03:49:55,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9997 to 5165. [2021-06-05 03:49:55,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5165 states, 5164 states have (on average 4.739155693261038) internal successors, (24473), 5164 states have internal predecessors, (24473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:55,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5165 states to 5165 states and 24473 transitions. [2021-06-05 03:49:55,705 INFO L78 Accepts]: Start accepts. Automaton has 5165 states and 24473 transitions. Word has length 29 [2021-06-05 03:49:55,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:55,705 INFO L482 AbstractCegarLoop]: Abstraction has 5165 states and 24473 transitions. [2021-06-05 03:49:55,705 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:55,705 INFO L276 IsEmpty]: Start isEmpty. Operand 5165 states and 24473 transitions. [2021-06-05 03:49:55,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:55,714 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:55,714 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:55,714 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1319 [2021-06-05 03:49:55,714 INFO L430 AbstractCegarLoop]: === Iteration 1321 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:55,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:55,715 INFO L82 PathProgramCache]: Analyzing trace with hash -627939513, now seen corresponding path program 1316 times [2021-06-05 03:49:55,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:55,715 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959667563] [2021-06-05 03:49:55,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:55,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:55,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:55,828 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:55,828 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959667563] [2021-06-05 03:49:55,828 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959667563] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:55,828 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:55,828 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:55,828 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998577387] [2021-06-05 03:49:55,828 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:55,828 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:55,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:55,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:55,828 INFO L87 Difference]: Start difference. First operand 5165 states and 24473 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:55,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:55,949 INFO L93 Difference]: Finished difference Result 10472 states and 46818 transitions. [2021-06-05 03:49:55,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:55,949 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:55,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:55,974 INFO L225 Difference]: With dead ends: 10472 [2021-06-05 03:49:55,974 INFO L226 Difference]: Without dead ends: 9949 [2021-06-05 03:49:55,974 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 138.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:56,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9949 states. [2021-06-05 03:49:56,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9949 to 5117. [2021-06-05 03:49:56,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.7445269741985925) internal successors, (24273), 5116 states have internal predecessors, (24273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:56,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24273 transitions. [2021-06-05 03:49:56,201 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24273 transitions. Word has length 29 [2021-06-05 03:49:56,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:56,201 INFO L482 AbstractCegarLoop]: Abstraction has 5117 states and 24273 transitions. [2021-06-05 03:49:56,201 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:56,201 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24273 transitions. [2021-06-05 03:49:56,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:56,210 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:56,210 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:56,210 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1320 [2021-06-05 03:49:56,210 INFO L430 AbstractCegarLoop]: === Iteration 1322 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:56,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:56,210 INFO L82 PathProgramCache]: Analyzing trace with hash -1814155193, now seen corresponding path program 1317 times [2021-06-05 03:49:56,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:56,211 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117578488] [2021-06-05 03:49:56,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:56,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:56,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:56,314 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:56,314 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117578488] [2021-06-05 03:49:56,315 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117578488] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:56,315 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:56,315 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:56,315 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324678185] [2021-06-05 03:49:56,315 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:56,315 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:56,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:56,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:56,315 INFO L87 Difference]: Start difference. First operand 5117 states and 24273 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:56,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:56,415 INFO L93 Difference]: Finished difference Result 10304 states and 46138 transitions. [2021-06-05 03:49:56,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:56,415 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:56,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:56,441 INFO L225 Difference]: With dead ends: 10304 [2021-06-05 03:49:56,441 INFO L226 Difference]: Without dead ends: 9889 [2021-06-05 03:49:56,441 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 111.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:56,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9889 states. [2021-06-05 03:49:56,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9889 to 5165. [2021-06-05 03:49:56,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5165 states, 5164 states have (on average 4.7345081332300545) internal successors, (24449), 5164 states have internal predecessors, (24449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:56,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5165 states to 5165 states and 24449 transitions. [2021-06-05 03:49:56,670 INFO L78 Accepts]: Start accepts. Automaton has 5165 states and 24449 transitions. Word has length 29 [2021-06-05 03:49:56,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:56,670 INFO L482 AbstractCegarLoop]: Abstraction has 5165 states and 24449 transitions. [2021-06-05 03:49:56,671 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:56,671 INFO L276 IsEmpty]: Start isEmpty. Operand 5165 states and 24449 transitions. [2021-06-05 03:49:56,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:56,679 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:56,680 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:56,680 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1321 [2021-06-05 03:49:56,680 INFO L430 AbstractCegarLoop]: === Iteration 1323 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:56,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:56,680 INFO L82 PathProgramCache]: Analyzing trace with hash -277555129, now seen corresponding path program 1318 times [2021-06-05 03:49:56,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:56,680 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360428884] [2021-06-05 03:49:56,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:56,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:56,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:56,784 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:56,784 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360428884] [2021-06-05 03:49:56,784 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360428884] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:56,784 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:56,784 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:56,784 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688765233] [2021-06-05 03:49:56,784 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:56,784 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:56,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:56,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:56,785 INFO L87 Difference]: Start difference. First operand 5165 states and 24449 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:56,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:56,894 INFO L93 Difference]: Finished difference Result 10032 states and 45129 transitions. [2021-06-05 03:49:56,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:56,895 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:56,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:56,919 INFO L225 Difference]: With dead ends: 10032 [2021-06-05 03:49:56,919 INFO L226 Difference]: Without dead ends: 9521 [2021-06-05 03:49:56,919 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:57,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9521 states. [2021-06-05 03:49:57,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9521 to 5117. [2021-06-05 03:49:57,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.739835809225958) internal successors, (24249), 5116 states have internal predecessors, (24249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:57,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24249 transitions. [2021-06-05 03:49:57,135 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24249 transitions. Word has length 29 [2021-06-05 03:49:57,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:57,135 INFO L482 AbstractCegarLoop]: Abstraction has 5117 states and 24249 transitions. [2021-06-05 03:49:57,135 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:57,135 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24249 transitions. [2021-06-05 03:49:57,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:57,143 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:57,143 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:57,143 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1322 [2021-06-05 03:49:57,143 INFO L430 AbstractCegarLoop]: === Iteration 1324 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:57,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:57,144 INFO L82 PathProgramCache]: Analyzing trace with hash 1624064037, now seen corresponding path program 1319 times [2021-06-05 03:49:57,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:57,144 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937125644] [2021-06-05 03:49:57,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:57,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:57,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:57,246 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:57,246 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937125644] [2021-06-05 03:49:57,247 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937125644] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:57,247 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:57,247 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:57,247 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398246065] [2021-06-05 03:49:57,247 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:57,247 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:57,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:57,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:57,247 INFO L87 Difference]: Start difference. First operand 5117 states and 24249 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:57,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:57,353 INFO L93 Difference]: Finished difference Result 10388 states and 46502 transitions. [2021-06-05 03:49:57,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:57,354 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:57,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:57,379 INFO L225 Difference]: With dead ends: 10388 [2021-06-05 03:49:57,379 INFO L226 Difference]: Without dead ends: 9913 [2021-06-05 03:49:57,379 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:57,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9913 states. [2021-06-05 03:49:57,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9913 to 5189. [2021-06-05 03:49:57,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5189 states, 5188 states have (on average 4.727255204317657) internal successors, (24525), 5188 states have internal predecessors, (24525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:57,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5189 states to 5189 states and 24525 transitions. [2021-06-05 03:49:57,601 INFO L78 Accepts]: Start accepts. Automaton has 5189 states and 24525 transitions. Word has length 29 [2021-06-05 03:49:57,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:57,601 INFO L482 AbstractCegarLoop]: Abstraction has 5189 states and 24525 transitions. [2021-06-05 03:49:57,601 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:57,601 INFO L276 IsEmpty]: Start isEmpty. Operand 5189 states and 24525 transitions. [2021-06-05 03:49:57,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:57,610 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:57,610 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:57,610 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1323 [2021-06-05 03:49:57,610 INFO L430 AbstractCegarLoop]: === Iteration 1325 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:57,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:57,610 INFO L82 PathProgramCache]: Analyzing trace with hash 450104327, now seen corresponding path program 1320 times [2021-06-05 03:49:57,610 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:57,610 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467881174] [2021-06-05 03:49:57,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:57,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:57,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:57,714 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:57,714 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467881174] [2021-06-05 03:49:57,714 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467881174] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:57,714 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:57,714 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:57,714 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786244761] [2021-06-05 03:49:57,714 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:57,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:57,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:57,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:57,714 INFO L87 Difference]: Start difference. First operand 5189 states and 24525 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:57,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:57,835 INFO L93 Difference]: Finished difference Result 10056 states and 45205 transitions. [2021-06-05 03:49:57,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:57,836 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:57,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:57,859 INFO L225 Difference]: With dead ends: 10056 [2021-06-05 03:49:57,859 INFO L226 Difference]: Without dead ends: 9481 [2021-06-05 03:49:57,860 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:57,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9481 states. [2021-06-05 03:49:58,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9481 to 5077. [2021-06-05 03:49:58,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5077 states, 5076 states have (on average 4.753940110323089) internal successors, (24131), 5076 states have internal predecessors, (24131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:58,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5077 states to 5077 states and 24131 transitions. [2021-06-05 03:49:58,079 INFO L78 Accepts]: Start accepts. Automaton has 5077 states and 24131 transitions. Word has length 29 [2021-06-05 03:49:58,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:58,079 INFO L482 AbstractCegarLoop]: Abstraction has 5077 states and 24131 transitions. [2021-06-05 03:49:58,079 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:58,079 INFO L276 IsEmpty]: Start isEmpty. Operand 5077 states and 24131 transitions. [2021-06-05 03:49:58,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:58,088 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:58,088 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:58,088 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1324 [2021-06-05 03:49:58,088 INFO L430 AbstractCegarLoop]: === Iteration 1326 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:58,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:58,088 INFO L82 PathProgramCache]: Analyzing trace with hash -1093914079, now seen corresponding path program 1321 times [2021-06-05 03:49:58,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:58,088 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019117718] [2021-06-05 03:49:58,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:58,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:58,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:58,207 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:58,208 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019117718] [2021-06-05 03:49:58,208 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019117718] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:58,208 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:58,208 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:58,208 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887242978] [2021-06-05 03:49:58,208 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:58,208 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:58,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:58,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:58,208 INFO L87 Difference]: Start difference. First operand 5077 states and 24131 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:58,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:58,317 INFO L93 Difference]: Finished difference Result 12081 states and 53951 transitions. [2021-06-05 03:49:58,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:58,318 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:58,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:58,346 INFO L225 Difference]: With dead ends: 12081 [2021-06-05 03:49:58,346 INFO L226 Difference]: Without dead ends: 11539 [2021-06-05 03:49:58,346 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 127.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:58,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11539 states. [2021-06-05 03:49:58,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11539 to 5330. [2021-06-05 03:49:58,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5330 states, 5329 states have (on average 4.727153312066053) internal successors, (25191), 5329 states have internal predecessors, (25191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:58,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5330 states to 5330 states and 25191 transitions. [2021-06-05 03:49:58,585 INFO L78 Accepts]: Start accepts. Automaton has 5330 states and 25191 transitions. Word has length 29 [2021-06-05 03:49:58,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:58,585 INFO L482 AbstractCegarLoop]: Abstraction has 5330 states and 25191 transitions. [2021-06-05 03:49:58,585 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:58,586 INFO L276 IsEmpty]: Start isEmpty. Operand 5330 states and 25191 transitions. [2021-06-05 03:49:58,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:58,594 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:58,595 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:58,595 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1325 [2021-06-05 03:49:58,595 INFO L430 AbstractCegarLoop]: === Iteration 1327 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:58,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:58,595 INFO L82 PathProgramCache]: Analyzing trace with hash -12851453, now seen corresponding path program 1322 times [2021-06-05 03:49:58,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:58,595 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715386220] [2021-06-05 03:49:58,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:58,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:58,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:58,712 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:58,712 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715386220] [2021-06-05 03:49:58,712 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715386220] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:58,712 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:58,712 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:58,712 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381101668] [2021-06-05 03:49:58,712 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:58,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:58,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:58,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:58,712 INFO L87 Difference]: Start difference. First operand 5330 states and 25191 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:58,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:58,837 INFO L93 Difference]: Finished difference Result 12016 states and 53582 transitions. [2021-06-05 03:49:58,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:58,837 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:58,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:58,865 INFO L225 Difference]: With dead ends: 12016 [2021-06-05 03:49:58,866 INFO L226 Difference]: Without dead ends: 11396 [2021-06-05 03:49:58,866 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 141.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:58,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11396 states. [2021-06-05 03:49:59,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11396 to 5187. [2021-06-05 03:49:59,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5187 states, 5186 states have (on average 4.746625530273814) internal successors, (24616), 5186 states have internal predecessors, (24616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:59,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 5187 states and 24616 transitions. [2021-06-05 03:49:59,101 INFO L78 Accepts]: Start accepts. Automaton has 5187 states and 24616 transitions. Word has length 29 [2021-06-05 03:49:59,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:59,101 INFO L482 AbstractCegarLoop]: Abstraction has 5187 states and 24616 transitions. [2021-06-05 03:49:59,101 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:59,101 INFO L276 IsEmpty]: Start isEmpty. Operand 5187 states and 24616 transitions. [2021-06-05 03:49:59,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:59,110 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:59,110 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:59,110 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1326 [2021-06-05 03:49:59,110 INFO L430 AbstractCegarLoop]: === Iteration 1328 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:59,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:59,110 INFO L82 PathProgramCache]: Analyzing trace with hash -1574816125, now seen corresponding path program 1323 times [2021-06-05 03:49:59,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:59,110 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937702661] [2021-06-05 03:49:59,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:59,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:59,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:59,235 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:59,235 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937702661] [2021-06-05 03:49:59,235 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937702661] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:59,235 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:59,235 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:59,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898641349] [2021-06-05 03:49:59,235 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:59,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:59,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:59,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:59,236 INFO L87 Difference]: Start difference. First operand 5187 states and 24616 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:59,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:59,340 INFO L93 Difference]: Finished difference Result 11956 states and 53364 transitions. [2021-06-05 03:49:59,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:59,341 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:59,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:59,369 INFO L225 Difference]: With dead ends: 11956 [2021-06-05 03:49:59,369 INFO L226 Difference]: Without dead ends: 11414 [2021-06-05 03:49:59,369 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 133.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:59,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11414 states. [2021-06-05 03:49:59,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11414 to 5267. [2021-06-05 03:49:59,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5267 states, 5266 states have (on average 4.729206228636536) internal successors, (24904), 5266 states have internal predecessors, (24904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:59,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5267 states to 5267 states and 24904 transitions. [2021-06-05 03:49:59,609 INFO L78 Accepts]: Start accepts. Automaton has 5267 states and 24904 transitions. Word has length 29 [2021-06-05 03:49:59,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:49:59,609 INFO L482 AbstractCegarLoop]: Abstraction has 5267 states and 24904 transitions. [2021-06-05 03:49:59,609 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:59,609 INFO L276 IsEmpty]: Start isEmpty. Operand 5267 states and 24904 transitions. [2021-06-05 03:49:59,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:49:59,618 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:49:59,618 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:49:59,618 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1327 [2021-06-05 03:49:59,618 INFO L430 AbstractCegarLoop]: === Iteration 1329 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:49:59,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:49:59,618 INFO L82 PathProgramCache]: Analyzing trace with hash 1031904899, now seen corresponding path program 1324 times [2021-06-05 03:49:59,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:49:59,619 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290107604] [2021-06-05 03:49:59,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:49:59,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:49:59,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:49:59,743 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:49:59,743 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290107604] [2021-06-05 03:49:59,743 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290107604] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:49:59,743 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:49:59,744 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:49:59,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588061216] [2021-06-05 03:49:59,744 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:49:59,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:49:59,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:49:59,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:49:59,744 INFO L87 Difference]: Start difference. First operand 5267 states and 24904 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:49:59,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:49:59,844 INFO L93 Difference]: Finished difference Result 11829 states and 52757 transitions. [2021-06-05 03:49:59,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:49:59,844 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:49:59,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:49:59,873 INFO L225 Difference]: With dead ends: 11829 [2021-06-05 03:49:59,873 INFO L226 Difference]: Without dead ends: 11334 [2021-06-05 03:49:59,873 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 132.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:49:59,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11334 states. [2021-06-05 03:50:00,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11334 to 5187. [2021-06-05 03:50:00,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5187 states, 5186 states have (on average 4.738912456613961) internal successors, (24576), 5186 states have internal predecessors, (24576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:00,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 5187 states and 24576 transitions. [2021-06-05 03:50:00,108 INFO L78 Accepts]: Start accepts. Automaton has 5187 states and 24576 transitions. Word has length 29 [2021-06-05 03:50:00,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:00,108 INFO L482 AbstractCegarLoop]: Abstraction has 5187 states and 24576 transitions. [2021-06-05 03:50:00,108 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:00,108 INFO L276 IsEmpty]: Start isEmpty. Operand 5187 states and 24576 transitions. [2021-06-05 03:50:00,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:00,117 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:00,117 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:00,117 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1328 [2021-06-05 03:50:00,117 INFO L430 AbstractCegarLoop]: === Iteration 1330 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:00,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:00,117 INFO L82 PathProgramCache]: Analyzing trace with hash -1186811163, now seen corresponding path program 1325 times [2021-06-05 03:50:00,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:00,117 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830713040] [2021-06-05 03:50:00,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:00,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:00,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:00,244 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:00,244 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830713040] [2021-06-05 03:50:00,244 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830713040] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:00,244 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:00,244 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:00,244 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994264274] [2021-06-05 03:50:00,244 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:00,244 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:00,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:00,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:00,244 INFO L87 Difference]: Start difference. First operand 5187 states and 24576 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:00,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:00,362 INFO L93 Difference]: Finished difference Result 11794 states and 52664 transitions. [2021-06-05 03:50:00,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:00,363 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:00,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:00,392 INFO L225 Difference]: With dead ends: 11794 [2021-06-05 03:50:00,392 INFO L226 Difference]: Without dead ends: 11317 [2021-06-05 03:50:00,392 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 151.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:00,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11317 states. [2021-06-05 03:50:00,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11317 to 5235. [2021-06-05 03:50:00,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5235 states, 5234 states have (on average 4.729079098204051) internal successors, (24752), 5234 states have internal predecessors, (24752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:00,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5235 states to 5235 states and 24752 transitions. [2021-06-05 03:50:00,627 INFO L78 Accepts]: Start accepts. Automaton has 5235 states and 24752 transitions. Word has length 29 [2021-06-05 03:50:00,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:00,627 INFO L482 AbstractCegarLoop]: Abstraction has 5235 states and 24752 transitions. [2021-06-05 03:50:00,627 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:00,627 INFO L276 IsEmpty]: Start isEmpty. Operand 5235 states and 24752 transitions. [2021-06-05 03:50:00,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:00,636 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:00,636 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:00,636 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1329 [2021-06-05 03:50:00,636 INFO L430 AbstractCegarLoop]: === Iteration 1331 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:00,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:00,636 INFO L82 PathProgramCache]: Analyzing trace with hash -2033608125, now seen corresponding path program 1326 times [2021-06-05 03:50:00,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:00,636 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988217438] [2021-06-05 03:50:00,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:00,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:00,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:00,764 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:00,764 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988217438] [2021-06-05 03:50:00,764 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988217438] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:00,764 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:00,764 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:00,765 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769106478] [2021-06-05 03:50:00,765 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:00,765 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:00,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:00,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:00,765 INFO L87 Difference]: Start difference. First operand 5235 states and 24752 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:00,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:00,875 INFO L93 Difference]: Finished difference Result 11732 states and 52347 transitions. [2021-06-05 03:50:00,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:00,876 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:00,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:00,903 INFO L225 Difference]: With dead ends: 11732 [2021-06-05 03:50:00,904 INFO L226 Difference]: Without dead ends: 11213 [2021-06-05 03:50:00,904 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 135.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:01,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11213 states. [2021-06-05 03:50:01,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11213 to 5131. [2021-06-05 03:50:01,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.751656920077973) internal successors, (24376), 5130 states have internal predecessors, (24376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:01,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24376 transitions. [2021-06-05 03:50:01,141 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24376 transitions. Word has length 29 [2021-06-05 03:50:01,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:01,141 INFO L482 AbstractCegarLoop]: Abstraction has 5131 states and 24376 transitions. [2021-06-05 03:50:01,141 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:01,142 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24376 transitions. [2021-06-05 03:50:01,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:01,151 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:01,151 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:01,151 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1330 [2021-06-05 03:50:01,151 INFO L430 AbstractCegarLoop]: === Iteration 1332 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:01,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:01,151 INFO L82 PathProgramCache]: Analyzing trace with hash 615687683, now seen corresponding path program 1327 times [2021-06-05 03:50:01,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:01,151 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442975167] [2021-06-05 03:50:01,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:01,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:01,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:01,265 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:01,265 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442975167] [2021-06-05 03:50:01,265 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442975167] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:01,265 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:01,265 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:01,265 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782315285] [2021-06-05 03:50:01,266 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:01,266 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:01,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:01,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:01,266 INFO L87 Difference]: Start difference. First operand 5131 states and 24376 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:01,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:01,380 INFO L93 Difference]: Finished difference Result 12232 states and 54610 transitions. [2021-06-05 03:50:01,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:01,380 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:01,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:01,410 INFO L225 Difference]: With dead ends: 12232 [2021-06-05 03:50:01,410 INFO L226 Difference]: Without dead ends: 11690 [2021-06-05 03:50:01,410 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 121.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:01,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11690 states. [2021-06-05 03:50:01,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11690 to 5361. [2021-06-05 03:50:01,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5361 states, 5360 states have (on average 4.71865671641791) internal successors, (25292), 5360 states have internal predecessors, (25292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:01,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5361 states to 5361 states and 25292 transitions. [2021-06-05 03:50:01,657 INFO L78 Accepts]: Start accepts. Automaton has 5361 states and 25292 transitions. Word has length 29 [2021-06-05 03:50:01,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:01,657 INFO L482 AbstractCegarLoop]: Abstraction has 5361 states and 25292 transitions. [2021-06-05 03:50:01,657 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:01,657 INFO L276 IsEmpty]: Start isEmpty. Operand 5361 states and 25292 transitions. [2021-06-05 03:50:01,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:01,666 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:01,666 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:01,666 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1331 [2021-06-05 03:50:01,666 INFO L430 AbstractCegarLoop]: === Iteration 1333 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:01,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:01,666 INFO L82 PathProgramCache]: Analyzing trace with hash 1696750309, now seen corresponding path program 1328 times [2021-06-05 03:50:01,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:01,666 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685970568] [2021-06-05 03:50:01,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:01,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:01,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:01,778 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:01,778 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685970568] [2021-06-05 03:50:01,778 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685970568] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:01,779 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:01,779 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:01,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125607454] [2021-06-05 03:50:01,779 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:01,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:01,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:01,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:01,779 INFO L87 Difference]: Start difference. First operand 5361 states and 25292 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:01,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:01,895 INFO L93 Difference]: Finished difference Result 12167 states and 54241 transitions. [2021-06-05 03:50:01,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:01,895 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:01,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:01,924 INFO L225 Difference]: With dead ends: 12167 [2021-06-05 03:50:01,924 INFO L226 Difference]: Without dead ends: 11547 [2021-06-05 03:50:01,924 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 136.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:02,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11547 states. [2021-06-05 03:50:02,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11547 to 5218. [2021-06-05 03:50:02,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5218 states, 5217 states have (on average 4.734905117883842) internal successors, (24702), 5217 states have internal predecessors, (24702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:02,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5218 states to 5218 states and 24702 transitions. [2021-06-05 03:50:02,160 INFO L78 Accepts]: Start accepts. Automaton has 5218 states and 24702 transitions. Word has length 29 [2021-06-05 03:50:02,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:02,160 INFO L482 AbstractCegarLoop]: Abstraction has 5218 states and 24702 transitions. [2021-06-05 03:50:02,160 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:02,160 INFO L276 IsEmpty]: Start isEmpty. Operand 5218 states and 24702 transitions. [2021-06-05 03:50:02,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:02,168 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:02,168 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:02,169 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1332 [2021-06-05 03:50:02,169 INFO L430 AbstractCegarLoop]: === Iteration 1334 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:02,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:02,169 INFO L82 PathProgramCache]: Analyzing trace with hash 1708658179, now seen corresponding path program 1329 times [2021-06-05 03:50:02,169 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:02,169 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617778304] [2021-06-05 03:50:02,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:02,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:02,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:02,283 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:02,283 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617778304] [2021-06-05 03:50:02,283 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617778304] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:02,283 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:02,283 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:02,283 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361063694] [2021-06-05 03:50:02,283 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:02,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:02,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:02,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:02,284 INFO L87 Difference]: Start difference. First operand 5218 states and 24702 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:02,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:02,378 INFO L93 Difference]: Finished difference Result 12197 states and 54419 transitions. [2021-06-05 03:50:02,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:02,378 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:02,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:02,409 INFO L225 Difference]: With dead ends: 12197 [2021-06-05 03:50:02,409 INFO L226 Difference]: Without dead ends: 11655 [2021-06-05 03:50:02,410 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 122.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:02,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11655 states. [2021-06-05 03:50:02,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11655 to 5328. [2021-06-05 03:50:02,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5328 states, 5327 states have (on average 4.7131593767599025) internal successors, (25107), 5327 states have internal predecessors, (25107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:02,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5328 states to 5328 states and 25107 transitions. [2021-06-05 03:50:02,686 INFO L78 Accepts]: Start accepts. Automaton has 5328 states and 25107 transitions. Word has length 29 [2021-06-05 03:50:02,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:02,686 INFO L482 AbstractCegarLoop]: Abstraction has 5328 states and 25107 transitions. [2021-06-05 03:50:02,686 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:02,686 INFO L276 IsEmpty]: Start isEmpty. Operand 5328 states and 25107 transitions. [2021-06-05 03:50:02,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:02,695 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:02,695 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:02,695 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1333 [2021-06-05 03:50:02,695 INFO L430 AbstractCegarLoop]: === Iteration 1335 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:02,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:02,695 INFO L82 PathProgramCache]: Analyzing trace with hash 1758225923, now seen corresponding path program 1330 times [2021-06-05 03:50:02,695 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:02,695 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945909381] [2021-06-05 03:50:02,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:02,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:02,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:02,806 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:02,806 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945909381] [2021-06-05 03:50:02,806 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945909381] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:02,806 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:02,806 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:02,806 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967149062] [2021-06-05 03:50:02,806 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:02,806 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:02,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:02,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:02,806 INFO L87 Difference]: Start difference. First operand 5328 states and 25107 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:02,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:02,919 INFO L93 Difference]: Finished difference Result 12130 states and 54046 transitions. [2021-06-05 03:50:02,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:02,919 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:02,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:02,948 INFO L225 Difference]: With dead ends: 12130 [2021-06-05 03:50:02,948 INFO L226 Difference]: Without dead ends: 11545 [2021-06-05 03:50:02,948 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 135.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:03,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11545 states. [2021-06-05 03:50:03,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11545 to 5218. [2021-06-05 03:50:03,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5218 states, 5217 states have (on average 4.724362660532873) internal successors, (24647), 5217 states have internal predecessors, (24647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:03,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5218 states to 5218 states and 24647 transitions. [2021-06-05 03:50:03,187 INFO L78 Accepts]: Start accepts. Automaton has 5218 states and 24647 transitions. Word has length 29 [2021-06-05 03:50:03,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:03,187 INFO L482 AbstractCegarLoop]: Abstraction has 5218 states and 24647 transitions. [2021-06-05 03:50:03,187 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:03,187 INFO L276 IsEmpty]: Start isEmpty. Operand 5218 states and 24647 transitions. [2021-06-05 03:50:03,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:03,196 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:03,196 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:03,196 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1334 [2021-06-05 03:50:03,196 INFO L430 AbstractCegarLoop]: === Iteration 1336 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:03,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:03,196 INFO L82 PathProgramCache]: Analyzing trace with hash 2096663141, now seen corresponding path program 1331 times [2021-06-05 03:50:03,196 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:03,196 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467022431] [2021-06-05 03:50:03,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:03,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:03,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:03,307 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:03,307 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467022431] [2021-06-05 03:50:03,307 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467022431] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:03,307 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:03,307 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:03,307 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240550288] [2021-06-05 03:50:03,307 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:03,307 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:03,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:03,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:03,307 INFO L87 Difference]: Start difference. First operand 5218 states and 24647 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:03,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:03,420 INFO L93 Difference]: Finished difference Result 12035 states and 53704 transitions. [2021-06-05 03:50:03,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:03,420 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:03,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:03,450 INFO L225 Difference]: With dead ends: 12035 [2021-06-05 03:50:03,450 INFO L226 Difference]: Without dead ends: 11558 [2021-06-05 03:50:03,450 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 135.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:03,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11558 states. [2021-06-05 03:50:03,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11558 to 5296. [2021-06-05 03:50:03,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5296 states, 5295 states have (on average 4.710103871576959) internal successors, (24940), 5295 states have internal predecessors, (24940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:03,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5296 states to 5296 states and 24940 transitions. [2021-06-05 03:50:03,691 INFO L78 Accepts]: Start accepts. Automaton has 5296 states and 24940 transitions. Word has length 29 [2021-06-05 03:50:03,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:03,691 INFO L482 AbstractCegarLoop]: Abstraction has 5296 states and 24940 transitions. [2021-06-05 03:50:03,691 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:03,692 INFO L276 IsEmpty]: Start isEmpty. Operand 5296 states and 24940 transitions. [2021-06-05 03:50:03,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:03,701 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:03,701 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:03,701 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1335 [2021-06-05 03:50:03,701 INFO L430 AbstractCegarLoop]: === Iteration 1337 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:03,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:03,701 INFO L82 PathProgramCache]: Analyzing trace with hash -19416509, now seen corresponding path program 1332 times [2021-06-05 03:50:03,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:03,701 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120584339] [2021-06-05 03:50:03,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:03,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:03,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:03,812 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:03,812 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120584339] [2021-06-05 03:50:03,812 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120584339] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:03,812 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:03,812 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:03,812 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790606928] [2021-06-05 03:50:03,813 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:03,813 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:03,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:03,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:03,813 INFO L87 Difference]: Start difference. First operand 5296 states and 24940 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:03,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:03,929 INFO L93 Difference]: Finished difference Result 12033 states and 53621 transitions. [2021-06-05 03:50:03,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:03,929 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:03,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:03,958 INFO L225 Difference]: With dead ends: 12033 [2021-06-05 03:50:03,958 INFO L226 Difference]: Without dead ends: 11393 [2021-06-05 03:50:03,958 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 136.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:04,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11393 states. [2021-06-05 03:50:04,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11393 to 5131. [2021-06-05 03:50:04,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.744639376218323) internal successors, (24340), 5130 states have internal predecessors, (24340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:04,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24340 transitions. [2021-06-05 03:50:04,194 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24340 transitions. Word has length 29 [2021-06-05 03:50:04,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:04,194 INFO L482 AbstractCegarLoop]: Abstraction has 5131 states and 24340 transitions. [2021-06-05 03:50:04,194 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:04,194 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24340 transitions. [2021-06-05 03:50:04,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:04,203 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:04,203 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:04,203 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1336 [2021-06-05 03:50:04,203 INFO L430 AbstractCegarLoop]: === Iteration 1338 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:04,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:04,203 INFO L82 PathProgramCache]: Analyzing trace with hash -173698587, now seen corresponding path program 1333 times [2021-06-05 03:50:04,203 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:04,203 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928109746] [2021-06-05 03:50:04,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:04,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:04,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:04,328 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:04,328 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928109746] [2021-06-05 03:50:04,328 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928109746] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:04,328 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:04,328 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:04,328 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61585341] [2021-06-05 03:50:04,328 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:04,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:04,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:04,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:04,329 INFO L87 Difference]: Start difference. First operand 5131 states and 24340 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:04,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:04,425 INFO L93 Difference]: Finished difference Result 11905 states and 53172 transitions. [2021-06-05 03:50:04,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:04,426 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:04,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:04,456 INFO L225 Difference]: With dead ends: 11905 [2021-06-05 03:50:04,456 INFO L226 Difference]: Without dead ends: 11363 [2021-06-05 03:50:04,457 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 131.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:04,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11363 states. [2021-06-05 03:50:04,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11363 to 5251. [2021-06-05 03:50:04,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5251 states, 5250 states have (on average 4.729904761904762) internal successors, (24832), 5250 states have internal predecessors, (24832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:04,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5251 states to 5251 states and 24832 transitions. [2021-06-05 03:50:04,695 INFO L78 Accepts]: Start accepts. Automaton has 5251 states and 24832 transitions. Word has length 29 [2021-06-05 03:50:04,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:04,695 INFO L482 AbstractCegarLoop]: Abstraction has 5251 states and 24832 transitions. [2021-06-05 03:50:04,695 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:04,695 INFO L276 IsEmpty]: Start isEmpty. Operand 5251 states and 24832 transitions. [2021-06-05 03:50:04,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:04,704 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:04,704 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:04,704 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1337 [2021-06-05 03:50:04,704 INFO L430 AbstractCegarLoop]: === Iteration 1339 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:04,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:04,704 INFO L82 PathProgramCache]: Analyzing trace with hash -1861944859, now seen corresponding path program 1334 times [2021-06-05 03:50:04,704 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:04,704 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059802893] [2021-06-05 03:50:04,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:04,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:04,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:04,830 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:04,831 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059802893] [2021-06-05 03:50:04,831 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059802893] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:04,831 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:04,831 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:04,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142569533] [2021-06-05 03:50:04,831 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:04,831 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:04,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:04,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:04,831 INFO L87 Difference]: Start difference. First operand 5251 states and 24832 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:04,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:04,928 INFO L93 Difference]: Finished difference Result 11778 states and 52565 transitions. [2021-06-05 03:50:04,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:04,928 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:04,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:04,956 INFO L225 Difference]: With dead ends: 11778 [2021-06-05 03:50:04,956 INFO L226 Difference]: Without dead ends: 11283 [2021-06-05 03:50:04,956 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 134.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:05,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11283 states. [2021-06-05 03:50:05,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11283 to 5171. [2021-06-05 03:50:05,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5171 states, 5170 states have (on average 4.739651837524178) internal successors, (24504), 5170 states have internal predecessors, (24504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:05,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5171 states to 5171 states and 24504 transitions. [2021-06-05 03:50:05,189 INFO L78 Accepts]: Start accepts. Automaton has 5171 states and 24504 transitions. Word has length 29 [2021-06-05 03:50:05,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:05,189 INFO L482 AbstractCegarLoop]: Abstraction has 5171 states and 24504 transitions. [2021-06-05 03:50:05,189 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:05,189 INFO L276 IsEmpty]: Start isEmpty. Operand 5171 states and 24504 transitions. [2021-06-05 03:50:05,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:05,198 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:05,198 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:05,198 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1338 [2021-06-05 03:50:05,198 INFO L430 AbstractCegarLoop]: === Iteration 1340 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:05,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:05,198 INFO L82 PathProgramCache]: Analyzing trace with hash 2098207171, now seen corresponding path program 1335 times [2021-06-05 03:50:05,198 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:05,199 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887942197] [2021-06-05 03:50:05,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:05,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:05,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:05,318 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:05,318 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887942197] [2021-06-05 03:50:05,318 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887942197] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:05,318 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:05,318 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:05,318 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278666495] [2021-06-05 03:50:05,318 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:05,318 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:05,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:05,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:05,319 INFO L87 Difference]: Start difference. First operand 5171 states and 24504 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:05,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:05,419 INFO L93 Difference]: Finished difference Result 11995 states and 53543 transitions. [2021-06-05 03:50:05,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:05,419 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:05,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:05,448 INFO L225 Difference]: With dead ends: 11995 [2021-06-05 03:50:05,448 INFO L226 Difference]: Without dead ends: 11453 [2021-06-05 03:50:05,448 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 127.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:05,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11453 states. [2021-06-05 03:50:05,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11453 to 5281. [2021-06-05 03:50:05,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5281 states, 5280 states have (on average 4.7176136363636365) internal successors, (24909), 5280 states have internal predecessors, (24909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:05,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5281 states to 5281 states and 24909 transitions. [2021-06-05 03:50:05,696 INFO L78 Accepts]: Start accepts. Automaton has 5281 states and 24909 transitions. Word has length 29 [2021-06-05 03:50:05,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:05,696 INFO L482 AbstractCegarLoop]: Abstraction has 5281 states and 24909 transitions. [2021-06-05 03:50:05,697 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:05,697 INFO L276 IsEmpty]: Start isEmpty. Operand 5281 states and 24909 transitions. [2021-06-05 03:50:05,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:05,706 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:05,706 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:05,706 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1339 [2021-06-05 03:50:05,706 INFO L430 AbstractCegarLoop]: === Iteration 1341 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:05,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:05,706 INFO L82 PathProgramCache]: Analyzing trace with hash -827139611, now seen corresponding path program 1336 times [2021-06-05 03:50:05,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:05,706 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143703442] [2021-06-05 03:50:05,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:05,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:05,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:05,823 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:05,823 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143703442] [2021-06-05 03:50:05,823 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143703442] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:05,823 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:05,823 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:05,823 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395805554] [2021-06-05 03:50:05,823 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:05,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:05,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:05,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:05,824 INFO L87 Difference]: Start difference. First operand 5281 states and 24909 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:05,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:05,939 INFO L93 Difference]: Finished difference Result 11928 states and 53170 transitions. [2021-06-05 03:50:05,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:05,940 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:05,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:05,968 INFO L225 Difference]: With dead ends: 11928 [2021-06-05 03:50:05,968 INFO L226 Difference]: Without dead ends: 11343 [2021-06-05 03:50:05,968 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 142.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:06,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11343 states. [2021-06-05 03:50:06,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11343 to 5171. [2021-06-05 03:50:06,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5171 states, 5170 states have (on average 4.731914893617021) internal successors, (24464), 5170 states have internal predecessors, (24464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:06,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5171 states to 5171 states and 24464 transitions. [2021-06-05 03:50:06,206 INFO L78 Accepts]: Start accepts. Automaton has 5171 states and 24464 transitions. Word has length 29 [2021-06-05 03:50:06,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:06,206 INFO L482 AbstractCegarLoop]: Abstraction has 5171 states and 24464 transitions. [2021-06-05 03:50:06,206 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:06,206 INFO L276 IsEmpty]: Start isEmpty. Operand 5171 states and 24464 transitions. [2021-06-05 03:50:06,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:06,215 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:06,215 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:06,215 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1340 [2021-06-05 03:50:06,215 INFO L430 AbstractCegarLoop]: === Iteration 1342 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:06,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:06,215 INFO L82 PathProgramCache]: Analyzing trace with hash -1471983131, now seen corresponding path program 1337 times [2021-06-05 03:50:06,216 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:06,216 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980798507] [2021-06-05 03:50:06,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:06,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:06,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:06,346 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:06,346 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980798507] [2021-06-05 03:50:06,346 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980798507] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:06,346 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:06,346 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:06,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983784660] [2021-06-05 03:50:06,346 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:06,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:06,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:06,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:06,346 INFO L87 Difference]: Start difference. First operand 5171 states and 24464 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:06,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:06,445 INFO L93 Difference]: Finished difference Result 11679 states and 52158 transitions. [2021-06-05 03:50:06,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:06,445 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:06,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:06,474 INFO L225 Difference]: With dead ends: 11679 [2021-06-05 03:50:06,474 INFO L226 Difference]: Without dead ends: 11264 [2021-06-05 03:50:06,474 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 138.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:06,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11264 states. [2021-06-05 03:50:06,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11264 to 5219. [2021-06-05 03:50:06,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5219 states, 5218 states have (on average 4.722115753162131) internal successors, (24640), 5218 states have internal predecessors, (24640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:06,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5219 states to 5219 states and 24640 transitions. [2021-06-05 03:50:06,715 INFO L78 Accepts]: Start accepts. Automaton has 5219 states and 24640 transitions. Word has length 29 [2021-06-05 03:50:06,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:06,715 INFO L482 AbstractCegarLoop]: Abstraction has 5219 states and 24640 transitions. [2021-06-05 03:50:06,715 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:06,715 INFO L276 IsEmpty]: Start isEmpty. Operand 5219 states and 24640 transitions. [2021-06-05 03:50:06,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:06,724 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:06,724 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:06,724 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1341 [2021-06-05 03:50:06,724 INFO L430 AbstractCegarLoop]: === Iteration 1343 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:06,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:06,724 INFO L82 PathProgramCache]: Analyzing trace with hash 1976187203, now seen corresponding path program 1338 times [2021-06-05 03:50:06,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:06,724 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071436301] [2021-06-05 03:50:06,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:06,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:06,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:06,856 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:06,856 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071436301] [2021-06-05 03:50:06,856 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071436301] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:06,856 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:06,856 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:06,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119738557] [2021-06-05 03:50:06,856 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:06,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:06,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:06,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:06,856 INFO L87 Difference]: Start difference. First operand 5219 states and 24640 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:06,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:06,983 INFO L93 Difference]: Finished difference Result 11739 states and 52374 transitions. [2021-06-05 03:50:06,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:06,983 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:06,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:07,011 INFO L225 Difference]: With dead ends: 11739 [2021-06-05 03:50:07,012 INFO L226 Difference]: Without dead ends: 11176 [2021-06-05 03:50:07,012 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 154.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:07,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11176 states. [2021-06-05 03:50:07,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11176 to 5131. [2021-06-05 03:50:07,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.7407407407407405) internal successors, (24320), 5130 states have internal predecessors, (24320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:07,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24320 transitions. [2021-06-05 03:50:07,246 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24320 transitions. Word has length 29 [2021-06-05 03:50:07,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:07,246 INFO L482 AbstractCegarLoop]: Abstraction has 5131 states and 24320 transitions. [2021-06-05 03:50:07,246 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:07,246 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24320 transitions. [2021-06-05 03:50:07,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:07,255 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:07,255 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:07,255 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1342 [2021-06-05 03:50:07,255 INFO L430 AbstractCegarLoop]: === Iteration 1344 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:07,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:07,255 INFO L82 PathProgramCache]: Analyzing trace with hash -94177849, now seen corresponding path program 1339 times [2021-06-05 03:50:07,256 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:07,256 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285898801] [2021-06-05 03:50:07,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:07,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:07,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:07,394 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:07,394 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285898801] [2021-06-05 03:50:07,394 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285898801] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:07,394 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:07,394 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:07,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382667676] [2021-06-05 03:50:07,394 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:07,394 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:07,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:07,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:07,394 INFO L87 Difference]: Start difference. First operand 5131 states and 24320 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:07,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:07,514 INFO L93 Difference]: Finished difference Result 11598 states and 51866 transitions. [2021-06-05 03:50:07,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:07,514 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:07,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:07,542 INFO L225 Difference]: With dead ends: 11598 [2021-06-05 03:50:07,542 INFO L226 Difference]: Without dead ends: 11121 [2021-06-05 03:50:07,542 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 158.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:07,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11121 states. [2021-06-05 03:50:07,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11121 to 5203. [2021-06-05 03:50:07,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5203 states, 5202 states have (on average 4.73279507881584) internal successors, (24620), 5202 states have internal predecessors, (24620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:07,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5203 states to 5203 states and 24620 transitions. [2021-06-05 03:50:07,778 INFO L78 Accepts]: Start accepts. Automaton has 5203 states and 24620 transitions. Word has length 29 [2021-06-05 03:50:07,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:07,779 INFO L482 AbstractCegarLoop]: Abstraction has 5203 states and 24620 transitions. [2021-06-05 03:50:07,779 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:07,779 INFO L276 IsEmpty]: Start isEmpty. Operand 5203 states and 24620 transitions. [2021-06-05 03:50:07,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:07,790 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:07,791 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:07,791 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1343 [2021-06-05 03:50:07,791 INFO L430 AbstractCegarLoop]: === Iteration 1345 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:07,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:07,791 INFO L82 PathProgramCache]: Analyzing trace with hash -940974811, now seen corresponding path program 1340 times [2021-06-05 03:50:07,791 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:07,791 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998507427] [2021-06-05 03:50:07,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:07,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:07,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:07,922 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:07,922 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998507427] [2021-06-05 03:50:07,923 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998507427] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:07,923 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:07,923 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:07,923 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203541731] [2021-06-05 03:50:07,923 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:07,923 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:07,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:07,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:07,923 INFO L87 Difference]: Start difference. First operand 5203 states and 24620 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:08,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:08,024 INFO L93 Difference]: Finished difference Result 11536 states and 51549 transitions. [2021-06-05 03:50:08,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:08,025 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:08,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:08,053 INFO L225 Difference]: With dead ends: 11536 [2021-06-05 03:50:08,054 INFO L226 Difference]: Without dead ends: 11073 [2021-06-05 03:50:08,054 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 138.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:08,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11073 states. [2021-06-05 03:50:08,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11073 to 5155. [2021-06-05 03:50:08,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5155 states, 5154 states have (on average 4.738067520372526) internal successors, (24420), 5154 states have internal predecessors, (24420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:08,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 24420 transitions. [2021-06-05 03:50:08,292 INFO L78 Accepts]: Start accepts. Automaton has 5155 states and 24420 transitions. Word has length 29 [2021-06-05 03:50:08,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:08,292 INFO L482 AbstractCegarLoop]: Abstraction has 5155 states and 24420 transitions. [2021-06-05 03:50:08,293 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:08,293 INFO L276 IsEmpty]: Start isEmpty. Operand 5155 states and 24420 transitions. [2021-06-05 03:50:08,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:08,303 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:08,303 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:08,303 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1344 [2021-06-05 03:50:08,303 INFO L430 AbstractCegarLoop]: === Iteration 1346 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:08,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:08,303 INFO L82 PathProgramCache]: Analyzing trace with hash -2117239387, now seen corresponding path program 1341 times [2021-06-05 03:50:08,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:08,303 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827276900] [2021-06-05 03:50:08,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:08,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:08,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:08,425 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:08,425 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827276900] [2021-06-05 03:50:08,425 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827276900] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:08,425 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:08,425 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:08,425 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184205063] [2021-06-05 03:50:08,425 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:08,425 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:08,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:08,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:08,426 INFO L87 Difference]: Start difference. First operand 5155 states and 24420 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:08,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:08,539 INFO L93 Difference]: Finished difference Result 11688 states and 52253 transitions. [2021-06-05 03:50:08,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:08,539 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:08,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:08,568 INFO L225 Difference]: With dead ends: 11688 [2021-06-05 03:50:08,568 INFO L226 Difference]: Without dead ends: 11211 [2021-06-05 03:50:08,568 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 147.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:08,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11211 states. [2021-06-05 03:50:08,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11211 to 5233. [2021-06-05 03:50:08,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5233 states, 5232 states have (on average 4.7234327217125385) internal successors, (24713), 5232 states have internal predecessors, (24713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:08,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5233 states to 5233 states and 24713 transitions. [2021-06-05 03:50:08,801 INFO L78 Accepts]: Start accepts. Automaton has 5233 states and 24713 transitions. Word has length 29 [2021-06-05 03:50:08,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:08,801 INFO L482 AbstractCegarLoop]: Abstraction has 5233 states and 24713 transitions. [2021-06-05 03:50:08,801 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:08,801 INFO L276 IsEmpty]: Start isEmpty. Operand 5233 states and 24713 transitions. [2021-06-05 03:50:08,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:08,810 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:08,810 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:08,810 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1345 [2021-06-05 03:50:08,810 INFO L430 AbstractCegarLoop]: === Iteration 1347 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:08,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:08,810 INFO L82 PathProgramCache]: Analyzing trace with hash 1381701029, now seen corresponding path program 1342 times [2021-06-05 03:50:08,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:08,810 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328366681] [2021-06-05 03:50:08,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:08,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:08,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:08,929 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:08,930 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328366681] [2021-06-05 03:50:08,930 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328366681] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:08,930 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:08,930 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:08,930 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470388188] [2021-06-05 03:50:08,930 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:08,930 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:08,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:08,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:08,930 INFO L87 Difference]: Start difference. First operand 5233 states and 24713 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:09,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:09,054 INFO L93 Difference]: Finished difference Result 11686 states and 52170 transitions. [2021-06-05 03:50:09,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:09,054 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:09,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:09,082 INFO L225 Difference]: With dead ends: 11686 [2021-06-05 03:50:09,083 INFO L226 Difference]: Without dead ends: 11133 [2021-06-05 03:50:09,083 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 147.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:09,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11133 states. [2021-06-05 03:50:09,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11133 to 5155. [2021-06-05 03:50:09,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5155 states, 5154 states have (on average 4.733410942956927) internal successors, (24396), 5154 states have internal predecessors, (24396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:09,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 24396 transitions. [2021-06-05 03:50:09,320 INFO L78 Accepts]: Start accepts. Automaton has 5155 states and 24396 transitions. Word has length 29 [2021-06-05 03:50:09,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:09,320 INFO L482 AbstractCegarLoop]: Abstraction has 5155 states and 24396 transitions. [2021-06-05 03:50:09,320 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:09,320 INFO L276 IsEmpty]: Start isEmpty. Operand 5155 states and 24396 transitions. [2021-06-05 03:50:09,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:09,331 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:09,331 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:09,331 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1346 [2021-06-05 03:50:09,331 INFO L430 AbstractCegarLoop]: === Iteration 1348 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:09,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:09,332 INFO L82 PathProgramCache]: Analyzing trace with hash 1320979843, now seen corresponding path program 1343 times [2021-06-05 03:50:09,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:09,332 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748581780] [2021-06-05 03:50:09,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:09,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:09,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:09,463 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:09,463 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748581780] [2021-06-05 03:50:09,463 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748581780] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:09,463 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:09,463 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:09,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865396995] [2021-06-05 03:50:09,464 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:09,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:09,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:09,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:09,464 INFO L87 Difference]: Start difference. First operand 5155 states and 24396 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:09,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:09,557 INFO L93 Difference]: Finished difference Result 11534 states and 51544 transitions. [2021-06-05 03:50:09,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:09,557 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:09,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:09,584 INFO L225 Difference]: With dead ends: 11534 [2021-06-05 03:50:09,585 INFO L226 Difference]: Without dead ends: 11119 [2021-06-05 03:50:09,585 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 139.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:09,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11119 states. [2021-06-05 03:50:09,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11119 to 5203. [2021-06-05 03:50:09,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5203 states, 5202 states have (on average 4.723567858515955) internal successors, (24572), 5202 states have internal predecessors, (24572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:09,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5203 states to 5203 states and 24572 transitions. [2021-06-05 03:50:09,825 INFO L78 Accepts]: Start accepts. Automaton has 5203 states and 24572 transitions. Word has length 29 [2021-06-05 03:50:09,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:09,825 INFO L482 AbstractCegarLoop]: Abstraction has 5203 states and 24572 transitions. [2021-06-05 03:50:09,825 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:09,825 INFO L276 IsEmpty]: Start isEmpty. Operand 5203 states and 24572 transitions. [2021-06-05 03:50:09,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:09,834 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:09,834 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:09,834 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1347 [2021-06-05 03:50:09,834 INFO L430 AbstractCegarLoop]: === Iteration 1349 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:09,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:09,834 INFO L82 PathProgramCache]: Analyzing trace with hash 840077797, now seen corresponding path program 1344 times [2021-06-05 03:50:09,834 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:09,834 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301972951] [2021-06-05 03:50:09,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:09,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:09,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:09,964 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:09,964 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301972951] [2021-06-05 03:50:09,964 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301972951] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:09,964 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:09,964 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:09,964 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352404696] [2021-06-05 03:50:09,965 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:09,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:09,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:09,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:09,965 INFO L87 Difference]: Start difference. First operand 5203 states and 24572 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:10,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:10,087 INFO L93 Difference]: Finished difference Result 11594 states and 51760 transitions. [2021-06-05 03:50:10,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:10,087 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:10,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:10,116 INFO L225 Difference]: With dead ends: 11594 [2021-06-05 03:50:10,116 INFO L226 Difference]: Without dead ends: 11011 [2021-06-05 03:50:10,116 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 155.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:10,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11011 states. [2021-06-05 03:50:10,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11011 to 5095. [2021-06-05 03:50:10,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5095 states, 5094 states have (on average 4.752650176678445) internal successors, (24210), 5094 states have internal predecessors, (24210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:10,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5095 states to 5095 states and 24210 transitions. [2021-06-05 03:50:10,358 INFO L78 Accepts]: Start accepts. Automaton has 5095 states and 24210 transitions. Word has length 29 [2021-06-05 03:50:10,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:10,358 INFO L482 AbstractCegarLoop]: Abstraction has 5095 states and 24210 transitions. [2021-06-05 03:50:10,358 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:10,359 INFO L276 IsEmpty]: Start isEmpty. Operand 5095 states and 24210 transitions. [2021-06-05 03:50:10,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:10,367 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:10,367 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:10,367 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1348 [2021-06-05 03:50:10,367 INFO L430 AbstractCegarLoop]: === Iteration 1350 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:10,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:10,367 INFO L82 PathProgramCache]: Analyzing trace with hash 1055276291, now seen corresponding path program 1345 times [2021-06-05 03:50:10,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:10,367 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663590675] [2021-06-05 03:50:10,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:10,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:10,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:10,488 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:10,488 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663590675] [2021-06-05 03:50:10,488 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663590675] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:10,488 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:10,488 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:10,488 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371688216] [2021-06-05 03:50:10,488 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:10,488 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:10,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:10,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:10,488 INFO L87 Difference]: Start difference. First operand 5095 states and 24210 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:10,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:10,586 INFO L93 Difference]: Finished difference Result 11974 states and 53490 transitions. [2021-06-05 03:50:10,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:10,586 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:10,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:10,614 INFO L225 Difference]: With dead ends: 11974 [2021-06-05 03:50:10,614 INFO L226 Difference]: Without dead ends: 11432 [2021-06-05 03:50:10,614 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:10,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11432 states. [2021-06-05 03:50:10,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11432 to 5322. [2021-06-05 03:50:10,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5322 states, 5321 states have (on average 4.725615485810938) internal successors, (25145), 5321 states have internal predecessors, (25145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:10,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5322 states to 5322 states and 25145 transitions. [2021-06-05 03:50:10,856 INFO L78 Accepts]: Start accepts. Automaton has 5322 states and 25145 transitions. Word has length 29 [2021-06-05 03:50:10,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:10,856 INFO L482 AbstractCegarLoop]: Abstraction has 5322 states and 25145 transitions. [2021-06-05 03:50:10,856 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:10,857 INFO L276 IsEmpty]: Start isEmpty. Operand 5322 states and 25145 transitions. [2021-06-05 03:50:10,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:10,866 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:10,866 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:10,866 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1349 [2021-06-05 03:50:10,866 INFO L430 AbstractCegarLoop]: === Iteration 1351 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:10,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:10,866 INFO L82 PathProgramCache]: Analyzing trace with hash 2136338917, now seen corresponding path program 1346 times [2021-06-05 03:50:10,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:10,866 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343489273] [2021-06-05 03:50:10,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:10,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:10,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:10,987 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:10,988 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343489273] [2021-06-05 03:50:10,988 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343489273] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:10,988 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:10,988 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:10,988 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160656980] [2021-06-05 03:50:10,988 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:10,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:10,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:10,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:10,988 INFO L87 Difference]: Start difference. First operand 5322 states and 25145 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:11,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:11,110 INFO L93 Difference]: Finished difference Result 11909 states and 53121 transitions. [2021-06-05 03:50:11,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:11,111 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:11,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:11,138 INFO L225 Difference]: With dead ends: 11909 [2021-06-05 03:50:11,139 INFO L226 Difference]: Without dead ends: 11289 [2021-06-05 03:50:11,139 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 146.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:11,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11289 states. [2021-06-05 03:50:11,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11289 to 5179. [2021-06-05 03:50:11,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.745075318655852) internal successors, (24570), 5178 states have internal predecessors, (24570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:11,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24570 transitions. [2021-06-05 03:50:11,374 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24570 transitions. Word has length 29 [2021-06-05 03:50:11,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:11,374 INFO L482 AbstractCegarLoop]: Abstraction has 5179 states and 24570 transitions. [2021-06-05 03:50:11,374 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:11,374 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24570 transitions. [2021-06-05 03:50:11,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:11,383 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:11,383 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:11,383 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1350 [2021-06-05 03:50:11,383 INFO L430 AbstractCegarLoop]: === Iteration 1352 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:11,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:11,383 INFO L82 PathProgramCache]: Analyzing trace with hash 574374245, now seen corresponding path program 1347 times [2021-06-05 03:50:11,383 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:11,383 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612227313] [2021-06-05 03:50:11,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:11,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:11,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:11,512 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:11,512 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612227313] [2021-06-05 03:50:11,512 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612227313] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:11,512 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:11,512 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:11,512 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347928322] [2021-06-05 03:50:11,512 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:11,512 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:11,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:11,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:11,512 INFO L87 Difference]: Start difference. First operand 5179 states and 24570 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:11,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:11,619 INFO L93 Difference]: Finished difference Result 11849 states and 52903 transitions. [2021-06-05 03:50:11,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:11,619 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:11,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:11,647 INFO L225 Difference]: With dead ends: 11849 [2021-06-05 03:50:11,648 INFO L226 Difference]: Without dead ends: 11307 [2021-06-05 03:50:11,648 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 137.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:11,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11307 states. [2021-06-05 03:50:11,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11307 to 5259. [2021-06-05 03:50:11,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5259 states, 5258 states have (on average 4.7276531000380375) internal successors, (24858), 5258 states have internal predecessors, (24858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:11,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5259 states to 5259 states and 24858 transitions. [2021-06-05 03:50:11,946 INFO L78 Accepts]: Start accepts. Automaton has 5259 states and 24858 transitions. Word has length 29 [2021-06-05 03:50:11,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:11,946 INFO L482 AbstractCegarLoop]: Abstraction has 5259 states and 24858 transitions. [2021-06-05 03:50:11,946 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:11,946 INFO L276 IsEmpty]: Start isEmpty. Operand 5259 states and 24858 transitions. [2021-06-05 03:50:11,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:11,955 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:11,955 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:11,955 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1351 [2021-06-05 03:50:11,955 INFO L430 AbstractCegarLoop]: === Iteration 1353 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:11,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:11,956 INFO L82 PathProgramCache]: Analyzing trace with hash -1113872027, now seen corresponding path program 1348 times [2021-06-05 03:50:11,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:11,956 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125148707] [2021-06-05 03:50:11,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:11,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:12,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:12,079 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:12,079 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125148707] [2021-06-05 03:50:12,080 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125148707] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:12,080 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:12,080 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:12,080 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081067733] [2021-06-05 03:50:12,080 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:12,080 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:12,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:12,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:12,080 INFO L87 Difference]: Start difference. First operand 5259 states and 24858 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:12,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:12,191 INFO L93 Difference]: Finished difference Result 11722 states and 52296 transitions. [2021-06-05 03:50:12,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:12,191 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:12,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:12,219 INFO L225 Difference]: With dead ends: 11722 [2021-06-05 03:50:12,219 INFO L226 Difference]: Without dead ends: 11227 [2021-06-05 03:50:12,219 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 131.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:12,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11227 states. [2021-06-05 03:50:12,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11227 to 5179. [2021-06-05 03:50:12,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.73735032831209) internal successors, (24530), 5178 states have internal predecessors, (24530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:12,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24530 transitions. [2021-06-05 03:50:12,454 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24530 transitions. Word has length 29 [2021-06-05 03:50:12,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:12,454 INFO L482 AbstractCegarLoop]: Abstraction has 5179 states and 24530 transitions. [2021-06-05 03:50:12,454 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:12,454 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24530 transitions. [2021-06-05 03:50:12,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:12,463 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:12,463 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:12,463 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1352 [2021-06-05 03:50:12,463 INFO L430 AbstractCegarLoop]: === Iteration 1354 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:12,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:12,463 INFO L82 PathProgramCache]: Analyzing trace with hash 962379207, now seen corresponding path program 1349 times [2021-06-05 03:50:12,463 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:12,463 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948253155] [2021-06-05 03:50:12,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:12,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:12,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:12,590 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:12,590 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948253155] [2021-06-05 03:50:12,590 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948253155] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:12,590 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:12,590 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:12,590 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15252480] [2021-06-05 03:50:12,590 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:12,590 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:12,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:12,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:12,591 INFO L87 Difference]: Start difference. First operand 5179 states and 24530 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:12,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:12,704 INFO L93 Difference]: Finished difference Result 11687 states and 52203 transitions. [2021-06-05 03:50:12,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:12,704 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:12,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:12,732 INFO L225 Difference]: With dead ends: 11687 [2021-06-05 03:50:12,732 INFO L226 Difference]: Without dead ends: 11210 [2021-06-05 03:50:12,732 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 151.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:12,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11210 states. [2021-06-05 03:50:12,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11210 to 5227. [2021-06-05 03:50:12,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5227 states, 5226 states have (on average 4.727516264829697) internal successors, (24706), 5226 states have internal predecessors, (24706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:12,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5227 states to 5227 states and 24706 transitions. [2021-06-05 03:50:12,969 INFO L78 Accepts]: Start accepts. Automaton has 5227 states and 24706 transitions. Word has length 29 [2021-06-05 03:50:12,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:12,969 INFO L482 AbstractCegarLoop]: Abstraction has 5227 states and 24706 transitions. [2021-06-05 03:50:12,969 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:12,969 INFO L276 IsEmpty]: Start isEmpty. Operand 5227 states and 24706 transitions. [2021-06-05 03:50:12,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:12,978 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:12,978 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:12,978 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1353 [2021-06-05 03:50:12,978 INFO L430 AbstractCegarLoop]: === Iteration 1355 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:12,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:12,978 INFO L82 PathProgramCache]: Analyzing trace with hash 115582245, now seen corresponding path program 1350 times [2021-06-05 03:50:12,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:12,978 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796858434] [2021-06-05 03:50:12,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:12,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:13,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:13,106 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:13,106 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796858434] [2021-06-05 03:50:13,106 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796858434] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:13,106 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:13,106 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:13,106 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881518375] [2021-06-05 03:50:13,107 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:13,107 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:13,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:13,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:13,107 INFO L87 Difference]: Start difference. First operand 5227 states and 24706 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:13,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:13,222 INFO L93 Difference]: Finished difference Result 11625 states and 51886 transitions. [2021-06-05 03:50:13,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:13,222 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:13,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:13,252 INFO L225 Difference]: With dead ends: 11625 [2021-06-05 03:50:13,252 INFO L226 Difference]: Without dead ends: 11106 [2021-06-05 03:50:13,252 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 136.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:13,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11106 states. [2021-06-05 03:50:13,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11106 to 5123. [2021-06-05 03:50:13,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5123 states, 5122 states have (on average 4.750097618117922) internal successors, (24330), 5122 states have internal predecessors, (24330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:13,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5123 states to 5123 states and 24330 transitions. [2021-06-05 03:50:13,488 INFO L78 Accepts]: Start accepts. Automaton has 5123 states and 24330 transitions. Word has length 29 [2021-06-05 03:50:13,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:13,488 INFO L482 AbstractCegarLoop]: Abstraction has 5123 states and 24330 transitions. [2021-06-05 03:50:13,488 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:13,488 INFO L276 IsEmpty]: Start isEmpty. Operand 5123 states and 24330 transitions. [2021-06-05 03:50:13,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:13,496 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:13,497 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:13,497 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1354 [2021-06-05 03:50:13,497 INFO L430 AbstractCegarLoop]: === Iteration 1356 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:13,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:13,497 INFO L82 PathProgramCache]: Analyzing trace with hash 2146342147, now seen corresponding path program 1351 times [2021-06-05 03:50:13,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:13,497 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93290164] [2021-06-05 03:50:13,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:13,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:13,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:13,620 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:13,620 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93290164] [2021-06-05 03:50:13,620 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93290164] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:13,620 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:13,620 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:13,620 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358748550] [2021-06-05 03:50:13,620 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:13,620 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:13,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:13,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:13,620 INFO L87 Difference]: Start difference. First operand 5123 states and 24330 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:13,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:13,725 INFO L93 Difference]: Finished difference Result 11939 states and 53372 transitions. [2021-06-05 03:50:13,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:13,725 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:13,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:13,754 INFO L225 Difference]: With dead ends: 11939 [2021-06-05 03:50:13,754 INFO L226 Difference]: Without dead ends: 11397 [2021-06-05 03:50:13,754 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 131.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:13,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11397 states. [2021-06-05 03:50:13,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11397 to 5334. [2021-06-05 03:50:13,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5334 states, 5333 states have (on average 4.722482655165948) internal successors, (25185), 5333 states have internal predecessors, (25185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:13,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5334 states to 5334 states and 25185 transitions. [2021-06-05 03:50:13,996 INFO L78 Accepts]: Start accepts. Automaton has 5334 states and 25185 transitions. Word has length 29 [2021-06-05 03:50:13,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:13,996 INFO L482 AbstractCegarLoop]: Abstraction has 5334 states and 25185 transitions. [2021-06-05 03:50:13,996 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:13,996 INFO L276 IsEmpty]: Start isEmpty. Operand 5334 states and 25185 transitions. [2021-06-05 03:50:14,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:14,005 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:14,005 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:14,005 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1355 [2021-06-05 03:50:14,005 INFO L430 AbstractCegarLoop]: === Iteration 1357 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:14,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:14,006 INFO L82 PathProgramCache]: Analyzing trace with hash -1067562523, now seen corresponding path program 1352 times [2021-06-05 03:50:14,006 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:14,006 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984818898] [2021-06-05 03:50:14,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:14,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:14,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:14,127 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:14,127 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984818898] [2021-06-05 03:50:14,127 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984818898] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:14,127 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:14,127 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:14,127 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319412500] [2021-06-05 03:50:14,127 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:14,127 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:14,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:14,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:14,128 INFO L87 Difference]: Start difference. First operand 5334 states and 25185 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:14,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:14,259 INFO L93 Difference]: Finished difference Result 11874 states and 53003 transitions. [2021-06-05 03:50:14,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:14,259 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:14,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:14,288 INFO L225 Difference]: With dead ends: 11874 [2021-06-05 03:50:14,289 INFO L226 Difference]: Without dead ends: 11254 [2021-06-05 03:50:14,289 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 146.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:14,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11254 states. [2021-06-05 03:50:14,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11254 to 5191. [2021-06-05 03:50:14,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.739499036608863) internal successors, (24598), 5190 states have internal predecessors, (24598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:14,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24598 transitions. [2021-06-05 03:50:14,532 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24598 transitions. Word has length 29 [2021-06-05 03:50:14,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:14,532 INFO L482 AbstractCegarLoop]: Abstraction has 5191 states and 24598 transitions. [2021-06-05 03:50:14,532 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:14,532 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24598 transitions. [2021-06-05 03:50:14,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:14,541 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:14,541 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:14,541 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1356 [2021-06-05 03:50:14,541 INFO L430 AbstractCegarLoop]: === Iteration 1358 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:14,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:14,542 INFO L82 PathProgramCache]: Analyzing trace with hash 1833295107, now seen corresponding path program 1353 times [2021-06-05 03:50:14,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:14,542 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491657417] [2021-06-05 03:50:14,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:14,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:14,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:14,678 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:14,678 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491657417] [2021-06-05 03:50:14,678 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491657417] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:14,678 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:14,678 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:14,678 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384312794] [2021-06-05 03:50:14,678 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:14,678 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:14,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:14,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:14,678 INFO L87 Difference]: Start difference. First operand 5191 states and 24598 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:14,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:14,774 INFO L93 Difference]: Finished difference Result 11663 states and 52194 transitions. [2021-06-05 03:50:14,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:14,774 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:14,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:14,803 INFO L225 Difference]: With dead ends: 11663 [2021-06-05 03:50:14,803 INFO L226 Difference]: Without dead ends: 11121 [2021-06-05 03:50:14,803 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 143.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:14,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11121 states. [2021-06-05 03:50:15,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11121 to 5295. [2021-06-05 03:50:15,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5295 states, 5294 states have (on average 4.719682659614658) internal successors, (24986), 5294 states have internal predecessors, (24986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:15,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5295 states to 5295 states and 24986 transitions. [2021-06-05 03:50:15,041 INFO L78 Accepts]: Start accepts. Automaton has 5295 states and 24986 transitions. Word has length 29 [2021-06-05 03:50:15,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:15,041 INFO L482 AbstractCegarLoop]: Abstraction has 5295 states and 24986 transitions. [2021-06-05 03:50:15,042 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:15,042 INFO L276 IsEmpty]: Start isEmpty. Operand 5295 states and 24986 transitions. [2021-06-05 03:50:15,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:15,050 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:15,050 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:15,050 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1357 [2021-06-05 03:50:15,051 INFO L430 AbstractCegarLoop]: === Iteration 1359 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:15,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:15,051 INFO L82 PathProgramCache]: Analyzing trace with hash 1063523587, now seen corresponding path program 1354 times [2021-06-05 03:50:15,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:15,051 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650046695] [2021-06-05 03:50:15,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:15,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:15,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:15,185 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:15,185 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650046695] [2021-06-05 03:50:15,185 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650046695] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:15,185 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:15,185 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:15,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910755352] [2021-06-05 03:50:15,185 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:15,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:15,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:15,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:15,185 INFO L87 Difference]: Start difference. First operand 5295 states and 24986 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:15,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:15,303 INFO L93 Difference]: Finished difference Result 11264 states and 50602 transitions. [2021-06-05 03:50:15,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:15,303 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:15,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:15,330 INFO L225 Difference]: With dead ends: 11264 [2021-06-05 03:50:15,330 INFO L226 Difference]: Without dead ends: 10697 [2021-06-05 03:50:15,331 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 158.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:15,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10697 states. [2021-06-05 03:50:15,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10697 to 5191. [2021-06-05 03:50:15,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.729479768786127) internal successors, (24546), 5190 states have internal predecessors, (24546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:15,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24546 transitions. [2021-06-05 03:50:15,563 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24546 transitions. Word has length 29 [2021-06-05 03:50:15,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:15,563 INFO L482 AbstractCegarLoop]: Abstraction has 5191 states and 24546 transitions. [2021-06-05 03:50:15,563 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:15,563 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24546 transitions. [2021-06-05 03:50:15,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:15,572 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:15,572 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:15,572 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1358 [2021-06-05 03:50:15,572 INFO L430 AbstractCegarLoop]: === Iteration 1360 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:15,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:15,572 INFO L82 PathProgramCache]: Analyzing trace with hash -2073667227, now seen corresponding path program 1355 times [2021-06-05 03:50:15,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:15,572 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815058112] [2021-06-05 03:50:15,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:15,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:15,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:15,704 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:15,704 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815058112] [2021-06-05 03:50:15,704 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815058112] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:15,704 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:15,704 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:15,704 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070503503] [2021-06-05 03:50:15,704 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:15,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:15,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:15,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:15,704 INFO L87 Difference]: Start difference. First operand 5191 states and 24546 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:15,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:15,815 INFO L93 Difference]: Finished difference Result 11566 states and 51740 transitions. [2021-06-05 03:50:15,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:15,815 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:15,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:15,843 INFO L225 Difference]: With dead ends: 11566 [2021-06-05 03:50:15,843 INFO L226 Difference]: Without dead ends: 11089 [2021-06-05 03:50:15,843 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 156.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:15,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11089 states. [2021-06-05 03:50:16,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11089 to 5263. [2021-06-05 03:50:16,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5263 states, 5262 states have (on average 4.717217787913341) internal successors, (24822), 5262 states have internal predecessors, (24822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:16,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5263 states to 5263 states and 24822 transitions. [2021-06-05 03:50:16,081 INFO L78 Accepts]: Start accepts. Automaton has 5263 states and 24822 transitions. Word has length 29 [2021-06-05 03:50:16,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:16,081 INFO L482 AbstractCegarLoop]: Abstraction has 5263 states and 24822 transitions. [2021-06-05 03:50:16,081 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:16,081 INFO L276 IsEmpty]: Start isEmpty. Operand 5263 states and 24822 transitions. [2021-06-05 03:50:16,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:16,090 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:16,090 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:16,090 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1359 [2021-06-05 03:50:16,090 INFO L430 AbstractCegarLoop]: === Iteration 1361 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:16,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:16,090 INFO L82 PathProgramCache]: Analyzing trace with hash 1861622339, now seen corresponding path program 1356 times [2021-06-05 03:50:16,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:16,090 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704143846] [2021-06-05 03:50:16,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:16,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:16,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:16,222 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:16,222 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704143846] [2021-06-05 03:50:16,222 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704143846] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:16,222 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:16,222 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:16,222 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441777476] [2021-06-05 03:50:16,222 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:16,222 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:16,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:16,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:16,222 INFO L87 Difference]: Start difference. First operand 5263 states and 24822 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:16,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:16,343 INFO L93 Difference]: Finished difference Result 11232 states and 50438 transitions. [2021-06-05 03:50:16,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:16,343 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:16,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:16,370 INFO L225 Difference]: With dead ends: 11232 [2021-06-05 03:50:16,370 INFO L226 Difference]: Without dead ends: 10629 [2021-06-05 03:50:16,370 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 156.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:16,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10629 states. [2021-06-05 03:50:16,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10629 to 5123. [2021-06-05 03:50:16,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5123 states, 5122 states have (on average 4.744631003514252) internal successors, (24302), 5122 states have internal predecessors, (24302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:16,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5123 states to 5123 states and 24302 transitions. [2021-06-05 03:50:16,605 INFO L78 Accepts]: Start accepts. Automaton has 5123 states and 24302 transitions. Word has length 29 [2021-06-05 03:50:16,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:16,605 INFO L482 AbstractCegarLoop]: Abstraction has 5123 states and 24302 transitions. [2021-06-05 03:50:16,605 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:16,605 INFO L276 IsEmpty]: Start isEmpty. Operand 5123 states and 24302 transitions. [2021-06-05 03:50:16,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:16,614 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:16,614 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:16,614 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1360 [2021-06-05 03:50:16,614 INFO L430 AbstractCegarLoop]: === Iteration 1362 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:16,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:16,614 INFO L82 PathProgramCache]: Analyzing trace with hash 1356955877, now seen corresponding path program 1357 times [2021-06-05 03:50:16,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:16,614 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61240727] [2021-06-05 03:50:16,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:16,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:16,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:16,744 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:16,744 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61240727] [2021-06-05 03:50:16,745 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61240727] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:16,745 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:16,745 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:16,745 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2204792] [2021-06-05 03:50:16,745 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:16,745 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:16,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:16,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:16,745 INFO L87 Difference]: Start difference. First operand 5123 states and 24302 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:16,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:16,854 INFO L93 Difference]: Finished difference Result 11700 states and 52288 transitions. [2021-06-05 03:50:16,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:16,855 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:16,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:16,884 INFO L225 Difference]: With dead ends: 11700 [2021-06-05 03:50:16,884 INFO L226 Difference]: Without dead ends: 11158 [2021-06-05 03:50:16,885 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 138.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:17,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11158 states. [2021-06-05 03:50:17,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11158 to 5243. [2021-06-05 03:50:17,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5243 states, 5242 states have (on average 4.7298740938573065) internal successors, (24794), 5242 states have internal predecessors, (24794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:17,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5243 states to 5243 states and 24794 transitions. [2021-06-05 03:50:17,125 INFO L78 Accepts]: Start accepts. Automaton has 5243 states and 24794 transitions. Word has length 29 [2021-06-05 03:50:17,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:17,125 INFO L482 AbstractCegarLoop]: Abstraction has 5243 states and 24794 transitions. [2021-06-05 03:50:17,125 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:17,125 INFO L276 IsEmpty]: Start isEmpty. Operand 5243 states and 24794 transitions. [2021-06-05 03:50:17,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:17,134 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:17,134 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:17,134 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1361 [2021-06-05 03:50:17,134 INFO L430 AbstractCegarLoop]: === Iteration 1363 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:17,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:17,134 INFO L82 PathProgramCache]: Analyzing trace with hash -331290395, now seen corresponding path program 1358 times [2021-06-05 03:50:17,134 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:17,134 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828268140] [2021-06-05 03:50:17,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:17,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:17,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:17,265 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:17,265 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828268140] [2021-06-05 03:50:17,265 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828268140] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:17,265 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:17,265 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:17,265 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361507122] [2021-06-05 03:50:17,265 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:17,265 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:17,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:17,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:17,266 INFO L87 Difference]: Start difference. First operand 5243 states and 24794 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:17,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:17,362 INFO L93 Difference]: Finished difference Result 11573 states and 51681 transitions. [2021-06-05 03:50:17,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:17,362 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:17,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:17,390 INFO L225 Difference]: With dead ends: 11573 [2021-06-05 03:50:17,390 INFO L226 Difference]: Without dead ends: 11078 [2021-06-05 03:50:17,390 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 138.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:17,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11078 states. [2021-06-05 03:50:17,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11078 to 5163. [2021-06-05 03:50:17,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5163 states, 5162 states have (on average 4.739635800077489) internal successors, (24466), 5162 states have internal predecessors, (24466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:17,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5163 states to 5163 states and 24466 transitions. [2021-06-05 03:50:17,623 INFO L78 Accepts]: Start accepts. Automaton has 5163 states and 24466 transitions. Word has length 29 [2021-06-05 03:50:17,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:17,623 INFO L482 AbstractCegarLoop]: Abstraction has 5163 states and 24466 transitions. [2021-06-05 03:50:17,623 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:17,624 INFO L276 IsEmpty]: Start isEmpty. Operand 5163 states and 24466 transitions. [2021-06-05 03:50:17,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:17,632 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:17,632 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:17,632 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1362 [2021-06-05 03:50:17,632 INFO L430 AbstractCegarLoop]: === Iteration 1364 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:17,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:17,633 INFO L82 PathProgramCache]: Analyzing trace with hash -686007869, now seen corresponding path program 1359 times [2021-06-05 03:50:17,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:17,633 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658603402] [2021-06-05 03:50:17,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:17,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:17,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:17,768 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:17,769 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658603402] [2021-06-05 03:50:17,769 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658603402] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:17,769 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:17,769 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:17,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654114660] [2021-06-05 03:50:17,769 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:17,769 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:17,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:17,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:17,769 INFO L87 Difference]: Start difference. First operand 5163 states and 24466 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:17,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:17,864 INFO L93 Difference]: Finished difference Result 11549 states and 51669 transitions. [2021-06-05 03:50:17,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:17,864 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:17,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:17,891 INFO L225 Difference]: With dead ends: 11549 [2021-06-05 03:50:17,891 INFO L226 Difference]: Without dead ends: 11007 [2021-06-05 03:50:17,892 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 144.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:18,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11007 states. [2021-06-05 03:50:18,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11007 to 5267. [2021-06-05 03:50:18,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5267 states, 5266 states have (on average 4.719711355867831) internal successors, (24854), 5266 states have internal predecessors, (24854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:18,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5267 states to 5267 states and 24854 transitions. [2021-06-05 03:50:18,123 INFO L78 Accepts]: Start accepts. Automaton has 5267 states and 24854 transitions. Word has length 29 [2021-06-05 03:50:18,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:18,123 INFO L482 AbstractCegarLoop]: Abstraction has 5267 states and 24854 transitions. [2021-06-05 03:50:18,123 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:18,123 INFO L276 IsEmpty]: Start isEmpty. Operand 5267 states and 24854 transitions. [2021-06-05 03:50:18,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:18,132 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:18,132 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:18,133 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1363 [2021-06-05 03:50:18,133 INFO L430 AbstractCegarLoop]: === Iteration 1365 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:18,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:18,133 INFO L82 PathProgramCache]: Analyzing trace with hash -1521841947, now seen corresponding path program 1360 times [2021-06-05 03:50:18,133 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:18,133 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572881840] [2021-06-05 03:50:18,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:18,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:18,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:18,270 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:18,270 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572881840] [2021-06-05 03:50:18,270 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572881840] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:18,271 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:18,271 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:18,271 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66035052] [2021-06-05 03:50:18,271 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:18,271 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:18,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:18,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:18,271 INFO L87 Difference]: Start difference. First operand 5267 states and 24854 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:18,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:18,385 INFO L93 Difference]: Finished difference Result 11150 states and 50077 transitions. [2021-06-05 03:50:18,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:18,386 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:18,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:18,413 INFO L225 Difference]: With dead ends: 11150 [2021-06-05 03:50:18,413 INFO L226 Difference]: Without dead ends: 10583 [2021-06-05 03:50:18,413 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 162.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:18,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10583 states. [2021-06-05 03:50:18,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10583 to 5163. [2021-06-05 03:50:18,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5163 states, 5162 states have (on average 4.731886865555986) internal successors, (24426), 5162 states have internal predecessors, (24426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:18,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5163 states to 5163 states and 24426 transitions. [2021-06-05 03:50:18,646 INFO L78 Accepts]: Start accepts. Automaton has 5163 states and 24426 transitions. Word has length 29 [2021-06-05 03:50:18,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:18,646 INFO L482 AbstractCegarLoop]: Abstraction has 5163 states and 24426 transitions. [2021-06-05 03:50:18,646 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:18,646 INFO L276 IsEmpty]: Start isEmpty. Operand 5163 states and 24426 transitions. [2021-06-05 03:50:18,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:18,654 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:18,654 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:18,654 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1364 [2021-06-05 03:50:18,654 INFO L430 AbstractCegarLoop]: === Iteration 1366 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:18,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:18,655 INFO L82 PathProgramCache]: Analyzing trace with hash -1347346203, now seen corresponding path program 1361 times [2021-06-05 03:50:18,655 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:18,655 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322899525] [2021-06-05 03:50:18,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:18,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:18,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:18,779 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:18,779 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322899525] [2021-06-05 03:50:18,779 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322899525] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:18,779 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:18,779 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:18,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388226811] [2021-06-05 03:50:18,779 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:18,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:18,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:18,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:18,780 INFO L87 Difference]: Start difference. First operand 5163 states and 24426 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:18,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:18,874 INFO L93 Difference]: Finished difference Result 11366 states and 50834 transitions. [2021-06-05 03:50:18,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:18,875 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:18,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:18,901 INFO L225 Difference]: With dead ends: 11366 [2021-06-05 03:50:18,902 INFO L226 Difference]: Without dead ends: 10951 [2021-06-05 03:50:18,902 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 132.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:19,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10951 states. [2021-06-05 03:50:19,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10951 to 5211. [2021-06-05 03:50:19,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5211 states, 5210 states have (on average 4.722072936660268) internal successors, (24602), 5210 states have internal predecessors, (24602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:19,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5211 states to 5211 states and 24602 transitions. [2021-06-05 03:50:19,135 INFO L78 Accepts]: Start accepts. Automaton has 5211 states and 24602 transitions. Word has length 29 [2021-06-05 03:50:19,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:19,135 INFO L482 AbstractCegarLoop]: Abstraction has 5211 states and 24602 transitions. [2021-06-05 03:50:19,135 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:19,135 INFO L276 IsEmpty]: Start isEmpty. Operand 5211 states and 24602 transitions. [2021-06-05 03:50:19,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:19,144 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:19,144 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:19,144 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1365 [2021-06-05 03:50:19,144 INFO L430 AbstractCegarLoop]: === Iteration 1367 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:19,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:19,145 INFO L82 PathProgramCache]: Analyzing trace with hash -437741245, now seen corresponding path program 1362 times [2021-06-05 03:50:19,145 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:19,145 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969848656] [2021-06-05 03:50:19,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:19,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:19,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:19,269 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:19,269 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969848656] [2021-06-05 03:50:19,269 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969848656] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:19,269 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:19,269 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:19,269 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402869032] [2021-06-05 03:50:19,269 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:19,269 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:19,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:19,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:19,269 INFO L87 Difference]: Start difference. First operand 5211 states and 24602 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:19,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:19,393 INFO L93 Difference]: Finished difference Result 11094 states and 49825 transitions. [2021-06-05 03:50:19,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:19,393 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:19,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:19,419 INFO L225 Difference]: With dead ends: 11094 [2021-06-05 03:50:19,420 INFO L226 Difference]: Without dead ends: 10543 [2021-06-05 03:50:19,420 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 149.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:19,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10543 states. [2021-06-05 03:50:19,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10543 to 5123. [2021-06-05 03:50:19,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5123 states, 5122 states have (on average 4.740726278797345) internal successors, (24282), 5122 states have internal predecessors, (24282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:19,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5123 states to 5123 states and 24282 transitions. [2021-06-05 03:50:19,645 INFO L78 Accepts]: Start accepts. Automaton has 5123 states and 24282 transitions. Word has length 29 [2021-06-05 03:50:19,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:19,645 INFO L482 AbstractCegarLoop]: Abstraction has 5123 states and 24282 transitions. [2021-06-05 03:50:19,646 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:19,646 INFO L276 IsEmpty]: Start isEmpty. Operand 5123 states and 24282 transitions. [2021-06-05 03:50:19,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:19,654 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:19,654 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:19,654 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1366 [2021-06-05 03:50:19,654 INFO L430 AbstractCegarLoop]: === Iteration 1368 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:19,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:19,654 INFO L82 PathProgramCache]: Analyzing trace with hash 1436476615, now seen corresponding path program 1363 times [2021-06-05 03:50:19,654 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:19,655 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766926169] [2021-06-05 03:50:19,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:19,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:19,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:19,785 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:19,785 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766926169] [2021-06-05 03:50:19,785 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766926169] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:19,785 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:19,785 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:19,785 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216231321] [2021-06-05 03:50:19,785 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:19,785 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:19,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:19,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:19,785 INFO L87 Difference]: Start difference. First operand 5123 states and 24282 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:19,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:19,904 INFO L93 Difference]: Finished difference Result 11425 states and 51126 transitions. [2021-06-05 03:50:19,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:19,904 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:19,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:19,931 INFO L225 Difference]: With dead ends: 11425 [2021-06-05 03:50:19,931 INFO L226 Difference]: Without dead ends: 10948 [2021-06-05 03:50:19,931 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 155.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:20,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10948 states. [2021-06-05 03:50:20,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10948 to 5195. [2021-06-05 03:50:20,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5195 states, 5194 states have (on average 4.732768579129765) internal successors, (24582), 5194 states have internal predecessors, (24582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:20,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5195 states to 5195 states and 24582 transitions. [2021-06-05 03:50:20,159 INFO L78 Accepts]: Start accepts. Automaton has 5195 states and 24582 transitions. Word has length 29 [2021-06-05 03:50:20,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:20,159 INFO L482 AbstractCegarLoop]: Abstraction has 5195 states and 24582 transitions. [2021-06-05 03:50:20,159 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:20,159 INFO L276 IsEmpty]: Start isEmpty. Operand 5195 states and 24582 transitions. [2021-06-05 03:50:20,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:20,168 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:20,168 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:20,168 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1367 [2021-06-05 03:50:20,168 INFO L430 AbstractCegarLoop]: === Iteration 1369 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:20,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:20,168 INFO L82 PathProgramCache]: Analyzing trace with hash 589679653, now seen corresponding path program 1364 times [2021-06-05 03:50:20,168 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:20,168 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909466897] [2021-06-05 03:50:20,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:20,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:20,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:20,298 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:20,298 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909466897] [2021-06-05 03:50:20,298 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909466897] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:20,298 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:20,298 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:20,298 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796398203] [2021-06-05 03:50:20,299 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:20,299 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:20,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:20,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:20,299 INFO L87 Difference]: Start difference. First operand 5195 states and 24582 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:20,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:20,399 INFO L93 Difference]: Finished difference Result 11363 states and 50809 transitions. [2021-06-05 03:50:20,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:20,399 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:20,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:20,428 INFO L225 Difference]: With dead ends: 11363 [2021-06-05 03:50:20,428 INFO L226 Difference]: Without dead ends: 10900 [2021-06-05 03:50:20,428 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 138.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:20,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10900 states. [2021-06-05 03:50:20,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10900 to 5147. [2021-06-05 03:50:20,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5147 states, 5146 states have (on average 4.7380489700738435) internal successors, (24382), 5146 states have internal predecessors, (24382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:20,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5147 states to 5147 states and 24382 transitions. [2021-06-05 03:50:20,664 INFO L78 Accepts]: Start accepts. Automaton has 5147 states and 24382 transitions. Word has length 29 [2021-06-05 03:50:20,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:20,664 INFO L482 AbstractCegarLoop]: Abstraction has 5147 states and 24382 transitions. [2021-06-05 03:50:20,664 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:20,664 INFO L276 IsEmpty]: Start isEmpty. Operand 5147 states and 24382 transitions. [2021-06-05 03:50:20,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:20,673 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:20,673 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:20,673 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1368 [2021-06-05 03:50:20,673 INFO L430 AbstractCegarLoop]: === Iteration 1370 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:20,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:20,673 INFO L82 PathProgramCache]: Analyzing trace with hash -606487131, now seen corresponding path program 1365 times [2021-06-05 03:50:20,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:20,673 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478593699] [2021-06-05 03:50:20,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:20,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:20,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:20,805 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:20,805 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478593699] [2021-06-05 03:50:20,805 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478593699] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:20,805 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:20,805 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:20,805 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515186565] [2021-06-05 03:50:20,805 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:20,805 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:20,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:20,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:20,805 INFO L87 Difference]: Start difference. First operand 5147 states and 24382 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:20,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:20,922 INFO L93 Difference]: Finished difference Result 11339 states and 50781 transitions. [2021-06-05 03:50:20,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:20,922 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:20,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:20,949 INFO L225 Difference]: With dead ends: 11339 [2021-06-05 03:50:20,949 INFO L226 Difference]: Without dead ends: 10862 [2021-06-05 03:50:20,950 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 156.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:21,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10862 states. [2021-06-05 03:50:21,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10862 to 5219. [2021-06-05 03:50:21,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5219 states, 5218 states have (on average 4.725565350709084) internal successors, (24658), 5218 states have internal predecessors, (24658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:21,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5219 states to 5219 states and 24658 transitions. [2021-06-05 03:50:21,184 INFO L78 Accepts]: Start accepts. Automaton has 5219 states and 24658 transitions. Word has length 29 [2021-06-05 03:50:21,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:21,184 INFO L482 AbstractCegarLoop]: Abstraction has 5219 states and 24658 transitions. [2021-06-05 03:50:21,184 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:21,184 INFO L276 IsEmpty]: Start isEmpty. Operand 5219 states and 24658 transitions. [2021-06-05 03:50:21,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:21,193 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:21,193 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:21,193 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1369 [2021-06-05 03:50:21,193 INFO L430 AbstractCegarLoop]: === Iteration 1371 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:21,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:21,193 INFO L82 PathProgramCache]: Analyzing trace with hash -1032227419, now seen corresponding path program 1366 times [2021-06-05 03:50:21,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:21,193 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541530244] [2021-06-05 03:50:21,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:21,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:21,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:21,325 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:21,325 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541530244] [2021-06-05 03:50:21,325 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541530244] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:21,325 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:21,325 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:21,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799797654] [2021-06-05 03:50:21,325 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:21,325 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:21,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:21,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:21,325 INFO L87 Difference]: Start difference. First operand 5219 states and 24658 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:21,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:21,466 INFO L93 Difference]: Finished difference Result 11005 states and 49479 transitions. [2021-06-05 03:50:21,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:21,466 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:21,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:21,493 INFO L225 Difference]: With dead ends: 11005 [2021-06-05 03:50:21,493 INFO L226 Difference]: Without dead ends: 10470 [2021-06-05 03:50:21,493 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 188.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:21,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10470 states. [2021-06-05 03:50:21,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10470 to 5147. [2021-06-05 03:50:21,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5147 states, 5146 states have (on average 4.733385153517295) internal successors, (24358), 5146 states have internal predecessors, (24358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:21,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5147 states to 5147 states and 24358 transitions. [2021-06-05 03:50:21,719 INFO L78 Accepts]: Start accepts. Automaton has 5147 states and 24358 transitions. Word has length 29 [2021-06-05 03:50:21,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:21,719 INFO L482 AbstractCegarLoop]: Abstraction has 5147 states and 24358 transitions. [2021-06-05 03:50:21,719 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:21,719 INFO L276 IsEmpty]: Start isEmpty. Operand 5147 states and 24358 transitions. [2021-06-05 03:50:21,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:21,728 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:21,728 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:21,728 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1370 [2021-06-05 03:50:21,728 INFO L430 AbstractCegarLoop]: === Iteration 1372 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:21,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:21,729 INFO L82 PathProgramCache]: Analyzing trace with hash -1463235197, now seen corresponding path program 1367 times [2021-06-05 03:50:21,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:21,729 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681081603] [2021-06-05 03:50:21,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:21,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:21,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:21,849 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:21,849 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681081603] [2021-06-05 03:50:21,849 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681081603] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:21,849 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:21,849 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:21,849 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979495382] [2021-06-05 03:50:21,850 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:21,850 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:21,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:21,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:21,850 INFO L87 Difference]: Start difference. First operand 5147 states and 24358 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:21,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:21,943 INFO L93 Difference]: Finished difference Result 11253 states and 50364 transitions. [2021-06-05 03:50:21,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:21,943 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:21,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:21,970 INFO L225 Difference]: With dead ends: 11253 [2021-06-05 03:50:21,970 INFO L226 Difference]: Without dead ends: 10838 [2021-06-05 03:50:21,970 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:22,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10838 states. [2021-06-05 03:50:22,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10838 to 5195. [2021-06-05 03:50:22,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5195 states, 5194 states have (on average 4.72352714670774) internal successors, (24534), 5194 states have internal predecessors, (24534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:22,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5195 states to 5195 states and 24534 transitions. [2021-06-05 03:50:22,202 INFO L78 Accepts]: Start accepts. Automaton has 5195 states and 24534 transitions. Word has length 29 [2021-06-05 03:50:22,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:22,202 INFO L482 AbstractCegarLoop]: Abstraction has 5195 states and 24534 transitions. [2021-06-05 03:50:22,202 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:22,202 INFO L276 IsEmpty]: Start isEmpty. Operand 5195 states and 24534 transitions. [2021-06-05 03:50:22,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:22,211 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:22,211 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:22,211 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1371 [2021-06-05 03:50:22,211 INFO L430 AbstractCegarLoop]: === Iteration 1373 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:22,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:22,212 INFO L82 PathProgramCache]: Analyzing trace with hash 964714725, now seen corresponding path program 1368 times [2021-06-05 03:50:22,212 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:22,212 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128704543] [2021-06-05 03:50:22,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:22,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:22,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:22,331 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:22,331 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128704543] [2021-06-05 03:50:22,331 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128704543] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:22,331 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:22,331 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:22,331 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850576336] [2021-06-05 03:50:22,332 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:22,332 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:22,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:22,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:22,332 INFO L87 Difference]: Start difference. First operand 5195 states and 24534 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:22,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:22,455 INFO L93 Difference]: Finished difference Result 10981 states and 49355 transitions. [2021-06-05 03:50:22,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:22,455 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:22,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:22,481 INFO L225 Difference]: With dead ends: 10981 [2021-06-05 03:50:22,481 INFO L226 Difference]: Without dead ends: 10418 [2021-06-05 03:50:22,481 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 143.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:22,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10418 states. [2021-06-05 03:50:22,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10418 to 5095. [2021-06-05 03:50:22,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5095 states, 5094 states have (on average 4.749901845308206) internal successors, (24196), 5094 states have internal predecessors, (24196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:22,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5095 states to 5095 states and 24196 transitions. [2021-06-05 03:50:22,707 INFO L78 Accepts]: Start accepts. Automaton has 5095 states and 24196 transitions. Word has length 29 [2021-06-05 03:50:22,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:22,707 INFO L482 AbstractCegarLoop]: Abstraction has 5095 states and 24196 transitions. [2021-06-05 03:50:22,707 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:22,707 INFO L276 IsEmpty]: Start isEmpty. Operand 5095 states and 24196 transitions. [2021-06-05 03:50:22,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:22,716 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:22,716 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:22,716 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1372 [2021-06-05 03:50:22,716 INFO L430 AbstractCegarLoop]: === Iteration 1374 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:22,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:22,716 INFO L82 PathProgramCache]: Analyzing trace with hash -1630685083, now seen corresponding path program 1369 times [2021-06-05 03:50:22,716 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:22,716 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628021487] [2021-06-05 03:50:22,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:22,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:22,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:22,822 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:22,822 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628021487] [2021-06-05 03:50:22,822 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628021487] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:22,822 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:22,823 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:22,823 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406520472] [2021-06-05 03:50:22,823 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:22,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:22,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:22,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:22,823 INFO L87 Difference]: Start difference. First operand 5095 states and 24196 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:22,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:22,924 INFO L93 Difference]: Finished difference Result 12307 states and 55046 transitions. [2021-06-05 03:50:22,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:22,925 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:22,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:22,955 INFO L225 Difference]: With dead ends: 12307 [2021-06-05 03:50:22,955 INFO L226 Difference]: Without dead ends: 11765 [2021-06-05 03:50:22,955 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 114.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:23,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11765 states. [2021-06-05 03:50:23,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11765 to 5367. [2021-06-05 03:50:23,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5367 states, 5366 states have (on average 4.719530376444279) internal successors, (25325), 5366 states have internal predecessors, (25325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:23,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5367 states to 5367 states and 25325 transitions. [2021-06-05 03:50:23,196 INFO L78 Accepts]: Start accepts. Automaton has 5367 states and 25325 transitions. Word has length 29 [2021-06-05 03:50:23,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:23,196 INFO L482 AbstractCegarLoop]: Abstraction has 5367 states and 25325 transitions. [2021-06-05 03:50:23,196 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:23,197 INFO L276 IsEmpty]: Start isEmpty. Operand 5367 states and 25325 transitions. [2021-06-05 03:50:23,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:23,205 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:23,205 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:23,206 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1373 [2021-06-05 03:50:23,206 INFO L430 AbstractCegarLoop]: === Iteration 1375 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:23,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:23,206 INFO L82 PathProgramCache]: Analyzing trace with hash -549622457, now seen corresponding path program 1370 times [2021-06-05 03:50:23,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:23,206 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435262353] [2021-06-05 03:50:23,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:23,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:23,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:23,313 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:23,313 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435262353] [2021-06-05 03:50:23,313 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435262353] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:23,313 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:23,313 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:23,313 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079905245] [2021-06-05 03:50:23,313 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:23,313 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:23,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:23,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:23,313 INFO L87 Difference]: Start difference. First operand 5367 states and 25325 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:23,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:23,433 INFO L93 Difference]: Finished difference Result 12242 states and 54677 transitions. [2021-06-05 03:50:23,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:23,433 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:23,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:23,461 INFO L225 Difference]: With dead ends: 12242 [2021-06-05 03:50:23,462 INFO L226 Difference]: Without dead ends: 11622 [2021-06-05 03:50:23,462 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 131.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:23,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11622 states. [2021-06-05 03:50:23,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11622 to 5224. [2021-06-05 03:50:23,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5224 states, 5223 states have (on average 4.735784032165422) internal successors, (24735), 5223 states have internal predecessors, (24735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:23,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5224 states to 5224 states and 24735 transitions. [2021-06-05 03:50:23,705 INFO L78 Accepts]: Start accepts. Automaton has 5224 states and 24735 transitions. Word has length 29 [2021-06-05 03:50:23,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:23,705 INFO L482 AbstractCegarLoop]: Abstraction has 5224 states and 24735 transitions. [2021-06-05 03:50:23,705 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:23,705 INFO L276 IsEmpty]: Start isEmpty. Operand 5224 states and 24735 transitions. [2021-06-05 03:50:23,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:23,714 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:23,714 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:23,714 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1374 [2021-06-05 03:50:23,714 INFO L430 AbstractCegarLoop]: === Iteration 1376 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:23,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:23,714 INFO L82 PathProgramCache]: Analyzing trace with hash -537714587, now seen corresponding path program 1371 times [2021-06-05 03:50:23,714 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:23,714 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980876153] [2021-06-05 03:50:23,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:23,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:23,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:23,823 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:23,824 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980876153] [2021-06-05 03:50:23,824 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980876153] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:23,824 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:23,824 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:23,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551870557] [2021-06-05 03:50:23,824 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:23,824 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:23,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:23,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:23,824 INFO L87 Difference]: Start difference. First operand 5224 states and 24735 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:23,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:23,930 INFO L93 Difference]: Finished difference Result 12272 states and 54855 transitions. [2021-06-05 03:50:23,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:23,931 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:23,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:23,960 INFO L225 Difference]: With dead ends: 12272 [2021-06-05 03:50:23,960 INFO L226 Difference]: Without dead ends: 11730 [2021-06-05 03:50:23,960 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 113.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:24,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11730 states. [2021-06-05 03:50:24,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11730 to 5334. [2021-06-05 03:50:24,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5334 states, 5333 states have (on average 4.714044627789237) internal successors, (25140), 5333 states have internal predecessors, (25140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:24,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5334 states to 5334 states and 25140 transitions. [2021-06-05 03:50:24,206 INFO L78 Accepts]: Start accepts. Automaton has 5334 states and 25140 transitions. Word has length 29 [2021-06-05 03:50:24,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:24,206 INFO L482 AbstractCegarLoop]: Abstraction has 5334 states and 25140 transitions. [2021-06-05 03:50:24,206 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:24,206 INFO L276 IsEmpty]: Start isEmpty. Operand 5334 states and 25140 transitions. [2021-06-05 03:50:24,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:24,215 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:24,215 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:24,215 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1375 [2021-06-05 03:50:24,215 INFO L430 AbstractCegarLoop]: === Iteration 1377 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:24,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:24,215 INFO L82 PathProgramCache]: Analyzing trace with hash -488146843, now seen corresponding path program 1372 times [2021-06-05 03:50:24,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:24,215 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251834960] [2021-06-05 03:50:24,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:24,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:24,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:24,321 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:24,321 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251834960] [2021-06-05 03:50:24,321 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251834960] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:24,321 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:24,321 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:24,321 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057100734] [2021-06-05 03:50:24,321 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:24,321 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:24,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:24,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:24,322 INFO L87 Difference]: Start difference. First operand 5334 states and 25140 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:24,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:24,436 INFO L93 Difference]: Finished difference Result 12205 states and 54482 transitions. [2021-06-05 03:50:24,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:24,437 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:24,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:24,466 INFO L225 Difference]: With dead ends: 12205 [2021-06-05 03:50:24,466 INFO L226 Difference]: Without dead ends: 11620 [2021-06-05 03:50:24,466 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 131.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:24,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11620 states. [2021-06-05 03:50:24,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11620 to 5224. [2021-06-05 03:50:24,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5224 states, 5223 states have (on average 4.725253685621291) internal successors, (24680), 5223 states have internal predecessors, (24680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:24,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5224 states to 5224 states and 24680 transitions. [2021-06-05 03:50:24,704 INFO L78 Accepts]: Start accepts. Automaton has 5224 states and 24680 transitions. Word has length 29 [2021-06-05 03:50:24,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:24,704 INFO L482 AbstractCegarLoop]: Abstraction has 5224 states and 24680 transitions. [2021-06-05 03:50:24,704 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:24,704 INFO L276 IsEmpty]: Start isEmpty. Operand 5224 states and 24680 transitions. [2021-06-05 03:50:24,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:24,713 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:24,713 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:24,713 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1376 [2021-06-05 03:50:24,713 INFO L430 AbstractCegarLoop]: === Iteration 1378 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:24,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:24,713 INFO L82 PathProgramCache]: Analyzing trace with hash -149709625, now seen corresponding path program 1373 times [2021-06-05 03:50:24,713 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:24,713 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001531385] [2021-06-05 03:50:24,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:24,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:24,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:24,821 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:24,821 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001531385] [2021-06-05 03:50:24,821 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001531385] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:24,821 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:24,821 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:24,821 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729516583] [2021-06-05 03:50:24,821 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:24,821 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:24,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:24,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:24,822 INFO L87 Difference]: Start difference. First operand 5224 states and 24680 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:24,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:24,941 INFO L93 Difference]: Finished difference Result 12110 states and 54140 transitions. [2021-06-05 03:50:24,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:24,941 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:24,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:24,969 INFO L225 Difference]: With dead ends: 12110 [2021-06-05 03:50:24,969 INFO L226 Difference]: Without dead ends: 11633 [2021-06-05 03:50:24,969 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 132.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:25,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11633 states. [2021-06-05 03:50:25,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11633 to 5302. [2021-06-05 03:50:25,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5301 states have (on average 4.710997924919827) internal successors, (24973), 5301 states have internal predecessors, (24973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:25,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 24973 transitions. [2021-06-05 03:50:25,209 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 24973 transitions. Word has length 29 [2021-06-05 03:50:25,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:25,209 INFO L482 AbstractCegarLoop]: Abstraction has 5302 states and 24973 transitions. [2021-06-05 03:50:25,209 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:25,209 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 24973 transitions. [2021-06-05 03:50:25,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:25,218 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:25,218 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:25,218 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1377 [2021-06-05 03:50:25,218 INFO L430 AbstractCegarLoop]: === Iteration 1379 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:25,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:25,218 INFO L82 PathProgramCache]: Analyzing trace with hash 2029178021, now seen corresponding path program 1374 times [2021-06-05 03:50:25,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:25,218 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267696101] [2021-06-05 03:50:25,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:25,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:25,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:25,324 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:25,324 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267696101] [2021-06-05 03:50:25,324 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267696101] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:25,324 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:25,324 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:25,324 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694452066] [2021-06-05 03:50:25,325 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:25,325 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:25,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:25,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:25,325 INFO L87 Difference]: Start difference. First operand 5302 states and 24973 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:25,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:25,452 INFO L93 Difference]: Finished difference Result 12108 states and 54057 transitions. [2021-06-05 03:50:25,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:25,452 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:25,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:25,482 INFO L225 Difference]: With dead ends: 12108 [2021-06-05 03:50:25,482 INFO L226 Difference]: Without dead ends: 11468 [2021-06-05 03:50:25,482 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 131.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:25,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11468 states. [2021-06-05 03:50:25,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11468 to 5137. [2021-06-05 03:50:25,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5137 states, 5136 states have (on average 4.744353582554517) internal successors, (24367), 5136 states have internal predecessors, (24367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:25,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5137 states to 5137 states and 24367 transitions. [2021-06-05 03:50:25,714 INFO L78 Accepts]: Start accepts. Automaton has 5137 states and 24367 transitions. Word has length 29 [2021-06-05 03:50:25,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:25,714 INFO L482 AbstractCegarLoop]: Abstraction has 5137 states and 24367 transitions. [2021-06-05 03:50:25,714 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:25,714 INFO L276 IsEmpty]: Start isEmpty. Operand 5137 states and 24367 transitions. [2021-06-05 03:50:25,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:25,723 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:25,723 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:25,723 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1378 [2021-06-05 03:50:25,723 INFO L430 AbstractCegarLoop]: === Iteration 1380 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:25,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:25,723 INFO L82 PathProgramCache]: Analyzing trace with hash -1145714365, now seen corresponding path program 1375 times [2021-06-05 03:50:25,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:25,723 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161087458] [2021-06-05 03:50:25,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:25,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:25,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:25,839 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:25,839 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161087458] [2021-06-05 03:50:25,839 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161087458] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:25,839 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:25,839 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:25,839 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840102764] [2021-06-05 03:50:25,840 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:25,840 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:25,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:25,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:25,840 INFO L87 Difference]: Start difference. First operand 5137 states and 24367 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:25,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:25,953 INFO L93 Difference]: Finished difference Result 12121 states and 54227 transitions. [2021-06-05 03:50:25,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:25,953 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:25,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:25,982 INFO L225 Difference]: With dead ends: 12121 [2021-06-05 03:50:25,982 INFO L226 Difference]: Without dead ends: 11579 [2021-06-05 03:50:25,982 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 123.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:26,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11579 states. [2021-06-05 03:50:26,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11579 to 5348. [2021-06-05 03:50:26,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5348 states, 5347 states have (on average 4.717037591172621) internal successors, (25222), 5347 states have internal predecessors, (25222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:26,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5348 states to 5348 states and 25222 transitions. [2021-06-05 03:50:26,224 INFO L78 Accepts]: Start accepts. Automaton has 5348 states and 25222 transitions. Word has length 29 [2021-06-05 03:50:26,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:26,224 INFO L482 AbstractCegarLoop]: Abstraction has 5348 states and 25222 transitions. [2021-06-05 03:50:26,224 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:26,225 INFO L276 IsEmpty]: Start isEmpty. Operand 5348 states and 25222 transitions. [2021-06-05 03:50:26,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:26,233 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:26,233 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:26,233 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1379 [2021-06-05 03:50:26,234 INFO L430 AbstractCegarLoop]: === Iteration 1381 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:26,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:26,234 INFO L82 PathProgramCache]: Analyzing trace with hash -64651739, now seen corresponding path program 1376 times [2021-06-05 03:50:26,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:26,234 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721075800] [2021-06-05 03:50:26,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:26,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:26,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:26,350 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:26,350 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721075800] [2021-06-05 03:50:26,350 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721075800] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:26,350 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:26,350 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:26,350 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978646763] [2021-06-05 03:50:26,350 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:26,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:26,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:26,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:26,351 INFO L87 Difference]: Start difference. First operand 5348 states and 25222 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:26,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:26,463 INFO L93 Difference]: Finished difference Result 12056 states and 53858 transitions. [2021-06-05 03:50:26,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:26,463 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:26,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:26,491 INFO L225 Difference]: With dead ends: 12056 [2021-06-05 03:50:26,491 INFO L226 Difference]: Without dead ends: 11436 [2021-06-05 03:50:26,491 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 141.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:26,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11436 states. [2021-06-05 03:50:26,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11436 to 5205. [2021-06-05 03:50:26,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5205 states, 5204 states have (on average 4.733858570330515) internal successors, (24635), 5204 states have internal predecessors, (24635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:26,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5205 states to 5205 states and 24635 transitions. [2021-06-05 03:50:26,725 INFO L78 Accepts]: Start accepts. Automaton has 5205 states and 24635 transitions. Word has length 29 [2021-06-05 03:50:26,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:26,725 INFO L482 AbstractCegarLoop]: Abstraction has 5205 states and 24635 transitions. [2021-06-05 03:50:26,725 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:26,725 INFO L276 IsEmpty]: Start isEmpty. Operand 5205 states and 24635 transitions. [2021-06-05 03:50:26,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:26,734 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:26,734 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:26,734 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1380 [2021-06-05 03:50:26,734 INFO L430 AbstractCegarLoop]: === Iteration 1382 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:26,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:26,734 INFO L82 PathProgramCache]: Analyzing trace with hash -211885979, now seen corresponding path program 1377 times [2021-06-05 03:50:26,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:26,734 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177721217] [2021-06-05 03:50:26,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:26,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:26,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:26,861 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:26,861 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177721217] [2021-06-05 03:50:26,861 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177721217] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:26,861 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:26,861 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:26,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121639444] [2021-06-05 03:50:26,861 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:26,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:26,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:26,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:26,862 INFO L87 Difference]: Start difference. First operand 5205 states and 24635 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:26,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:26,960 INFO L93 Difference]: Finished difference Result 11845 states and 53049 transitions. [2021-06-05 03:50:26,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:26,960 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:26,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:26,988 INFO L225 Difference]: With dead ends: 11845 [2021-06-05 03:50:26,988 INFO L226 Difference]: Without dead ends: 11303 [2021-06-05 03:50:26,988 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 135.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:27,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11303 states. [2021-06-05 03:50:27,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11303 to 5309. [2021-06-05 03:50:27,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5309 states, 5308 states have (on average 4.714204973624717) internal successors, (25023), 5308 states have internal predecessors, (25023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:27,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5309 states to 5309 states and 25023 transitions. [2021-06-05 03:50:27,224 INFO L78 Accepts]: Start accepts. Automaton has 5309 states and 25023 transitions. Word has length 29 [2021-06-05 03:50:27,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:27,224 INFO L482 AbstractCegarLoop]: Abstraction has 5309 states and 25023 transitions. [2021-06-05 03:50:27,224 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:27,224 INFO L276 IsEmpty]: Start isEmpty. Operand 5309 states and 25023 transitions. [2021-06-05 03:50:27,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:27,233 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:27,233 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:27,233 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1381 [2021-06-05 03:50:27,233 INFO L430 AbstractCegarLoop]: === Iteration 1383 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:27,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:27,233 INFO L82 PathProgramCache]: Analyzing trace with hash -981657499, now seen corresponding path program 1378 times [2021-06-05 03:50:27,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:27,234 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805038372] [2021-06-05 03:50:27,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:27,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:27,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:27,360 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:27,360 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805038372] [2021-06-05 03:50:27,360 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805038372] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:27,360 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:27,360 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:27,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706593010] [2021-06-05 03:50:27,360 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:27,360 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:27,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:27,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:27,360 INFO L87 Difference]: Start difference. First operand 5309 states and 25023 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:27,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:27,471 INFO L93 Difference]: Finished difference Result 11446 states and 51457 transitions. [2021-06-05 03:50:27,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:27,471 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:27,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:27,498 INFO L225 Difference]: With dead ends: 11446 [2021-06-05 03:50:27,498 INFO L226 Difference]: Without dead ends: 10879 [2021-06-05 03:50:27,498 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 150.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:27,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10879 states. [2021-06-05 03:50:27,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10879 to 5205. [2021-06-05 03:50:27,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5205 states, 5204 states have (on average 4.723866256725596) internal successors, (24583), 5204 states have internal predecessors, (24583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:27,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5205 states to 5205 states and 24583 transitions. [2021-06-05 03:50:27,726 INFO L78 Accepts]: Start accepts. Automaton has 5205 states and 24583 transitions. Word has length 29 [2021-06-05 03:50:27,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:27,726 INFO L482 AbstractCegarLoop]: Abstraction has 5205 states and 24583 transitions. [2021-06-05 03:50:27,726 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:27,726 INFO L276 IsEmpty]: Start isEmpty. Operand 5205 states and 24583 transitions. [2021-06-05 03:50:27,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:27,735 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:27,735 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:27,735 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1382 [2021-06-05 03:50:27,735 INFO L430 AbstractCegarLoop]: === Iteration 1384 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:27,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:27,735 INFO L82 PathProgramCache]: Analyzing trace with hash 176118983, now seen corresponding path program 1379 times [2021-06-05 03:50:27,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:27,735 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185465653] [2021-06-05 03:50:27,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:27,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:27,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:27,861 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:27,861 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185465653] [2021-06-05 03:50:27,861 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185465653] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:27,861 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:27,861 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:27,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195053457] [2021-06-05 03:50:27,861 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:27,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:27,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:27,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:27,861 INFO L87 Difference]: Start difference. First operand 5205 states and 24583 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:27,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:27,973 INFO L93 Difference]: Finished difference Result 11748 states and 52595 transitions. [2021-06-05 03:50:27,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:27,973 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:27,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:28,000 INFO L225 Difference]: With dead ends: 11748 [2021-06-05 03:50:28,001 INFO L226 Difference]: Without dead ends: 11271 [2021-06-05 03:50:28,001 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 151.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:28,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11271 states. [2021-06-05 03:50:28,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11271 to 5277. [2021-06-05 03:50:28,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5277 states, 5276 states have (on average 4.711713419257013) internal successors, (24859), 5276 states have internal predecessors, (24859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:28,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5277 states to 5277 states and 24859 transitions. [2021-06-05 03:50:28,234 INFO L78 Accepts]: Start accepts. Automaton has 5277 states and 24859 transitions. Word has length 29 [2021-06-05 03:50:28,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:28,234 INFO L482 AbstractCegarLoop]: Abstraction has 5277 states and 24859 transitions. [2021-06-05 03:50:28,234 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:28,234 INFO L276 IsEmpty]: Start isEmpty. Operand 5277 states and 24859 transitions. [2021-06-05 03:50:28,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:28,243 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:28,243 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:28,243 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1383 [2021-06-05 03:50:28,243 INFO L430 AbstractCegarLoop]: === Iteration 1385 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:28,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:28,243 INFO L82 PathProgramCache]: Analyzing trace with hash -183558747, now seen corresponding path program 1380 times [2021-06-05 03:50:28,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:28,243 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127012488] [2021-06-05 03:50:28,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:28,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:28,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:28,370 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:28,370 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127012488] [2021-06-05 03:50:28,370 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127012488] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:28,370 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:28,370 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:28,370 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259597951] [2021-06-05 03:50:28,371 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:28,371 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:28,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:28,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:28,371 INFO L87 Difference]: Start difference. First operand 5277 states and 24859 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:28,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:28,493 INFO L93 Difference]: Finished difference Result 11414 states and 51293 transitions. [2021-06-05 03:50:28,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:28,493 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:28,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:28,520 INFO L225 Difference]: With dead ends: 11414 [2021-06-05 03:50:28,520 INFO L226 Difference]: Without dead ends: 10811 [2021-06-05 03:50:28,521 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 152.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:28,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10811 states. [2021-06-05 03:50:28,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10811 to 5137. [2021-06-05 03:50:28,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5137 states, 5136 states have (on average 4.737733644859813) internal successors, (24333), 5136 states have internal predecessors, (24333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:28,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5137 states to 5137 states and 24333 transitions. [2021-06-05 03:50:28,749 INFO L78 Accepts]: Start accepts. Automaton has 5137 states and 24333 transitions. Word has length 29 [2021-06-05 03:50:28,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:28,749 INFO L482 AbstractCegarLoop]: Abstraction has 5137 states and 24333 transitions. [2021-06-05 03:50:28,749 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:28,749 INFO L276 IsEmpty]: Start isEmpty. Operand 5137 states and 24333 transitions. [2021-06-05 03:50:28,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:28,758 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:28,758 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:28,758 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1384 [2021-06-05 03:50:28,758 INFO L430 AbstractCegarLoop]: === Iteration 1386 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:28,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:28,758 INFO L82 PathProgramCache]: Analyzing trace with hash -728209307, now seen corresponding path program 1381 times [2021-06-05 03:50:28,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:28,758 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743644080] [2021-06-05 03:50:28,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:28,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:28,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:28,865 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:28,866 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743644080] [2021-06-05 03:50:28,866 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743644080] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:28,866 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:28,866 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:28,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848447402] [2021-06-05 03:50:28,866 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:28,866 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:28,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:28,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:28,866 INFO L87 Difference]: Start difference. First operand 5137 states and 24333 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:28,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:28,969 INFO L93 Difference]: Finished difference Result 12068 states and 54004 transitions. [2021-06-05 03:50:28,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:28,969 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:28,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:28,998 INFO L225 Difference]: With dead ends: 12068 [2021-06-05 03:50:28,998 INFO L226 Difference]: Without dead ends: 11526 [2021-06-05 03:50:28,998 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 115.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:29,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11526 states. [2021-06-05 03:50:29,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11526 to 5299. [2021-06-05 03:50:29,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5299 states, 5298 states have (on average 4.720649301623254) internal successors, (25010), 5298 states have internal predecessors, (25010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:29,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5299 states to 5299 states and 25010 transitions. [2021-06-05 03:50:29,240 INFO L78 Accepts]: Start accepts. Automaton has 5299 states and 25010 transitions. Word has length 29 [2021-06-05 03:50:29,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:29,240 INFO L482 AbstractCegarLoop]: Abstraction has 5299 states and 25010 transitions. [2021-06-05 03:50:29,240 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:29,240 INFO L276 IsEmpty]: Start isEmpty. Operand 5299 states and 25010 transitions. [2021-06-05 03:50:29,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:29,249 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:29,249 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:29,249 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1385 [2021-06-05 03:50:29,249 INFO L430 AbstractCegarLoop]: === Iteration 1387 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:29,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:29,250 INFO L82 PathProgramCache]: Analyzing trace with hash -678641563, now seen corresponding path program 1382 times [2021-06-05 03:50:29,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:29,250 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181682526] [2021-06-05 03:50:29,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:29,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:29,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:29,356 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:29,356 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181682526] [2021-06-05 03:50:29,356 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181682526] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:29,356 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:29,356 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:29,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719546186] [2021-06-05 03:50:29,356 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:29,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:29,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:29,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:29,357 INFO L87 Difference]: Start difference. First operand 5299 states and 25010 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:29,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:29,472 INFO L93 Difference]: Finished difference Result 12001 states and 53631 transitions. [2021-06-05 03:50:29,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:29,473 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:29,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:29,502 INFO L225 Difference]: With dead ends: 12001 [2021-06-05 03:50:29,502 INFO L226 Difference]: Without dead ends: 11416 [2021-06-05 03:50:29,502 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 132.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:29,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11416 states. [2021-06-05 03:50:29,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11416 to 5189. [2021-06-05 03:50:29,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5189 states, 5188 states have (on average 4.732652274479568) internal successors, (24553), 5188 states have internal predecessors, (24553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:29,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5189 states to 5189 states and 24553 transitions. [2021-06-05 03:50:29,739 INFO L78 Accepts]: Start accepts. Automaton has 5189 states and 24553 transitions. Word has length 29 [2021-06-05 03:50:29,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:29,740 INFO L482 AbstractCegarLoop]: Abstraction has 5189 states and 24553 transitions. [2021-06-05 03:50:29,740 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:29,740 INFO L276 IsEmpty]: Start isEmpty. Operand 5189 states and 24553 transitions. [2021-06-05 03:50:29,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:29,749 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:29,749 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:29,749 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1386 [2021-06-05 03:50:29,749 INFO L430 AbstractCegarLoop]: === Iteration 1388 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:29,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:29,749 INFO L82 PathProgramCache]: Analyzing trace with hash 1533745347, now seen corresponding path program 1383 times [2021-06-05 03:50:29,749 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:29,749 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48930014] [2021-06-05 03:50:29,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:29,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:29,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:29,866 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:29,866 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48930014] [2021-06-05 03:50:29,866 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48930014] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:29,866 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:29,866 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:29,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040372305] [2021-06-05 03:50:29,867 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:29,867 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:29,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:29,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:29,867 INFO L87 Difference]: Start difference. First operand 5189 states and 24553 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:29,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:29,967 INFO L93 Difference]: Finished difference Result 11827 states and 52962 transitions. [2021-06-05 03:50:29,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:29,967 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:29,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:29,995 INFO L225 Difference]: With dead ends: 11827 [2021-06-05 03:50:29,995 INFO L226 Difference]: Without dead ends: 11285 [2021-06-05 03:50:29,995 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 125.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:30,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11285 states. [2021-06-05 03:50:30,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11285 to 5293. [2021-06-05 03:50:30,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5293 states, 5292 states have (on average 4.712962962962963) internal successors, (24941), 5292 states have internal predecessors, (24941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:30,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5293 states to 5293 states and 24941 transitions. [2021-06-05 03:50:30,232 INFO L78 Accepts]: Start accepts. Automaton has 5293 states and 24941 transitions. Word has length 29 [2021-06-05 03:50:30,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:30,232 INFO L482 AbstractCegarLoop]: Abstraction has 5293 states and 24941 transitions. [2021-06-05 03:50:30,232 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:30,232 INFO L276 IsEmpty]: Start isEmpty. Operand 5293 states and 24941 transitions. [2021-06-05 03:50:30,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:30,241 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:30,241 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:30,241 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1387 [2021-06-05 03:50:30,241 INFO L430 AbstractCegarLoop]: === Iteration 1389 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:30,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:30,242 INFO L82 PathProgramCache]: Analyzing trace with hash 1390968933, now seen corresponding path program 1384 times [2021-06-05 03:50:30,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:30,242 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516220775] [2021-06-05 03:50:30,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:30,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:30,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:30,358 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:30,358 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516220775] [2021-06-05 03:50:30,358 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516220775] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:30,358 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:30,358 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:30,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942881363] [2021-06-05 03:50:30,358 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:30,358 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:30,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:30,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:30,358 INFO L87 Difference]: Start difference. First operand 5293 states and 24941 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:30,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:30,474 INFO L93 Difference]: Finished difference Result 11428 states and 51370 transitions. [2021-06-05 03:50:30,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:30,474 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:30,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:30,501 INFO L225 Difference]: With dead ends: 11428 [2021-06-05 03:50:30,501 INFO L226 Difference]: Without dead ends: 10861 [2021-06-05 03:50:30,501 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 141.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:30,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10861 states. [2021-06-05 03:50:30,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10861 to 5189. [2021-06-05 03:50:30,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5189 states, 5188 states have (on average 4.722629144178875) internal successors, (24501), 5188 states have internal predecessors, (24501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:30,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5189 states to 5189 states and 24501 transitions. [2021-06-05 03:50:30,785 INFO L78 Accepts]: Start accepts. Automaton has 5189 states and 24501 transitions. Word has length 29 [2021-06-05 03:50:30,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:30,785 INFO L482 AbstractCegarLoop]: Abstraction has 5189 states and 24501 transitions. [2021-06-05 03:50:30,785 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:30,785 INFO L276 IsEmpty]: Start isEmpty. Operand 5189 states and 24501 transitions. [2021-06-05 03:50:30,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:30,793 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:30,793 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:30,794 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1388 [2021-06-05 03:50:30,794 INFO L430 AbstractCegarLoop]: === Iteration 1390 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:30,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:30,794 INFO L82 PathProgramCache]: Analyzing trace with hash -1694697371, now seen corresponding path program 1385 times [2021-06-05 03:50:30,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:30,794 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987729641] [2021-06-05 03:50:30,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:30,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:30,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:30,895 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:30,895 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987729641] [2021-06-05 03:50:30,895 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987729641] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:30,895 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:30,895 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:30,895 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267944932] [2021-06-05 03:50:30,895 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:30,896 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:30,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:30,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:30,896 INFO L87 Difference]: Start difference. First operand 5189 states and 24501 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:31,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:31,014 INFO L93 Difference]: Finished difference Result 11728 states and 52503 transitions. [2021-06-05 03:50:31,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:31,014 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:31,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:31,042 INFO L225 Difference]: With dead ends: 11728 [2021-06-05 03:50:31,042 INFO L226 Difference]: Without dead ends: 11253 [2021-06-05 03:50:31,043 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 125.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:31,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11253 states. [2021-06-05 03:50:31,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11253 to 5261. [2021-06-05 03:50:31,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5261 states, 5260 states have (on average 4.710456273764258) internal successors, (24777), 5260 states have internal predecessors, (24777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:31,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5261 states to 5261 states and 24777 transitions. [2021-06-05 03:50:31,280 INFO L78 Accepts]: Start accepts. Automaton has 5261 states and 24777 transitions. Word has length 29 [2021-06-05 03:50:31,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:31,280 INFO L482 AbstractCegarLoop]: Abstraction has 5261 states and 24777 transitions. [2021-06-05 03:50:31,280 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:31,280 INFO L276 IsEmpty]: Start isEmpty. Operand 5261 states and 24777 transitions. [2021-06-05 03:50:31,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:31,289 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:31,289 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:31,289 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1389 [2021-06-05 03:50:31,289 INFO L430 AbstractCegarLoop]: === Iteration 1391 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:31,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:31,290 INFO L82 PathProgramCache]: Analyzing trace with hash 484190275, now seen corresponding path program 1386 times [2021-06-05 03:50:31,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:31,290 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419873382] [2021-06-05 03:50:31,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:31,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:31,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:31,393 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:31,393 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419873382] [2021-06-05 03:50:31,393 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419873382] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:31,393 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:31,393 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:31,393 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508283423] [2021-06-05 03:50:31,393 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:31,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:31,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:31,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:31,394 INFO L87 Difference]: Start difference. First operand 5261 states and 24777 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:31,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:31,518 INFO L93 Difference]: Finished difference Result 11396 states and 51206 transitions. [2021-06-05 03:50:31,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:31,519 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:31,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:31,546 INFO L225 Difference]: With dead ends: 11396 [2021-06-05 03:50:31,546 INFO L226 Difference]: Without dead ends: 10809 [2021-06-05 03:50:31,546 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 130.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:31,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10809 states. [2021-06-05 03:50:31,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10809 to 5137. [2021-06-05 03:50:31,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5137 states, 5136 states have (on average 4.732671339563863) internal successors, (24307), 5136 states have internal predecessors, (24307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:31,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5137 states to 5137 states and 24307 transitions. [2021-06-05 03:50:31,776 INFO L78 Accepts]: Start accepts. Automaton has 5137 states and 24307 transitions. Word has length 29 [2021-06-05 03:50:31,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:31,777 INFO L482 AbstractCegarLoop]: Abstraction has 5137 states and 24307 transitions. [2021-06-05 03:50:31,777 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:31,777 INFO L276 IsEmpty]: Start isEmpty. Operand 5137 states and 24307 transitions. [2021-06-05 03:50:31,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:31,785 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:31,785 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:31,785 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1390 [2021-06-05 03:50:31,785 INFO L430 AbstractCegarLoop]: === Iteration 1392 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:31,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:31,785 INFO L82 PathProgramCache]: Analyzing trace with hash -648688569, now seen corresponding path program 1387 times [2021-06-05 03:50:31,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:31,786 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898214104] [2021-06-05 03:50:31,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:31,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:31,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:31,889 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:31,889 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898214104] [2021-06-05 03:50:31,889 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898214104] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:31,890 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:31,890 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:31,890 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237834619] [2021-06-05 03:50:31,890 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:31,890 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:31,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:31,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:31,890 INFO L87 Difference]: Start difference. First operand 5137 states and 24307 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:32,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:32,009 INFO L93 Difference]: Finished difference Result 11793 states and 52836 transitions. [2021-06-05 03:50:32,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:32,010 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:32,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:32,038 INFO L225 Difference]: With dead ends: 11793 [2021-06-05 03:50:32,038 INFO L226 Difference]: Without dead ends: 11316 [2021-06-05 03:50:32,038 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 129.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:32,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11316 states. [2021-06-05 03:50:32,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11316 to 5251. [2021-06-05 03:50:32,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5251 states, 5250 states have (on average 4.722285714285714) internal successors, (24792), 5250 states have internal predecessors, (24792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:32,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5251 states to 5251 states and 24792 transitions. [2021-06-05 03:50:32,280 INFO L78 Accepts]: Start accepts. Automaton has 5251 states and 24792 transitions. Word has length 29 [2021-06-05 03:50:32,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:32,280 INFO L482 AbstractCegarLoop]: Abstraction has 5251 states and 24792 transitions. [2021-06-05 03:50:32,280 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:32,280 INFO L276 IsEmpty]: Start isEmpty. Operand 5251 states and 24792 transitions. [2021-06-05 03:50:32,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:32,289 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:32,289 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:32,289 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1391 [2021-06-05 03:50:32,289 INFO L430 AbstractCegarLoop]: === Iteration 1393 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:32,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:32,289 INFO L82 PathProgramCache]: Analyzing trace with hash 1530199077, now seen corresponding path program 1388 times [2021-06-05 03:50:32,289 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:32,289 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796455686] [2021-06-05 03:50:32,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:32,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:32,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:32,394 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:32,394 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796455686] [2021-06-05 03:50:32,394 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796455686] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:32,394 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:32,394 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:32,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667005510] [2021-06-05 03:50:32,394 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:32,394 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:32,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:32,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:32,394 INFO L87 Difference]: Start difference. First operand 5251 states and 24792 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:32,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:32,512 INFO L93 Difference]: Finished difference Result 11791 states and 52753 transitions. [2021-06-05 03:50:32,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:32,513 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:32,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:32,542 INFO L225 Difference]: With dead ends: 11791 [2021-06-05 03:50:32,542 INFO L226 Difference]: Without dead ends: 11238 [2021-06-05 03:50:32,543 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 129.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:32,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11238 states. [2021-06-05 03:50:32,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11238 to 5173. [2021-06-05 03:50:32,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5173 states, 5172 states have (on average 4.729891724671307) internal successors, (24463), 5172 states have internal predecessors, (24463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:32,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5173 states to 5173 states and 24463 transitions. [2021-06-05 03:50:32,782 INFO L78 Accepts]: Start accepts. Automaton has 5173 states and 24463 transitions. Word has length 29 [2021-06-05 03:50:32,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:32,783 INFO L482 AbstractCegarLoop]: Abstraction has 5173 states and 24463 transitions. [2021-06-05 03:50:32,783 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:32,783 INFO L276 IsEmpty]: Start isEmpty. Operand 5173 states and 24463 transitions. [2021-06-05 03:50:32,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:32,792 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:32,792 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:32,792 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1392 [2021-06-05 03:50:32,792 INFO L430 AbstractCegarLoop]: === Iteration 1394 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:32,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:32,792 INFO L82 PathProgramCache]: Analyzing trace with hash 1613266085, now seen corresponding path program 1389 times [2021-06-05 03:50:32,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:32,792 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327033600] [2021-06-05 03:50:32,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:32,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:32,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:32,909 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:32,909 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327033600] [2021-06-05 03:50:32,909 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327033600] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:32,909 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:32,909 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:32,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615145418] [2021-06-05 03:50:32,909 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:32,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:32,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:32,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:32,909 INFO L87 Difference]: Start difference. First operand 5173 states and 24463 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:33,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:33,024 INFO L93 Difference]: Finished difference Result 11617 states and 52068 transitions. [2021-06-05 03:50:33,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:33,024 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:33,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:33,052 INFO L225 Difference]: With dead ends: 11617 [2021-06-05 03:50:33,052 INFO L226 Difference]: Without dead ends: 11140 [2021-06-05 03:50:33,053 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 141.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:33,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11140 states. [2021-06-05 03:50:33,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11140 to 5245. [2021-06-05 03:50:33,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5245 states, 5244 states have (on average 4.717581998474447) internal successors, (24739), 5244 states have internal predecessors, (24739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:33,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5245 states to 5245 states and 24739 transitions. [2021-06-05 03:50:33,291 INFO L78 Accepts]: Start accepts. Automaton has 5245 states and 24739 transitions. Word has length 29 [2021-06-05 03:50:33,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:33,291 INFO L482 AbstractCegarLoop]: Abstraction has 5245 states and 24739 transitions. [2021-06-05 03:50:33,291 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:33,291 INFO L276 IsEmpty]: Start isEmpty. Operand 5245 states and 24739 transitions. [2021-06-05 03:50:33,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:33,300 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:33,300 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:33,300 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1393 [2021-06-05 03:50:33,300 INFO L430 AbstractCegarLoop]: === Iteration 1395 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:33,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:33,301 INFO L82 PathProgramCache]: Analyzing trace with hash 1880583461, now seen corresponding path program 1390 times [2021-06-05 03:50:33,301 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:33,301 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040557573] [2021-06-05 03:50:33,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:33,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:33,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:33,417 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:33,417 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040557573] [2021-06-05 03:50:33,417 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040557573] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:33,417 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:33,417 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:33,417 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117032129] [2021-06-05 03:50:33,417 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:33,417 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:33,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:33,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:33,417 INFO L87 Difference]: Start difference. First operand 5245 states and 24739 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:33,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:33,537 INFO L93 Difference]: Finished difference Result 11283 states and 50766 transitions. [2021-06-05 03:50:33,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:33,537 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:33,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:33,565 INFO L225 Difference]: With dead ends: 11283 [2021-06-05 03:50:33,566 INFO L226 Difference]: Without dead ends: 10748 [2021-06-05 03:50:33,566 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 141.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:33,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10748 states. [2021-06-05 03:50:33,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10748 to 5173. [2021-06-05 03:50:33,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5173 states, 5172 states have (on average 4.72293116782676) internal successors, (24427), 5172 states have internal predecessors, (24427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:33,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5173 states to 5173 states and 24427 transitions. [2021-06-05 03:50:33,803 INFO L78 Accepts]: Start accepts. Automaton has 5173 states and 24427 transitions. Word has length 29 [2021-06-05 03:50:33,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:33,803 INFO L482 AbstractCegarLoop]: Abstraction has 5173 states and 24427 transitions. [2021-06-05 03:50:33,803 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:33,803 INFO L276 IsEmpty]: Start isEmpty. Operand 5173 states and 24427 transitions. [2021-06-05 03:50:33,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:33,811 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:33,812 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:33,812 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1394 [2021-06-05 03:50:33,812 INFO L430 AbstractCegarLoop]: === Iteration 1396 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:33,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:33,812 INFO L82 PathProgramCache]: Analyzing trace with hash -522715773, now seen corresponding path program 1391 times [2021-06-05 03:50:33,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:33,812 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316587511] [2021-06-05 03:50:33,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:33,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:33,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:33,917 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:33,917 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316587511] [2021-06-05 03:50:33,917 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316587511] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:33,917 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:33,917 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:33,918 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137624958] [2021-06-05 03:50:33,918 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:33,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:33,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:33,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:33,918 INFO L87 Difference]: Start difference. First operand 5173 states and 24427 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:34,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:34,034 INFO L93 Difference]: Finished difference Result 11615 states and 52027 transitions. [2021-06-05 03:50:34,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:34,034 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:34,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:34,062 INFO L225 Difference]: With dead ends: 11615 [2021-06-05 03:50:34,062 INFO L226 Difference]: Without dead ends: 11140 [2021-06-05 03:50:34,062 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 131.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:34,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11140 states. [2021-06-05 03:50:34,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11140 to 5245. [2021-06-05 03:50:34,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5245 states, 5244 states have (on average 4.710717009916094) internal successors, (24703), 5244 states have internal predecessors, (24703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:34,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5245 states to 5245 states and 24703 transitions. [2021-06-05 03:50:34,301 INFO L78 Accepts]: Start accepts. Automaton has 5245 states and 24703 transitions. Word has length 29 [2021-06-05 03:50:34,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:34,301 INFO L482 AbstractCegarLoop]: Abstraction has 5245 states and 24703 transitions. [2021-06-05 03:50:34,301 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:34,301 INFO L276 IsEmpty]: Start isEmpty. Operand 5245 states and 24703 transitions. [2021-06-05 03:50:34,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:34,310 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:34,310 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:34,310 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1395 [2021-06-05 03:50:34,310 INFO L430 AbstractCegarLoop]: === Iteration 1397 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:34,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:34,310 INFO L82 PathProgramCache]: Analyzing trace with hash -1696675483, now seen corresponding path program 1392 times [2021-06-05 03:50:34,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:34,310 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025721350] [2021-06-05 03:50:34,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:34,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:34,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:34,414 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:34,414 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025721350] [2021-06-05 03:50:34,415 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025721350] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:34,415 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:34,415 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:34,415 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216472371] [2021-06-05 03:50:34,415 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:34,415 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:34,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:34,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:34,415 INFO L87 Difference]: Start difference. First operand 5245 states and 24703 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:34,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:34,545 INFO L93 Difference]: Finished difference Result 11283 states and 50730 transitions. [2021-06-05 03:50:34,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:34,545 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:34,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:34,573 INFO L225 Difference]: With dead ends: 11283 [2021-06-05 03:50:34,573 INFO L226 Difference]: Without dead ends: 10670 [2021-06-05 03:50:34,573 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 129.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:34,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10670 states. [2021-06-05 03:50:34,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10670 to 5095. [2021-06-05 03:50:34,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5095 states, 5094 states have (on average 4.746368276403612) internal successors, (24178), 5094 states have internal predecessors, (24178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:34,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5095 states to 5095 states and 24178 transitions. [2021-06-05 03:50:34,805 INFO L78 Accepts]: Start accepts. Automaton has 5095 states and 24178 transitions. Word has length 29 [2021-06-05 03:50:34,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:34,805 INFO L482 AbstractCegarLoop]: Abstraction has 5095 states and 24178 transitions. [2021-06-05 03:50:34,805 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:34,805 INFO L276 IsEmpty]: Start isEmpty. Operand 5095 states and 24178 transitions. [2021-06-05 03:50:34,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:34,814 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:34,814 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:34,814 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1396 [2021-06-05 03:50:34,814 INFO L430 AbstractCegarLoop]: === Iteration 1398 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:34,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:34,814 INFO L82 PathProgramCache]: Analyzing trace with hash 1774300103, now seen corresponding path program 1393 times [2021-06-05 03:50:34,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:34,815 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36221788] [2021-06-05 03:50:34,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:34,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:34,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:34,937 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:34,937 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36221788] [2021-06-05 03:50:34,937 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36221788] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:34,937 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:34,937 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:34,937 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503739461] [2021-06-05 03:50:34,937 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:34,937 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:34,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:34,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:34,937 INFO L87 Difference]: Start difference. First operand 5095 states and 24178 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:35,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:35,039 INFO L93 Difference]: Finished difference Result 11739 states and 52523 transitions. [2021-06-05 03:50:35,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:35,039 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:35,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:35,068 INFO L225 Difference]: With dead ends: 11739 [2021-06-05 03:50:35,068 INFO L226 Difference]: Without dead ends: 11197 [2021-06-05 03:50:35,068 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 130.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:35,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11197 states. [2021-06-05 03:50:35,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11197 to 5235. [2021-06-05 03:50:35,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5235 states, 5234 states have (on average 4.734810852120749) internal successors, (24782), 5234 states have internal predecessors, (24782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:35,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5235 states to 5235 states and 24782 transitions. [2021-06-05 03:50:35,306 INFO L78 Accepts]: Start accepts. Automaton has 5235 states and 24782 transitions. Word has length 29 [2021-06-05 03:50:35,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:35,306 INFO L482 AbstractCegarLoop]: Abstraction has 5235 states and 24782 transitions. [2021-06-05 03:50:35,306 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:35,306 INFO L276 IsEmpty]: Start isEmpty. Operand 5235 states and 24782 transitions. [2021-06-05 03:50:35,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:35,315 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:35,315 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:35,315 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1397 [2021-06-05 03:50:35,315 INFO L430 AbstractCegarLoop]: === Iteration 1399 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:35,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:35,316 INFO L82 PathProgramCache]: Analyzing trace with hash 86053831, now seen corresponding path program 1394 times [2021-06-05 03:50:35,316 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:35,316 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733185060] [2021-06-05 03:50:35,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:35,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:35,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:35,437 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:35,437 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733185060] [2021-06-05 03:50:35,437 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733185060] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:35,438 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:35,438 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:35,438 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645147522] [2021-06-05 03:50:35,438 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:35,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:35,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:35,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:35,438 INFO L87 Difference]: Start difference. First operand 5235 states and 24782 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:35,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:35,543 INFO L93 Difference]: Finished difference Result 11612 states and 51916 transitions. [2021-06-05 03:50:35,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:35,544 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:35,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:35,572 INFO L225 Difference]: With dead ends: 11612 [2021-06-05 03:50:35,573 INFO L226 Difference]: Without dead ends: 11117 [2021-06-05 03:50:35,573 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 130.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:35,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11117 states. [2021-06-05 03:50:35,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11117 to 5155. [2021-06-05 03:50:35,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5155 states, 5154 states have (on average 4.744664338377959) internal successors, (24454), 5154 states have internal predecessors, (24454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:35,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 24454 transitions. [2021-06-05 03:50:35,812 INFO L78 Accepts]: Start accepts. Automaton has 5155 states and 24454 transitions. Word has length 29 [2021-06-05 03:50:35,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:35,812 INFO L482 AbstractCegarLoop]: Abstraction has 5155 states and 24454 transitions. [2021-06-05 03:50:35,812 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:35,812 INFO L276 IsEmpty]: Start isEmpty. Operand 5155 states and 24454 transitions. [2021-06-05 03:50:35,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:35,821 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:35,821 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:35,821 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1398 [2021-06-05 03:50:35,821 INFO L430 AbstractCegarLoop]: === Iteration 1400 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:35,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:35,821 INFO L82 PathProgramCache]: Analyzing trace with hash -248761435, now seen corresponding path program 1395 times [2021-06-05 03:50:35,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:35,821 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690436259] [2021-06-05 03:50:35,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:35,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:35,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:35,933 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:35,933 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690436259] [2021-06-05 03:50:35,933 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690436259] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:35,933 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:35,933 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:35,934 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334039183] [2021-06-05 03:50:35,934 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:35,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:35,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:35,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:35,934 INFO L87 Difference]: Start difference. First operand 5155 states and 24454 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:36,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:36,046 INFO L93 Difference]: Finished difference Result 11829 states and 52894 transitions. [2021-06-05 03:50:36,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:36,046 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:36,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:36,076 INFO L225 Difference]: With dead ends: 11829 [2021-06-05 03:50:36,076 INFO L226 Difference]: Without dead ends: 11287 [2021-06-05 03:50:36,077 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 120.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:36,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11287 states. [2021-06-05 03:50:36,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11287 to 5265. [2021-06-05 03:50:36,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5265 states, 5264 states have (on average 4.7224544072948325) internal successors, (24859), 5264 states have internal predecessors, (24859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:36,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5265 states to 5265 states and 24859 transitions. [2021-06-05 03:50:36,323 INFO L78 Accepts]: Start accepts. Automaton has 5265 states and 24859 transitions. Word has length 29 [2021-06-05 03:50:36,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:36,323 INFO L482 AbstractCegarLoop]: Abstraction has 5265 states and 24859 transitions. [2021-06-05 03:50:36,323 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:36,323 INFO L276 IsEmpty]: Start isEmpty. Operand 5265 states and 24859 transitions. [2021-06-05 03:50:36,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:36,332 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:36,332 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:36,332 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1399 [2021-06-05 03:50:36,332 INFO L430 AbstractCegarLoop]: === Iteration 1401 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:36,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:36,333 INFO L82 PathProgramCache]: Analyzing trace with hash 1120859079, now seen corresponding path program 1396 times [2021-06-05 03:50:36,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:36,333 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108725429] [2021-06-05 03:50:36,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:36,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:36,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:36,446 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:36,446 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108725429] [2021-06-05 03:50:36,446 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108725429] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:36,446 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:36,446 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:36,446 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229668565] [2021-06-05 03:50:36,446 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:36,446 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:36,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:36,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:36,447 INFO L87 Difference]: Start difference. First operand 5265 states and 24859 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:36,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:36,577 INFO L93 Difference]: Finished difference Result 11762 states and 52521 transitions. [2021-06-05 03:50:36,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:36,578 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:36,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:36,606 INFO L225 Difference]: With dead ends: 11762 [2021-06-05 03:50:36,607 INFO L226 Difference]: Without dead ends: 11177 [2021-06-05 03:50:36,607 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 139.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:36,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11177 states. [2021-06-05 03:50:36,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11177 to 5155. [2021-06-05 03:50:36,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5155 states, 5154 states have (on average 4.736903376018626) internal successors, (24414), 5154 states have internal predecessors, (24414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:36,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 24414 transitions. [2021-06-05 03:50:36,846 INFO L78 Accepts]: Start accepts. Automaton has 5155 states and 24414 transitions. Word has length 29 [2021-06-05 03:50:36,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:36,846 INFO L482 AbstractCegarLoop]: Abstraction has 5155 states and 24414 transitions. [2021-06-05 03:50:36,846 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:36,846 INFO L276 IsEmpty]: Start isEmpty. Operand 5155 states and 24414 transitions. [2021-06-05 03:50:36,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:36,855 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:36,855 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:36,855 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1400 [2021-06-05 03:50:36,855 INFO L430 AbstractCegarLoop]: === Iteration 1402 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:36,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:36,855 INFO L82 PathProgramCache]: Analyzing trace with hash 476015559, now seen corresponding path program 1397 times [2021-06-05 03:50:36,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:36,855 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514184242] [2021-06-05 03:50:36,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:36,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:36,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:36,979 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:36,979 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514184242] [2021-06-05 03:50:36,979 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514184242] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:36,979 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:36,980 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:36,980 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199673605] [2021-06-05 03:50:36,980 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:36,980 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:36,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:36,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:36,980 INFO L87 Difference]: Start difference. First operand 5155 states and 24414 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:37,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:37,093 INFO L93 Difference]: Finished difference Result 11513 states and 51509 transitions. [2021-06-05 03:50:37,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:37,093 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:37,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:37,122 INFO L225 Difference]: With dead ends: 11513 [2021-06-05 03:50:37,122 INFO L226 Difference]: Without dead ends: 11098 [2021-06-05 03:50:37,122 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 132.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:37,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11098 states. [2021-06-05 03:50:37,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11098 to 5203. [2021-06-05 03:50:37,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5203 states, 5202 states have (on average 4.727028066128412) internal successors, (24590), 5202 states have internal predecessors, (24590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:37,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5203 states to 5203 states and 24590 transitions. [2021-06-05 03:50:37,356 INFO L78 Accepts]: Start accepts. Automaton has 5203 states and 24590 transitions. Word has length 29 [2021-06-05 03:50:37,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:37,357 INFO L482 AbstractCegarLoop]: Abstraction has 5203 states and 24590 transitions. [2021-06-05 03:50:37,357 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:37,357 INFO L276 IsEmpty]: Start isEmpty. Operand 5203 states and 24590 transitions. [2021-06-05 03:50:37,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:37,365 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:37,366 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:37,366 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1401 [2021-06-05 03:50:37,366 INFO L430 AbstractCegarLoop]: === Iteration 1403 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:37,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:37,366 INFO L82 PathProgramCache]: Analyzing trace with hash -370781403, now seen corresponding path program 1398 times [2021-06-05 03:50:37,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:37,366 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057600470] [2021-06-05 03:50:37,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:37,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:37,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:37,488 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:37,488 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057600470] [2021-06-05 03:50:37,488 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057600470] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:37,488 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:37,488 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:37,488 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265168126] [2021-06-05 03:50:37,488 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:37,488 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:37,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:37,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:37,488 INFO L87 Difference]: Start difference. First operand 5203 states and 24590 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:37,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:37,620 INFO L93 Difference]: Finished difference Result 11573 states and 51725 transitions. [2021-06-05 03:50:37,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:37,621 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:37,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:37,648 INFO L225 Difference]: With dead ends: 11573 [2021-06-05 03:50:37,648 INFO L226 Difference]: Without dead ends: 11010 [2021-06-05 03:50:37,649 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 147.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:37,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11010 states. [2021-06-05 03:50:37,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11010 to 5115. [2021-06-05 03:50:37,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5115 states, 5114 states have (on average 4.745795854517012) internal successors, (24270), 5114 states have internal predecessors, (24270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:37,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5115 states to 5115 states and 24270 transitions. [2021-06-05 03:50:37,881 INFO L78 Accepts]: Start accepts. Automaton has 5115 states and 24270 transitions. Word has length 29 [2021-06-05 03:50:37,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:37,881 INFO L482 AbstractCegarLoop]: Abstraction has 5115 states and 24270 transitions. [2021-06-05 03:50:37,881 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:37,881 INFO L276 IsEmpty]: Start isEmpty. Operand 5115 states and 24270 transitions. [2021-06-05 03:50:37,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:37,890 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:37,890 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:37,890 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1402 [2021-06-05 03:50:37,890 INFO L430 AbstractCegarLoop]: === Iteration 1404 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:37,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:37,890 INFO L82 PathProgramCache]: Analyzing trace with hash -2035696475, now seen corresponding path program 1399 times [2021-06-05 03:50:37,890 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:37,890 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635450931] [2021-06-05 03:50:37,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:37,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:38,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:38,011 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:38,011 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635450931] [2021-06-05 03:50:38,011 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635450931] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:38,011 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:38,011 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:38,011 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171633323] [2021-06-05 03:50:38,011 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:38,011 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:38,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:38,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:38,011 INFO L87 Difference]: Start difference. First operand 5115 states and 24270 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:38,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:38,126 INFO L93 Difference]: Finished difference Result 11641 states and 52072 transitions. [2021-06-05 03:50:38,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:38,127 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:38,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:38,155 INFO L225 Difference]: With dead ends: 11641 [2021-06-05 03:50:38,156 INFO L226 Difference]: Without dead ends: 11099 [2021-06-05 03:50:38,156 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:38,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11099 states. [2021-06-05 03:50:38,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11099 to 5235. [2021-06-05 03:50:38,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5235 states, 5234 states have (on average 4.73098968284295) internal successors, (24762), 5234 states have internal predecessors, (24762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:38,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5235 states to 5235 states and 24762 transitions. [2021-06-05 03:50:38,387 INFO L78 Accepts]: Start accepts. Automaton has 5235 states and 24762 transitions. Word has length 29 [2021-06-05 03:50:38,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:38,387 INFO L482 AbstractCegarLoop]: Abstraction has 5235 states and 24762 transitions. [2021-06-05 03:50:38,387 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:38,387 INFO L276 IsEmpty]: Start isEmpty. Operand 5235 states and 24762 transitions. [2021-06-05 03:50:38,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:38,395 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:38,396 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:38,396 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1403 [2021-06-05 03:50:38,396 INFO L430 AbstractCegarLoop]: === Iteration 1405 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:38,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:38,396 INFO L82 PathProgramCache]: Analyzing trace with hash 571024549, now seen corresponding path program 1400 times [2021-06-05 03:50:38,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:38,396 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542017651] [2021-06-05 03:50:38,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:38,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:38,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:38,518 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:38,518 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542017651] [2021-06-05 03:50:38,518 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542017651] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:38,518 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:38,518 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:38,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240392355] [2021-06-05 03:50:38,518 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:38,518 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:38,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:38,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:38,519 INFO L87 Difference]: Start difference. First operand 5235 states and 24762 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:38,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:38,612 INFO L93 Difference]: Finished difference Result 11514 states and 51465 transitions. [2021-06-05 03:50:38,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:38,612 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:38,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:38,639 INFO L225 Difference]: With dead ends: 11514 [2021-06-05 03:50:38,639 INFO L226 Difference]: Without dead ends: 11019 [2021-06-05 03:50:38,639 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 130.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:38,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11019 states. [2021-06-05 03:50:38,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11019 to 5155. [2021-06-05 03:50:38,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5155 states, 5154 states have (on average 4.740783857198292) internal successors, (24434), 5154 states have internal predecessors, (24434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:38,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 24434 transitions. [2021-06-05 03:50:38,872 INFO L78 Accepts]: Start accepts. Automaton has 5155 states and 24434 transitions. Word has length 29 [2021-06-05 03:50:38,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:38,872 INFO L482 AbstractCegarLoop]: Abstraction has 5155 states and 24434 transitions. [2021-06-05 03:50:38,872 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:38,872 INFO L276 IsEmpty]: Start isEmpty. Operand 5155 states and 24434 transitions. [2021-06-05 03:50:38,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:38,881 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:38,881 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:38,881 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1404 [2021-06-05 03:50:38,881 INFO L430 AbstractCegarLoop]: === Iteration 1406 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:38,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:38,881 INFO L82 PathProgramCache]: Analyzing trace with hash 1463182501, now seen corresponding path program 1401 times [2021-06-05 03:50:38,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:38,881 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120402784] [2021-06-05 03:50:38,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:38,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:39,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:39,010 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:39,010 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120402784] [2021-06-05 03:50:39,010 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120402784] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:39,010 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:39,010 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:39,010 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609994870] [2021-06-05 03:50:39,010 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:39,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:39,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:39,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:39,011 INFO L87 Difference]: Start difference. First operand 5155 states and 24434 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:39,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:39,108 INFO L93 Difference]: Finished difference Result 11490 states and 51453 transitions. [2021-06-05 03:50:39,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:39,109 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:39,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:39,136 INFO L225 Difference]: With dead ends: 11490 [2021-06-05 03:50:39,136 INFO L226 Difference]: Without dead ends: 10948 [2021-06-05 03:50:39,137 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 137.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:39,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10948 states. [2021-06-05 03:50:39,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10948 to 5259. [2021-06-05 03:50:39,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5259 states, 5258 states have (on average 4.7208063902624575) internal successors, (24822), 5258 states have internal predecessors, (24822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:39,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5259 states to 5259 states and 24822 transitions. [2021-06-05 03:50:39,370 INFO L78 Accepts]: Start accepts. Automaton has 5259 states and 24822 transitions. Word has length 29 [2021-06-05 03:50:39,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:39,370 INFO L482 AbstractCegarLoop]: Abstraction has 5259 states and 24822 transitions. [2021-06-05 03:50:39,370 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:39,370 INFO L276 IsEmpty]: Start isEmpty. Operand 5259 states and 24822 transitions. [2021-06-05 03:50:39,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:39,379 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:39,379 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:39,379 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1405 [2021-06-05 03:50:39,379 INFO L430 AbstractCegarLoop]: === Iteration 1407 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:39,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:39,379 INFO L82 PathProgramCache]: Analyzing trace with hash 627348423, now seen corresponding path program 1402 times [2021-06-05 03:50:39,379 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:39,379 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845088198] [2021-06-05 03:50:39,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:39,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:39,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:39,501 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:39,501 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845088198] [2021-06-05 03:50:39,501 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845088198] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:39,501 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:39,501 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:39,501 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114392843] [2021-06-05 03:50:39,501 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:39,501 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:39,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:39,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:39,501 INFO L87 Difference]: Start difference. First operand 5259 states and 24822 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:39,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:39,612 INFO L93 Difference]: Finished difference Result 11091 states and 49861 transitions. [2021-06-05 03:50:39,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:39,612 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:39,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:39,637 INFO L225 Difference]: With dead ends: 11091 [2021-06-05 03:50:39,638 INFO L226 Difference]: Without dead ends: 10524 [2021-06-05 03:50:39,638 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 147.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:39,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10524 states. [2021-06-05 03:50:39,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10524 to 5155. [2021-06-05 03:50:39,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5155 states, 5154 states have (on average 4.73302289483896) internal successors, (24394), 5154 states have internal predecessors, (24394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:39,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 24394 transitions. [2021-06-05 03:50:39,863 INFO L78 Accepts]: Start accepts. Automaton has 5155 states and 24394 transitions. Word has length 29 [2021-06-05 03:50:39,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:39,863 INFO L482 AbstractCegarLoop]: Abstraction has 5155 states and 24394 transitions. [2021-06-05 03:50:39,863 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:39,863 INFO L276 IsEmpty]: Start isEmpty. Operand 5155 states and 24394 transitions. [2021-06-05 03:50:39,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:39,871 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:39,871 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:39,871 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1406 [2021-06-05 03:50:39,871 INFO L430 AbstractCegarLoop]: === Iteration 1408 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:39,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:39,871 INFO L82 PathProgramCache]: Analyzing trace with hash 801844167, now seen corresponding path program 1403 times [2021-06-05 03:50:39,871 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:39,871 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622483920] [2021-06-05 03:50:39,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:39,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:39,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:39,986 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:39,986 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622483920] [2021-06-05 03:50:39,986 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622483920] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:39,986 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:39,986 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:39,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546854640] [2021-06-05 03:50:39,986 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:39,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:39,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:39,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:39,986 INFO L87 Difference]: Start difference. First operand 5155 states and 24394 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:40,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:40,128 INFO L93 Difference]: Finished difference Result 11307 states and 50618 transitions. [2021-06-05 03:50:40,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:40,129 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:40,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:40,158 INFO L225 Difference]: With dead ends: 11307 [2021-06-05 03:50:40,158 INFO L226 Difference]: Without dead ends: 10892 [2021-06-05 03:50:40,158 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 122.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:40,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10892 states. [2021-06-05 03:50:40,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10892 to 5203. [2021-06-05 03:50:40,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5203 states, 5202 states have (on average 4.72318339100346) internal successors, (24570), 5202 states have internal predecessors, (24570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:40,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5203 states to 5203 states and 24570 transitions. [2021-06-05 03:50:40,381 INFO L78 Accepts]: Start accepts. Automaton has 5203 states and 24570 transitions. Word has length 29 [2021-06-05 03:50:40,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:40,381 INFO L482 AbstractCegarLoop]: Abstraction has 5203 states and 24570 transitions. [2021-06-05 03:50:40,381 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:40,381 INFO L276 IsEmpty]: Start isEmpty. Operand 5203 states and 24570 transitions. [2021-06-05 03:50:40,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:40,390 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:40,390 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:40,390 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1407 [2021-06-05 03:50:40,390 INFO L430 AbstractCegarLoop]: === Iteration 1409 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:40,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:40,390 INFO L82 PathProgramCache]: Analyzing trace with hash 1711449125, now seen corresponding path program 1404 times [2021-06-05 03:50:40,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:40,390 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997970249] [2021-06-05 03:50:40,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:40,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:40,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:40,501 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:40,501 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997970249] [2021-06-05 03:50:40,501 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997970249] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:40,501 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:40,501 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:40,501 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158561328] [2021-06-05 03:50:40,501 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:40,501 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:40,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:40,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:40,501 INFO L87 Difference]: Start difference. First operand 5203 states and 24570 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:40,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:40,612 INFO L93 Difference]: Finished difference Result 11035 states and 49609 transitions. [2021-06-05 03:50:40,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:40,612 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:40,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:40,638 INFO L225 Difference]: With dead ends: 11035 [2021-06-05 03:50:40,638 INFO L226 Difference]: Without dead ends: 10484 [2021-06-05 03:50:40,638 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 135.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:40,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10484 states. [2021-06-05 03:50:40,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10484 to 5115. [2021-06-05 03:50:40,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5115 states, 5114 states have (on average 4.741885021509582) internal successors, (24250), 5114 states have internal predecessors, (24250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:40,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5115 states to 5115 states and 24250 transitions. [2021-06-05 03:50:40,861 INFO L78 Accepts]: Start accepts. Automaton has 5115 states and 24250 transitions. Word has length 29 [2021-06-05 03:50:40,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:40,861 INFO L482 AbstractCegarLoop]: Abstraction has 5115 states and 24250 transitions. [2021-06-05 03:50:40,861 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:40,861 INFO L276 IsEmpty]: Start isEmpty. Operand 5115 states and 24250 transitions. [2021-06-05 03:50:40,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:40,869 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:40,869 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:40,869 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1408 [2021-06-05 03:50:40,869 INFO L430 AbstractCegarLoop]: === Iteration 1410 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:40,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:40,870 INFO L82 PathProgramCache]: Analyzing trace with hash -736867069, now seen corresponding path program 1405 times [2021-06-05 03:50:40,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:40,870 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740384040] [2021-06-05 03:50:40,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:40,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:40,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:40,974 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:40,974 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740384040] [2021-06-05 03:50:40,975 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740384040] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:40,975 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:40,975 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:40,975 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045139465] [2021-06-05 03:50:40,975 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:40,975 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:40,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:40,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:40,975 INFO L87 Difference]: Start difference. First operand 5115 states and 24250 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:41,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:41,076 INFO L93 Difference]: Finished difference Result 11827 states and 52919 transitions. [2021-06-05 03:50:41,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:41,076 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:41,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:41,104 INFO L225 Difference]: With dead ends: 11827 [2021-06-05 03:50:41,104 INFO L226 Difference]: Without dead ends: 11285 [2021-06-05 03:50:41,104 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 113.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:41,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11285 states. [2021-06-05 03:50:41,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11285 to 5277. [2021-06-05 03:50:41,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5277 states, 5276 states have (on average 4.724601971190296) internal successors, (24927), 5276 states have internal predecessors, (24927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:41,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5277 states to 5277 states and 24927 transitions. [2021-06-05 03:50:41,341 INFO L78 Accepts]: Start accepts. Automaton has 5277 states and 24927 transitions. Word has length 29 [2021-06-05 03:50:41,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:41,341 INFO L482 AbstractCegarLoop]: Abstraction has 5277 states and 24927 transitions. [2021-06-05 03:50:41,341 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:41,341 INFO L276 IsEmpty]: Start isEmpty. Operand 5277 states and 24927 transitions. [2021-06-05 03:50:41,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:41,349 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:41,350 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:41,350 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1409 [2021-06-05 03:50:41,350 INFO L430 AbstractCegarLoop]: === Iteration 1411 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:41,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:41,350 INFO L82 PathProgramCache]: Analyzing trace with hash 632753445, now seen corresponding path program 1406 times [2021-06-05 03:50:41,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:41,350 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915493419] [2021-06-05 03:50:41,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:41,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:41,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:41,452 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:41,453 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915493419] [2021-06-05 03:50:41,453 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915493419] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:41,453 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:41,453 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:41,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151199149] [2021-06-05 03:50:41,453 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:41,453 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:41,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:41,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:41,453 INFO L87 Difference]: Start difference. First operand 5277 states and 24927 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:41,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:41,568 INFO L93 Difference]: Finished difference Result 11760 states and 52546 transitions. [2021-06-05 03:50:41,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:41,568 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:41,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:41,596 INFO L225 Difference]: With dead ends: 11760 [2021-06-05 03:50:41,596 INFO L226 Difference]: Without dead ends: 11175 [2021-06-05 03:50:41,596 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:41,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11175 states. [2021-06-05 03:50:41,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11175 to 5167. [2021-06-05 03:50:41,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5167 states, 5166 states have (on average 4.736740224545103) internal successors, (24470), 5166 states have internal predecessors, (24470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:41,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 24470 transitions. [2021-06-05 03:50:41,825 INFO L78 Accepts]: Start accepts. Automaton has 5167 states and 24470 transitions. Word has length 29 [2021-06-05 03:50:41,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:41,825 INFO L482 AbstractCegarLoop]: Abstraction has 5167 states and 24470 transitions. [2021-06-05 03:50:41,825 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:41,825 INFO L276 IsEmpty]: Start isEmpty. Operand 5167 states and 24470 transitions. [2021-06-05 03:50:41,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:41,833 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:41,833 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:41,833 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1410 [2021-06-05 03:50:41,833 INFO L430 AbstractCegarLoop]: === Iteration 1412 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:41,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:41,834 INFO L82 PathProgramCache]: Analyzing trace with hash 664250469, now seen corresponding path program 1407 times [2021-06-05 03:50:41,834 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:41,834 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685963121] [2021-06-05 03:50:41,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:41,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:41,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:41,946 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:41,946 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685963121] [2021-06-05 03:50:41,946 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685963121] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:41,946 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:41,946 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:41,946 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131977140] [2021-06-05 03:50:41,947 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:41,947 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:41,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:41,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:41,947 INFO L87 Difference]: Start difference. First operand 5167 states and 24470 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:42,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:42,042 INFO L93 Difference]: Finished difference Result 11586 states and 51877 transitions. [2021-06-05 03:50:42,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:42,042 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:42,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:42,069 INFO L225 Difference]: With dead ends: 11586 [2021-06-05 03:50:42,069 INFO L226 Difference]: Without dead ends: 11044 [2021-06-05 03:50:42,069 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 120.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:42,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11044 states. [2021-06-05 03:50:42,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11044 to 5271. [2021-06-05 03:50:42,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5271 states, 5270 states have (on average 4.716888045540797) internal successors, (24858), 5270 states have internal predecessors, (24858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:42,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5271 states to 5271 states and 24858 transitions. [2021-06-05 03:50:42,299 INFO L78 Accepts]: Start accepts. Automaton has 5271 states and 24858 transitions. Word has length 29 [2021-06-05 03:50:42,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:42,299 INFO L482 AbstractCegarLoop]: Abstraction has 5271 states and 24858 transitions. [2021-06-05 03:50:42,299 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:42,299 INFO L276 IsEmpty]: Start isEmpty. Operand 5271 states and 24858 transitions. [2021-06-05 03:50:42,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:42,307 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:42,307 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:42,307 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1411 [2021-06-05 03:50:42,308 INFO L430 AbstractCegarLoop]: === Iteration 1413 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:42,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:42,308 INFO L82 PathProgramCache]: Analyzing trace with hash 2085395493, now seen corresponding path program 1408 times [2021-06-05 03:50:42,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:42,308 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936945444] [2021-06-05 03:50:42,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:42,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:42,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:42,422 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:42,422 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936945444] [2021-06-05 03:50:42,422 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936945444] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:42,422 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:42,422 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:42,422 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857843370] [2021-06-05 03:50:42,422 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:42,422 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:42,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:42,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:42,422 INFO L87 Difference]: Start difference. First operand 5271 states and 24858 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:42,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:42,536 INFO L93 Difference]: Finished difference Result 11187 states and 50285 transitions. [2021-06-05 03:50:42,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:42,536 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:42,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:42,563 INFO L225 Difference]: With dead ends: 11187 [2021-06-05 03:50:42,563 INFO L226 Difference]: Without dead ends: 10620 [2021-06-05 03:50:42,563 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 138.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:42,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10620 states. [2021-06-05 03:50:42,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10620 to 5167. [2021-06-05 03:50:42,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5167 states, 5166 states have (on average 4.726674409601239) internal successors, (24418), 5166 states have internal predecessors, (24418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:42,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 24418 transitions. [2021-06-05 03:50:42,788 INFO L78 Accepts]: Start accepts. Automaton has 5167 states and 24418 transitions. Word has length 29 [2021-06-05 03:50:42,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:42,788 INFO L482 AbstractCegarLoop]: Abstraction has 5167 states and 24418 transitions. [2021-06-05 03:50:42,788 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:42,788 INFO L276 IsEmpty]: Start isEmpty. Operand 5167 states and 24418 transitions. [2021-06-05 03:50:42,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:42,796 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:42,796 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:42,796 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1412 [2021-06-05 03:50:42,797 INFO L430 AbstractCegarLoop]: === Iteration 1414 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:42,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:42,797 INFO L82 PathProgramCache]: Analyzing trace with hash 555088839, now seen corresponding path program 1409 times [2021-06-05 03:50:42,797 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:42,797 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7607934] [2021-06-05 03:50:42,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:42,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:42,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:42,898 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:42,899 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7607934] [2021-06-05 03:50:42,899 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7607934] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:42,899 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:42,899 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:42,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027199258] [2021-06-05 03:50:42,899 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:42,899 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:42,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:42,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:42,899 INFO L87 Difference]: Start difference. First operand 5167 states and 24418 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:43,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:43,017 INFO L93 Difference]: Finished difference Result 11487 states and 51418 transitions. [2021-06-05 03:50:43,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:43,018 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:43,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:43,045 INFO L225 Difference]: With dead ends: 11487 [2021-06-05 03:50:43,045 INFO L226 Difference]: Without dead ends: 11012 [2021-06-05 03:50:43,045 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 127.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:43,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11012 states. [2021-06-05 03:50:43,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11012 to 5239. [2021-06-05 03:50:43,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5239 states, 5238 states have (on average 4.714394807178312) internal successors, (24694), 5238 states have internal predecessors, (24694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:43,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5239 states to 5239 states and 24694 transitions. [2021-06-05 03:50:43,278 INFO L78 Accepts]: Start accepts. Automaton has 5239 states and 24694 transitions. Word has length 29 [2021-06-05 03:50:43,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:43,279 INFO L482 AbstractCegarLoop]: Abstraction has 5239 states and 24694 transitions. [2021-06-05 03:50:43,279 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:43,279 INFO L276 IsEmpty]: Start isEmpty. Operand 5239 states and 24694 transitions. [2021-06-05 03:50:43,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:43,288 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:43,288 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:43,288 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1413 [2021-06-05 03:50:43,288 INFO L430 AbstractCegarLoop]: === Iteration 1415 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:43,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:43,288 INFO L82 PathProgramCache]: Analyzing trace with hash -1560990811, now seen corresponding path program 1410 times [2021-06-05 03:50:43,288 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:43,288 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120761264] [2021-06-05 03:50:43,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:43,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:43,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:43,391 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:43,391 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120761264] [2021-06-05 03:50:43,391 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120761264] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:43,391 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:43,391 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:43,391 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712542909] [2021-06-05 03:50:43,391 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:43,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:43,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:43,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:43,392 INFO L87 Difference]: Start difference. First operand 5239 states and 24694 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:43,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:43,521 INFO L93 Difference]: Finished difference Result 11155 states and 50121 transitions. [2021-06-05 03:50:43,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:43,521 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:43,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:43,548 INFO L225 Difference]: With dead ends: 11155 [2021-06-05 03:50:43,548 INFO L226 Difference]: Without dead ends: 10568 [2021-06-05 03:50:43,549 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 127.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:43,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10568 states. [2021-06-05 03:50:43,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10568 to 5115. [2021-06-05 03:50:43,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5115 states, 5114 states have (on average 4.737974188502151) internal successors, (24230), 5114 states have internal predecessors, (24230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:43,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5115 states to 5115 states and 24230 transitions. [2021-06-05 03:50:43,777 INFO L78 Accepts]: Start accepts. Automaton has 5115 states and 24230 transitions. Word has length 29 [2021-06-05 03:50:43,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:43,777 INFO L482 AbstractCegarLoop]: Abstraction has 5115 states and 24230 transitions. [2021-06-05 03:50:43,777 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:43,778 INFO L276 IsEmpty]: Start isEmpty. Operand 5115 states and 24230 transitions. [2021-06-05 03:50:43,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:43,786 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:43,786 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:43,786 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1414 [2021-06-05 03:50:43,786 INFO L430 AbstractCegarLoop]: === Iteration 1416 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:43,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:43,787 INFO L82 PathProgramCache]: Analyzing trace with hash -996039737, now seen corresponding path program 1411 times [2021-06-05 03:50:43,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:43,787 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535849954] [2021-06-05 03:50:43,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:43,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:43,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:43,902 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:43,902 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535849954] [2021-06-05 03:50:43,902 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535849954] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:43,902 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:43,902 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:43,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72598411] [2021-06-05 03:50:43,902 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:43,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:43,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:43,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:43,902 INFO L87 Difference]: Start difference. First operand 5115 states and 24230 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:44,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:44,007 INFO L93 Difference]: Finished difference Result 11300 states and 50611 transitions. [2021-06-05 03:50:44,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:44,007 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:44,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:44,034 INFO L225 Difference]: With dead ends: 11300 [2021-06-05 03:50:44,034 INFO L226 Difference]: Without dead ends: 10885 [2021-06-05 03:50:44,034 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 123.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:44,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10885 states. [2021-06-05 03:50:44,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10885 to 5187. [2021-06-05 03:50:44,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5187 states, 5186 states have (on average 4.73004242190513) internal successors, (24530), 5186 states have internal predecessors, (24530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:44,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 5187 states and 24530 transitions. [2021-06-05 03:50:44,266 INFO L78 Accepts]: Start accepts. Automaton has 5187 states and 24530 transitions. Word has length 29 [2021-06-05 03:50:44,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:44,266 INFO L482 AbstractCegarLoop]: Abstraction has 5187 states and 24530 transitions. [2021-06-05 03:50:44,266 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:44,266 INFO L276 IsEmpty]: Start isEmpty. Operand 5187 states and 24530 transitions. [2021-06-05 03:50:44,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:44,275 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:44,275 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:44,275 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1415 [2021-06-05 03:50:44,275 INFO L430 AbstractCegarLoop]: === Iteration 1417 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:44,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:44,275 INFO L82 PathProgramCache]: Analyzing trace with hash -1842836699, now seen corresponding path program 1412 times [2021-06-05 03:50:44,275 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:44,275 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203193866] [2021-06-05 03:50:44,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:44,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:44,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:44,390 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:44,390 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203193866] [2021-06-05 03:50:44,390 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203193866] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:44,390 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:44,390 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:44,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301488142] [2021-06-05 03:50:44,390 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:44,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:44,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:44,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:44,390 INFO L87 Difference]: Start difference. First operand 5187 states and 24530 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:44,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:44,509 INFO L93 Difference]: Finished difference Result 11360 states and 50827 transitions. [2021-06-05 03:50:44,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:44,509 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:44,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:44,537 INFO L225 Difference]: With dead ends: 11360 [2021-06-05 03:50:44,538 INFO L226 Difference]: Without dead ends: 10837 [2021-06-05 03:50:44,538 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 139.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:44,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10837 states. [2021-06-05 03:50:44,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10837 to 5139. [2021-06-05 03:50:44,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5139 states, 5138 states have (on average 4.735305566368237) internal successors, (24330), 5138 states have internal predecessors, (24330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:44,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5139 states to 5139 states and 24330 transitions. [2021-06-05 03:50:44,770 INFO L78 Accepts]: Start accepts. Automaton has 5139 states and 24330 transitions. Word has length 29 [2021-06-05 03:50:44,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:44,770 INFO L482 AbstractCegarLoop]: Abstraction has 5139 states and 24330 transitions. [2021-06-05 03:50:44,770 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:44,770 INFO L276 IsEmpty]: Start isEmpty. Operand 5139 states and 24330 transitions. [2021-06-05 03:50:44,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:44,778 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:44,778 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:44,779 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1416 [2021-06-05 03:50:44,779 INFO L430 AbstractCegarLoop]: === Iteration 1418 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:44,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:44,779 INFO L82 PathProgramCache]: Analyzing trace with hash 1265914917, now seen corresponding path program 1413 times [2021-06-05 03:50:44,779 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:44,779 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209475893] [2021-06-05 03:50:44,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:44,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:44,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:44,884 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:44,884 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209475893] [2021-06-05 03:50:44,884 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209475893] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:44,884 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:44,884 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:44,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846754933] [2021-06-05 03:50:44,884 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:44,884 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:44,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:44,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:44,884 INFO L87 Difference]: Start difference. First operand 5139 states and 24330 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:44,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:44,985 INFO L93 Difference]: Finished difference Result 11192 states and 50147 transitions. [2021-06-05 03:50:44,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:44,985 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:44,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:45,013 INFO L225 Difference]: With dead ends: 11192 [2021-06-05 03:50:45,013 INFO L226 Difference]: Without dead ends: 10777 [2021-06-05 03:50:45,013 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 113.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:45,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10777 states. [2021-06-05 03:50:45,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10777 to 5187. [2021-06-05 03:50:45,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5187 states, 5186 states have (on average 4.725414577709217) internal successors, (24506), 5186 states have internal predecessors, (24506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:45,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 5187 states and 24506 transitions. [2021-06-05 03:50:45,243 INFO L78 Accepts]: Start accepts. Automaton has 5187 states and 24506 transitions. Word has length 29 [2021-06-05 03:50:45,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:45,243 INFO L482 AbstractCegarLoop]: Abstraction has 5187 states and 24506 transitions. [2021-06-05 03:50:45,243 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:45,244 INFO L276 IsEmpty]: Start isEmpty. Operand 5187 states and 24506 transitions. [2021-06-05 03:50:45,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:45,252 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:45,252 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:45,252 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1417 [2021-06-05 03:50:45,252 INFO L430 AbstractCegarLoop]: === Iteration 1419 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:45,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:45,253 INFO L82 PathProgramCache]: Analyzing trace with hash -1492452315, now seen corresponding path program 1414 times [2021-06-05 03:50:45,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:45,253 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789913467] [2021-06-05 03:50:45,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:45,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:45,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:45,355 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:45,355 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789913467] [2021-06-05 03:50:45,355 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789913467] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:45,355 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:45,355 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:45,355 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6873860] [2021-06-05 03:50:45,355 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:45,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:45,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:45,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:45,355 INFO L87 Difference]: Start difference. First operand 5187 states and 24506 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:45,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:45,469 INFO L93 Difference]: Finished difference Result 10920 states and 49138 transitions. [2021-06-05 03:50:45,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:45,470 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:45,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:45,497 INFO L225 Difference]: With dead ends: 10920 [2021-06-05 03:50:45,497 INFO L226 Difference]: Without dead ends: 10409 [2021-06-05 03:50:45,497 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 127.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:45,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10409 states. [2021-06-05 03:50:45,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10409 to 5139. [2021-06-05 03:50:45,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5139 states, 5138 states have (on average 4.730634488127676) internal successors, (24306), 5138 states have internal predecessors, (24306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:45,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5139 states to 5139 states and 24306 transitions. [2021-06-05 03:50:45,724 INFO L78 Accepts]: Start accepts. Automaton has 5139 states and 24306 transitions. Word has length 29 [2021-06-05 03:50:45,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:45,724 INFO L482 AbstractCegarLoop]: Abstraction has 5139 states and 24306 transitions. [2021-06-05 03:50:45,724 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:45,724 INFO L276 IsEmpty]: Start isEmpty. Operand 5139 states and 24306 transitions. [2021-06-05 03:50:45,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:45,733 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:45,733 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:45,733 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1418 [2021-06-05 03:50:45,733 INFO L430 AbstractCegarLoop]: === Iteration 1420 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:45,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:45,733 INFO L82 PathProgramCache]: Analyzing trace with hash 409166851, now seen corresponding path program 1415 times [2021-06-05 03:50:45,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:45,733 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323726366] [2021-06-05 03:50:45,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:45,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:45,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:45,838 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:45,838 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323726366] [2021-06-05 03:50:45,838 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323726366] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:45,838 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:45,838 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:45,838 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346960674] [2021-06-05 03:50:45,838 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:45,838 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:45,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:45,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:45,838 INFO L87 Difference]: Start difference. First operand 5139 states and 24306 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:45,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:45,956 INFO L93 Difference]: Finished difference Result 11276 states and 50511 transitions. [2021-06-05 03:50:45,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:45,957 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:45,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:45,984 INFO L225 Difference]: With dead ends: 11276 [2021-06-05 03:50:45,984 INFO L226 Difference]: Without dead ends: 10801 [2021-06-05 03:50:45,984 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 130.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:46,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10801 states. [2021-06-05 03:50:46,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10801 to 5211. [2021-06-05 03:50:46,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5211 states, 5210 states have (on average 4.718234165067178) internal successors, (24582), 5210 states have internal predecessors, (24582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:46,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5211 states to 5211 states and 24582 transitions. [2021-06-05 03:50:46,218 INFO L78 Accepts]: Start accepts. Automaton has 5211 states and 24582 transitions. Word has length 29 [2021-06-05 03:50:46,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:46,218 INFO L482 AbstractCegarLoop]: Abstraction has 5211 states and 24582 transitions. [2021-06-05 03:50:46,218 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:46,219 INFO L276 IsEmpty]: Start isEmpty. Operand 5211 states and 24582 transitions. [2021-06-05 03:50:46,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:46,227 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:46,227 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:46,227 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1419 [2021-06-05 03:50:46,227 INFO L430 AbstractCegarLoop]: === Iteration 1421 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:46,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:46,228 INFO L82 PathProgramCache]: Analyzing trace with hash -764792859, now seen corresponding path program 1416 times [2021-06-05 03:50:46,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:46,228 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252456125] [2021-06-05 03:50:46,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:46,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:46,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:46,332 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:46,332 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252456125] [2021-06-05 03:50:46,332 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252456125] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:46,332 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:46,332 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:46,332 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883410276] [2021-06-05 03:50:46,332 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:46,332 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:46,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:46,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:46,333 INFO L87 Difference]: Start difference. First operand 5211 states and 24582 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:46,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:46,456 INFO L93 Difference]: Finished difference Result 10944 states and 49214 transitions. [2021-06-05 03:50:46,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:46,456 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:46,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:46,482 INFO L225 Difference]: With dead ends: 10944 [2021-06-05 03:50:46,482 INFO L226 Difference]: Without dead ends: 10365 [2021-06-05 03:50:46,482 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 130.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:46,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10365 states. [2021-06-05 03:50:46,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10365 to 5095. [2021-06-05 03:50:46,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5095 states, 5094 states have (on average 4.744405182567727) internal successors, (24168), 5094 states have internal predecessors, (24168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:46,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5095 states to 5095 states and 24168 transitions. [2021-06-05 03:50:46,712 INFO L78 Accepts]: Start accepts. Automaton has 5095 states and 24168 transitions. Word has length 29 [2021-06-05 03:50:46,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:46,712 INFO L482 AbstractCegarLoop]: Abstraction has 5095 states and 24168 transitions. [2021-06-05 03:50:46,712 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:46,712 INFO L276 IsEmpty]: Start isEmpty. Operand 5095 states and 24168 transitions. [2021-06-05 03:50:46,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:46,720 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:46,720 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:46,720 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1420 [2021-06-05 03:50:46,720 INFO L430 AbstractCegarLoop]: === Iteration 1422 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:46,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:46,721 INFO L82 PathProgramCache]: Analyzing trace with hash 1753225001, now seen corresponding path program 1417 times [2021-06-05 03:50:46,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:46,721 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157235922] [2021-06-05 03:50:46,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:46,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:46,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:46,842 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:46,843 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157235922] [2021-06-05 03:50:46,843 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157235922] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:46,843 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:46,843 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:46,843 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074318596] [2021-06-05 03:50:46,843 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:46,843 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:46,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:46,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:46,843 INFO L87 Difference]: Start difference. First operand 5095 states and 24168 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:46,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:46,974 INFO L93 Difference]: Finished difference Result 11231 states and 50333 transitions. [2021-06-05 03:50:46,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:46,974 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:46,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:47,002 INFO L225 Difference]: With dead ends: 11231 [2021-06-05 03:50:47,002 INFO L226 Difference]: Without dead ends: 10754 [2021-06-05 03:50:47,002 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 147.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:47,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10754 states. [2021-06-05 03:50:47,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10754 to 5179. [2021-06-05 03:50:47,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.738509076863654) internal successors, (24536), 5178 states have internal predecessors, (24536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:47,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24536 transitions. [2021-06-05 03:50:47,236 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24536 transitions. Word has length 29 [2021-06-05 03:50:47,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:47,236 INFO L482 AbstractCegarLoop]: Abstraction has 5179 states and 24536 transitions. [2021-06-05 03:50:47,236 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:47,236 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24536 transitions. [2021-06-05 03:50:47,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:47,245 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:47,245 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:47,245 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1421 [2021-06-05 03:50:47,245 INFO L430 AbstractCegarLoop]: === Iteration 1423 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:47,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:47,245 INFO L82 PathProgramCache]: Analyzing trace with hash 906428039, now seen corresponding path program 1418 times [2021-06-05 03:50:47,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:47,245 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441782222] [2021-06-05 03:50:47,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:47,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:47,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:47,369 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:47,369 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441782222] [2021-06-05 03:50:47,369 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441782222] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:47,369 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:47,369 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:47,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682664078] [2021-06-05 03:50:47,369 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:47,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:47,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:47,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:47,369 INFO L87 Difference]: Start difference. First operand 5179 states and 24536 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:47,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:47,472 INFO L93 Difference]: Finished difference Result 11169 states and 50016 transitions. [2021-06-05 03:50:47,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:47,472 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:47,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:47,499 INFO L225 Difference]: With dead ends: 11169 [2021-06-05 03:50:47,499 INFO L226 Difference]: Without dead ends: 10706 [2021-06-05 03:50:47,499 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 131.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:47,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10706 states. [2021-06-05 03:50:47,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10706 to 5131. [2021-06-05 03:50:47,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.743859649122807) internal successors, (24336), 5130 states have internal predecessors, (24336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:47,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24336 transitions. [2021-06-05 03:50:47,728 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24336 transitions. Word has length 29 [2021-06-05 03:50:47,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:47,728 INFO L482 AbstractCegarLoop]: Abstraction has 5131 states and 24336 transitions. [2021-06-05 03:50:47,728 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:47,728 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24336 transitions. [2021-06-05 03:50:47,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:47,737 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:47,737 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:47,737 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1422 [2021-06-05 03:50:47,737 INFO L430 AbstractCegarLoop]: === Iteration 1424 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:47,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:47,737 INFO L82 PathProgramCache]: Analyzing trace with hash -269836537, now seen corresponding path program 1419 times [2021-06-05 03:50:47,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:47,738 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311239145] [2021-06-05 03:50:47,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:47,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:47,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:47,852 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:47,852 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311239145] [2021-06-05 03:50:47,852 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311239145] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:47,852 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:47,852 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:47,852 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447408277] [2021-06-05 03:50:47,852 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:47,852 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:47,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:47,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:47,852 INFO L87 Difference]: Start difference. First operand 5131 states and 24336 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:47,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:47,972 INFO L93 Difference]: Finished difference Result 11321 states and 50720 transitions. [2021-06-05 03:50:47,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:47,973 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:47,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:48,000 INFO L225 Difference]: With dead ends: 11321 [2021-06-05 03:50:48,000 INFO L226 Difference]: Without dead ends: 10844 [2021-06-05 03:50:48,000 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 139.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:48,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10844 states. [2021-06-05 03:50:48,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10844 to 5209. [2021-06-05 03:50:48,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5209 states, 5208 states have (on average 4.729070660522273) internal successors, (24629), 5208 states have internal predecessors, (24629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:48,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5209 states to 5209 states and 24629 transitions. [2021-06-05 03:50:48,230 INFO L78 Accepts]: Start accepts. Automaton has 5209 states and 24629 transitions. Word has length 29 [2021-06-05 03:50:48,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:48,230 INFO L482 AbstractCegarLoop]: Abstraction has 5209 states and 24629 transitions. [2021-06-05 03:50:48,230 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:48,230 INFO L276 IsEmpty]: Start isEmpty. Operand 5209 states and 24629 transitions. [2021-06-05 03:50:48,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:48,239 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:48,239 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:48,239 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1423 [2021-06-05 03:50:48,239 INFO L430 AbstractCegarLoop]: === Iteration 1425 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:48,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:48,239 INFO L82 PathProgramCache]: Analyzing trace with hash -1065863417, now seen corresponding path program 1420 times [2021-06-05 03:50:48,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:48,239 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303230233] [2021-06-05 03:50:48,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:48,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:48,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:48,352 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:48,352 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303230233] [2021-06-05 03:50:48,352 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303230233] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:48,352 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:48,352 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:48,352 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036648719] [2021-06-05 03:50:48,352 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:48,352 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:48,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:48,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:48,353 INFO L87 Difference]: Start difference. First operand 5209 states and 24629 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:48,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:48,474 INFO L93 Difference]: Finished difference Result 11319 states and 50637 transitions. [2021-06-05 03:50:48,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:48,475 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:48,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:48,502 INFO L225 Difference]: With dead ends: 11319 [2021-06-05 03:50:48,502 INFO L226 Difference]: Without dead ends: 10766 [2021-06-05 03:50:48,502 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 137.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:48,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10766 states. [2021-06-05 03:50:48,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10766 to 5131. [2021-06-05 03:50:48,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.739181286549708) internal successors, (24312), 5130 states have internal predecessors, (24312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:48,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24312 transitions. [2021-06-05 03:50:48,730 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24312 transitions. Word has length 29 [2021-06-05 03:50:48,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:48,730 INFO L482 AbstractCegarLoop]: Abstraction has 5131 states and 24312 transitions. [2021-06-05 03:50:48,730 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:48,730 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24312 transitions. [2021-06-05 03:50:48,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:48,738 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:48,738 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:48,738 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1424 [2021-06-05 03:50:48,739 INFO L430 AbstractCegarLoop]: === Iteration 1426 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:48,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:48,739 INFO L82 PathProgramCache]: Analyzing trace with hash -1126584603, now seen corresponding path program 1421 times [2021-06-05 03:50:48,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:48,739 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497987112] [2021-06-05 03:50:48,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:48,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:48,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:48,864 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:48,864 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497987112] [2021-06-05 03:50:48,864 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497987112] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:48,864 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:48,864 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:48,864 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367788735] [2021-06-05 03:50:48,864 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:48,864 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:48,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:48,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:48,865 INFO L87 Difference]: Start difference. First operand 5131 states and 24312 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:48,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:48,980 INFO L93 Difference]: Finished difference Result 11167 states and 50011 transitions. [2021-06-05 03:50:48,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:48,981 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:48,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:49,007 INFO L225 Difference]: With dead ends: 11167 [2021-06-05 03:50:49,008 INFO L226 Difference]: Without dead ends: 10752 [2021-06-05 03:50:49,008 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 133.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:49,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10752 states. [2021-06-05 03:50:49,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10752 to 5179. [2021-06-05 03:50:49,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.7292390884511395) internal successors, (24488), 5178 states have internal predecessors, (24488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:49,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24488 transitions. [2021-06-05 03:50:49,236 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24488 transitions. Word has length 29 [2021-06-05 03:50:49,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:49,236 INFO L482 AbstractCegarLoop]: Abstraction has 5179 states and 24488 transitions. [2021-06-05 03:50:49,236 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:49,236 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24488 transitions. [2021-06-05 03:50:49,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:49,245 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:49,245 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:49,245 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1425 [2021-06-05 03:50:49,245 INFO L430 AbstractCegarLoop]: === Iteration 1427 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:49,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:49,245 INFO L82 PathProgramCache]: Analyzing trace with hash -1607486649, now seen corresponding path program 1422 times [2021-06-05 03:50:49,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:49,245 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985094958] [2021-06-05 03:50:49,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:49,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:49,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:49,371 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:49,371 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985094958] [2021-06-05 03:50:49,371 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985094958] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:49,371 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:49,371 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:49,371 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392497742] [2021-06-05 03:50:49,371 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:49,371 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:49,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:49,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:49,371 INFO L87 Difference]: Start difference. First operand 5179 states and 24488 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:49,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:49,534 INFO L93 Difference]: Finished difference Result 11227 states and 50227 transitions. [2021-06-05 03:50:49,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:49,535 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:49,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:49,562 INFO L225 Difference]: With dead ends: 11227 [2021-06-05 03:50:49,562 INFO L226 Difference]: Without dead ends: 10680 [2021-06-05 03:50:49,562 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 181.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:49,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10680 states. [2021-06-05 03:50:49,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10680 to 5107. [2021-06-05 03:50:49,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5107 states, 5106 states have (on average 4.744222483352918) internal successors, (24224), 5106 states have internal predecessors, (24224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:49,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5107 states to 5107 states and 24224 transitions. [2021-06-05 03:50:49,785 INFO L78 Accepts]: Start accepts. Automaton has 5107 states and 24224 transitions. Word has length 29 [2021-06-05 03:50:49,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:49,785 INFO L482 AbstractCegarLoop]: Abstraction has 5107 states and 24224 transitions. [2021-06-05 03:50:49,785 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:49,785 INFO L276 IsEmpty]: Start isEmpty. Operand 5107 states and 24224 transitions. [2021-06-05 03:50:49,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:49,794 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:49,794 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:49,794 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1426 [2021-06-05 03:50:49,794 INFO L430 AbstractCegarLoop]: === Iteration 1428 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:49,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:49,794 INFO L82 PathProgramCache]: Analyzing trace with hash -2056771577, now seen corresponding path program 1423 times [2021-06-05 03:50:49,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:49,794 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715867778] [2021-06-05 03:50:49,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:49,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:49,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:49,913 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:49,913 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715867778] [2021-06-05 03:50:49,913 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715867778] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:49,913 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:49,913 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:49,913 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878954710] [2021-06-05 03:50:49,913 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:49,913 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:49,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:49,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:49,913 INFO L87 Difference]: Start difference. First operand 5107 states and 24224 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:50,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:50,044 INFO L93 Difference]: Finished difference Result 11165 states and 50034 transitions. [2021-06-05 03:50:50,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:50,044 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:50,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:50,071 INFO L225 Difference]: With dead ends: 11165 [2021-06-05 03:50:50,072 INFO L226 Difference]: Without dead ends: 10688 [2021-06-05 03:50:50,072 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 143.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:50,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10688 states. [2021-06-05 03:50:50,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10688 to 5179. [2021-06-05 03:50:50,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.736191579760526) internal successors, (24524), 5178 states have internal predecessors, (24524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:50,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24524 transitions. [2021-06-05 03:50:50,302 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24524 transitions. Word has length 29 [2021-06-05 03:50:50,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:50,302 INFO L482 AbstractCegarLoop]: Abstraction has 5179 states and 24524 transitions. [2021-06-05 03:50:50,302 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:50,302 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24524 transitions. [2021-06-05 03:50:50,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:50,310 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:50,310 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:50,310 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1427 [2021-06-05 03:50:50,310 INFO L430 AbstractCegarLoop]: === Iteration 1429 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:50,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:50,310 INFO L82 PathProgramCache]: Analyzing trace with hash 1391398757, now seen corresponding path program 1424 times [2021-06-05 03:50:50,311 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:50,311 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488903775] [2021-06-05 03:50:50,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:50,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:50,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:50,431 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:50,431 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488903775] [2021-06-05 03:50:50,431 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488903775] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:50,431 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:50,431 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:50,431 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721221276] [2021-06-05 03:50:50,431 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:50,431 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:50,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:50,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:50,431 INFO L87 Difference]: Start difference. First operand 5179 states and 24524 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:50,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:50,524 INFO L93 Difference]: Finished difference Result 11103 states and 49717 transitions. [2021-06-05 03:50:50,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:50,524 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:50,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:50,551 INFO L225 Difference]: With dead ends: 11103 [2021-06-05 03:50:50,551 INFO L226 Difference]: Without dead ends: 10640 [2021-06-05 03:50:50,551 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:50,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10640 states. [2021-06-05 03:50:50,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10640 to 5131. [2021-06-05 03:50:50,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.741520467836257) internal successors, (24324), 5130 states have internal predecessors, (24324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:50,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24324 transitions. [2021-06-05 03:50:50,776 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24324 transitions. Word has length 29 [2021-06-05 03:50:50,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:50,776 INFO L482 AbstractCegarLoop]: Abstraction has 5131 states and 24324 transitions. [2021-06-05 03:50:50,776 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:50,776 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24324 transitions. [2021-06-05 03:50:50,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:50,785 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:50,785 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:50,785 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1428 [2021-06-05 03:50:50,785 INFO L430 AbstractCegarLoop]: === Iteration 1430 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:50,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:50,785 INFO L82 PathProgramCache]: Analyzing trace with hash 1442107399, now seen corresponding path program 1425 times [2021-06-05 03:50:50,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:50,785 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311193656] [2021-06-05 03:50:50,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:50,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:50,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:50,909 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:50,909 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311193656] [2021-06-05 03:50:50,909 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311193656] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:50,909 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:50,909 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:50,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467671191] [2021-06-05 03:50:50,909 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:50,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:50,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:50,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:50,909 INFO L87 Difference]: Start difference. First operand 5131 states and 24324 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:51,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:51,020 INFO L93 Difference]: Finished difference Result 11079 states and 49689 transitions. [2021-06-05 03:50:51,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:51,021 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:51,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:51,048 INFO L225 Difference]: With dead ends: 11079 [2021-06-05 03:50:51,048 INFO L226 Difference]: Without dead ends: 10602 [2021-06-05 03:50:51,048 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 148.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:51,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10602 states. [2021-06-05 03:50:51,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10602 to 5203. [2021-06-05 03:50:51,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5203 states, 5202 states have (on average 4.728950403690888) internal successors, (24600), 5202 states have internal predecessors, (24600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:51,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5203 states to 5203 states and 24600 transitions. [2021-06-05 03:50:51,275 INFO L78 Accepts]: Start accepts. Automaton has 5203 states and 24600 transitions. Word has length 29 [2021-06-05 03:50:51,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:51,275 INFO L482 AbstractCegarLoop]: Abstraction has 5203 states and 24600 transitions. [2021-06-05 03:50:51,275 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:51,275 INFO L276 IsEmpty]: Start isEmpty. Operand 5203 states and 24600 transitions. [2021-06-05 03:50:51,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:51,284 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:51,284 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:51,284 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1429 [2021-06-05 03:50:51,284 INFO L430 AbstractCegarLoop]: === Iteration 1431 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:51,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:51,284 INFO L82 PathProgramCache]: Analyzing trace with hash 1016367111, now seen corresponding path program 1426 times [2021-06-05 03:50:51,284 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:51,285 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111563209] [2021-06-05 03:50:51,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:51,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:51,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:51,409 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:51,409 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111563209] [2021-06-05 03:50:51,409 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111563209] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:51,409 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:51,409 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:51,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640299024] [2021-06-05 03:50:51,409 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:51,409 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:51,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:51,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:51,409 INFO L87 Difference]: Start difference. First operand 5203 states and 24600 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:51,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:51,521 INFO L93 Difference]: Finished difference Result 10745 states and 48387 transitions. [2021-06-05 03:50:51,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:51,521 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:51,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:51,547 INFO L225 Difference]: With dead ends: 10745 [2021-06-05 03:50:51,548 INFO L226 Difference]: Without dead ends: 10210 [2021-06-05 03:50:51,548 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 149.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:51,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10210 states. [2021-06-05 03:50:51,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10210 to 5131. [2021-06-05 03:50:51,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.7368421052631575) internal successors, (24300), 5130 states have internal predecessors, (24300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:51,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24300 transitions. [2021-06-05 03:50:51,775 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24300 transitions. Word has length 29 [2021-06-05 03:50:51,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:51,775 INFO L482 AbstractCegarLoop]: Abstraction has 5131 states and 24300 transitions. [2021-06-05 03:50:51,775 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:51,775 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24300 transitions. [2021-06-05 03:50:51,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:51,784 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:51,784 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:51,784 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1430 [2021-06-05 03:50:51,784 INFO L430 AbstractCegarLoop]: === Iteration 1432 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:51,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:51,784 INFO L82 PathProgramCache]: Analyzing trace with hash 585359333, now seen corresponding path program 1427 times [2021-06-05 03:50:51,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:51,784 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280255551] [2021-06-05 03:50:51,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:51,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:51,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:51,898 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:51,898 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280255551] [2021-06-05 03:50:51,898 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280255551] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:51,898 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:51,898 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:51,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721014120] [2021-06-05 03:50:51,898 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:51,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:51,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:51,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:51,898 INFO L87 Difference]: Start difference. First operand 5131 states and 24300 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:51,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:51,994 INFO L93 Difference]: Finished difference Result 10993 states and 49272 transitions. [2021-06-05 03:50:51,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:51,994 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:51,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:52,021 INFO L225 Difference]: With dead ends: 10993 [2021-06-05 03:50:52,021 INFO L226 Difference]: Without dead ends: 10578 [2021-06-05 03:50:52,021 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 121.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:52,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10578 states. [2021-06-05 03:50:52,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10578 to 5179. [2021-06-05 03:50:52,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.7269215913480105) internal successors, (24476), 5178 states have internal predecessors, (24476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:52,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24476 transitions. [2021-06-05 03:50:52,250 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24476 transitions. Word has length 29 [2021-06-05 03:50:52,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:52,250 INFO L482 AbstractCegarLoop]: Abstraction has 5179 states and 24476 transitions. [2021-06-05 03:50:52,250 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:52,250 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24476 transitions. [2021-06-05 03:50:52,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:52,259 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:52,259 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:52,259 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1431 [2021-06-05 03:50:52,259 INFO L430 AbstractCegarLoop]: === Iteration 1433 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:52,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:52,259 INFO L82 PathProgramCache]: Analyzing trace with hash -1281658041, now seen corresponding path program 1428 times [2021-06-05 03:50:52,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:52,259 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269110221] [2021-06-05 03:50:52,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:52,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:52,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:52,373 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:52,373 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269110221] [2021-06-05 03:50:52,373 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269110221] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:52,373 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:52,373 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:52,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943314780] [2021-06-05 03:50:52,373 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:52,373 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:52,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:52,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:52,373 INFO L87 Difference]: Start difference. First operand 5179 states and 24476 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:52,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:52,488 INFO L93 Difference]: Finished difference Result 10721 states and 48263 transitions. [2021-06-05 03:50:52,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:52,488 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:52,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:52,515 INFO L225 Difference]: With dead ends: 10721 [2021-06-05 03:50:52,515 INFO L226 Difference]: Without dead ends: 10186 [2021-06-05 03:50:52,515 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 138.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:52,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10186 states. [2021-06-05 03:50:52,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10186 to 5107. [2021-06-05 03:50:52,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5107 states, 5106 states have (on average 4.741872307089698) internal successors, (24212), 5106 states have internal predecessors, (24212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:52,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5107 states to 5107 states and 24212 transitions. [2021-06-05 03:50:52,751 INFO L78 Accepts]: Start accepts. Automaton has 5107 states and 24212 transitions. Word has length 29 [2021-06-05 03:50:52,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:52,751 INFO L482 AbstractCegarLoop]: Abstraction has 5107 states and 24212 transitions. [2021-06-05 03:50:52,751 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:52,751 INFO L276 IsEmpty]: Start isEmpty. Operand 5107 states and 24212 transitions. [2021-06-05 03:50:52,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:52,759 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:52,759 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:52,759 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1432 [2021-06-05 03:50:52,760 INFO L430 AbstractCegarLoop]: === Iteration 1434 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:52,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:52,760 INFO L82 PathProgramCache]: Analyzing trace with hash -757942171, now seen corresponding path program 1429 times [2021-06-05 03:50:52,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:52,760 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141439533] [2021-06-05 03:50:52,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:52,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:52,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:52,864 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:52,864 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141439533] [2021-06-05 03:50:52,864 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141439533] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:52,864 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:52,864 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:52,864 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537654331] [2021-06-05 03:50:52,864 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:52,864 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:52,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:52,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:52,864 INFO L87 Difference]: Start difference. First operand 5107 states and 24212 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:52,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:52,979 INFO L93 Difference]: Finished difference Result 11351 states and 50889 transitions. [2021-06-05 03:50:52,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:52,980 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:52,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:53,007 INFO L225 Difference]: With dead ends: 11351 [2021-06-05 03:50:53,007 INFO L226 Difference]: Without dead ends: 10874 [2021-06-05 03:50:53,007 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 127.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:53,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10874 states. [2021-06-05 03:50:53,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10874 to 5221. [2021-06-05 03:50:53,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5221 states, 5220 states have (on average 4.731226053639847) internal successors, (24697), 5220 states have internal predecessors, (24697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:53,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5221 states to 5221 states and 24697 transitions. [2021-06-05 03:50:53,240 INFO L78 Accepts]: Start accepts. Automaton has 5221 states and 24697 transitions. Word has length 29 [2021-06-05 03:50:53,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:53,241 INFO L482 AbstractCegarLoop]: Abstraction has 5221 states and 24697 transitions. [2021-06-05 03:50:53,241 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:53,241 INFO L276 IsEmpty]: Start isEmpty. Operand 5221 states and 24697 transitions. [2021-06-05 03:50:53,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:53,250 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:53,250 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:53,250 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1433 [2021-06-05 03:50:53,250 INFO L430 AbstractCegarLoop]: === Iteration 1435 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:53,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:53,250 INFO L82 PathProgramCache]: Analyzing trace with hash -1553969051, now seen corresponding path program 1430 times [2021-06-05 03:50:53,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:53,250 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465072670] [2021-06-05 03:50:53,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:53,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:53,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:53,354 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:53,354 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465072670] [2021-06-05 03:50:53,354 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465072670] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:53,354 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:53,354 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:53,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093569136] [2021-06-05 03:50:53,354 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:53,354 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:53,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:53,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:53,355 INFO L87 Difference]: Start difference. First operand 5221 states and 24697 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:53,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:53,468 INFO L93 Difference]: Finished difference Result 11349 states and 50806 transitions. [2021-06-05 03:50:53,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:53,468 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:53,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:53,495 INFO L225 Difference]: With dead ends: 11349 [2021-06-05 03:50:53,495 INFO L226 Difference]: Without dead ends: 10796 [2021-06-05 03:50:53,496 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:53,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10796 states. [2021-06-05 03:50:53,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10796 to 5143. [2021-06-05 03:50:53,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.73901205756515) internal successors, (24368), 5142 states have internal predecessors, (24368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:53,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24368 transitions. [2021-06-05 03:50:53,723 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24368 transitions. Word has length 29 [2021-06-05 03:50:53,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:53,723 INFO L482 AbstractCegarLoop]: Abstraction has 5143 states and 24368 transitions. [2021-06-05 03:50:53,723 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:53,723 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24368 transitions. [2021-06-05 03:50:53,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:53,732 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:53,732 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:53,732 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1434 [2021-06-05 03:50:53,732 INFO L430 AbstractCegarLoop]: === Iteration 1436 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:53,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:53,732 INFO L82 PathProgramCache]: Analyzing trace with hash 643175367, now seen corresponding path program 1431 times [2021-06-05 03:50:53,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:53,732 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272638191] [2021-06-05 03:50:53,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:53,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:53,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:53,848 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:53,848 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272638191] [2021-06-05 03:50:53,848 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272638191] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:53,848 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:53,848 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:53,848 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326117091] [2021-06-05 03:50:53,848 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:53,848 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:53,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:53,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:53,848 INFO L87 Difference]: Start difference. First operand 5143 states and 24368 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:53,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:53,962 INFO L93 Difference]: Finished difference Result 11175 states and 50121 transitions. [2021-06-05 03:50:53,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:53,963 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:53,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:53,990 INFO L225 Difference]: With dead ends: 11175 [2021-06-05 03:50:53,990 INFO L226 Difference]: Without dead ends: 10698 [2021-06-05 03:50:53,990 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 141.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:54,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10698 states. [2021-06-05 03:50:54,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10698 to 5215. [2021-06-05 03:50:54,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5215 states, 5214 states have (on average 4.7265055619486) internal successors, (24644), 5214 states have internal predecessors, (24644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:54,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5215 states to 5215 states and 24644 transitions. [2021-06-05 03:50:54,220 INFO L78 Accepts]: Start accepts. Automaton has 5215 states and 24644 transitions. Word has length 29 [2021-06-05 03:50:54,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:54,220 INFO L482 AbstractCegarLoop]: Abstraction has 5215 states and 24644 transitions. [2021-06-05 03:50:54,220 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:54,220 INFO L276 IsEmpty]: Start isEmpty. Operand 5215 states and 24644 transitions. [2021-06-05 03:50:54,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:54,229 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:54,229 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:54,229 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1435 [2021-06-05 03:50:54,229 INFO L430 AbstractCegarLoop]: === Iteration 1437 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:54,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:54,229 INFO L82 PathProgramCache]: Analyzing trace with hash -1820553115, now seen corresponding path program 1432 times [2021-06-05 03:50:54,229 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:54,229 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254553277] [2021-06-05 03:50:54,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:54,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:54,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:54,345 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:54,345 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254553277] [2021-06-05 03:50:54,346 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254553277] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:54,346 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:54,346 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:54,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623704417] [2021-06-05 03:50:54,346 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:54,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:54,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:54,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:54,346 INFO L87 Difference]: Start difference. First operand 5215 states and 24644 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:54,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:54,459 INFO L93 Difference]: Finished difference Result 10841 states and 48819 transitions. [2021-06-05 03:50:54,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:54,459 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:54,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:54,487 INFO L225 Difference]: With dead ends: 10841 [2021-06-05 03:50:54,488 INFO L226 Difference]: Without dead ends: 10306 [2021-06-05 03:50:54,488 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 141.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:54,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10306 states. [2021-06-05 03:50:54,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10306 to 5143. [2021-06-05 03:50:54,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.732010890704006) internal successors, (24332), 5142 states have internal predecessors, (24332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:54,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24332 transitions. [2021-06-05 03:50:54,710 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24332 transitions. Word has length 29 [2021-06-05 03:50:54,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:54,710 INFO L482 AbstractCegarLoop]: Abstraction has 5143 states and 24332 transitions. [2021-06-05 03:50:54,710 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:54,710 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24332 transitions. [2021-06-05 03:50:54,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:54,719 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:54,719 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:54,719 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1436 [2021-06-05 03:50:54,719 INFO L430 AbstractCegarLoop]: === Iteration 1438 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:54,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:54,719 INFO L82 PathProgramCache]: Analyzing trace with hash 1626474597, now seen corresponding path program 1433 times [2021-06-05 03:50:54,719 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:54,719 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716133702] [2021-06-05 03:50:54,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:54,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:54,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:54,822 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:54,822 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716133702] [2021-06-05 03:50:54,822 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716133702] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:54,822 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:54,822 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:54,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498821539] [2021-06-05 03:50:54,823 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:54,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:54,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:54,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:54,823 INFO L87 Difference]: Start difference. First operand 5143 states and 24332 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:54,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:54,933 INFO L93 Difference]: Finished difference Result 11173 states and 50080 transitions. [2021-06-05 03:50:54,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:54,933 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:54,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:54,960 INFO L225 Difference]: With dead ends: 11173 [2021-06-05 03:50:54,960 INFO L226 Difference]: Without dead ends: 10698 [2021-06-05 03:50:54,961 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 127.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:55,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10698 states. [2021-06-05 03:50:55,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10698 to 5215. [2021-06-05 03:50:55,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5215 states, 5214 states have (on average 4.719601074031454) internal successors, (24608), 5214 states have internal predecessors, (24608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:55,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5215 states to 5215 states and 24608 transitions. [2021-06-05 03:50:55,187 INFO L78 Accepts]: Start accepts. Automaton has 5215 states and 24608 transitions. Word has length 29 [2021-06-05 03:50:55,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:55,187 INFO L482 AbstractCegarLoop]: Abstraction has 5215 states and 24608 transitions. [2021-06-05 03:50:55,187 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:55,187 INFO L276 IsEmpty]: Start isEmpty. Operand 5215 states and 24608 transitions. [2021-06-05 03:50:55,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:55,196 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:55,196 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:55,196 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1437 [2021-06-05 03:50:55,196 INFO L430 AbstractCegarLoop]: === Iteration 1439 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:55,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:55,196 INFO L82 PathProgramCache]: Analyzing trace with hash 452514887, now seen corresponding path program 1434 times [2021-06-05 03:50:55,196 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:55,196 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926077185] [2021-06-05 03:50:55,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:55,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:55,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:55,299 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:55,299 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926077185] [2021-06-05 03:50:55,299 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926077185] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:55,299 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:55,299 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:55,299 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398702629] [2021-06-05 03:50:55,299 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:55,299 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:55,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:55,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:55,299 INFO L87 Difference]: Start difference. First operand 5215 states and 24608 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:55,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:55,418 INFO L93 Difference]: Finished difference Result 10841 states and 48783 transitions. [2021-06-05 03:50:55,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:55,418 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:55,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:55,444 INFO L225 Difference]: With dead ends: 10841 [2021-06-05 03:50:55,444 INFO L226 Difference]: Without dead ends: 10270 [2021-06-05 03:50:55,444 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 126.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:55,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10270 states. [2021-06-05 03:50:55,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10270 to 5107. [2021-06-05 03:50:55,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5107 states, 5106 states have (on average 4.7395221308264786) internal successors, (24200), 5106 states have internal predecessors, (24200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:55,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5107 states to 5107 states and 24200 transitions. [2021-06-05 03:50:55,668 INFO L78 Accepts]: Start accepts. Automaton has 5107 states and 24200 transitions. Word has length 29 [2021-06-05 03:50:55,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:55,668 INFO L482 AbstractCegarLoop]: Abstraction has 5107 states and 24200 transitions. [2021-06-05 03:50:55,668 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:55,668 INFO L276 IsEmpty]: Start isEmpty. Operand 5107 states and 24200 transitions. [2021-06-05 03:50:55,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:55,677 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:55,677 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:55,677 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1438 [2021-06-05 03:50:55,677 INFO L430 AbstractCegarLoop]: === Iteration 1440 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:55,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:55,677 INFO L82 PathProgramCache]: Analyzing trace with hash 1707200707, now seen corresponding path program 1435 times [2021-06-05 03:50:55,677 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:55,677 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748203402] [2021-06-05 03:50:55,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:55,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:55,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:55,793 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:55,793 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748203402] [2021-06-05 03:50:55,793 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748203402] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:55,793 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:55,793 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:55,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353245141] [2021-06-05 03:50:55,794 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:55,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:55,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:55,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:55,794 INFO L87 Difference]: Start difference. First operand 5107 states and 24200 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:55,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:55,907 INFO L93 Difference]: Finished difference Result 11099 states and 49731 transitions. [2021-06-05 03:50:55,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:55,908 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:55,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:55,934 INFO L225 Difference]: With dead ends: 11099 [2021-06-05 03:50:55,935 INFO L226 Difference]: Without dead ends: 10684 [2021-06-05 03:50:55,935 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 124.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:56,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10684 states. [2021-06-05 03:50:56,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10684 to 5179. [2021-06-05 03:50:56,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.731556585554268) internal successors, (24500), 5178 states have internal predecessors, (24500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:56,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24500 transitions. [2021-06-05 03:50:56,164 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24500 transitions. Word has length 29 [2021-06-05 03:50:56,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:56,164 INFO L482 AbstractCegarLoop]: Abstraction has 5179 states and 24500 transitions. [2021-06-05 03:50:56,164 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:56,164 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24500 transitions. [2021-06-05 03:50:56,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:56,173 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:56,173 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:56,173 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1439 [2021-06-05 03:50:56,173 INFO L430 AbstractCegarLoop]: === Iteration 1441 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:56,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:56,173 INFO L82 PathProgramCache]: Analyzing trace with hash 1226298661, now seen corresponding path program 1436 times [2021-06-05 03:50:56,174 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:56,174 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807966273] [2021-06-05 03:50:56,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:56,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:56,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:56,289 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:56,289 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807966273] [2021-06-05 03:50:56,289 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807966273] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:56,289 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:56,289 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:56,289 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718206904] [2021-06-05 03:50:56,289 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:56,289 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:56,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:56,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:56,289 INFO L87 Difference]: Start difference. First operand 5179 states and 24500 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:56,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:56,407 INFO L93 Difference]: Finished difference Result 11159 states and 49947 transitions. [2021-06-05 03:50:56,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:56,407 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:56,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:56,434 INFO L225 Difference]: With dead ends: 11159 [2021-06-05 03:50:56,434 INFO L226 Difference]: Without dead ends: 10636 [2021-06-05 03:50:56,434 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 140.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:56,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10636 states. [2021-06-05 03:50:56,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10636 to 5131. [2021-06-05 03:50:56,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.7368421052631575) internal successors, (24300), 5130 states have internal predecessors, (24300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:56,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24300 transitions. [2021-06-05 03:50:56,661 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24300 transitions. Word has length 29 [2021-06-05 03:50:56,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:56,662 INFO L482 AbstractCegarLoop]: Abstraction has 5131 states and 24300 transitions. [2021-06-05 03:50:56,662 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:56,662 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24300 transitions. [2021-06-05 03:50:56,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:56,670 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:56,670 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:56,670 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1440 [2021-06-05 03:50:56,670 INFO L430 AbstractCegarLoop]: === Iteration 1442 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:56,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:56,671 INFO L82 PathProgramCache]: Analyzing trace with hash -1186649051, now seen corresponding path program 1437 times [2021-06-05 03:50:56,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:56,671 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412648887] [2021-06-05 03:50:56,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:56,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:56,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:56,777 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:56,777 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412648887] [2021-06-05 03:50:56,777 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412648887] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:56,777 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:56,777 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:56,777 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384849869] [2021-06-05 03:50:56,777 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:56,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:56,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:56,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:56,778 INFO L87 Difference]: Start difference. First operand 5131 states and 24300 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:56,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:56,878 INFO L93 Difference]: Finished difference Result 10991 states and 49267 transitions. [2021-06-05 03:50:56,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:56,878 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:56,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:56,905 INFO L225 Difference]: With dead ends: 10991 [2021-06-05 03:50:56,906 INFO L226 Difference]: Without dead ends: 10576 [2021-06-05 03:50:56,906 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 114.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:57,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10576 states. [2021-06-05 03:50:57,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10576 to 5179. [2021-06-05 03:50:57,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.7269215913480105) internal successors, (24476), 5178 states have internal predecessors, (24476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:57,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24476 transitions. [2021-06-05 03:50:57,134 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24476 transitions. Word has length 29 [2021-06-05 03:50:57,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:57,134 INFO L482 AbstractCegarLoop]: Abstraction has 5179 states and 24476 transitions. [2021-06-05 03:50:57,134 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:57,134 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24476 transitions. [2021-06-05 03:50:57,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:57,143 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:57,143 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:57,143 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1441 [2021-06-05 03:50:57,143 INFO L430 AbstractCegarLoop]: === Iteration 1443 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:57,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:57,143 INFO L82 PathProgramCache]: Analyzing trace with hash -796687323, now seen corresponding path program 1438 times [2021-06-05 03:50:57,143 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:57,143 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874559076] [2021-06-05 03:50:57,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:57,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:57,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:57,247 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:57,247 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874559076] [2021-06-05 03:50:57,247 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874559076] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:57,247 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:57,247 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:57,247 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442919770] [2021-06-05 03:50:57,247 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:57,247 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:57,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:57,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:57,247 INFO L87 Difference]: Start difference. First operand 5179 states and 24476 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:57,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:57,362 INFO L93 Difference]: Finished difference Result 10719 states and 48258 transitions. [2021-06-05 03:50:57,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:57,363 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:57,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:57,389 INFO L225 Difference]: With dead ends: 10719 [2021-06-05 03:50:57,389 INFO L226 Difference]: Without dead ends: 10208 [2021-06-05 03:50:57,389 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:57,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10208 states. [2021-06-05 03:50:57,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10208 to 5131. [2021-06-05 03:50:57,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.732163742690059) internal successors, (24276), 5130 states have internal predecessors, (24276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:57,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24276 transitions. [2021-06-05 03:50:57,613 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24276 transitions. Word has length 29 [2021-06-05 03:50:57,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:57,613 INFO L482 AbstractCegarLoop]: Abstraction has 5131 states and 24276 transitions. [2021-06-05 03:50:57,613 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:57,613 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24276 transitions. [2021-06-05 03:50:57,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:57,621 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:57,621 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:57,622 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1442 [2021-06-05 03:50:57,622 INFO L430 AbstractCegarLoop]: === Iteration 1444 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:57,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:57,622 INFO L82 PathProgramCache]: Analyzing trace with hash -1976035321, now seen corresponding path program 1439 times [2021-06-05 03:50:57,622 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:57,622 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125305024] [2021-06-05 03:50:57,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:57,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:57,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:57,727 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:57,727 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125305024] [2021-06-05 03:50:57,727 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125305024] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:57,727 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:57,727 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:57,727 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525986400] [2021-06-05 03:50:57,727 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:57,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:57,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:57,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:57,728 INFO L87 Difference]: Start difference. First operand 5131 states and 24276 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:57,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:57,845 INFO L93 Difference]: Finished difference Result 11075 states and 49631 transitions. [2021-06-05 03:50:57,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:57,845 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:57,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:57,872 INFO L225 Difference]: With dead ends: 11075 [2021-06-05 03:50:57,872 INFO L226 Difference]: Without dead ends: 10600 [2021-06-05 03:50:57,872 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 130.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:57,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10600 states. [2021-06-05 03:50:58,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10600 to 5203. [2021-06-05 03:50:58,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5203 states, 5202 states have (on average 4.719723183391004) internal successors, (24552), 5202 states have internal predecessors, (24552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:58,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5203 states to 5203 states and 24552 transitions. [2021-06-05 03:50:58,102 INFO L78 Accepts]: Start accepts. Automaton has 5203 states and 24552 transitions. Word has length 29 [2021-06-05 03:50:58,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:58,102 INFO L482 AbstractCegarLoop]: Abstraction has 5203 states and 24552 transitions. [2021-06-05 03:50:58,102 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:58,102 INFO L276 IsEmpty]: Start isEmpty. Operand 5203 states and 24552 transitions. [2021-06-05 03:50:58,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:58,111 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:58,111 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:58,111 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1443 [2021-06-05 03:50:58,111 INFO L430 AbstractCegarLoop]: === Iteration 1445 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:58,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:58,112 INFO L82 PathProgramCache]: Analyzing trace with hash 285919333, now seen corresponding path program 1440 times [2021-06-05 03:50:58,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:58,112 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572987933] [2021-06-05 03:50:58,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:58,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:58,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:58,216 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:58,216 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572987933] [2021-06-05 03:50:58,216 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572987933] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:58,216 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:58,216 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:58,217 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182254881] [2021-06-05 03:50:58,217 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:58,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:58,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:58,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:58,217 INFO L87 Difference]: Start difference. First operand 5203 states and 24552 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:58,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:58,332 INFO L93 Difference]: Finished difference Result 10743 states and 48334 transitions. [2021-06-05 03:50:58,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:58,333 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:58,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:58,359 INFO L225 Difference]: With dead ends: 10743 [2021-06-05 03:50:58,359 INFO L226 Difference]: Without dead ends: 10146 [2021-06-05 03:50:58,359 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 129.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:58,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10146 states. [2021-06-05 03:50:58,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10146 to 5069. [2021-06-05 03:50:58,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5069 states, 5068 states have (on average 4.7571033938437255) internal successors, (24109), 5068 states have internal predecessors, (24109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:58,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5069 states to 5069 states and 24109 transitions. [2021-06-05 03:50:58,581 INFO L78 Accepts]: Start accepts. Automaton has 5069 states and 24109 transitions. Word has length 29 [2021-06-05 03:50:58,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:58,582 INFO L482 AbstractCegarLoop]: Abstraction has 5069 states and 24109 transitions. [2021-06-05 03:50:58,582 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:58,582 INFO L276 IsEmpty]: Start isEmpty. Operand 5069 states and 24109 transitions. [2021-06-05 03:50:58,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:58,590 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:58,590 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:58,590 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1444 [2021-06-05 03:50:58,590 INFO L430 AbstractCegarLoop]: === Iteration 1446 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:58,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:58,591 INFO L82 PathProgramCache]: Analyzing trace with hash -1182482037, now seen corresponding path program 1441 times [2021-06-05 03:50:58,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:58,591 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075455045] [2021-06-05 03:50:58,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:58,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:58,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:58,719 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:58,719 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075455045] [2021-06-05 03:50:58,719 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075455045] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:58,719 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:58,719 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:58,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838430500] [2021-06-05 03:50:58,719 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:58,719 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:58,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:58,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:58,719 INFO L87 Difference]: Start difference. First operand 5069 states and 24109 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:58,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:58,880 INFO L93 Difference]: Finished difference Result 11838 states and 52902 transitions. [2021-06-05 03:50:58,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:58,881 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:58,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:58,910 INFO L225 Difference]: With dead ends: 11838 [2021-06-05 03:50:58,910 INFO L226 Difference]: Without dead ends: 11423 [2021-06-05 03:50:58,910 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 152.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:59,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11423 states. [2021-06-05 03:50:59,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11423 to 5241. [2021-06-05 03:50:59,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5241 states, 5240 states have (on average 4.74675572519084) internal successors, (24873), 5240 states have internal predecessors, (24873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:59,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5241 states to 5241 states and 24873 transitions. [2021-06-05 03:50:59,143 INFO L78 Accepts]: Start accepts. Automaton has 5241 states and 24873 transitions. Word has length 29 [2021-06-05 03:50:59,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:59,144 INFO L482 AbstractCegarLoop]: Abstraction has 5241 states and 24873 transitions. [2021-06-05 03:50:59,144 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:59,144 INFO L276 IsEmpty]: Start isEmpty. Operand 5241 states and 24873 transitions. [2021-06-05 03:50:59,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:59,153 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:59,153 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:59,153 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1445 [2021-06-05 03:50:59,153 INFO L430 AbstractCegarLoop]: === Iteration 1447 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:59,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:59,153 INFO L82 PathProgramCache]: Analyzing trace with hash 572338571, now seen corresponding path program 1442 times [2021-06-05 03:50:59,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:59,153 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554023545] [2021-06-05 03:50:59,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:59,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:59,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:59,279 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:59,279 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554023545] [2021-06-05 03:50:59,279 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554023545] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:59,279 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:59,279 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:59,279 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769178321] [2021-06-05 03:50:59,279 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:59,279 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:59,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:59,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:59,280 INFO L87 Difference]: Start difference. First operand 5241 states and 24873 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:59,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:59,389 INFO L93 Difference]: Finished difference Result 11965 states and 53381 transitions. [2021-06-05 03:50:59,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:59,389 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:59,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:59,418 INFO L225 Difference]: With dead ends: 11965 [2021-06-05 03:50:59,418 INFO L226 Difference]: Without dead ends: 11343 [2021-06-05 03:50:59,418 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 134.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:50:59,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11343 states. [2021-06-05 03:50:59,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11343 to 5161. [2021-06-05 03:50:59,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.750581395348838) internal successors, (24513), 5160 states have internal predecessors, (24513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:59,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24513 transitions. [2021-06-05 03:50:59,652 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24513 transitions. Word has length 29 [2021-06-05 03:50:59,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:50:59,652 INFO L482 AbstractCegarLoop]: Abstraction has 5161 states and 24513 transitions. [2021-06-05 03:50:59,652 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:59,652 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24513 transitions. [2021-06-05 03:50:59,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:50:59,661 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:50:59,661 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:50:59,661 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1446 [2021-06-05 03:50:59,661 INFO L430 AbstractCegarLoop]: === Iteration 1448 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:50:59,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:50:59,661 INFO L82 PathProgramCache]: Analyzing trace with hash -1402283893, now seen corresponding path program 1443 times [2021-06-05 03:50:59,661 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:50:59,661 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647336916] [2021-06-05 03:50:59,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:50:59,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:50:59,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:50:59,790 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:50:59,790 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647336916] [2021-06-05 03:50:59,790 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647336916] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:50:59,790 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:50:59,790 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:50:59,790 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219982531] [2021-06-05 03:50:59,790 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:50:59,790 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:50:59,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:50:59,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:50:59,790 INFO L87 Difference]: Start difference. First operand 5161 states and 24513 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:50:59,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:50:59,905 INFO L93 Difference]: Finished difference Result 11741 states and 52460 transitions. [2021-06-05 03:50:59,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:50:59,906 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:50:59,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:50:59,933 INFO L225 Difference]: With dead ends: 11741 [2021-06-05 03:50:59,934 INFO L226 Difference]: Without dead ends: 11326 [2021-06-05 03:50:59,934 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 153.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:00,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11326 states. [2021-06-05 03:51:00,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11326 to 5209. [2021-06-05 03:51:00,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5209 states, 5208 states have (on average 4.740591397849462) internal successors, (24689), 5208 states have internal predecessors, (24689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:00,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5209 states to 5209 states and 24689 transitions. [2021-06-05 03:51:00,167 INFO L78 Accepts]: Start accepts. Automaton has 5209 states and 24689 transitions. Word has length 29 [2021-06-05 03:51:00,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:00,167 INFO L482 AbstractCegarLoop]: Abstraction has 5209 states and 24689 transitions. [2021-06-05 03:51:00,167 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:00,167 INFO L276 IsEmpty]: Start isEmpty. Operand 5209 states and 24689 transitions. [2021-06-05 03:51:00,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:00,176 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:00,176 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:00,176 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1447 [2021-06-05 03:51:00,176 INFO L430 AbstractCegarLoop]: === Iteration 1449 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:00,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:00,176 INFO L82 PathProgramCache]: Analyzing trace with hash -685620947, now seen corresponding path program 1444 times [2021-06-05 03:51:00,176 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:00,176 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856334828] [2021-06-05 03:51:00,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:00,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:00,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:00,302 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:00,302 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856334828] [2021-06-05 03:51:00,302 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856334828] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:00,302 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:00,302 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:00,302 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670009911] [2021-06-05 03:51:00,302 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:00,302 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:00,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:00,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:00,302 INFO L87 Difference]: Start difference. First operand 5209 states and 24689 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:00,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:00,426 INFO L93 Difference]: Finished difference Result 11803 states and 52681 transitions. [2021-06-05 03:51:00,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:00,426 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:00,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:00,454 INFO L225 Difference]: With dead ends: 11803 [2021-06-05 03:51:00,454 INFO L226 Difference]: Without dead ends: 11278 [2021-06-05 03:51:00,454 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 150.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:00,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11278 states. [2021-06-05 03:51:00,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11278 to 5161. [2021-06-05 03:51:00,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.745930232558139) internal successors, (24489), 5160 states have internal predecessors, (24489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:00,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24489 transitions. [2021-06-05 03:51:00,684 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24489 transitions. Word has length 29 [2021-06-05 03:51:00,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:00,684 INFO L482 AbstractCegarLoop]: Abstraction has 5161 states and 24489 transitions. [2021-06-05 03:51:00,684 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:00,684 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24489 transitions. [2021-06-05 03:51:00,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:00,693 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:00,693 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:00,693 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1448 [2021-06-05 03:51:00,693 INFO L430 AbstractCegarLoop]: === Iteration 1450 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:00,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:00,693 INFO L82 PathProgramCache]: Analyzing trace with hash 1397604653, now seen corresponding path program 1445 times [2021-06-05 03:51:00,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:00,693 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176619116] [2021-06-05 03:51:00,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:00,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:00,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:00,813 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:00,813 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176619116] [2021-06-05 03:51:00,813 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176619116] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:00,814 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:00,814 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:00,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206932326] [2021-06-05 03:51:00,814 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:00,814 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:00,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:00,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:00,814 INFO L87 Difference]: Start difference. First operand 5161 states and 24489 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:00,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:00,918 INFO L93 Difference]: Finished difference Result 12090 states and 53896 transitions. [2021-06-05 03:51:00,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:00,918 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:00,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:00,949 INFO L225 Difference]: With dead ends: 12090 [2021-06-05 03:51:00,949 INFO L226 Difference]: Without dead ends: 11548 [2021-06-05 03:51:00,949 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 127.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:01,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11548 states. [2021-06-05 03:51:01,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11548 to 5304. [2021-06-05 03:51:01,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5304 states, 5303 states have (on average 4.71582123326419) internal successors, (25008), 5303 states have internal predecessors, (25008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:01,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5304 states to 5304 states and 25008 transitions. [2021-06-05 03:51:01,181 INFO L78 Accepts]: Start accepts. Automaton has 5304 states and 25008 transitions. Word has length 29 [2021-06-05 03:51:01,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:01,181 INFO L482 AbstractCegarLoop]: Abstraction has 5304 states and 25008 transitions. [2021-06-05 03:51:01,181 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:01,181 INFO L276 IsEmpty]: Start isEmpty. Operand 5304 states and 25008 transitions. [2021-06-05 03:51:01,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:01,190 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:01,190 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:01,190 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1449 [2021-06-05 03:51:01,190 INFO L430 AbstractCegarLoop]: === Iteration 1451 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:01,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:01,190 INFO L82 PathProgramCache]: Analyzing trace with hash -645732341, now seen corresponding path program 1446 times [2021-06-05 03:51:01,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:01,190 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140876905] [2021-06-05 03:51:01,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:01,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:01,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:01,310 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:01,310 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140876905] [2021-06-05 03:51:01,310 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140876905] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:01,310 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:01,310 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:01,311 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496343089] [2021-06-05 03:51:01,311 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:01,311 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:01,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:01,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:01,311 INFO L87 Difference]: Start difference. First operand 5304 states and 25008 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:01,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:01,441 INFO L93 Difference]: Finished difference Result 12025 states and 53527 transitions. [2021-06-05 03:51:01,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:01,441 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:01,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:01,469 INFO L225 Difference]: With dead ends: 12025 [2021-06-05 03:51:01,469 INFO L226 Difference]: Without dead ends: 11349 [2021-06-05 03:51:01,469 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 145.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:01,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11349 states. [2021-06-05 03:51:01,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11349 to 5105. [2021-06-05 03:51:01,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5105 states, 5104 states have (on average 4.752547021943574) internal successors, (24257), 5104 states have internal predecessors, (24257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:01,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 24257 transitions. [2021-06-05 03:51:01,695 INFO L78 Accepts]: Start accepts. Automaton has 5105 states and 24257 transitions. Word has length 29 [2021-06-05 03:51:01,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:01,696 INFO L482 AbstractCegarLoop]: Abstraction has 5105 states and 24257 transitions. [2021-06-05 03:51:01,696 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:01,696 INFO L276 IsEmpty]: Start isEmpty. Operand 5105 states and 24257 transitions. [2021-06-05 03:51:01,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:01,704 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:01,704 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:01,704 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1450 [2021-06-05 03:51:01,704 INFO L430 AbstractCegarLoop]: === Iteration 1452 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:01,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:01,704 INFO L82 PathProgramCache]: Analyzing trace with hash 1022391819, now seen corresponding path program 1447 times [2021-06-05 03:51:01,704 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:01,704 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92298777] [2021-06-05 03:51:01,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:01,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:01,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:01,834 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:01,834 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92298777] [2021-06-05 03:51:01,834 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92298777] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:01,834 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:01,834 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:01,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050554363] [2021-06-05 03:51:01,834 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:01,834 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:01,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:01,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:01,835 INFO L87 Difference]: Start difference. First operand 5105 states and 24257 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:01,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:01,960 INFO L93 Difference]: Finished difference Result 11787 states and 52690 transitions. [2021-06-05 03:51:01,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:01,960 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:01,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:01,987 INFO L225 Difference]: With dead ends: 11787 [2021-06-05 03:51:01,987 INFO L226 Difference]: Without dead ends: 11372 [2021-06-05 03:51:01,987 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 153.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:02,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11372 states. [2021-06-05 03:51:02,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11372 to 5225. [2021-06-05 03:51:02,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5225 states, 5224 states have (on average 4.7436830015313936) internal successors, (24781), 5224 states have internal predecessors, (24781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:02,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5225 states to 5225 states and 24781 transitions. [2021-06-05 03:51:02,215 INFO L78 Accepts]: Start accepts. Automaton has 5225 states and 24781 transitions. Word has length 29 [2021-06-05 03:51:02,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:02,215 INFO L482 AbstractCegarLoop]: Abstraction has 5225 states and 24781 transitions. [2021-06-05 03:51:02,215 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:02,215 INFO L276 IsEmpty]: Start isEmpty. Operand 5225 states and 24781 transitions. [2021-06-05 03:51:02,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:02,224 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:02,224 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:02,224 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1451 [2021-06-05 03:51:02,224 INFO L430 AbstractCegarLoop]: === Iteration 1453 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:02,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:02,224 INFO L82 PathProgramCache]: Analyzing trace with hash -1517754869, now seen corresponding path program 1448 times [2021-06-05 03:51:02,224 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:02,224 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351057330] [2021-06-05 03:51:02,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:02,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:02,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:02,356 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:02,356 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351057330] [2021-06-05 03:51:02,356 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351057330] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:02,356 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:02,356 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:02,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818395221] [2021-06-05 03:51:02,357 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:02,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:02,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:02,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:02,357 INFO L87 Difference]: Start difference. First operand 5225 states and 24781 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:02,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:02,469 INFO L93 Difference]: Finished difference Result 11914 states and 53169 transitions. [2021-06-05 03:51:02,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:02,469 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:02,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:02,498 INFO L225 Difference]: With dead ends: 11914 [2021-06-05 03:51:02,498 INFO L226 Difference]: Without dead ends: 11292 [2021-06-05 03:51:02,498 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 140.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:02,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11292 states. [2021-06-05 03:51:02,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11292 to 5145. [2021-06-05 03:51:02,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5145 states, 5144 states have (on average 4.747472783825817) internal successors, (24421), 5144 states have internal predecessors, (24421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:02,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5145 states to 5145 states and 24421 transitions. [2021-06-05 03:51:02,729 INFO L78 Accepts]: Start accepts. Automaton has 5145 states and 24421 transitions. Word has length 29 [2021-06-05 03:51:02,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:02,729 INFO L482 AbstractCegarLoop]: Abstraction has 5145 states and 24421 transitions. [2021-06-05 03:51:02,729 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:02,729 INFO L276 IsEmpty]: Start isEmpty. Operand 5145 states and 24421 transitions. [2021-06-05 03:51:02,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:02,738 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:02,738 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:02,738 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1452 [2021-06-05 03:51:02,738 INFO L430 AbstractCegarLoop]: === Iteration 1454 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:02,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:02,738 INFO L82 PathProgramCache]: Analyzing trace with hash -865111639, now seen corresponding path program 1449 times [2021-06-05 03:51:02,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:02,738 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054737626] [2021-06-05 03:51:02,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:02,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:02,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:02,870 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:02,870 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054737626] [2021-06-05 03:51:02,870 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054737626] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:02,870 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:02,870 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:02,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258407253] [2021-06-05 03:51:02,870 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:02,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:02,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:02,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:02,871 INFO L87 Difference]: Start difference. First operand 5145 states and 24421 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:02,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:02,983 INFO L93 Difference]: Finished difference Result 11688 states and 52243 transitions. [2021-06-05 03:51:02,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:02,983 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:02,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:03,010 INFO L225 Difference]: With dead ends: 11688 [2021-06-05 03:51:03,010 INFO L226 Difference]: Without dead ends: 11273 [2021-06-05 03:51:03,011 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 157.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:03,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11273 states. [2021-06-05 03:51:03,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11273 to 5193. [2021-06-05 03:51:03,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5193 states, 5192 states have (on average 4.737480739599384) internal successors, (24597), 5192 states have internal predecessors, (24597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:03,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5193 states to 5193 states and 24597 transitions. [2021-06-05 03:51:03,242 INFO L78 Accepts]: Start accepts. Automaton has 5193 states and 24597 transitions. Word has length 29 [2021-06-05 03:51:03,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:03,242 INFO L482 AbstractCegarLoop]: Abstraction has 5193 states and 24597 transitions. [2021-06-05 03:51:03,242 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:03,242 INFO L276 IsEmpty]: Start isEmpty. Operand 5193 states and 24597 transitions. [2021-06-05 03:51:03,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:03,251 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:03,251 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:03,251 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1453 [2021-06-05 03:51:03,251 INFO L430 AbstractCegarLoop]: === Iteration 1455 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:03,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:03,251 INFO L82 PathProgramCache]: Analyzing trace with hash -1379792565, now seen corresponding path program 1450 times [2021-06-05 03:51:03,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:03,251 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161241464] [2021-06-05 03:51:03,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:03,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:03,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:03,388 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:03,388 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161241464] [2021-06-05 03:51:03,388 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161241464] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:03,388 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:03,388 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:03,388 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026004445] [2021-06-05 03:51:03,388 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:03,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:03,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:03,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:03,389 INFO L87 Difference]: Start difference. First operand 5193 states and 24597 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:03,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:03,506 INFO L93 Difference]: Finished difference Result 11748 states and 52459 transitions. [2021-06-05 03:51:03,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:03,506 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:03,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:03,533 INFO L225 Difference]: With dead ends: 11748 [2021-06-05 03:51:03,533 INFO L226 Difference]: Without dead ends: 11225 [2021-06-05 03:51:03,533 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 161.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:03,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11225 states. [2021-06-05 03:51:03,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11225 to 5145. [2021-06-05 03:51:03,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5145 states, 5144 states have (on average 4.742807153965785) internal successors, (24397), 5144 states have internal predecessors, (24397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:03,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5145 states to 5145 states and 24397 transitions. [2021-06-05 03:51:03,765 INFO L78 Accepts]: Start accepts. Automaton has 5145 states and 24397 transitions. Word has length 29 [2021-06-05 03:51:03,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:03,766 INFO L482 AbstractCegarLoop]: Abstraction has 5145 states and 24397 transitions. [2021-06-05 03:51:03,766 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:03,766 INFO L276 IsEmpty]: Start isEmpty. Operand 5145 states and 24397 transitions. [2021-06-05 03:51:03,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:03,774 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:03,774 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:03,774 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1454 [2021-06-05 03:51:03,774 INFO L430 AbstractCegarLoop]: === Iteration 1456 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:03,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:03,775 INFO L82 PathProgramCache]: Analyzing trace with hash -640964277, now seen corresponding path program 1451 times [2021-06-05 03:51:03,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:03,775 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028086708] [2021-06-05 03:51:03,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:03,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:03,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:03,898 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:03,898 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028086708] [2021-06-05 03:51:03,898 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028086708] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:03,898 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:03,898 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:03,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319842115] [2021-06-05 03:51:03,898 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:03,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:03,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:03,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:03,898 INFO L87 Difference]: Start difference. First operand 5145 states and 24397 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:03,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:03,994 INFO L93 Difference]: Finished difference Result 12004 states and 53564 transitions. [2021-06-05 03:51:03,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:03,994 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:03,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:04,022 INFO L225 Difference]: With dead ends: 12004 [2021-06-05 03:51:04,022 INFO L226 Difference]: Without dead ends: 11462 [2021-06-05 03:51:04,022 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 131.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:04,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11462 states. [2021-06-05 03:51:04,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11462 to 5255. [2021-06-05 03:51:04,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5255 states, 5254 states have (on average 4.72059383326989) internal successors, (24802), 5254 states have internal predecessors, (24802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:04,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5255 states to 5255 states and 24802 transitions. [2021-06-05 03:51:04,256 INFO L78 Accepts]: Start accepts. Automaton has 5255 states and 24802 transitions. Word has length 29 [2021-06-05 03:51:04,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:04,256 INFO L482 AbstractCegarLoop]: Abstraction has 5255 states and 24802 transitions. [2021-06-05 03:51:04,256 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:04,256 INFO L276 IsEmpty]: Start isEmpty. Operand 5255 states and 24802 transitions. [2021-06-05 03:51:04,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:04,265 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:04,265 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:04,265 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1455 [2021-06-05 03:51:04,265 INFO L430 AbstractCegarLoop]: === Iteration 1457 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:04,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:04,265 INFO L82 PathProgramCache]: Analyzing trace with hash -1381916375, now seen corresponding path program 1452 times [2021-06-05 03:51:04,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:04,266 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463572843] [2021-06-05 03:51:04,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:04,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:04,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:04,387 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:04,387 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463572843] [2021-06-05 03:51:04,387 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463572843] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:04,387 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:04,387 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:04,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369839491] [2021-06-05 03:51:04,388 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:04,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:04,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:04,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:04,388 INFO L87 Difference]: Start difference. First operand 5255 states and 24802 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:04,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:04,516 INFO L93 Difference]: Finished difference Result 11937 states and 53191 transitions. [2021-06-05 03:51:04,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:04,516 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:04,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:04,545 INFO L225 Difference]: With dead ends: 11937 [2021-06-05 03:51:04,545 INFO L226 Difference]: Without dead ends: 11312 [2021-06-05 03:51:04,545 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 146.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:04,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11312 states. [2021-06-05 03:51:04,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11312 to 5105. [2021-06-05 03:51:04,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5105 states, 5104 states have (on average 4.748628526645768) internal successors, (24237), 5104 states have internal predecessors, (24237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:04,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 24237 transitions. [2021-06-05 03:51:04,781 INFO L78 Accepts]: Start accepts. Automaton has 5105 states and 24237 transitions. Word has length 29 [2021-06-05 03:51:04,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:04,781 INFO L482 AbstractCegarLoop]: Abstraction has 5105 states and 24237 transitions. [2021-06-05 03:51:04,781 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:04,781 INFO L276 IsEmpty]: Start isEmpty. Operand 5105 states and 24237 transitions. [2021-06-05 03:51:04,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:04,789 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:04,789 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:04,790 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1456 [2021-06-05 03:51:04,790 INFO L430 AbstractCegarLoop]: === Iteration 1458 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:04,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:04,790 INFO L82 PathProgramCache]: Analyzing trace with hash -2011584343, now seen corresponding path program 1453 times [2021-06-05 03:51:04,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:04,790 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474713384] [2021-06-05 03:51:04,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:04,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:04,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:04,921 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:04,921 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474713384] [2021-06-05 03:51:04,921 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474713384] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:04,921 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:04,921 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:04,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294447111] [2021-06-05 03:51:04,921 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:04,921 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:04,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:04,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:04,921 INFO L87 Difference]: Start difference. First operand 5105 states and 24237 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:05,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:05,035 INFO L93 Difference]: Finished difference Result 11545 states and 51642 transitions. [2021-06-05 03:51:05,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:05,035 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:05,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:05,062 INFO L225 Difference]: With dead ends: 11545 [2021-06-05 03:51:05,062 INFO L226 Difference]: Without dead ends: 11130 [2021-06-05 03:51:05,062 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 155.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:05,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11130 states. [2021-06-05 03:51:05,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11130 to 5177. [2021-06-05 03:51:05,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5177 states, 5176 states have (on average 4.740533230293663) internal successors, (24537), 5176 states have internal predecessors, (24537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:05,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5177 states to 5177 states and 24537 transitions. [2021-06-05 03:51:05,291 INFO L78 Accepts]: Start accepts. Automaton has 5177 states and 24537 transitions. Word has length 29 [2021-06-05 03:51:05,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:05,291 INFO L482 AbstractCegarLoop]: Abstraction has 5177 states and 24537 transitions. [2021-06-05 03:51:05,291 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:05,291 INFO L276 IsEmpty]: Start isEmpty. Operand 5177 states and 24537 transitions. [2021-06-05 03:51:05,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:05,300 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:05,300 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:05,300 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1457 [2021-06-05 03:51:05,300 INFO L430 AbstractCegarLoop]: === Iteration 1459 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:05,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:05,300 INFO L82 PathProgramCache]: Analyzing trace with hash -1294921397, now seen corresponding path program 1454 times [2021-06-05 03:51:05,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:05,300 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083918421] [2021-06-05 03:51:05,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:05,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:05,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:05,433 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:05,433 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083918421] [2021-06-05 03:51:05,433 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083918421] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:05,433 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:05,433 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:05,433 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621846707] [2021-06-05 03:51:05,433 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:05,433 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:05,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:05,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:05,433 INFO L87 Difference]: Start difference. First operand 5177 states and 24537 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:05,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:05,548 INFO L93 Difference]: Finished difference Result 11607 states and 51863 transitions. [2021-06-05 03:51:05,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:05,548 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:05,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:05,575 INFO L225 Difference]: With dead ends: 11607 [2021-06-05 03:51:05,576 INFO L226 Difference]: Without dead ends: 11082 [2021-06-05 03:51:05,576 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 158.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:05,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11082 states. [2021-06-05 03:51:05,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11082 to 5129. [2021-06-05 03:51:05,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5129 states, 5128 states have (on average 4.745904836193448) internal successors, (24337), 5128 states have internal predecessors, (24337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:05,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5129 states to 5129 states and 24337 transitions. [2021-06-05 03:51:05,804 INFO L78 Accepts]: Start accepts. Automaton has 5129 states and 24337 transitions. Word has length 29 [2021-06-05 03:51:05,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:05,804 INFO L482 AbstractCegarLoop]: Abstraction has 5129 states and 24337 transitions. [2021-06-05 03:51:05,804 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:05,804 INFO L276 IsEmpty]: Start isEmpty. Operand 5129 states and 24337 transitions. [2021-06-05 03:51:05,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:05,812 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:05,812 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:05,813 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1458 [2021-06-05 03:51:05,813 INFO L430 AbstractCegarLoop]: === Iteration 1460 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:05,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:05,813 INFO L82 PathProgramCache]: Analyzing trace with hash 1109423243, now seen corresponding path program 1455 times [2021-06-05 03:51:05,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:05,813 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566162081] [2021-06-05 03:51:05,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:05,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:05,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:05,948 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:05,948 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566162081] [2021-06-05 03:51:05,948 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566162081] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:05,948 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:05,948 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:05,948 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502950651] [2021-06-05 03:51:05,948 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:05,948 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:05,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:05,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:05,949 INFO L87 Difference]: Start difference. First operand 5129 states and 24337 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:06,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:06,061 INFO L93 Difference]: Finished difference Result 11543 states and 51613 transitions. [2021-06-05 03:51:06,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:06,061 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:06,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:06,089 INFO L225 Difference]: With dead ends: 11543 [2021-06-05 03:51:06,089 INFO L226 Difference]: Without dead ends: 11128 [2021-06-05 03:51:06,090 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 160.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:06,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11128 states. [2021-06-05 03:51:06,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11128 to 5177. [2021-06-05 03:51:06,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5177 states, 5176 states have (on average 4.735896445131376) internal successors, (24513), 5176 states have internal predecessors, (24513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:06,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5177 states to 5177 states and 24513 transitions. [2021-06-05 03:51:06,321 INFO L78 Accepts]: Start accepts. Automaton has 5177 states and 24513 transitions. Word has length 29 [2021-06-05 03:51:06,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:06,322 INFO L482 AbstractCegarLoop]: Abstraction has 5177 states and 24513 transitions. [2021-06-05 03:51:06,322 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:06,322 INFO L276 IsEmpty]: Start isEmpty. Operand 5177 states and 24513 transitions. [2021-06-05 03:51:06,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:06,330 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:06,330 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:06,330 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1459 [2021-06-05 03:51:06,330 INFO L430 AbstractCegarLoop]: === Iteration 1461 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:06,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:06,331 INFO L82 PathProgramCache]: Analyzing trace with hash 2138988619, now seen corresponding path program 1456 times [2021-06-05 03:51:06,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:06,331 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191100031] [2021-06-05 03:51:06,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:06,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:06,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:06,467 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:06,467 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191100031] [2021-06-05 03:51:06,467 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191100031] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:06,467 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:06,467 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:06,468 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211691114] [2021-06-05 03:51:06,468 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:06,468 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:06,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:06,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:06,468 INFO L87 Difference]: Start difference. First operand 5177 states and 24513 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:06,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:06,582 INFO L93 Difference]: Finished difference Result 11603 states and 51829 transitions. [2021-06-05 03:51:06,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:06,582 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:06,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:06,609 INFO L225 Difference]: With dead ends: 11603 [2021-06-05 03:51:06,609 INFO L226 Difference]: Without dead ends: 11080 [2021-06-05 03:51:06,609 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 161.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:06,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11080 states. [2021-06-05 03:51:06,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11080 to 5129. [2021-06-05 03:51:06,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5129 states, 5128 states have (on average 4.741224648985959) internal successors, (24313), 5128 states have internal predecessors, (24313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:06,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5129 states to 5129 states and 24313 transitions. [2021-06-05 03:51:06,842 INFO L78 Accepts]: Start accepts. Automaton has 5129 states and 24313 transitions. Word has length 29 [2021-06-05 03:51:06,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:06,842 INFO L482 AbstractCegarLoop]: Abstraction has 5129 states and 24313 transitions. [2021-06-05 03:51:06,842 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:06,842 INFO L276 IsEmpty]: Start isEmpty. Operand 5129 states and 24313 transitions. [2021-06-05 03:51:06,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:06,850 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:06,850 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:06,850 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1460 [2021-06-05 03:51:06,850 INFO L430 AbstractCegarLoop]: === Iteration 1462 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:06,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:06,851 INFO L82 PathProgramCache]: Analyzing trace with hash -1982052243, now seen corresponding path program 1457 times [2021-06-05 03:51:06,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:06,851 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140849736] [2021-06-05 03:51:06,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:06,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:06,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:06,975 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:06,975 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140849736] [2021-06-05 03:51:06,975 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140849736] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:06,975 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:06,975 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:06,975 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595920886] [2021-06-05 03:51:06,976 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:06,976 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:06,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:06,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:06,976 INFO L87 Difference]: Start difference. First operand 5129 states and 24313 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:07,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:07,092 INFO L93 Difference]: Finished difference Result 11697 states and 52274 transitions. [2021-06-05 03:51:07,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:07,092 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:07,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:07,120 INFO L225 Difference]: With dead ends: 11697 [2021-06-05 03:51:07,120 INFO L226 Difference]: Without dead ends: 11220 [2021-06-05 03:51:07,121 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 150.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:07,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11220 states. [2021-06-05 03:51:07,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11220 to 5207. [2021-06-05 03:51:07,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5207 states, 5206 states have (on average 4.726469458317326) internal successors, (24606), 5206 states have internal predecessors, (24606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:07,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5207 states to 5207 states and 24606 transitions. [2021-06-05 03:51:07,363 INFO L78 Accepts]: Start accepts. Automaton has 5207 states and 24606 transitions. Word has length 29 [2021-06-05 03:51:07,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:07,363 INFO L482 AbstractCegarLoop]: Abstraction has 5207 states and 24606 transitions. [2021-06-05 03:51:07,363 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:07,363 INFO L276 IsEmpty]: Start isEmpty. Operand 5207 states and 24606 transitions. [2021-06-05 03:51:07,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:07,373 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:07,373 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:07,373 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1461 [2021-06-05 03:51:07,373 INFO L430 AbstractCegarLoop]: === Iteration 1463 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:07,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:07,373 INFO L82 PathProgramCache]: Analyzing trace with hash 920770507, now seen corresponding path program 1458 times [2021-06-05 03:51:07,373 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:07,374 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068600536] [2021-06-05 03:51:07,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:07,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:07,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:07,504 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:07,504 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068600536] [2021-06-05 03:51:07,504 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068600536] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:07,504 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:07,504 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:07,504 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308219889] [2021-06-05 03:51:07,505 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:07,505 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:07,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:07,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:07,505 INFO L87 Difference]: Start difference. First operand 5207 states and 24606 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:07,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:07,629 INFO L93 Difference]: Finished difference Result 11695 states and 52191 transitions. [2021-06-05 03:51:07,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:07,630 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:07,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:07,657 INFO L225 Difference]: With dead ends: 11695 [2021-06-05 03:51:07,657 INFO L226 Difference]: Without dead ends: 11118 [2021-06-05 03:51:07,657 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 151.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:07,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11118 states. [2021-06-05 03:51:07,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11118 to 5105. [2021-06-05 03:51:07,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5105 states, 5104 states have (on average 4.746277429467084) internal successors, (24225), 5104 states have internal predecessors, (24225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:07,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 24225 transitions. [2021-06-05 03:51:07,889 INFO L78 Accepts]: Start accepts. Automaton has 5105 states and 24225 transitions. Word has length 29 [2021-06-05 03:51:07,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:07,889 INFO L482 AbstractCegarLoop]: Abstraction has 5105 states and 24225 transitions. [2021-06-05 03:51:07,889 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:07,889 INFO L276 IsEmpty]: Start isEmpty. Operand 5105 states and 24225 transitions. [2021-06-05 03:51:07,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:07,898 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:07,898 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:07,898 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1462 [2021-06-05 03:51:07,898 INFO L430 AbstractCegarLoop]: === Iteration 1464 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:07,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:07,898 INFO L82 PathProgramCache]: Analyzing trace with hash -1309869971, now seen corresponding path program 1459 times [2021-06-05 03:51:07,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:07,898 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204632890] [2021-06-05 03:51:07,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:07,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:08,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:08,015 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:08,015 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204632890] [2021-06-05 03:51:08,015 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204632890] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:08,015 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:08,015 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:08,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31245524] [2021-06-05 03:51:08,015 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:08,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:08,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:08,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:08,016 INFO L87 Difference]: Start difference. First operand 5105 states and 24225 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:08,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:08,129 INFO L93 Difference]: Finished difference Result 12241 states and 54587 transitions. [2021-06-05 03:51:08,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:08,129 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:08,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:08,158 INFO L225 Difference]: With dead ends: 12241 [2021-06-05 03:51:08,158 INFO L226 Difference]: Without dead ends: 11699 [2021-06-05 03:51:08,158 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 125.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:08,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11699 states. [2021-06-05 03:51:08,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11699 to 5335. [2021-06-05 03:51:08,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 4.713348331458568) internal successors, (25141), 5334 states have internal predecessors, (25141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:08,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 25141 transitions. [2021-06-05 03:51:08,435 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 25141 transitions. Word has length 29 [2021-06-05 03:51:08,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:08,435 INFO L482 AbstractCegarLoop]: Abstraction has 5335 states and 25141 transitions. [2021-06-05 03:51:08,435 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:08,435 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 25141 transitions. [2021-06-05 03:51:08,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:08,444 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:08,444 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:08,444 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1463 [2021-06-05 03:51:08,444 INFO L430 AbstractCegarLoop]: === Iteration 1465 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:08,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:08,444 INFO L82 PathProgramCache]: Analyzing trace with hash 941760331, now seen corresponding path program 1460 times [2021-06-05 03:51:08,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:08,444 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35040980] [2021-06-05 03:51:08,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:08,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:08,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:08,557 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:08,557 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35040980] [2021-06-05 03:51:08,557 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35040980] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:08,557 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:08,557 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:08,558 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974587559] [2021-06-05 03:51:08,558 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:08,558 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:08,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:08,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:08,558 INFO L87 Difference]: Start difference. First operand 5335 states and 25141 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:08,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:08,676 INFO L93 Difference]: Finished difference Result 12176 states and 54218 transitions. [2021-06-05 03:51:08,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:08,676 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:08,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:08,706 INFO L225 Difference]: With dead ends: 12176 [2021-06-05 03:51:08,706 INFO L226 Difference]: Without dead ends: 11556 [2021-06-05 03:51:08,706 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 137.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:08,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11556 states. [2021-06-05 03:51:08,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11556 to 5192. [2021-06-05 03:51:08,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5192 states, 5191 states have (on average 4.7295318821036405) internal successors, (24551), 5191 states have internal predecessors, (24551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:08,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5192 states to 5192 states and 24551 transitions. [2021-06-05 03:51:08,944 INFO L78 Accepts]: Start accepts. Automaton has 5192 states and 24551 transitions. Word has length 29 [2021-06-05 03:51:08,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:08,944 INFO L482 AbstractCegarLoop]: Abstraction has 5192 states and 24551 transitions. [2021-06-05 03:51:08,944 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:08,944 INFO L276 IsEmpty]: Start isEmpty. Operand 5192 states and 24551 transitions. [2021-06-05 03:51:08,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:08,953 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:08,953 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:08,953 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1464 [2021-06-05 03:51:08,953 INFO L430 AbstractCegarLoop]: === Iteration 1466 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:08,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:08,953 INFO L82 PathProgramCache]: Analyzing trace with hash 869017675, now seen corresponding path program 1461 times [2021-06-05 03:51:08,954 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:08,954 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559198617] [2021-06-05 03:51:08,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:08,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:09,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:09,066 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:09,067 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559198617] [2021-06-05 03:51:09,067 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559198617] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:09,067 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:09,067 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:09,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843415419] [2021-06-05 03:51:09,067 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:09,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:09,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:09,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:09,067 INFO L87 Difference]: Start difference. First operand 5192 states and 24551 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:09,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:09,162 INFO L93 Difference]: Finished difference Result 12206 states and 54396 transitions. [2021-06-05 03:51:09,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:09,162 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:09,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:09,191 INFO L225 Difference]: With dead ends: 12206 [2021-06-05 03:51:09,191 INFO L226 Difference]: Without dead ends: 11664 [2021-06-05 03:51:09,191 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 120.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:09,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11664 states. [2021-06-05 03:51:09,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11664 to 5302. [2021-06-05 03:51:09,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5301 states have (on average 4.707790982833427) internal successors, (24956), 5301 states have internal predecessors, (24956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:09,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 24956 transitions. [2021-06-05 03:51:09,427 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 24956 transitions. Word has length 29 [2021-06-05 03:51:09,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:09,427 INFO L482 AbstractCegarLoop]: Abstraction has 5302 states and 24956 transitions. [2021-06-05 03:51:09,427 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:09,427 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 24956 transitions. [2021-06-05 03:51:09,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:09,436 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:09,436 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:09,436 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1465 [2021-06-05 03:51:09,436 INFO L430 AbstractCegarLoop]: === Iteration 1467 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:09,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:09,436 INFO L82 PathProgramCache]: Analyzing trace with hash 1424805963, now seen corresponding path program 1462 times [2021-06-05 03:51:09,436 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:09,436 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783612168] [2021-06-05 03:51:09,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:09,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:09,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:09,550 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:09,550 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783612168] [2021-06-05 03:51:09,550 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783612168] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:09,550 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:09,550 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:09,550 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721973797] [2021-06-05 03:51:09,550 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:09,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:09,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:09,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:09,550 INFO L87 Difference]: Start difference. First operand 5302 states and 24956 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:09,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:09,669 INFO L93 Difference]: Finished difference Result 12139 states and 54023 transitions. [2021-06-05 03:51:09,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:09,669 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:09,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:09,698 INFO L225 Difference]: With dead ends: 12139 [2021-06-05 03:51:09,698 INFO L226 Difference]: Without dead ends: 11554 [2021-06-05 03:51:09,699 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 138.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:09,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11554 states. [2021-06-05 03:51:09,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11554 to 5192. [2021-06-05 03:51:09,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5192 states, 5191 states have (on average 4.7189366210749375) internal successors, (24496), 5191 states have internal predecessors, (24496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:09,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5192 states to 5192 states and 24496 transitions. [2021-06-05 03:51:09,931 INFO L78 Accepts]: Start accepts. Automaton has 5192 states and 24496 transitions. Word has length 29 [2021-06-05 03:51:09,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:09,931 INFO L482 AbstractCegarLoop]: Abstraction has 5192 states and 24496 transitions. [2021-06-05 03:51:09,932 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:09,932 INFO L276 IsEmpty]: Start isEmpty. Operand 5192 states and 24496 transitions. [2021-06-05 03:51:09,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:09,940 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:09,940 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:09,940 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1466 [2021-06-05 03:51:09,940 INFO L430 AbstractCegarLoop]: === Iteration 1468 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:09,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:09,940 INFO L82 PathProgramCache]: Analyzing trace with hash 1851365289, now seen corresponding path program 1463 times [2021-06-05 03:51:09,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:09,940 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810081766] [2021-06-05 03:51:09,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:09,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:10,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:10,051 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:10,051 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810081766] [2021-06-05 03:51:10,051 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810081766] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:10,051 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:10,051 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:10,051 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138454308] [2021-06-05 03:51:10,051 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:10,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:10,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:10,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:10,052 INFO L87 Difference]: Start difference. First operand 5192 states and 24496 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:10,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:10,168 INFO L93 Difference]: Finished difference Result 12044 states and 53681 transitions. [2021-06-05 03:51:10,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:10,169 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:10,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:10,198 INFO L225 Difference]: With dead ends: 12044 [2021-06-05 03:51:10,198 INFO L226 Difference]: Without dead ends: 11567 [2021-06-05 03:51:10,198 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 135.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:10,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11567 states. [2021-06-05 03:51:10,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11567 to 5270. [2021-06-05 03:51:10,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5270 states, 5269 states have (on average 4.7046877965458345) internal successors, (24789), 5269 states have internal predecessors, (24789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:10,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5270 states to 5270 states and 24789 transitions. [2021-06-05 03:51:10,436 INFO L78 Accepts]: Start accepts. Automaton has 5270 states and 24789 transitions. Word has length 29 [2021-06-05 03:51:10,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:10,436 INFO L482 AbstractCegarLoop]: Abstraction has 5270 states and 24789 transitions. [2021-06-05 03:51:10,436 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:10,437 INFO L276 IsEmpty]: Start isEmpty. Operand 5270 states and 24789 transitions. [2021-06-05 03:51:10,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:10,445 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:10,445 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:10,445 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1467 [2021-06-05 03:51:10,445 INFO L430 AbstractCegarLoop]: === Iteration 1469 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:10,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:10,446 INFO L82 PathProgramCache]: Analyzing trace with hash 1644557323, now seen corresponding path program 1464 times [2021-06-05 03:51:10,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:10,446 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261687093] [2021-06-05 03:51:10,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:10,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:10,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:10,559 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:10,559 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261687093] [2021-06-05 03:51:10,559 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261687093] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:10,559 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:10,559 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:10,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772058087] [2021-06-05 03:51:10,559 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:10,559 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:10,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:10,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:10,559 INFO L87 Difference]: Start difference. First operand 5270 states and 24789 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:10,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:10,682 INFO L93 Difference]: Finished difference Result 12042 states and 53598 transitions. [2021-06-05 03:51:10,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:10,683 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:10,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:10,710 INFO L225 Difference]: With dead ends: 12042 [2021-06-05 03:51:10,710 INFO L226 Difference]: Without dead ends: 11366 [2021-06-05 03:51:10,710 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 137.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:10,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11366 states. [2021-06-05 03:51:10,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11366 to 5069. [2021-06-05 03:51:10,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5069 states, 5068 states have (on average 4.753551696921862) internal successors, (24091), 5068 states have internal predecessors, (24091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:10,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5069 states to 5069 states and 24091 transitions. [2021-06-05 03:51:10,940 INFO L78 Accepts]: Start accepts. Automaton has 5069 states and 24091 transitions. Word has length 29 [2021-06-05 03:51:10,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:10,940 INFO L482 AbstractCegarLoop]: Abstraction has 5069 states and 24091 transitions. [2021-06-05 03:51:10,940 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:10,940 INFO L276 IsEmpty]: Start isEmpty. Operand 5069 states and 24091 transitions. [2021-06-05 03:51:10,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:10,948 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:10,948 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:10,949 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1468 [2021-06-05 03:51:10,949 INFO L430 AbstractCegarLoop]: === Iteration 1470 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:10,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:10,949 INFO L82 PathProgramCache]: Analyzing trace with hash -73192791, now seen corresponding path program 1465 times [2021-06-05 03:51:10,949 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:10,949 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462714682] [2021-06-05 03:51:10,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:10,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:11,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:11,075 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:11,075 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462714682] [2021-06-05 03:51:11,075 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462714682] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:11,075 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:11,075 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:11,075 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290541686] [2021-06-05 03:51:11,075 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:11,075 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:11,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:11,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:11,076 INFO L87 Difference]: Start difference. First operand 5069 states and 24091 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:11,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:11,203 INFO L93 Difference]: Finished difference Result 11805 states and 52778 transitions. [2021-06-05 03:51:11,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:11,203 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:11,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:11,231 INFO L225 Difference]: With dead ends: 11805 [2021-06-05 03:51:11,231 INFO L226 Difference]: Without dead ends: 11390 [2021-06-05 03:51:11,231 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 151.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:11,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11390 states. [2021-06-05 03:51:11,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11390 to 5233. [2021-06-05 03:51:11,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5233 states, 5232 states have (on average 4.7452217125382266) internal successors, (24827), 5232 states have internal predecessors, (24827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:11,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5233 states to 5233 states and 24827 transitions. [2021-06-05 03:51:11,466 INFO L78 Accepts]: Start accepts. Automaton has 5233 states and 24827 transitions. Word has length 29 [2021-06-05 03:51:11,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:11,466 INFO L482 AbstractCegarLoop]: Abstraction has 5233 states and 24827 transitions. [2021-06-05 03:51:11,467 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:11,467 INFO L276 IsEmpty]: Start isEmpty. Operand 5233 states and 24827 transitions. [2021-06-05 03:51:11,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:11,475 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:11,475 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:11,475 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1469 [2021-06-05 03:51:11,475 INFO L430 AbstractCegarLoop]: === Iteration 1471 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:11,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:11,475 INFO L82 PathProgramCache]: Analyzing trace with hash 1681627817, now seen corresponding path program 1466 times [2021-06-05 03:51:11,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:11,475 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389772715] [2021-06-05 03:51:11,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:11,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:11,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:11,604 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:11,604 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389772715] [2021-06-05 03:51:11,604 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389772715] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:11,604 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:11,604 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:11,604 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678364737] [2021-06-05 03:51:11,604 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:11,604 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:11,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:11,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:11,605 INFO L87 Difference]: Start difference. First operand 5233 states and 24827 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:11,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:11,707 INFO L93 Difference]: Finished difference Result 11932 states and 53257 transitions. [2021-06-05 03:51:11,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:11,707 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:11,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:11,735 INFO L225 Difference]: With dead ends: 11932 [2021-06-05 03:51:11,735 INFO L226 Difference]: Without dead ends: 11310 [2021-06-05 03:51:11,736 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 136.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:11,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11310 states. [2021-06-05 03:51:11,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11310 to 5153. [2021-06-05 03:51:11,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 5152 states have (on average 4.74902950310559) internal successors, (24467), 5152 states have internal predecessors, (24467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:11,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 24467 transitions. [2021-06-05 03:51:11,972 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 24467 transitions. Word has length 29 [2021-06-05 03:51:11,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:11,973 INFO L482 AbstractCegarLoop]: Abstraction has 5153 states and 24467 transitions. [2021-06-05 03:51:11,973 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:11,973 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 24467 transitions. [2021-06-05 03:51:11,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:11,981 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:11,981 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:11,981 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1470 [2021-06-05 03:51:11,981 INFO L430 AbstractCegarLoop]: === Iteration 1472 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:11,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:11,982 INFO L82 PathProgramCache]: Analyzing trace with hash -292994647, now seen corresponding path program 1467 times [2021-06-05 03:51:11,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:11,982 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158299935] [2021-06-05 03:51:11,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:11,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:12,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:12,109 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:12,109 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158299935] [2021-06-05 03:51:12,109 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158299935] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:12,109 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:12,109 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:12,109 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168071868] [2021-06-05 03:51:12,110 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:12,110 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:12,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:12,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:12,110 INFO L87 Difference]: Start difference. First operand 5153 states and 24467 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:12,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:12,226 INFO L93 Difference]: Finished difference Result 11708 states and 52336 transitions. [2021-06-05 03:51:12,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:12,227 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:12,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:12,255 INFO L225 Difference]: With dead ends: 11708 [2021-06-05 03:51:12,256 INFO L226 Difference]: Without dead ends: 11293 [2021-06-05 03:51:12,256 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 153.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:12,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11293 states. [2021-06-05 03:51:12,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11293 to 5201. [2021-06-05 03:51:12,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5201 states, 5200 states have (on average 4.7390384615384615) internal successors, (24643), 5200 states have internal predecessors, (24643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:12,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5201 states to 5201 states and 24643 transitions. [2021-06-05 03:51:12,500 INFO L78 Accepts]: Start accepts. Automaton has 5201 states and 24643 transitions. Word has length 29 [2021-06-05 03:51:12,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:12,500 INFO L482 AbstractCegarLoop]: Abstraction has 5201 states and 24643 transitions. [2021-06-05 03:51:12,500 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:12,500 INFO L276 IsEmpty]: Start isEmpty. Operand 5201 states and 24643 transitions. [2021-06-05 03:51:12,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:12,509 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:12,509 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:12,509 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1471 [2021-06-05 03:51:12,510 INFO L430 AbstractCegarLoop]: === Iteration 1473 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:12,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:12,510 INFO L82 PathProgramCache]: Analyzing trace with hash 423668299, now seen corresponding path program 1468 times [2021-06-05 03:51:12,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:12,510 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212154296] [2021-06-05 03:51:12,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:12,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:12,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:12,640 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:12,640 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212154296] [2021-06-05 03:51:12,640 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212154296] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:12,640 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:12,640 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:12,640 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869848954] [2021-06-05 03:51:12,640 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:12,640 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:12,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:12,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:12,640 INFO L87 Difference]: Start difference. First operand 5201 states and 24643 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:12,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:12,762 INFO L93 Difference]: Finished difference Result 11770 states and 52557 transitions. [2021-06-05 03:51:12,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:12,762 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:12,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:12,790 INFO L225 Difference]: With dead ends: 11770 [2021-06-05 03:51:12,790 INFO L226 Difference]: Without dead ends: 11245 [2021-06-05 03:51:12,791 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 155.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:12,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11245 states. [2021-06-05 03:51:13,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11245 to 5153. [2021-06-05 03:51:13,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 5152 states have (on average 4.744371118012422) internal successors, (24443), 5152 states have internal predecessors, (24443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:13,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 24443 transitions. [2021-06-05 03:51:13,027 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 24443 transitions. Word has length 29 [2021-06-05 03:51:13,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:13,027 INFO L482 AbstractCegarLoop]: Abstraction has 5153 states and 24443 transitions. [2021-06-05 03:51:13,027 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:13,027 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 24443 transitions. [2021-06-05 03:51:13,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:13,035 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:13,035 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:13,035 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1472 [2021-06-05 03:51:13,035 INFO L430 AbstractCegarLoop]: === Iteration 1474 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:13,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:13,036 INFO L82 PathProgramCache]: Analyzing trace with hash -1788073397, now seen corresponding path program 1469 times [2021-06-05 03:51:13,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:13,036 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747111517] [2021-06-05 03:51:13,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:13,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:13,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:13,152 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:13,152 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747111517] [2021-06-05 03:51:13,152 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747111517] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:13,152 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:13,152 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:13,152 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151623046] [2021-06-05 03:51:13,152 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:13,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:13,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:13,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:13,153 INFO L87 Difference]: Start difference. First operand 5153 states and 24443 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:13,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:13,256 INFO L93 Difference]: Finished difference Result 12057 states and 53772 transitions. [2021-06-05 03:51:13,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:13,257 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:13,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:13,286 INFO L225 Difference]: With dead ends: 12057 [2021-06-05 03:51:13,286 INFO L226 Difference]: Without dead ends: 11515 [2021-06-05 03:51:13,286 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 124.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:13,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11515 states. [2021-06-05 03:51:13,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11515 to 5296. [2021-06-05 03:51:13,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5296 states, 5295 states have (on average 4.714258734655335) internal successors, (24962), 5295 states have internal predecessors, (24962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:13,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5296 states to 5296 states and 24962 transitions. [2021-06-05 03:51:13,526 INFO L78 Accepts]: Start accepts. Automaton has 5296 states and 24962 transitions. Word has length 29 [2021-06-05 03:51:13,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:13,526 INFO L482 AbstractCegarLoop]: Abstraction has 5296 states and 24962 transitions. [2021-06-05 03:51:13,526 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:13,527 INFO L276 IsEmpty]: Start isEmpty. Operand 5296 states and 24962 transitions. [2021-06-05 03:51:13,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:13,535 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:13,535 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:13,535 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1473 [2021-06-05 03:51:13,536 INFO L430 AbstractCegarLoop]: === Iteration 1475 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:13,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:13,536 INFO L82 PathProgramCache]: Analyzing trace with hash 463556905, now seen corresponding path program 1470 times [2021-06-05 03:51:13,536 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:13,536 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806004521] [2021-06-05 03:51:13,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:13,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:13,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:13,652 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:13,652 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806004521] [2021-06-05 03:51:13,652 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806004521] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:13,652 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:13,652 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:13,652 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150230221] [2021-06-05 03:51:13,653 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:13,653 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:13,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:13,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:13,653 INFO L87 Difference]: Start difference. First operand 5296 states and 24962 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:13,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:13,830 INFO L93 Difference]: Finished difference Result 11992 states and 53403 transitions. [2021-06-05 03:51:13,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:13,830 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:13,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:13,867 INFO L225 Difference]: With dead ends: 11992 [2021-06-05 03:51:13,867 INFO L226 Difference]: Without dead ends: 11316 [2021-06-05 03:51:13,867 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 156.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:13,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11316 states. [2021-06-05 03:51:14,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11316 to 5097. [2021-06-05 03:51:14,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5097 states, 5096 states have (on average 4.750981161695448) internal successors, (24211), 5096 states have internal predecessors, (24211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:14,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5097 states to 5097 states and 24211 transitions. [2021-06-05 03:51:14,112 INFO L78 Accepts]: Start accepts. Automaton has 5097 states and 24211 transitions. Word has length 29 [2021-06-05 03:51:14,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:14,112 INFO L482 AbstractCegarLoop]: Abstraction has 5097 states and 24211 transitions. [2021-06-05 03:51:14,112 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:14,112 INFO L276 IsEmpty]: Start isEmpty. Operand 5097 states and 24211 transitions. [2021-06-05 03:51:14,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:14,121 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:14,121 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:14,121 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1474 [2021-06-05 03:51:14,121 INFO L430 AbstractCegarLoop]: === Iteration 1476 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:14,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:14,121 INFO L82 PathProgramCache]: Analyzing trace with hash 902125131, now seen corresponding path program 1471 times [2021-06-05 03:51:14,121 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:14,121 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237227559] [2021-06-05 03:51:14,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:14,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:14,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:14,250 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:14,250 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237227559] [2021-06-05 03:51:14,250 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237227559] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:14,250 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:14,250 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:14,250 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012947612] [2021-06-05 03:51:14,250 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:14,250 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:14,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:14,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:14,250 INFO L87 Difference]: Start difference. First operand 5097 states and 24211 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:14,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:14,384 INFO L93 Difference]: Finished difference Result 11748 states and 52547 transitions. [2021-06-05 03:51:14,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:14,384 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:14,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:14,412 INFO L225 Difference]: With dead ends: 11748 [2021-06-05 03:51:14,412 INFO L226 Difference]: Without dead ends: 11333 [2021-06-05 03:51:14,413 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 154.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:14,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11333 states. [2021-06-05 03:51:14,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11333 to 5217. [2021-06-05 03:51:14,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5217 states, 5216 states have (on average 4.742139570552148) internal successors, (24735), 5216 states have internal predecessors, (24735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:14,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5217 states to 5217 states and 24735 transitions. [2021-06-05 03:51:14,639 INFO L78 Accepts]: Start accepts. Automaton has 5217 states and 24735 transitions. Word has length 29 [2021-06-05 03:51:14,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:14,640 INFO L482 AbstractCegarLoop]: Abstraction has 5217 states and 24735 transitions. [2021-06-05 03:51:14,640 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:14,640 INFO L276 IsEmpty]: Start isEmpty. Operand 5217 states and 24735 transitions. [2021-06-05 03:51:14,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:14,648 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:14,648 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:14,648 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1475 [2021-06-05 03:51:14,648 INFO L430 AbstractCegarLoop]: === Iteration 1477 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:14,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:14,648 INFO L82 PathProgramCache]: Analyzing trace with hash -1638021557, now seen corresponding path program 1472 times [2021-06-05 03:51:14,648 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:14,648 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219385065] [2021-06-05 03:51:14,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:14,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:14,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:14,777 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:14,777 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219385065] [2021-06-05 03:51:14,777 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219385065] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:14,777 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:14,777 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:14,777 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147304212] [2021-06-05 03:51:14,777 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:14,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:14,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:14,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:14,778 INFO L87 Difference]: Start difference. First operand 5217 states and 24735 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:14,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:14,872 INFO L93 Difference]: Finished difference Result 11875 states and 53026 transitions. [2021-06-05 03:51:14,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:14,873 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:14,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:14,900 INFO L225 Difference]: With dead ends: 11875 [2021-06-05 03:51:14,900 INFO L226 Difference]: Without dead ends: 11253 [2021-06-05 03:51:14,900 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 137.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:15,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11253 states. [2021-06-05 03:51:15,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11253 to 5137. [2021-06-05 03:51:15,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5137 states, 5136 states have (on average 4.745911214953271) internal successors, (24375), 5136 states have internal predecessors, (24375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:15,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5137 states to 5137 states and 24375 transitions. [2021-06-05 03:51:15,122 INFO L78 Accepts]: Start accepts. Automaton has 5137 states and 24375 transitions. Word has length 29 [2021-06-05 03:51:15,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:15,122 INFO L482 AbstractCegarLoop]: Abstraction has 5137 states and 24375 transitions. [2021-06-05 03:51:15,122 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:15,122 INFO L276 IsEmpty]: Start isEmpty. Operand 5137 states and 24375 transitions. [2021-06-05 03:51:15,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:15,130 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:15,130 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:15,130 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1476 [2021-06-05 03:51:15,130 INFO L430 AbstractCegarLoop]: === Iteration 1478 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:15,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:15,130 INFO L82 PathProgramCache]: Analyzing trace with hash 1337297513, now seen corresponding path program 1473 times [2021-06-05 03:51:15,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:15,130 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382399467] [2021-06-05 03:51:15,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:15,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:15,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:15,240 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:15,240 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382399467] [2021-06-05 03:51:15,240 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382399467] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:15,240 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:15,240 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:15,240 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889202973] [2021-06-05 03:51:15,240 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:15,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:15,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:15,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:15,241 INFO L87 Difference]: Start difference. First operand 5137 states and 24375 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:15,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:15,352 INFO L93 Difference]: Finished difference Result 11645 states and 52088 transitions. [2021-06-05 03:51:15,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:15,353 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:15,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:15,381 INFO L225 Difference]: With dead ends: 11645 [2021-06-05 03:51:15,381 INFO L226 Difference]: Without dead ends: 11230 [2021-06-05 03:51:15,381 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 135.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:15,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11230 states. [2021-06-05 03:51:15,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11230 to 5185. [2021-06-05 03:51:15,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5185 states, 5184 states have (on average 4.7359182098765435) internal successors, (24551), 5184 states have internal predecessors, (24551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:15,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5185 states to 5185 states and 24551 transitions. [2021-06-05 03:51:15,614 INFO L78 Accepts]: Start accepts. Automaton has 5185 states and 24551 transitions. Word has length 29 [2021-06-05 03:51:15,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:15,614 INFO L482 AbstractCegarLoop]: Abstraction has 5185 states and 24551 transitions. [2021-06-05 03:51:15,614 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:15,614 INFO L276 IsEmpty]: Start isEmpty. Operand 5185 states and 24551 transitions. [2021-06-05 03:51:15,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:15,623 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:15,623 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:15,623 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1477 [2021-06-05 03:51:15,623 INFO L430 AbstractCegarLoop]: === Iteration 1479 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:15,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:15,623 INFO L82 PathProgramCache]: Analyzing trace with hash 206944651, now seen corresponding path program 1474 times [2021-06-05 03:51:15,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:15,623 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732779202] [2021-06-05 03:51:15,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:15,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:15,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:15,739 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:15,739 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732779202] [2021-06-05 03:51:15,739 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732779202] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:15,739 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:15,739 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:15,739 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682331830] [2021-06-05 03:51:15,740 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:15,740 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:15,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:15,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:15,740 INFO L87 Difference]: Start difference. First operand 5185 states and 24551 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:15,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:15,854 INFO L93 Difference]: Finished difference Result 11701 states and 52292 transitions. [2021-06-05 03:51:15,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:15,854 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:15,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:15,881 INFO L225 Difference]: With dead ends: 11701 [2021-06-05 03:51:15,881 INFO L226 Difference]: Without dead ends: 11182 [2021-06-05 03:51:15,881 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 140.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:15,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11182 states. [2021-06-05 03:51:16,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11182 to 5137. [2021-06-05 03:51:16,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5137 states, 5136 states have (on average 4.741238317757009) internal successors, (24351), 5136 states have internal predecessors, (24351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:16,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5137 states to 5137 states and 24351 transitions. [2021-06-05 03:51:16,111 INFO L78 Accepts]: Start accepts. Automaton has 5137 states and 24351 transitions. Word has length 29 [2021-06-05 03:51:16,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:16,111 INFO L482 AbstractCegarLoop]: Abstraction has 5137 states and 24351 transitions. [2021-06-05 03:51:16,111 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:16,111 INFO L276 IsEmpty]: Start isEmpty. Operand 5137 states and 24351 transitions. [2021-06-05 03:51:16,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:16,119 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:16,119 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:16,119 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1478 [2021-06-05 03:51:16,119 INFO L430 AbstractCegarLoop]: === Iteration 1480 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:16,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:16,119 INFO L82 PathProgramCache]: Analyzing trace with hash 273574283, now seen corresponding path program 1475 times [2021-06-05 03:51:16,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:16,119 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404407888] [2021-06-05 03:51:16,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:16,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:16,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:16,245 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:16,245 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404407888] [2021-06-05 03:51:16,245 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404407888] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:16,245 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:16,245 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:16,245 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897006437] [2021-06-05 03:51:16,245 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:16,245 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:16,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:16,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:16,246 INFO L87 Difference]: Start difference. First operand 5137 states and 24351 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:16,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:16,344 INFO L93 Difference]: Finished difference Result 11959 states and 53402 transitions. [2021-06-05 03:51:16,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:16,344 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:16,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:16,372 INFO L225 Difference]: With dead ends: 11959 [2021-06-05 03:51:16,372 INFO L226 Difference]: Without dead ends: 11417 [2021-06-05 03:51:16,372 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 135.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:16,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11417 states. [2021-06-05 03:51:16,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11417 to 5245. [2021-06-05 03:51:16,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5245 states, 5244 states have (on average 4.719870327993898) internal successors, (24751), 5244 states have internal predecessors, (24751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:16,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5245 states to 5245 states and 24751 transitions. [2021-06-05 03:51:16,610 INFO L78 Accepts]: Start accepts. Automaton has 5245 states and 24751 transitions. Word has length 29 [2021-06-05 03:51:16,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:16,610 INFO L482 AbstractCegarLoop]: Abstraction has 5245 states and 24751 transitions. [2021-06-05 03:51:16,610 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:16,610 INFO L276 IsEmpty]: Start isEmpty. Operand 5245 states and 24751 transitions. [2021-06-05 03:51:16,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:16,619 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:16,619 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:16,619 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1479 [2021-06-05 03:51:16,619 INFO L430 AbstractCegarLoop]: === Iteration 1481 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:16,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:16,619 INFO L82 PathProgramCache]: Analyzing trace with hash 183814633, now seen corresponding path program 1476 times [2021-06-05 03:51:16,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:16,619 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914509212] [2021-06-05 03:51:16,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:16,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:16,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:16,746 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:16,746 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914509212] [2021-06-05 03:51:16,746 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914509212] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:16,746 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:16,746 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:16,746 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338770138] [2021-06-05 03:51:16,746 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:16,746 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:16,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:16,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:16,746 INFO L87 Difference]: Start difference. First operand 5245 states and 24751 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:16,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:16,869 INFO L93 Difference]: Finished difference Result 11888 states and 53019 transitions. [2021-06-05 03:51:16,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:16,869 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:16,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:16,898 INFO L225 Difference]: With dead ends: 11888 [2021-06-05 03:51:16,898 INFO L226 Difference]: Without dead ends: 11269 [2021-06-05 03:51:16,898 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 152.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:17,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11269 states. [2021-06-05 03:51:17,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11269 to 5097. [2021-06-05 03:51:17,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5097 states, 5096 states have (on average 4.747056514913658) internal successors, (24191), 5096 states have internal predecessors, (24191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:17,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5097 states to 5097 states and 24191 transitions. [2021-06-05 03:51:17,134 INFO L78 Accepts]: Start accepts. Automaton has 5097 states and 24191 transitions. Word has length 29 [2021-06-05 03:51:17,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:17,134 INFO L482 AbstractCegarLoop]: Abstraction has 5097 states and 24191 transitions. [2021-06-05 03:51:17,134 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:17,134 INFO L276 IsEmpty]: Start isEmpty. Operand 5097 states and 24191 transitions. [2021-06-05 03:51:17,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:17,142 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:17,142 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:17,142 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1480 [2021-06-05 03:51:17,142 INFO L430 AbstractCegarLoop]: === Iteration 1482 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:17,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:17,143 INFO L82 PathProgramCache]: Analyzing trace with hash -2141802135, now seen corresponding path program 1477 times [2021-06-05 03:51:17,143 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:17,143 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376665260] [2021-06-05 03:51:17,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:17,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:17,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:17,261 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:17,261 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376665260] [2021-06-05 03:51:17,261 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376665260] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:17,261 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:17,261 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:17,261 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430174703] [2021-06-05 03:51:17,261 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:17,261 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:17,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:17,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:17,262 INFO L87 Difference]: Start difference. First operand 5097 states and 24191 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:17,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:17,380 INFO L93 Difference]: Finished difference Result 11506 states and 51499 transitions. [2021-06-05 03:51:17,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:17,380 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:17,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:17,408 INFO L225 Difference]: With dead ends: 11506 [2021-06-05 03:51:17,408 INFO L226 Difference]: Without dead ends: 11091 [2021-06-05 03:51:17,409 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 145.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:17,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11091 states. [2021-06-05 03:51:17,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11091 to 5169. [2021-06-05 03:51:17,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5169 states, 5168 states have (on average 4.738970588235294) internal successors, (24491), 5168 states have internal predecessors, (24491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:17,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5169 states to 5169 states and 24491 transitions. [2021-06-05 03:51:17,692 INFO L78 Accepts]: Start accepts. Automaton has 5169 states and 24491 transitions. Word has length 29 [2021-06-05 03:51:17,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:17,692 INFO L482 AbstractCegarLoop]: Abstraction has 5169 states and 24491 transitions. [2021-06-05 03:51:17,692 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:17,692 INFO L276 IsEmpty]: Start isEmpty. Operand 5169 states and 24491 transitions. [2021-06-05 03:51:17,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:17,701 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:17,701 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:17,701 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1481 [2021-06-05 03:51:17,701 INFO L430 AbstractCegarLoop]: === Iteration 1483 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:17,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:17,701 INFO L82 PathProgramCache]: Analyzing trace with hash -1425139189, now seen corresponding path program 1478 times [2021-06-05 03:51:17,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:17,701 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490166197] [2021-06-05 03:51:17,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:17,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:17,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:17,816 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:17,816 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490166197] [2021-06-05 03:51:17,816 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490166197] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:17,816 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:17,816 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:17,816 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507339631] [2021-06-05 03:51:17,817 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:17,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:17,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:17,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:17,817 INFO L87 Difference]: Start difference. First operand 5169 states and 24491 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:17,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:17,932 INFO L93 Difference]: Finished difference Result 11568 states and 51720 transitions. [2021-06-05 03:51:17,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:17,933 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:17,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:17,961 INFO L225 Difference]: With dead ends: 11568 [2021-06-05 03:51:17,961 INFO L226 Difference]: Without dead ends: 11043 [2021-06-05 03:51:17,961 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 141.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:18,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11043 states. [2021-06-05 03:51:18,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11043 to 5121. [2021-06-05 03:51:18,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5121 states, 5120 states have (on average 4.7443359375) internal successors, (24291), 5120 states have internal predecessors, (24291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:18,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5121 states to 5121 states and 24291 transitions. [2021-06-05 03:51:18,173 INFO L78 Accepts]: Start accepts. Automaton has 5121 states and 24291 transitions. Word has length 29 [2021-06-05 03:51:18,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:18,173 INFO L482 AbstractCegarLoop]: Abstraction has 5121 states and 24291 transitions. [2021-06-05 03:51:18,173 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:18,173 INFO L276 IsEmpty]: Start isEmpty. Operand 5121 states and 24291 transitions. [2021-06-05 03:51:18,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:18,180 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:18,180 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:18,180 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1482 [2021-06-05 03:51:18,180 INFO L430 AbstractCegarLoop]: === Iteration 1484 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:18,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:18,181 INFO L82 PathProgramCache]: Analyzing trace with hash 286147787, now seen corresponding path program 1479 times [2021-06-05 03:51:18,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:18,181 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139616552] [2021-06-05 03:51:18,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:18,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:18,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:18,281 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:18,281 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139616552] [2021-06-05 03:51:18,281 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139616552] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:18,281 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:18,281 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:18,281 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567851642] [2021-06-05 03:51:18,281 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:18,281 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:18,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:18,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:18,282 INFO L87 Difference]: Start difference. First operand 5121 states and 24291 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:18,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:18,395 INFO L93 Difference]: Finished difference Result 11500 states and 51458 transitions. [2021-06-05 03:51:18,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:18,395 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:18,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:18,423 INFO L225 Difference]: With dead ends: 11500 [2021-06-05 03:51:18,423 INFO L226 Difference]: Without dead ends: 11085 [2021-06-05 03:51:18,423 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 126.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:18,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11085 states. [2021-06-05 03:51:18,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11085 to 5169. [2021-06-05 03:51:18,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5169 states, 5168 states have (on average 4.734326625386997) internal successors, (24467), 5168 states have internal predecessors, (24467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:18,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5169 states to 5169 states and 24467 transitions. [2021-06-05 03:51:18,651 INFO L78 Accepts]: Start accepts. Automaton has 5169 states and 24467 transitions. Word has length 29 [2021-06-05 03:51:18,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:18,651 INFO L482 AbstractCegarLoop]: Abstraction has 5169 states and 24467 transitions. [2021-06-05 03:51:18,651 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:18,652 INFO L276 IsEmpty]: Start isEmpty. Operand 5169 states and 24467 transitions. [2021-06-05 03:51:18,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:18,660 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:18,660 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:18,660 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1483 [2021-06-05 03:51:18,660 INFO L430 AbstractCegarLoop]: === Iteration 1485 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:18,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:18,660 INFO L82 PathProgramCache]: Analyzing trace with hash -569241461, now seen corresponding path program 1480 times [2021-06-05 03:51:18,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:18,660 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779779517] [2021-06-05 03:51:18,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:18,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:18,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:18,760 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:18,760 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779779517] [2021-06-05 03:51:18,760 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779779517] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:18,760 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:18,760 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:18,760 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101687944] [2021-06-05 03:51:18,760 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:18,760 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:18,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:18,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:18,760 INFO L87 Difference]: Start difference. First operand 5169 states and 24467 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:18,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:18,876 INFO L93 Difference]: Finished difference Result 11556 states and 51662 transitions. [2021-06-05 03:51:18,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:18,876 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:18,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:18,905 INFO L225 Difference]: With dead ends: 11556 [2021-06-05 03:51:18,906 INFO L226 Difference]: Without dead ends: 11037 [2021-06-05 03:51:18,906 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 126.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:19,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11037 states. [2021-06-05 03:51:19,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11037 to 5121. [2021-06-05 03:51:19,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5121 states, 5120 states have (on average 4.7396484375) internal successors, (24267), 5120 states have internal predecessors, (24267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:19,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5121 states to 5121 states and 24267 transitions. [2021-06-05 03:51:19,138 INFO L78 Accepts]: Start accepts. Automaton has 5121 states and 24267 transitions. Word has length 29 [2021-06-05 03:51:19,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:19,138 INFO L482 AbstractCegarLoop]: Abstraction has 5121 states and 24267 transitions. [2021-06-05 03:51:19,138 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:19,138 INFO L276 IsEmpty]: Start isEmpty. Operand 5121 states and 24267 transitions. [2021-06-05 03:51:19,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:19,146 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:19,147 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:19,147 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1484 [2021-06-05 03:51:19,147 INFO L430 AbstractCegarLoop]: === Iteration 1486 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:19,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:19,147 INFO L82 PathProgramCache]: Analyzing trace with hash -1067513683, now seen corresponding path program 1481 times [2021-06-05 03:51:19,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:19,147 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681061012] [2021-06-05 03:51:19,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:19,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:19,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:19,249 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:19,249 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681061012] [2021-06-05 03:51:19,249 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681061012] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:19,249 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:19,249 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:19,249 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27824398] [2021-06-05 03:51:19,249 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:19,249 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:19,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:19,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:19,249 INFO L87 Difference]: Start difference. First operand 5121 states and 24267 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:19,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:19,362 INFO L93 Difference]: Finished difference Result 11652 states and 52112 transitions. [2021-06-05 03:51:19,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:19,362 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:19,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:19,387 INFO L225 Difference]: With dead ends: 11652 [2021-06-05 03:51:19,387 INFO L226 Difference]: Without dead ends: 11175 [2021-06-05 03:51:19,387 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:19,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11175 states. [2021-06-05 03:51:19,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11175 to 5197. [2021-06-05 03:51:19,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5197 states, 5196 states have (on average 4.725750577367205) internal successors, (24555), 5196 states have internal predecessors, (24555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:19,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5197 states to 5197 states and 24555 transitions. [2021-06-05 03:51:19,617 INFO L78 Accepts]: Start accepts. Automaton has 5197 states and 24555 transitions. Word has length 29 [2021-06-05 03:51:19,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:19,618 INFO L482 AbstractCegarLoop]: Abstraction has 5197 states and 24555 transitions. [2021-06-05 03:51:19,618 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:19,618 INFO L276 IsEmpty]: Start isEmpty. Operand 5197 states and 24555 transitions. [2021-06-05 03:51:19,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:19,626 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:19,626 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:19,627 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1485 [2021-06-05 03:51:19,627 INFO L430 AbstractCegarLoop]: === Iteration 1487 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:19,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:19,627 INFO L82 PathProgramCache]: Analyzing trace with hash -1808465781, now seen corresponding path program 1482 times [2021-06-05 03:51:19,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:19,627 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179005105] [2021-06-05 03:51:19,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:19,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:19,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:19,728 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:19,728 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179005105] [2021-06-05 03:51:19,728 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179005105] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:19,728 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:19,729 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:19,729 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234826087] [2021-06-05 03:51:19,729 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:19,729 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:19,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:19,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:19,729 INFO L87 Difference]: Start difference. First operand 5197 states and 24555 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:19,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:19,846 INFO L93 Difference]: Finished difference Result 11646 states and 52019 transitions. [2021-06-05 03:51:19,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:19,846 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:19,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:19,871 INFO L225 Difference]: With dead ends: 11646 [2021-06-05 03:51:19,871 INFO L226 Difference]: Without dead ends: 11075 [2021-06-05 03:51:19,871 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:19,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11075 states. [2021-06-05 03:51:20,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11075 to 5097. [2021-06-05 03:51:20,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5097 states, 5096 states have (on average 4.744701726844584) internal successors, (24179), 5096 states have internal predecessors, (24179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:20,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5097 states to 5097 states and 24179 transitions. [2021-06-05 03:51:20,093 INFO L78 Accepts]: Start accepts. Automaton has 5097 states and 24179 transitions. Word has length 29 [2021-06-05 03:51:20,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:20,093 INFO L482 AbstractCegarLoop]: Abstraction has 5097 states and 24179 transitions. [2021-06-05 03:51:20,093 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:20,093 INFO L276 IsEmpty]: Start isEmpty. Operand 5097 states and 24179 transitions. [2021-06-05 03:51:20,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:20,101 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:20,101 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:20,101 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1486 [2021-06-05 03:51:20,101 INFO L430 AbstractCegarLoop]: === Iteration 1488 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:20,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:20,102 INFO L82 PathProgramCache]: Analyzing trace with hash -2133145427, now seen corresponding path program 1483 times [2021-06-05 03:51:20,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:20,102 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215092645] [2021-06-05 03:51:20,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:20,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:20,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:20,206 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:20,206 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215092645] [2021-06-05 03:51:20,206 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215092645] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:20,206 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:20,206 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:20,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398491438] [2021-06-05 03:51:20,206 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:20,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:20,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:20,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:20,206 INFO L87 Difference]: Start difference. First operand 5097 states and 24179 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:20,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:20,303 INFO L93 Difference]: Finished difference Result 12183 states and 54385 transitions. [2021-06-05 03:51:20,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:20,303 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:20,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:20,329 INFO L225 Difference]: With dead ends: 12183 [2021-06-05 03:51:20,329 INFO L226 Difference]: Without dead ends: 11641 [2021-06-05 03:51:20,329 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 112.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:20,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11641 states. [2021-06-05 03:51:20,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11641 to 5310. [2021-06-05 03:51:20,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5310 states, 5309 states have (on average 4.717084196647203) internal successors, (25043), 5309 states have internal predecessors, (25043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:20,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5310 states to 5310 states and 25043 transitions. [2021-06-05 03:51:20,561 INFO L78 Accepts]: Start accepts. Automaton has 5310 states and 25043 transitions. Word has length 29 [2021-06-05 03:51:20,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:20,561 INFO L482 AbstractCegarLoop]: Abstraction has 5310 states and 25043 transitions. [2021-06-05 03:51:20,561 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:20,561 INFO L276 IsEmpty]: Start isEmpty. Operand 5310 states and 25043 transitions. [2021-06-05 03:51:20,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:20,569 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:20,570 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:20,570 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1487 [2021-06-05 03:51:20,570 INFO L430 AbstractCegarLoop]: === Iteration 1489 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:20,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:20,570 INFO L82 PathProgramCache]: Analyzing trace with hash 118484875, now seen corresponding path program 1484 times [2021-06-05 03:51:20,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:20,570 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318737078] [2021-06-05 03:51:20,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:20,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:20,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:20,673 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:20,673 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318737078] [2021-06-05 03:51:20,674 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318737078] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:20,674 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:20,674 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:20,674 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760774534] [2021-06-05 03:51:20,674 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:20,674 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:20,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:20,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:20,674 INFO L87 Difference]: Start difference. First operand 5310 states and 25043 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:20,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:20,782 INFO L93 Difference]: Finished difference Result 12118 states and 54016 transitions. [2021-06-05 03:51:20,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:20,782 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:20,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:20,808 INFO L225 Difference]: With dead ends: 12118 [2021-06-05 03:51:20,808 INFO L226 Difference]: Without dead ends: 11498 [2021-06-05 03:51:20,808 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 129.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:20,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11498 states. [2021-06-05 03:51:21,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11498 to 5167. [2021-06-05 03:51:21,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5167 states, 5166 states have (on average 4.733643050716221) internal successors, (24454), 5166 states have internal predecessors, (24454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:21,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 24454 transitions. [2021-06-05 03:51:21,038 INFO L78 Accepts]: Start accepts. Automaton has 5167 states and 24454 transitions. Word has length 29 [2021-06-05 03:51:21,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:21,038 INFO L482 AbstractCegarLoop]: Abstraction has 5167 states and 24454 transitions. [2021-06-05 03:51:21,038 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:21,038 INFO L276 IsEmpty]: Start isEmpty. Operand 5167 states and 24454 transitions. [2021-06-05 03:51:21,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:21,047 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:21,047 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:21,047 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1488 [2021-06-05 03:51:21,047 INFO L430 AbstractCegarLoop]: === Iteration 1490 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:21,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:21,047 INFO L82 PathProgramCache]: Analyzing trace with hash -1223540469, now seen corresponding path program 1485 times [2021-06-05 03:51:21,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:21,047 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40171166] [2021-06-05 03:51:21,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:21,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:21,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:21,163 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:21,163 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40171166] [2021-06-05 03:51:21,163 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40171166] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:21,163 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:21,163 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:21,163 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749885678] [2021-06-05 03:51:21,163 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:21,163 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:21,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:21,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:21,163 INFO L87 Difference]: Start difference. First operand 5167 states and 24454 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:21,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:21,255 INFO L93 Difference]: Finished difference Result 12142 states and 54176 transitions. [2021-06-05 03:51:21,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:21,255 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:21,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:21,281 INFO L225 Difference]: With dead ends: 12142 [2021-06-05 03:51:21,282 INFO L226 Difference]: Without dead ends: 11600 [2021-06-05 03:51:21,282 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 123.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:21,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11600 states. [2021-06-05 03:51:21,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11600 to 5275. [2021-06-05 03:51:21,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5275 states, 5274 states have (on average 4.712552142586272) internal successors, (24854), 5274 states have internal predecessors, (24854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:21,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5275 states to 5275 states and 24854 transitions. [2021-06-05 03:51:21,518 INFO L78 Accepts]: Start accepts. Automaton has 5275 states and 24854 transitions. Word has length 29 [2021-06-05 03:51:21,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:21,518 INFO L482 AbstractCegarLoop]: Abstraction has 5275 states and 24854 transitions. [2021-06-05 03:51:21,518 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:21,518 INFO L276 IsEmpty]: Start isEmpty. Operand 5275 states and 24854 transitions. [2021-06-05 03:51:21,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:21,527 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:21,527 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:21,527 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1489 [2021-06-05 03:51:21,527 INFO L430 AbstractCegarLoop]: === Iteration 1491 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:21,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:21,528 INFO L82 PathProgramCache]: Analyzing trace with hash -1304430325, now seen corresponding path program 1486 times [2021-06-05 03:51:21,528 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:21,528 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897110418] [2021-06-05 03:51:21,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:21,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:21,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:21,644 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:21,644 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897110418] [2021-06-05 03:51:21,644 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897110418] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:21,644 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:21,644 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:21,644 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024421220] [2021-06-05 03:51:21,644 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:21,644 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:21,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:21,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:21,644 INFO L87 Difference]: Start difference. First operand 5275 states and 24854 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:21,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:21,759 INFO L93 Difference]: Finished difference Result 12071 states and 53793 transitions. [2021-06-05 03:51:21,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:21,759 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:21,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:21,787 INFO L225 Difference]: With dead ends: 12071 [2021-06-05 03:51:21,787 INFO L226 Difference]: Without dead ends: 11492 [2021-06-05 03:51:21,787 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 141.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:21,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11492 states. [2021-06-05 03:51:21,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11492 to 5167. [2021-06-05 03:51:22,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5167 states, 5166 states have (on average 4.723190089043747) internal successors, (24400), 5166 states have internal predecessors, (24400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:22,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 24400 transitions. [2021-06-05 03:51:22,019 INFO L78 Accepts]: Start accepts. Automaton has 5167 states and 24400 transitions. Word has length 29 [2021-06-05 03:51:22,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:22,019 INFO L482 AbstractCegarLoop]: Abstraction has 5167 states and 24400 transitions. [2021-06-05 03:51:22,019 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:22,019 INFO L276 IsEmpty]: Start isEmpty. Operand 5167 states and 24400 transitions. [2021-06-05 03:51:22,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:22,027 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:22,027 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:22,027 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1490 [2021-06-05 03:51:22,027 INFO L430 AbstractCegarLoop]: === Iteration 1492 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:22,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:22,027 INFO L82 PathProgramCache]: Analyzing trace with hash -241192855, now seen corresponding path program 1487 times [2021-06-05 03:51:22,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:22,028 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831593657] [2021-06-05 03:51:22,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:22,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:22,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:22,131 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:22,131 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831593657] [2021-06-05 03:51:22,131 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831593657] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:22,131 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:22,131 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:22,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758134505] [2021-06-05 03:51:22,131 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:22,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:22,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:22,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:22,131 INFO L87 Difference]: Start difference. First operand 5167 states and 24400 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:22,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:22,257 INFO L93 Difference]: Finished difference Result 11980 states and 53462 transitions. [2021-06-05 03:51:22,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:22,257 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:22,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:22,285 INFO L225 Difference]: With dead ends: 11980 [2021-06-05 03:51:22,286 INFO L226 Difference]: Without dead ends: 11503 [2021-06-05 03:51:22,286 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 129.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:22,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11503 states. [2021-06-05 03:51:22,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11503 to 5243. [2021-06-05 03:51:22,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5243 states, 5242 states have (on average 4.709652804273178) internal successors, (24688), 5242 states have internal predecessors, (24688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:22,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5243 states to 5243 states and 24688 transitions. [2021-06-05 03:51:22,516 INFO L78 Accepts]: Start accepts. Automaton has 5243 states and 24688 transitions. Word has length 29 [2021-06-05 03:51:22,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:22,516 INFO L482 AbstractCegarLoop]: Abstraction has 5243 states and 24688 transitions. [2021-06-05 03:51:22,516 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:22,516 INFO L276 IsEmpty]: Start isEmpty. Operand 5243 states and 24688 transitions. [2021-06-05 03:51:22,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:22,524 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:22,524 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:22,524 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1491 [2021-06-05 03:51:22,524 INFO L430 AbstractCegarLoop]: === Iteration 1493 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:22,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:22,524 INFO L82 PathProgramCache]: Analyzing trace with hash -1735871413, now seen corresponding path program 1488 times [2021-06-05 03:51:22,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:22,524 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053243537] [2021-06-05 03:51:22,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:22,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:22,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:22,635 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:22,635 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053243537] [2021-06-05 03:51:22,635 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053243537] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:22,635 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:22,635 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:22,635 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22408197] [2021-06-05 03:51:22,635 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:22,635 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:22,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:22,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:22,636 INFO L87 Difference]: Start difference. First operand 5243 states and 24688 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:22,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:22,760 INFO L93 Difference]: Finished difference Result 11974 states and 53369 transitions. [2021-06-05 03:51:22,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:22,760 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:22,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:22,787 INFO L225 Difference]: With dead ends: 11974 [2021-06-05 03:51:22,787 INFO L226 Difference]: Without dead ends: 11329 [2021-06-05 03:51:22,787 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 136.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:22,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11329 states. [2021-06-05 03:51:22,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11329 to 5069. [2021-06-05 03:51:22,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5069 states, 5068 states have (on average 4.750789265982636) internal successors, (24077), 5068 states have internal predecessors, (24077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:23,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5069 states to 5069 states and 24077 transitions. [2021-06-05 03:51:23,011 INFO L78 Accepts]: Start accepts. Automaton has 5069 states and 24077 transitions. Word has length 29 [2021-06-05 03:51:23,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:23,011 INFO L482 AbstractCegarLoop]: Abstraction has 5069 states and 24077 transitions. [2021-06-05 03:51:23,011 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:23,011 INFO L276 IsEmpty]: Start isEmpty. Operand 5069 states and 24077 transitions. [2021-06-05 03:51:23,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:23,019 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:23,019 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:23,019 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1492 [2021-06-05 03:51:23,020 INFO L430 AbstractCegarLoop]: === Iteration 1494 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:23,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:23,020 INFO L82 PathProgramCache]: Analyzing trace with hash -646382901, now seen corresponding path program 1489 times [2021-06-05 03:51:23,020 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:23,020 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536274613] [2021-06-05 03:51:23,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:23,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:23,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:23,148 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:23,148 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536274613] [2021-06-05 03:51:23,148 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536274613] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:23,148 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:23,148 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:23,149 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586083175] [2021-06-05 03:51:23,149 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:23,149 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:23,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:23,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:23,149 INFO L87 Difference]: Start difference. First operand 5069 states and 24077 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:23,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:23,272 INFO L93 Difference]: Finished difference Result 11679 states and 52296 transitions. [2021-06-05 03:51:23,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:23,272 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:23,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:23,298 INFO L225 Difference]: With dead ends: 11679 [2021-06-05 03:51:23,298 INFO L226 Difference]: Without dead ends: 11264 [2021-06-05 03:51:23,298 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 146.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:23,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11264 states. [2021-06-05 03:51:23,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11264 to 5209. [2021-06-05 03:51:23,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5209 states, 5208 states have (on average 4.745199692780338) internal successors, (24713), 5208 states have internal predecessors, (24713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:23,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5209 states to 5209 states and 24713 transitions. [2021-06-05 03:51:23,530 INFO L78 Accepts]: Start accepts. Automaton has 5209 states and 24713 transitions. Word has length 29 [2021-06-05 03:51:23,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:23,530 INFO L482 AbstractCegarLoop]: Abstraction has 5209 states and 24713 transitions. [2021-06-05 03:51:23,530 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:23,530 INFO L276 IsEmpty]: Start isEmpty. Operand 5209 states and 24713 transitions. [2021-06-05 03:51:23,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:23,539 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:23,539 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:23,539 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1493 [2021-06-05 03:51:23,539 INFO L430 AbstractCegarLoop]: === Iteration 1495 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:23,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:23,539 INFO L82 PathProgramCache]: Analyzing trace with hash 1108437707, now seen corresponding path program 1490 times [2021-06-05 03:51:23,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:23,539 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582336044] [2021-06-05 03:51:23,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:23,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:23,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:23,663 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:23,663 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582336044] [2021-06-05 03:51:23,663 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582336044] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:23,663 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:23,663 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:23,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324506851] [2021-06-05 03:51:23,664 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:23,664 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:23,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:23,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:23,664 INFO L87 Difference]: Start difference. First operand 5209 states and 24713 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:23,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:23,757 INFO L93 Difference]: Finished difference Result 11806 states and 52775 transitions. [2021-06-05 03:51:23,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:23,758 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:23,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:23,782 INFO L225 Difference]: With dead ends: 11806 [2021-06-05 03:51:23,783 INFO L226 Difference]: Without dead ends: 11184 [2021-06-05 03:51:23,783 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 130.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:23,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11184 states. [2021-06-05 03:51:23,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11184 to 5129. [2021-06-05 03:51:23,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5129 states, 5128 states have (on average 4.74902496099844) internal successors, (24353), 5128 states have internal predecessors, (24353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:24,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5129 states to 5129 states and 24353 transitions. [2021-06-05 03:51:24,012 INFO L78 Accepts]: Start accepts. Automaton has 5129 states and 24353 transitions. Word has length 29 [2021-06-05 03:51:24,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:24,013 INFO L482 AbstractCegarLoop]: Abstraction has 5129 states and 24353 transitions. [2021-06-05 03:51:24,013 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:24,013 INFO L276 IsEmpty]: Start isEmpty. Operand 5129 states and 24353 transitions. [2021-06-05 03:51:24,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:24,020 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:24,020 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:24,020 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1494 [2021-06-05 03:51:24,020 INFO L430 AbstractCegarLoop]: === Iteration 1496 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:24,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:24,020 INFO L82 PathProgramCache]: Analyzing trace with hash 1761080937, now seen corresponding path program 1491 times [2021-06-05 03:51:24,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:24,021 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807840704] [2021-06-05 03:51:24,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:24,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:24,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:24,147 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:24,147 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807840704] [2021-06-05 03:51:24,147 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807840704] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:24,147 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:24,147 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:24,147 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185226482] [2021-06-05 03:51:24,147 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:24,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:24,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:24,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:24,148 INFO L87 Difference]: Start difference. First operand 5129 states and 24353 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:24,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:24,270 INFO L93 Difference]: Finished difference Result 11580 states and 51849 transitions. [2021-06-05 03:51:24,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:24,271 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:24,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:24,298 INFO L225 Difference]: With dead ends: 11580 [2021-06-05 03:51:24,298 INFO L226 Difference]: Without dead ends: 11165 [2021-06-05 03:51:24,298 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 153.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:24,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11165 states. [2021-06-05 03:51:24,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11165 to 5177. [2021-06-05 03:51:24,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5177 states, 5176 states have (on average 4.7389876352395675) internal successors, (24529), 5176 states have internal predecessors, (24529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:24,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5177 states to 5177 states and 24529 transitions. [2021-06-05 03:51:24,532 INFO L78 Accepts]: Start accepts. Automaton has 5177 states and 24529 transitions. Word has length 29 [2021-06-05 03:51:24,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:24,532 INFO L482 AbstractCegarLoop]: Abstraction has 5177 states and 24529 transitions. [2021-06-05 03:51:24,532 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:24,533 INFO L276 IsEmpty]: Start isEmpty. Operand 5177 states and 24529 transitions. [2021-06-05 03:51:24,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:24,541 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:24,541 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:24,541 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1495 [2021-06-05 03:51:24,541 INFO L430 AbstractCegarLoop]: === Iteration 1497 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:24,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:24,541 INFO L82 PathProgramCache]: Analyzing trace with hash 1246400011, now seen corresponding path program 1492 times [2021-06-05 03:51:24,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:24,541 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101533750] [2021-06-05 03:51:24,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:24,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:24,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:24,669 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:24,669 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101533750] [2021-06-05 03:51:24,669 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101533750] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:24,669 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:24,669 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:24,669 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117491040] [2021-06-05 03:51:24,670 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:24,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:24,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:24,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:24,670 INFO L87 Difference]: Start difference. First operand 5177 states and 24529 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:24,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:24,791 INFO L93 Difference]: Finished difference Result 11640 states and 52065 transitions. [2021-06-05 03:51:24,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:24,792 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:24,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:24,818 INFO L225 Difference]: With dead ends: 11640 [2021-06-05 03:51:24,818 INFO L226 Difference]: Without dead ends: 11117 [2021-06-05 03:51:24,818 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 154.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:24,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11117 states. [2021-06-05 03:51:25,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11117 to 5129. [2021-06-05 03:51:25,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5129 states, 5128 states have (on average 4.744344773790951) internal successors, (24329), 5128 states have internal predecessors, (24329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:25,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5129 states to 5129 states and 24329 transitions. [2021-06-05 03:51:25,033 INFO L78 Accepts]: Start accepts. Automaton has 5129 states and 24329 transitions. Word has length 29 [2021-06-05 03:51:25,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:25,033 INFO L482 AbstractCegarLoop]: Abstraction has 5129 states and 24329 transitions. [2021-06-05 03:51:25,033 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:25,033 INFO L276 IsEmpty]: Start isEmpty. Operand 5129 states and 24329 transitions. [2021-06-05 03:51:25,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:25,042 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:25,042 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:25,042 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1496 [2021-06-05 03:51:25,042 INFO L430 AbstractCegarLoop]: === Iteration 1498 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:25,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:25,042 INFO L82 PathProgramCache]: Analyzing trace with hash 1985228299, now seen corresponding path program 1493 times [2021-06-05 03:51:25,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:25,042 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260337892] [2021-06-05 03:51:25,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:25,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:25,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:25,158 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:25,158 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260337892] [2021-06-05 03:51:25,158 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260337892] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:25,158 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:25,158 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:25,158 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107097786] [2021-06-05 03:51:25,158 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:25,158 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:25,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:25,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:25,159 INFO L87 Difference]: Start difference. First operand 5129 states and 24329 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:25,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:25,269 INFO L93 Difference]: Finished difference Result 11896 states and 53170 transitions. [2021-06-05 03:51:25,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:25,270 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:25,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:25,297 INFO L225 Difference]: With dead ends: 11896 [2021-06-05 03:51:25,298 INFO L226 Difference]: Without dead ends: 11354 [2021-06-05 03:51:25,298 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 124.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:25,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11354 states. [2021-06-05 03:51:25,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11354 to 5239. [2021-06-05 03:51:25,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5239 states, 5238 states have (on average 4.722031309660176) internal successors, (24734), 5238 states have internal predecessors, (24734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:25,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5239 states to 5239 states and 24734 transitions. [2021-06-05 03:51:25,521 INFO L78 Accepts]: Start accepts. Automaton has 5239 states and 24734 transitions. Word has length 29 [2021-06-05 03:51:25,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:25,521 INFO L482 AbstractCegarLoop]: Abstraction has 5239 states and 24734 transitions. [2021-06-05 03:51:25,521 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:25,521 INFO L276 IsEmpty]: Start isEmpty. Operand 5239 states and 24734 transitions. [2021-06-05 03:51:25,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:25,529 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:25,529 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:25,529 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1497 [2021-06-05 03:51:25,529 INFO L430 AbstractCegarLoop]: === Iteration 1499 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:25,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:25,530 INFO L82 PathProgramCache]: Analyzing trace with hash 1244276201, now seen corresponding path program 1494 times [2021-06-05 03:51:25,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:25,530 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045063515] [2021-06-05 03:51:25,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:25,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:25,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:25,642 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:25,642 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045063515] [2021-06-05 03:51:25,642 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045063515] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:25,642 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:25,642 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:25,642 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120600661] [2021-06-05 03:51:25,642 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:25,642 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:25,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:25,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:25,642 INFO L87 Difference]: Start difference. First operand 5239 states and 24734 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:25,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:25,772 INFO L93 Difference]: Finished difference Result 11829 states and 52797 transitions. [2021-06-05 03:51:25,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:25,772 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:25,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:25,798 INFO L225 Difference]: With dead ends: 11829 [2021-06-05 03:51:25,798 INFO L226 Difference]: Without dead ends: 11204 [2021-06-05 03:51:25,798 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 138.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:25,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11204 states. [2021-06-05 03:51:26,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11204 to 5089. [2021-06-05 03:51:26,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5089 states, 5088 states have (on average 4.750196540880503) internal successors, (24169), 5088 states have internal predecessors, (24169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:26,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5089 states to 5089 states and 24169 transitions. [2021-06-05 03:51:26,021 INFO L78 Accepts]: Start accepts. Automaton has 5089 states and 24169 transitions. Word has length 29 [2021-06-05 03:51:26,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:26,021 INFO L482 AbstractCegarLoop]: Abstraction has 5089 states and 24169 transitions. [2021-06-05 03:51:26,021 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:26,021 INFO L276 IsEmpty]: Start isEmpty. Operand 5089 states and 24169 transitions. [2021-06-05 03:51:26,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:26,030 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:26,030 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:26,030 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1498 [2021-06-05 03:51:26,030 INFO L430 AbstractCegarLoop]: === Iteration 1500 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:26,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:26,030 INFO L82 PathProgramCache]: Analyzing trace with hash 811664169, now seen corresponding path program 1495 times [2021-06-05 03:51:26,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:26,030 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441580117] [2021-06-05 03:51:26,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:26,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:26,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:26,158 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:26,158 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441580117] [2021-06-05 03:51:26,158 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441580117] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:26,158 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:26,158 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:26,158 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85257255] [2021-06-05 03:51:26,158 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:26,158 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:26,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:26,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:26,158 INFO L87 Difference]: Start difference. First operand 5089 states and 24169 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:26,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:26,286 INFO L93 Difference]: Finished difference Result 11673 states and 52257 transitions. [2021-06-05 03:51:26,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:26,286 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:26,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:26,312 INFO L225 Difference]: With dead ends: 11673 [2021-06-05 03:51:26,312 INFO L226 Difference]: Without dead ends: 11258 [2021-06-05 03:51:26,312 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 153.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:26,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11258 states. [2021-06-05 03:51:26,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11258 to 5209. [2021-06-05 03:51:26,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5209 states, 5208 states have (on average 4.7413594470046085) internal successors, (24693), 5208 states have internal predecessors, (24693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:26,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5209 states to 5209 states and 24693 transitions. [2021-06-05 03:51:26,543 INFO L78 Accepts]: Start accepts. Automaton has 5209 states and 24693 transitions. Word has length 29 [2021-06-05 03:51:26,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:26,543 INFO L482 AbstractCegarLoop]: Abstraction has 5209 states and 24693 transitions. [2021-06-05 03:51:26,543 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:26,543 INFO L276 IsEmpty]: Start isEmpty. Operand 5209 states and 24693 transitions. [2021-06-05 03:51:26,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:26,551 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:26,551 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:26,551 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1499 [2021-06-05 03:51:26,551 INFO L430 AbstractCegarLoop]: === Iteration 1501 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:26,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:26,552 INFO L82 PathProgramCache]: Analyzing trace with hash -1728482519, now seen corresponding path program 1496 times [2021-06-05 03:51:26,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:26,552 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489995867] [2021-06-05 03:51:26,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:26,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:26,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:26,679 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:26,679 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489995867] [2021-06-05 03:51:26,680 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489995867] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:26,680 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:26,680 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:26,680 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165572210] [2021-06-05 03:51:26,680 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:26,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:26,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:26,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:26,680 INFO L87 Difference]: Start difference. First operand 5209 states and 24693 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:26,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:26,812 INFO L93 Difference]: Finished difference Result 11800 states and 52736 transitions. [2021-06-05 03:51:26,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:26,812 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:26,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:26,841 INFO L225 Difference]: With dead ends: 11800 [2021-06-05 03:51:26,841 INFO L226 Difference]: Without dead ends: 11178 [2021-06-05 03:51:26,841 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 136.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:26,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11178 states. [2021-06-05 03:51:27,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11178 to 5129. [2021-06-05 03:51:27,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5129 states, 5128 states have (on average 4.7451248049922) internal successors, (24333), 5128 states have internal predecessors, (24333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:27,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5129 states to 5129 states and 24333 transitions. [2021-06-05 03:51:27,056 INFO L78 Accepts]: Start accepts. Automaton has 5129 states and 24333 transitions. Word has length 29 [2021-06-05 03:51:27,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:27,056 INFO L482 AbstractCegarLoop]: Abstraction has 5129 states and 24333 transitions. [2021-06-05 03:51:27,056 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:27,056 INFO L276 IsEmpty]: Start isEmpty. Operand 5129 states and 24333 transitions. [2021-06-05 03:51:27,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:27,064 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:27,064 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:27,064 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1500 [2021-06-05 03:51:27,064 INFO L430 AbstractCegarLoop]: === Iteration 1502 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:27,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:27,064 INFO L82 PathProgramCache]: Analyzing trace with hash -1492771095, now seen corresponding path program 1497 times [2021-06-05 03:51:27,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:27,064 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121670049] [2021-06-05 03:51:27,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:27,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:27,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:27,174 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:27,174 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121670049] [2021-06-05 03:51:27,174 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121670049] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:27,174 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:27,174 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:27,174 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453093143] [2021-06-05 03:51:27,174 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:27,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:27,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:27,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:27,174 INFO L87 Difference]: Start difference. First operand 5129 states and 24333 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:27,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:27,290 INFO L93 Difference]: Finished difference Result 11570 states and 51798 transitions. [2021-06-05 03:51:27,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:27,290 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:27,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:27,318 INFO L225 Difference]: With dead ends: 11570 [2021-06-05 03:51:27,318 INFO L226 Difference]: Without dead ends: 11155 [2021-06-05 03:51:27,318 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 136.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:27,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11155 states. [2021-06-05 03:51:27,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11155 to 5177. [2021-06-05 03:51:27,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5177 states, 5176 states have (on average 4.735123647604327) internal successors, (24509), 5176 states have internal predecessors, (24509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:27,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5177 states to 5177 states and 24509 transitions. [2021-06-05 03:51:27,536 INFO L78 Accepts]: Start accepts. Automaton has 5177 states and 24509 transitions. Word has length 29 [2021-06-05 03:51:27,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:27,536 INFO L482 AbstractCegarLoop]: Abstraction has 5177 states and 24509 transitions. [2021-06-05 03:51:27,537 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:27,537 INFO L276 IsEmpty]: Start isEmpty. Operand 5177 states and 24509 transitions. [2021-06-05 03:51:27,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:27,545 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:27,545 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:27,545 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1501 [2021-06-05 03:51:27,545 INFO L430 AbstractCegarLoop]: === Iteration 1503 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:27,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:27,545 INFO L82 PathProgramCache]: Analyzing trace with hash 1671843339, now seen corresponding path program 1498 times [2021-06-05 03:51:27,545 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:27,545 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336408049] [2021-06-05 03:51:27,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:27,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:27,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:27,657 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:27,657 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336408049] [2021-06-05 03:51:27,657 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336408049] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:27,657 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:27,657 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:27,657 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623476816] [2021-06-05 03:51:27,657 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:27,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:27,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:27,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:27,658 INFO L87 Difference]: Start difference. First operand 5177 states and 24509 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:27,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:27,770 INFO L93 Difference]: Finished difference Result 11626 states and 52002 transitions. [2021-06-05 03:51:27,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:27,770 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:27,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:27,796 INFO L225 Difference]: With dead ends: 11626 [2021-06-05 03:51:27,796 INFO L226 Difference]: Without dead ends: 11107 [2021-06-05 03:51:27,796 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 137.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:27,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11107 states. [2021-06-05 03:51:27,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11107 to 5129. [2021-06-05 03:51:27,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5129 states, 5128 states have (on average 4.7404446177847115) internal successors, (24309), 5128 states have internal predecessors, (24309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:28,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5129 states to 5129 states and 24309 transitions. [2021-06-05 03:51:28,012 INFO L78 Accepts]: Start accepts. Automaton has 5129 states and 24309 transitions. Word has length 29 [2021-06-05 03:51:28,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:28,012 INFO L482 AbstractCegarLoop]: Abstraction has 5129 states and 24309 transitions. [2021-06-05 03:51:28,013 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:28,013 INFO L276 IsEmpty]: Start isEmpty. Operand 5129 states and 24309 transitions. [2021-06-05 03:51:28,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:28,021 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:28,021 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:28,021 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1502 [2021-06-05 03:51:28,021 INFO L430 AbstractCegarLoop]: === Iteration 1504 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:28,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:28,021 INFO L82 PathProgramCache]: Analyzing trace with hash 1738472971, now seen corresponding path program 1499 times [2021-06-05 03:51:28,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:28,021 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278282812] [2021-06-05 03:51:28,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:28,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:28,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:28,145 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:28,145 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278282812] [2021-06-05 03:51:28,145 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278282812] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:28,145 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:28,145 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:28,145 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255999761] [2021-06-05 03:51:28,145 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:28,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:28,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:28,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:28,145 INFO L87 Difference]: Start difference. First operand 5129 states and 24309 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:28,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:28,240 INFO L93 Difference]: Finished difference Result 11884 states and 53112 transitions. [2021-06-05 03:51:28,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:28,240 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:28,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:28,268 INFO L225 Difference]: With dead ends: 11884 [2021-06-05 03:51:28,269 INFO L226 Difference]: Without dead ends: 11342 [2021-06-05 03:51:28,269 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 132.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:28,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11342 states. [2021-06-05 03:51:28,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11342 to 5237. [2021-06-05 03:51:28,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5237 states, 5236 states have (on average 4.719060351413293) internal successors, (24709), 5236 states have internal predecessors, (24709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:28,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5237 states to 5237 states and 24709 transitions. [2021-06-05 03:51:28,501 INFO L78 Accepts]: Start accepts. Automaton has 5237 states and 24709 transitions. Word has length 29 [2021-06-05 03:51:28,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:28,501 INFO L482 AbstractCegarLoop]: Abstraction has 5237 states and 24709 transitions. [2021-06-05 03:51:28,501 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:28,501 INFO L276 IsEmpty]: Start isEmpty. Operand 5237 states and 24709 transitions. [2021-06-05 03:51:28,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:28,509 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:28,510 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:28,510 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1503 [2021-06-05 03:51:28,510 INFO L430 AbstractCegarLoop]: === Iteration 1505 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:28,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:28,510 INFO L82 PathProgramCache]: Analyzing trace with hash 1648713321, now seen corresponding path program 1500 times [2021-06-05 03:51:28,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:28,510 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386755277] [2021-06-05 03:51:28,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:28,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:28,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:28,633 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:28,633 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386755277] [2021-06-05 03:51:28,633 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386755277] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:28,633 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:28,633 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:28,633 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221689259] [2021-06-05 03:51:28,633 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:28,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:28,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:28,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:28,633 INFO L87 Difference]: Start difference. First operand 5237 states and 24709 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:28,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:28,746 INFO L93 Difference]: Finished difference Result 11813 states and 52729 transitions. [2021-06-05 03:51:28,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:28,746 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:28,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:28,772 INFO L225 Difference]: With dead ends: 11813 [2021-06-05 03:51:28,772 INFO L226 Difference]: Without dead ends: 11194 [2021-06-05 03:51:28,773 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 148.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:28,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11194 states. [2021-06-05 03:51:28,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11194 to 5089. [2021-06-05 03:51:28,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5089 states, 5088 states have (on average 4.74626572327044) internal successors, (24149), 5088 states have internal predecessors, (24149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:28,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5089 states to 5089 states and 24149 transitions. [2021-06-05 03:51:28,999 INFO L78 Accepts]: Start accepts. Automaton has 5089 states and 24149 transitions. Word has length 29 [2021-06-05 03:51:28,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:29,000 INFO L482 AbstractCegarLoop]: Abstraction has 5089 states and 24149 transitions. [2021-06-05 03:51:29,000 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:29,000 INFO L276 IsEmpty]: Start isEmpty. Operand 5089 states and 24149 transitions. [2021-06-05 03:51:29,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:29,007 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:29,007 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:29,007 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1504 [2021-06-05 03:51:29,007 INFO L430 AbstractCegarLoop]: === Iteration 1506 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:29,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:29,008 INFO L82 PathProgramCache]: Analyzing trace with hash -945054969, now seen corresponding path program 1501 times [2021-06-05 03:51:29,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:29,008 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910872440] [2021-06-05 03:51:29,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:29,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:29,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:29,122 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:29,122 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910872440] [2021-06-05 03:51:29,122 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910872440] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:29,122 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:29,122 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:29,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597675349] [2021-06-05 03:51:29,122 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:29,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:29,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:29,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:29,122 INFO L87 Difference]: Start difference. First operand 5089 states and 24149 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:29,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:29,247 INFO L93 Difference]: Finished difference Result 11427 states and 51199 transitions. [2021-06-05 03:51:29,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:29,247 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:29,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:29,274 INFO L225 Difference]: With dead ends: 11427 [2021-06-05 03:51:29,275 INFO L226 Difference]: Without dead ends: 11012 [2021-06-05 03:51:29,275 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 140.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:29,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11012 states. [2021-06-05 03:51:29,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11012 to 5161. [2021-06-05 03:51:29,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.738178294573643) internal successors, (24449), 5160 states have internal predecessors, (24449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:29,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24449 transitions. [2021-06-05 03:51:29,487 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24449 transitions. Word has length 29 [2021-06-05 03:51:29,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:29,487 INFO L482 AbstractCegarLoop]: Abstraction has 5161 states and 24449 transitions. [2021-06-05 03:51:29,487 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:29,487 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24449 transitions. [2021-06-05 03:51:29,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:29,494 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:29,495 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:29,495 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1505 [2021-06-05 03:51:29,495 INFO L430 AbstractCegarLoop]: === Iteration 1507 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:29,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:29,495 INFO L82 PathProgramCache]: Analyzing trace with hash -1459735895, now seen corresponding path program 1502 times [2021-06-05 03:51:29,495 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:29,495 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713810387] [2021-06-05 03:51:29,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:29,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:29,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:29,609 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:29,609 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713810387] [2021-06-05 03:51:29,609 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713810387] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:29,609 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:29,609 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:29,609 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668820628] [2021-06-05 03:51:29,610 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:29,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:29,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:29,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:29,610 INFO L87 Difference]: Start difference. First operand 5161 states and 24449 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:29,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:29,724 INFO L93 Difference]: Finished difference Result 11487 states and 51415 transitions. [2021-06-05 03:51:29,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:29,724 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:29,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:29,749 INFO L225 Difference]: With dead ends: 11487 [2021-06-05 03:51:29,750 INFO L226 Difference]: Without dead ends: 10964 [2021-06-05 03:51:29,750 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 139.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:29,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10964 states. [2021-06-05 03:51:29,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10964 to 5113. [2021-06-05 03:51:29,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5113 states, 5112 states have (on average 4.743544600938967) internal successors, (24249), 5112 states have internal predecessors, (24249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:29,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5113 states to 5113 states and 24249 transitions. [2021-06-05 03:51:29,964 INFO L78 Accepts]: Start accepts. Automaton has 5113 states and 24249 transitions. Word has length 29 [2021-06-05 03:51:29,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:29,964 INFO L482 AbstractCegarLoop]: Abstraction has 5113 states and 24249 transitions. [2021-06-05 03:51:29,964 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:29,964 INFO L276 IsEmpty]: Start isEmpty. Operand 5113 states and 24249 transitions. [2021-06-05 03:51:29,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:29,972 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:29,972 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:29,972 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1506 [2021-06-05 03:51:29,972 INFO L430 AbstractCegarLoop]: === Iteration 1508 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:29,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:29,973 INFO L82 PathProgramCache]: Analyzing trace with hash -1425957015, now seen corresponding path program 1503 times [2021-06-05 03:51:29,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:29,973 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095538854] [2021-06-05 03:51:29,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:29,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:30,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:30,075 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:30,075 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095538854] [2021-06-05 03:51:30,075 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095538854] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:30,075 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:30,075 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:30,075 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63872451] [2021-06-05 03:51:30,075 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:30,075 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:30,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:30,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:30,075 INFO L87 Difference]: Start difference. First operand 5113 states and 24249 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:30,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:30,184 INFO L93 Difference]: Finished difference Result 11423 states and 51163 transitions. [2021-06-05 03:51:30,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:30,185 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:30,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:30,209 INFO L225 Difference]: With dead ends: 11423 [2021-06-05 03:51:30,209 INFO L226 Difference]: Without dead ends: 11008 [2021-06-05 03:51:30,209 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:30,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11008 states. [2021-06-05 03:51:30,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11008 to 5161. [2021-06-05 03:51:30,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.733527131782946) internal successors, (24425), 5160 states have internal predecessors, (24425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:30,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24425 transitions. [2021-06-05 03:51:30,438 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24425 transitions. Word has length 29 [2021-06-05 03:51:30,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:30,439 INFO L482 AbstractCegarLoop]: Abstraction has 5161 states and 24425 transitions. [2021-06-05 03:51:30,439 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:30,439 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24425 transitions. [2021-06-05 03:51:30,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:30,447 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:30,447 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:30,447 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1507 [2021-06-05 03:51:30,447 INFO L430 AbstractCegarLoop]: === Iteration 1509 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:30,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:30,447 INFO L82 PathProgramCache]: Analyzing trace with hash 257219113, now seen corresponding path program 1504 times [2021-06-05 03:51:30,447 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:30,448 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498833770] [2021-06-05 03:51:30,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:30,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:30,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:30,549 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:30,549 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498833770] [2021-06-05 03:51:30,549 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498833770] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:30,549 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:30,549 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:30,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186352302] [2021-06-05 03:51:30,550 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:30,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:30,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:30,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:30,550 INFO L87 Difference]: Start difference. First operand 5161 states and 24425 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:30,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:30,660 INFO L93 Difference]: Finished difference Result 11479 states and 51367 transitions. [2021-06-05 03:51:30,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:30,660 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:30,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:30,684 INFO L225 Difference]: With dead ends: 11479 [2021-06-05 03:51:30,684 INFO L226 Difference]: Without dead ends: 10960 [2021-06-05 03:51:30,684 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 127.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:30,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10960 states. [2021-06-05 03:51:30,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10960 to 5113. [2021-06-05 03:51:30,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5113 states, 5112 states have (on average 4.738849765258216) internal successors, (24225), 5112 states have internal predecessors, (24225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:30,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5113 states to 5113 states and 24225 transitions. [2021-06-05 03:51:30,904 INFO L78 Accepts]: Start accepts. Automaton has 5113 states and 24225 transitions. Word has length 29 [2021-06-05 03:51:30,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:30,905 INFO L482 AbstractCegarLoop]: Abstraction has 5113 states and 24225 transitions. [2021-06-05 03:51:30,905 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:30,905 INFO L276 IsEmpty]: Start isEmpty. Operand 5113 states and 24225 transitions. [2021-06-05 03:51:30,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:30,913 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:30,913 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:30,913 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1508 [2021-06-05 03:51:30,913 INFO L430 AbstractCegarLoop]: === Iteration 1510 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:30,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:30,913 INFO L82 PathProgramCache]: Analyzing trace with hash -1102110389, now seen corresponding path program 1505 times [2021-06-05 03:51:30,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:30,913 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323979911] [2021-06-05 03:51:30,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:30,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:31,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:31,014 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:31,014 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323979911] [2021-06-05 03:51:31,014 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323979911] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:31,014 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:31,015 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:31,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779905003] [2021-06-05 03:51:31,015 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:31,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:31,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:31,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:31,015 INFO L87 Difference]: Start difference. First operand 5113 states and 24225 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:31,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:31,126 INFO L93 Difference]: Finished difference Result 11571 states and 51807 transitions. [2021-06-05 03:51:31,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:31,126 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:31,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:31,150 INFO L225 Difference]: With dead ends: 11571 [2021-06-05 03:51:31,150 INFO L226 Difference]: Without dead ends: 11096 [2021-06-05 03:51:31,150 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 126.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:31,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11096 states. [2021-06-05 03:51:31,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11096 to 5189. [2021-06-05 03:51:31,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5189 states, 5188 states have (on average 4.724942174248265) internal successors, (24513), 5188 states have internal predecessors, (24513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:31,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5189 states to 5189 states and 24513 transitions. [2021-06-05 03:51:31,386 INFO L78 Accepts]: Start accepts. Automaton has 5189 states and 24513 transitions. Word has length 29 [2021-06-05 03:51:31,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:31,386 INFO L482 AbstractCegarLoop]: Abstraction has 5189 states and 24513 transitions. [2021-06-05 03:51:31,386 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:31,386 INFO L276 IsEmpty]: Start isEmpty. Operand 5189 states and 24513 transitions. [2021-06-05 03:51:31,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:31,395 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:31,395 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:31,395 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1509 [2021-06-05 03:51:31,395 INFO L430 AbstractCegarLoop]: === Iteration 1511 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:31,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:31,395 INFO L82 PathProgramCache]: Analyzing trace with hash 1149519913, now seen corresponding path program 1506 times [2021-06-05 03:51:31,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:31,396 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420589080] [2021-06-05 03:51:31,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:31,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:31,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:31,499 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:31,499 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420589080] [2021-06-05 03:51:31,499 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420589080] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:31,499 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:31,499 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:31,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416439330] [2021-06-05 03:51:31,499 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:31,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:31,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:31,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:31,499 INFO L87 Difference]: Start difference. First operand 5189 states and 24513 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:31,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:31,618 INFO L93 Difference]: Finished difference Result 11567 states and 51719 transitions. [2021-06-05 03:51:31,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:31,618 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:31,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:31,643 INFO L225 Difference]: With dead ends: 11567 [2021-06-05 03:51:31,644 INFO L226 Difference]: Without dead ends: 10996 [2021-06-05 03:51:31,644 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 129.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:31,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10996 states. [2021-06-05 03:51:31,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10996 to 5089. [2021-06-05 03:51:31,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5089 states, 5088 states have (on average 4.7439072327044025) internal successors, (24137), 5088 states have internal predecessors, (24137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:31,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5089 states to 5089 states and 24137 transitions. [2021-06-05 03:51:31,868 INFO L78 Accepts]: Start accepts. Automaton has 5089 states and 24137 transitions. Word has length 29 [2021-06-05 03:51:31,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:31,868 INFO L482 AbstractCegarLoop]: Abstraction has 5089 states and 24137 transitions. [2021-06-05 03:51:31,868 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:31,868 INFO L276 IsEmpty]: Start isEmpty. Operand 5089 states and 24137 transitions. [2021-06-05 03:51:31,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:31,877 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:31,877 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:31,877 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1510 [2021-06-05 03:51:31,877 INFO L430 AbstractCegarLoop]: === Iteration 1512 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:31,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:31,877 INFO L82 PathProgramCache]: Analyzing trace with hash 782827851, now seen corresponding path program 1507 times [2021-06-05 03:51:31,877 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:31,877 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176583092] [2021-06-05 03:51:31,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:31,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:31,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:31,979 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:31,979 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176583092] [2021-06-05 03:51:31,979 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176583092] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:31,979 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:31,980 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:31,980 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983344676] [2021-06-05 03:51:31,980 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:31,980 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:31,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:31,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:31,980 INFO L87 Difference]: Start difference. First operand 5089 states and 24137 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:32,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:32,087 INFO L93 Difference]: Finished difference Result 12022 states and 53791 transitions. [2021-06-05 03:51:32,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:32,087 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:32,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:32,113 INFO L225 Difference]: With dead ends: 12022 [2021-06-05 03:51:32,113 INFO L226 Difference]: Without dead ends: 11480 [2021-06-05 03:51:32,113 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 111.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:32,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11480 states. [2021-06-05 03:51:32,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11480 to 5253. [2021-06-05 03:51:32,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5253 states, 5252 states have (on average 4.726389946686976) internal successors, (24823), 5252 states have internal predecessors, (24823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:32,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5253 states to 5253 states and 24823 transitions. [2021-06-05 03:51:32,342 INFO L78 Accepts]: Start accepts. Automaton has 5253 states and 24823 transitions. Word has length 29 [2021-06-05 03:51:32,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:32,342 INFO L482 AbstractCegarLoop]: Abstraction has 5253 states and 24823 transitions. [2021-06-05 03:51:32,342 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:32,342 INFO L276 IsEmpty]: Start isEmpty. Operand 5253 states and 24823 transitions. [2021-06-05 03:51:32,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:32,351 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:32,351 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:32,351 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1511 [2021-06-05 03:51:32,351 INFO L430 AbstractCegarLoop]: === Iteration 1513 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:32,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:32,351 INFO L82 PathProgramCache]: Analyzing trace with hash 41875753, now seen corresponding path program 1508 times [2021-06-05 03:51:32,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:32,351 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033393632] [2021-06-05 03:51:32,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:32,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:32,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:32,456 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:32,456 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033393632] [2021-06-05 03:51:32,456 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033393632] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:32,456 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:32,456 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:32,456 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115157241] [2021-06-05 03:51:32,457 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:32,457 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:32,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:32,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:32,457 INFO L87 Difference]: Start difference. First operand 5253 states and 24823 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:32,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:32,575 INFO L93 Difference]: Finished difference Result 11955 states and 53418 transitions. [2021-06-05 03:51:32,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:32,576 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:32,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:32,603 INFO L225 Difference]: With dead ends: 11955 [2021-06-05 03:51:32,603 INFO L226 Difference]: Without dead ends: 11370 [2021-06-05 03:51:32,603 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 131.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:32,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11370 states. [2021-06-05 03:51:32,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11370 to 5143. [2021-06-05 03:51:32,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.738234150136134) internal successors, (24364), 5142 states have internal predecessors, (24364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:32,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24364 transitions. [2021-06-05 03:51:32,837 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24364 transitions. Word has length 29 [2021-06-05 03:51:32,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:32,837 INFO L482 AbstractCegarLoop]: Abstraction has 5143 states and 24364 transitions. [2021-06-05 03:51:32,837 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:32,838 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24364 transitions. [2021-06-05 03:51:32,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:32,846 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:32,846 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:32,846 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1512 [2021-06-05 03:51:32,846 INFO L430 AbstractCegarLoop]: === Iteration 1514 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:32,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:32,847 INFO L82 PathProgramCache]: Analyzing trace with hash -63969111, now seen corresponding path program 1509 times [2021-06-05 03:51:32,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:32,847 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386923872] [2021-06-05 03:51:32,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:32,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:32,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:32,963 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:32,963 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386923872] [2021-06-05 03:51:32,963 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386923872] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:32,963 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:32,963 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:32,963 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784924503] [2021-06-05 03:51:32,963 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:32,963 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:32,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:32,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:32,963 INFO L87 Difference]: Start difference. First operand 5143 states and 24364 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:33,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:33,058 INFO L93 Difference]: Finished difference Result 12016 states and 53718 transitions. [2021-06-05 03:51:33,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:33,058 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:33,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:33,086 INFO L225 Difference]: With dead ends: 12016 [2021-06-05 03:51:33,086 INFO L226 Difference]: Without dead ends: 11474 [2021-06-05 03:51:33,086 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 125.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:33,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11474 states. [2021-06-05 03:51:33,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11474 to 5251. [2021-06-05 03:51:33,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5251 states, 5250 states have (on average 4.716952380952381) internal successors, (24764), 5250 states have internal predecessors, (24764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:33,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5251 states to 5251 states and 24764 transitions. [2021-06-05 03:51:33,314 INFO L78 Accepts]: Start accepts. Automaton has 5251 states and 24764 transitions. Word has length 29 [2021-06-05 03:51:33,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:33,314 INFO L482 AbstractCegarLoop]: Abstraction has 5251 states and 24764 transitions. [2021-06-05 03:51:33,314 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:33,314 INFO L276 IsEmpty]: Start isEmpty. Operand 5251 states and 24764 transitions. [2021-06-05 03:51:33,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:33,323 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:33,323 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:33,323 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1513 [2021-06-05 03:51:33,323 INFO L430 AbstractCegarLoop]: === Iteration 1515 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:33,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:33,323 INFO L82 PathProgramCache]: Analyzing trace with hash -1864085079, now seen corresponding path program 1510 times [2021-06-05 03:51:33,323 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:33,323 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142163517] [2021-06-05 03:51:33,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:33,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:33,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:33,440 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:33,440 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142163517] [2021-06-05 03:51:33,441 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142163517] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:33,441 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:33,441 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:33,441 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110948475] [2021-06-05 03:51:33,441 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:33,441 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:33,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:33,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:33,441 INFO L87 Difference]: Start difference. First operand 5251 states and 24764 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:33,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:33,551 INFO L93 Difference]: Finished difference Result 11945 states and 53335 transitions. [2021-06-05 03:51:33,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:33,551 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:33,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:33,577 INFO L225 Difference]: With dead ends: 11945 [2021-06-05 03:51:33,577 INFO L226 Difference]: Without dead ends: 11366 [2021-06-05 03:51:33,577 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 142.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:33,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11366 states. [2021-06-05 03:51:33,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11366 to 5143. [2021-06-05 03:51:33,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.7277323998444185) internal successors, (24310), 5142 states have internal predecessors, (24310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:33,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24310 transitions. [2021-06-05 03:51:33,807 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24310 transitions. Word has length 29 [2021-06-05 03:51:33,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:33,807 INFO L482 AbstractCegarLoop]: Abstraction has 5143 states and 24310 transitions. [2021-06-05 03:51:33,807 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:33,807 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24310 transitions. [2021-06-05 03:51:33,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:33,815 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:33,815 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:33,815 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1514 [2021-06-05 03:51:33,815 INFO L430 AbstractCegarLoop]: === Iteration 1516 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:33,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:33,816 INFO L82 PathProgramCache]: Analyzing trace with hash -317801977, now seen corresponding path program 1511 times [2021-06-05 03:51:33,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:33,816 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197357227] [2021-06-05 03:51:33,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:33,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:33,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:33,919 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:33,919 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197357227] [2021-06-05 03:51:33,919 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197357227] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:33,919 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:33,920 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:33,920 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835818337] [2021-06-05 03:51:33,920 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:33,920 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:33,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:33,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:33,920 INFO L87 Difference]: Start difference. First operand 5143 states and 24310 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:34,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:34,031 INFO L93 Difference]: Finished difference Result 11850 states and 52994 transitions. [2021-06-05 03:51:34,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:34,032 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:34,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:34,057 INFO L225 Difference]: With dead ends: 11850 [2021-06-05 03:51:34,057 INFO L226 Difference]: Without dead ends: 11375 [2021-06-05 03:51:34,057 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 129.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:34,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11375 states. [2021-06-05 03:51:34,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11375 to 5219. [2021-06-05 03:51:34,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5219 states, 5218 states have (on average 4.714066692219241) internal successors, (24598), 5218 states have internal predecessors, (24598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:34,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5219 states to 5219 states and 24598 transitions. [2021-06-05 03:51:34,284 INFO L78 Accepts]: Start accepts. Automaton has 5219 states and 24598 transitions. Word has length 29 [2021-06-05 03:51:34,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:34,284 INFO L482 AbstractCegarLoop]: Abstraction has 5219 states and 24598 transitions. [2021-06-05 03:51:34,284 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:34,284 INFO L276 IsEmpty]: Start isEmpty. Operand 5219 states and 24598 transitions. [2021-06-05 03:51:34,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:34,292 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:34,292 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:34,292 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1515 [2021-06-05 03:51:34,292 INFO L430 AbstractCegarLoop]: === Iteration 1517 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:34,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:34,292 INFO L82 PathProgramCache]: Analyzing trace with hash 763260649, now seen corresponding path program 1512 times [2021-06-05 03:51:34,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:34,292 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635144128] [2021-06-05 03:51:34,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:34,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:34,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:34,396 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:34,396 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635144128] [2021-06-05 03:51:34,396 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635144128] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:34,396 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:34,396 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:34,396 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016636622] [2021-06-05 03:51:34,396 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:34,396 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:34,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:34,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:34,396 INFO L87 Difference]: Start difference. First operand 5219 states and 24598 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:34,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:34,515 INFO L93 Difference]: Finished difference Result 11846 states and 52906 transitions. [2021-06-05 03:51:34,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:34,515 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:34,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:34,541 INFO L225 Difference]: With dead ends: 11846 [2021-06-05 03:51:34,542 INFO L226 Difference]: Without dead ends: 11225 [2021-06-05 03:51:34,542 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 129.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:34,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11225 states. [2021-06-05 03:51:34,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11225 to 5069. [2021-06-05 03:51:34,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5069 states, 5068 states have (on average 4.748816101026046) internal successors, (24067), 5068 states have internal predecessors, (24067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:34,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5069 states to 5069 states and 24067 transitions. [2021-06-05 03:51:34,778 INFO L78 Accepts]: Start accepts. Automaton has 5069 states and 24067 transitions. Word has length 29 [2021-06-05 03:51:34,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:34,778 INFO L482 AbstractCegarLoop]: Abstraction has 5069 states and 24067 transitions. [2021-06-05 03:51:34,778 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:34,778 INFO L276 IsEmpty]: Start isEmpty. Operand 5069 states and 24067 transitions. [2021-06-05 03:51:34,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:34,786 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:34,786 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:34,786 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1516 [2021-06-05 03:51:34,786 INFO L430 AbstractCegarLoop]: === Iteration 1518 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:34,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:34,786 INFO L82 PathProgramCache]: Analyzing trace with hash 1049420295, now seen corresponding path program 1513 times [2021-06-05 03:51:34,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:34,787 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651592195] [2021-06-05 03:51:34,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:34,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:34,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:34,911 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:34,911 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651592195] [2021-06-05 03:51:34,911 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651592195] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:34,911 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:34,911 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:34,911 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486582050] [2021-06-05 03:51:34,911 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:34,911 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:34,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:34,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:34,911 INFO L87 Difference]: Start difference. First operand 5069 states and 24067 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:35,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:35,036 INFO L93 Difference]: Finished difference Result 11220 states and 50284 transitions. [2021-06-05 03:51:35,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:35,036 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:35,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:35,063 INFO L225 Difference]: With dead ends: 11220 [2021-06-05 03:51:35,063 INFO L226 Difference]: Without dead ends: 10805 [2021-06-05 03:51:35,063 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 150.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:35,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10805 states. [2021-06-05 03:51:35,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10805 to 5153. [2021-06-05 03:51:35,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 5152 states have (on average 4.742818322981367) internal successors, (24435), 5152 states have internal predecessors, (24435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:35,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 24435 transitions. [2021-06-05 03:51:35,291 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 24435 transitions. Word has length 29 [2021-06-05 03:51:35,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:35,291 INFO L482 AbstractCegarLoop]: Abstraction has 5153 states and 24435 transitions. [2021-06-05 03:51:35,291 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:35,291 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 24435 transitions. [2021-06-05 03:51:35,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:35,299 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:35,299 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:35,299 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1517 [2021-06-05 03:51:35,299 INFO L430 AbstractCegarLoop]: === Iteration 1519 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:35,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:35,299 INFO L82 PathProgramCache]: Analyzing trace with hash 1766083241, now seen corresponding path program 1514 times [2021-06-05 03:51:35,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:35,299 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132807253] [2021-06-05 03:51:35,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:35,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:35,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:35,423 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:35,423 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132807253] [2021-06-05 03:51:35,423 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132807253] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:35,423 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:35,423 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:35,423 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92582829] [2021-06-05 03:51:35,423 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:35,423 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:35,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:35,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:35,423 INFO L87 Difference]: Start difference. First operand 5153 states and 24435 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:35,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:35,545 INFO L93 Difference]: Finished difference Result 11282 states and 50505 transitions. [2021-06-05 03:51:35,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:35,545 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:35,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:35,570 INFO L225 Difference]: With dead ends: 11282 [2021-06-05 03:51:35,570 INFO L226 Difference]: Without dead ends: 10757 [2021-06-05 03:51:35,570 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 150.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:35,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10757 states. [2021-06-05 03:51:35,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10757 to 5105. [2021-06-05 03:51:35,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5105 states, 5104 states have (on average 4.748236677115988) internal successors, (24235), 5104 states have internal predecessors, (24235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:35,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 24235 transitions. [2021-06-05 03:51:35,865 INFO L78 Accepts]: Start accepts. Automaton has 5105 states and 24235 transitions. Word has length 29 [2021-06-05 03:51:35,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:35,865 INFO L482 AbstractCegarLoop]: Abstraction has 5105 states and 24235 transitions. [2021-06-05 03:51:35,865 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:35,865 INFO L276 IsEmpty]: Start isEmpty. Operand 5105 states and 24235 transitions. [2021-06-05 03:51:35,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:35,874 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:35,874 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:35,874 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1518 [2021-06-05 03:51:35,874 INFO L430 AbstractCegarLoop]: === Iteration 1520 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:35,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:35,874 INFO L82 PathProgramCache]: Analyzing trace with hash -124539415, now seen corresponding path program 1515 times [2021-06-05 03:51:35,874 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:35,874 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779127378] [2021-06-05 03:51:35,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:35,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:36,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:36,000 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:36,000 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779127378] [2021-06-05 03:51:36,000 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779127378] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:36,000 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:36,000 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:36,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411226023] [2021-06-05 03:51:36,000 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:36,000 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:36,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:36,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:36,001 INFO L87 Difference]: Start difference. First operand 5105 states and 24235 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:36,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:36,118 INFO L93 Difference]: Finished difference Result 11218 states and 50255 transitions. [2021-06-05 03:51:36,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:36,119 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:36,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:36,144 INFO L225 Difference]: With dead ends: 11218 [2021-06-05 03:51:36,145 INFO L226 Difference]: Without dead ends: 10803 [2021-06-05 03:51:36,145 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 152.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:36,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10803 states. [2021-06-05 03:51:36,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10803 to 5153. [2021-06-05 03:51:36,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 5152 states have (on average 4.738159937888199) internal successors, (24411), 5152 states have internal predecessors, (24411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:36,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 24411 transitions. [2021-06-05 03:51:36,364 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 24411 transitions. Word has length 29 [2021-06-05 03:51:36,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:36,365 INFO L482 AbstractCegarLoop]: Abstraction has 5153 states and 24411 transitions. [2021-06-05 03:51:36,365 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:36,365 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 24411 transitions. [2021-06-05 03:51:36,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:36,373 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:36,373 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:36,373 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1519 [2021-06-05 03:51:36,373 INFO L430 AbstractCegarLoop]: === Iteration 1521 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:36,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:36,373 INFO L82 PathProgramCache]: Analyzing trace with hash 905025961, now seen corresponding path program 1516 times [2021-06-05 03:51:36,373 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:36,373 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819228354] [2021-06-05 03:51:36,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:36,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:36,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:36,499 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:36,499 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819228354] [2021-06-05 03:51:36,499 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819228354] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:36,499 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:36,499 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:36,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454270858] [2021-06-05 03:51:36,499 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:36,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:36,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:36,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:36,499 INFO L87 Difference]: Start difference. First operand 5153 states and 24411 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:36,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:36,622 INFO L93 Difference]: Finished difference Result 11278 states and 50471 transitions. [2021-06-05 03:51:36,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:36,622 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:36,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:36,648 INFO L225 Difference]: With dead ends: 11278 [2021-06-05 03:51:36,648 INFO L226 Difference]: Without dead ends: 10755 [2021-06-05 03:51:36,649 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 151.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:36,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10755 states. [2021-06-05 03:51:36,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10755 to 5105. [2021-06-05 03:51:36,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5105 states, 5104 states have (on average 4.743534482758621) internal successors, (24211), 5104 states have internal predecessors, (24211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:36,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 24211 transitions. [2021-06-05 03:51:36,877 INFO L78 Accepts]: Start accepts. Automaton has 5105 states and 24211 transitions. Word has length 29 [2021-06-05 03:51:36,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:36,877 INFO L482 AbstractCegarLoop]: Abstraction has 5105 states and 24211 transitions. [2021-06-05 03:51:36,877 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:36,877 INFO L276 IsEmpty]: Start isEmpty. Operand 5105 states and 24211 transitions. [2021-06-05 03:51:36,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:36,885 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:36,885 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:36,885 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1520 [2021-06-05 03:51:36,885 INFO L430 AbstractCegarLoop]: === Iteration 1522 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:36,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:36,885 INFO L82 PathProgramCache]: Analyzing trace with hash 1078952395, now seen corresponding path program 1517 times [2021-06-05 03:51:36,885 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:36,885 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171513978] [2021-06-05 03:51:36,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:36,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:36,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:36,999 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:37,000 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171513978] [2021-06-05 03:51:37,000 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171513978] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:37,000 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:37,000 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:37,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078214149] [2021-06-05 03:51:37,000 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:37,000 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:37,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:37,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:37,000 INFO L87 Difference]: Start difference. First operand 5105 states and 24211 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:37,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:37,117 INFO L93 Difference]: Finished difference Result 11372 states and 50916 transitions. [2021-06-05 03:51:37,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:37,118 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:37,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:37,145 INFO L225 Difference]: With dead ends: 11372 [2021-06-05 03:51:37,145 INFO L226 Difference]: Without dead ends: 10895 [2021-06-05 03:51:37,145 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 140.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:37,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10895 states. [2021-06-05 03:51:37,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10895 to 5183. [2021-06-05 03:51:37,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5183 states, 5182 states have (on average 4.728676186800463) internal successors, (24504), 5182 states have internal predecessors, (24504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:37,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5183 states to 5183 states and 24504 transitions. [2021-06-05 03:51:37,373 INFO L78 Accepts]: Start accepts. Automaton has 5183 states and 24504 transitions. Word has length 29 [2021-06-05 03:51:37,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:37,373 INFO L482 AbstractCegarLoop]: Abstraction has 5183 states and 24504 transitions. [2021-06-05 03:51:37,373 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:37,373 INFO L276 IsEmpty]: Start isEmpty. Operand 5183 states and 24504 transitions. [2021-06-05 03:51:37,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:37,381 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:37,381 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:37,381 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1521 [2021-06-05 03:51:37,381 INFO L430 AbstractCegarLoop]: === Iteration 1523 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:37,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:37,382 INFO L82 PathProgramCache]: Analyzing trace with hash -313192151, now seen corresponding path program 1518 times [2021-06-05 03:51:37,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:37,382 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777035577] [2021-06-05 03:51:37,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:37,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:37,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:37,496 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:37,497 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777035577] [2021-06-05 03:51:37,497 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777035577] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:37,497 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:37,497 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:37,497 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107906105] [2021-06-05 03:51:37,497 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:37,497 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:37,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:37,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:37,497 INFO L87 Difference]: Start difference. First operand 5183 states and 24504 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:37,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:37,628 INFO L93 Difference]: Finished difference Result 11370 states and 50833 transitions. [2021-06-05 03:51:37,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:37,629 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:37,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:37,656 INFO L225 Difference]: With dead ends: 11370 [2021-06-05 03:51:37,656 INFO L226 Difference]: Without dead ends: 10793 [2021-06-05 03:51:37,656 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 141.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:37,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10793 states. [2021-06-05 03:51:37,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10793 to 5081. [2021-06-05 03:51:37,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5081 states, 5080 states have (on average 4.748622047244094) internal successors, (24123), 5080 states have internal predecessors, (24123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:37,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5081 states to 5081 states and 24123 transitions. [2021-06-05 03:51:37,868 INFO L78 Accepts]: Start accepts. Automaton has 5081 states and 24123 transitions. Word has length 29 [2021-06-05 03:51:37,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:37,868 INFO L482 AbstractCegarLoop]: Abstraction has 5081 states and 24123 transitions. [2021-06-05 03:51:37,868 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:37,869 INFO L276 IsEmpty]: Start isEmpty. Operand 5081 states and 24123 transitions. [2021-06-05 03:51:37,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:37,876 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:37,876 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:37,876 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1522 [2021-06-05 03:51:37,876 INFO L430 AbstractCegarLoop]: === Iteration 1524 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:37,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:37,876 INFO L82 PathProgramCache]: Analyzing trace with hash -1535945239, now seen corresponding path program 1519 times [2021-06-05 03:51:37,876 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:37,876 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567234920] [2021-06-05 03:51:37,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:37,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:37,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:37,992 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:37,992 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567234920] [2021-06-05 03:51:37,992 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567234920] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:37,992 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:37,992 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:37,992 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629091758] [2021-06-05 03:51:37,992 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:37,992 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:37,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:37,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:37,992 INFO L87 Difference]: Start difference. First operand 5081 states and 24123 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:38,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:38,119 INFO L93 Difference]: Finished difference Result 11214 states and 50253 transitions. [2021-06-05 03:51:38,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:38,120 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:38,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:38,147 INFO L225 Difference]: With dead ends: 11214 [2021-06-05 03:51:38,147 INFO L226 Difference]: Without dead ends: 10799 [2021-06-05 03:51:38,147 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 141.9ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:38,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10799 states. [2021-06-05 03:51:38,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10799 to 5153. [2021-06-05 03:51:38,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 5152 states have (on average 4.740489130434782) internal successors, (24423), 5152 states have internal predecessors, (24423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:38,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 24423 transitions. [2021-06-05 03:51:38,364 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 24423 transitions. Word has length 29 [2021-06-05 03:51:38,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:38,364 INFO L482 AbstractCegarLoop]: Abstraction has 5153 states and 24423 transitions. [2021-06-05 03:51:38,364 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:38,364 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 24423 transitions. [2021-06-05 03:51:38,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:38,372 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:38,372 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:38,372 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1523 [2021-06-05 03:51:38,372 INFO L430 AbstractCegarLoop]: === Iteration 1525 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:38,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:38,373 INFO L82 PathProgramCache]: Analyzing trace with hash -819282293, now seen corresponding path program 1520 times [2021-06-05 03:51:38,373 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:38,373 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623187941] [2021-06-05 03:51:38,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:38,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:38,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:38,488 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:38,488 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623187941] [2021-06-05 03:51:38,488 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623187941] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:38,488 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:38,488 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:38,488 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121542822] [2021-06-05 03:51:38,489 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:38,489 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:38,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:38,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:38,489 INFO L87 Difference]: Start difference. First operand 5153 states and 24423 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:38,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:38,597 INFO L93 Difference]: Finished difference Result 11276 states and 50474 transitions. [2021-06-05 03:51:38,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:38,597 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:38,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:38,623 INFO L225 Difference]: With dead ends: 11276 [2021-06-05 03:51:38,623 INFO L226 Difference]: Without dead ends: 10751 [2021-06-05 03:51:38,623 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 142.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:38,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10751 states. [2021-06-05 03:51:38,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10751 to 5105. [2021-06-05 03:51:38,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5105 states, 5104 states have (on average 4.745885579937304) internal successors, (24223), 5104 states have internal predecessors, (24223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:38,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 24223 transitions. [2021-06-05 03:51:38,849 INFO L78 Accepts]: Start accepts. Automaton has 5105 states and 24223 transitions. Word has length 29 [2021-06-05 03:51:38,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:38,849 INFO L482 AbstractCegarLoop]: Abstraction has 5105 states and 24223 transitions. [2021-06-05 03:51:38,850 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:38,850 INFO L276 IsEmpty]: Start isEmpty. Operand 5105 states and 24223 transitions. [2021-06-05 03:51:38,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:38,858 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:38,858 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:38,858 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1524 [2021-06-05 03:51:38,858 INFO L430 AbstractCegarLoop]: === Iteration 1526 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:38,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:38,858 INFO L82 PathProgramCache]: Analyzing trace with hash -1136032407, now seen corresponding path program 1521 times [2021-06-05 03:51:38,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:38,858 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885418927] [2021-06-05 03:51:38,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:38,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:38,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:38,959 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:38,959 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885418927] [2021-06-05 03:51:38,959 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885418927] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:38,959 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:38,959 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:38,959 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782485258] [2021-06-05 03:51:38,960 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:38,960 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:38,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:38,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:38,960 INFO L87 Difference]: Start difference. First operand 5105 states and 24223 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:39,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:39,074 INFO L93 Difference]: Finished difference Result 11208 states and 50212 transitions. [2021-06-05 03:51:39,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:39,075 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:39,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:39,101 INFO L225 Difference]: With dead ends: 11208 [2021-06-05 03:51:39,101 INFO L226 Difference]: Without dead ends: 10793 [2021-06-05 03:51:39,101 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 127.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:39,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10793 states. [2021-06-05 03:51:39,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10793 to 5153. [2021-06-05 03:51:39,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 5152 states have (on average 4.735830745341615) internal successors, (24399), 5152 states have internal predecessors, (24399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:39,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 24399 transitions. [2021-06-05 03:51:39,331 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 24399 transitions. Word has length 29 [2021-06-05 03:51:39,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:39,331 INFO L482 AbstractCegarLoop]: Abstraction has 5153 states and 24399 transitions. [2021-06-05 03:51:39,331 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:39,331 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 24399 transitions. [2021-06-05 03:51:39,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:39,340 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:39,340 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:39,340 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1525 [2021-06-05 03:51:39,340 INFO L430 AbstractCegarLoop]: === Iteration 1527 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:39,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:39,340 INFO L82 PathProgramCache]: Analyzing trace with hash -1991421655, now seen corresponding path program 1522 times [2021-06-05 03:51:39,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:39,340 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793924479] [2021-06-05 03:51:39,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:39,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:39,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:39,442 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:39,442 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793924479] [2021-06-05 03:51:39,442 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793924479] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:39,442 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:39,442 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:39,442 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122255213] [2021-06-05 03:51:39,442 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:39,442 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:39,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:39,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:39,442 INFO L87 Difference]: Start difference. First operand 5153 states and 24399 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:39,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:39,556 INFO L93 Difference]: Finished difference Result 11264 states and 50416 transitions. [2021-06-05 03:51:39,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:39,556 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:39,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:39,583 INFO L225 Difference]: With dead ends: 11264 [2021-06-05 03:51:39,583 INFO L226 Difference]: Without dead ends: 10745 [2021-06-05 03:51:39,583 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:39,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10745 states. [2021-06-05 03:51:39,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10745 to 5105. [2021-06-05 03:51:39,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5105 states, 5104 states have (on average 4.741183385579937) internal successors, (24199), 5104 states have internal predecessors, (24199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:39,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 24199 transitions. [2021-06-05 03:51:39,804 INFO L78 Accepts]: Start accepts. Automaton has 5105 states and 24199 transitions. Word has length 29 [2021-06-05 03:51:39,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:39,804 INFO L482 AbstractCegarLoop]: Abstraction has 5105 states and 24199 transitions. [2021-06-05 03:51:39,804 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:39,804 INFO L276 IsEmpty]: Start isEmpty. Operand 5105 states and 24199 transitions. [2021-06-05 03:51:39,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:39,812 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:39,812 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:39,812 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1526 [2021-06-05 03:51:39,812 INFO L430 AbstractCegarLoop]: === Iteration 1528 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:39,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:39,813 INFO L82 PathProgramCache]: Analyzing trace with hash 1805273419, now seen corresponding path program 1523 times [2021-06-05 03:51:39,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:39,813 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344584430] [2021-06-05 03:51:39,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:39,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:39,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:39,915 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:39,915 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344584430] [2021-06-05 03:51:39,915 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344584430] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:39,915 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:39,915 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:39,915 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132462724] [2021-06-05 03:51:39,915 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:39,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:39,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:39,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:39,916 INFO L87 Difference]: Start difference. First operand 5105 states and 24199 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:40,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:40,027 INFO L93 Difference]: Finished difference Result 11360 states and 50866 transitions. [2021-06-05 03:51:40,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:40,027 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:40,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:40,053 INFO L225 Difference]: With dead ends: 11360 [2021-06-05 03:51:40,054 INFO L226 Difference]: Without dead ends: 10883 [2021-06-05 03:51:40,054 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:40,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10883 states. [2021-06-05 03:51:40,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10883 to 5181. [2021-06-05 03:51:40,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5181 states, 5180 states have (on average 4.727220077220077) internal successors, (24487), 5180 states have internal predecessors, (24487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:40,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5181 states to 5181 states and 24487 transitions. [2021-06-05 03:51:40,279 INFO L78 Accepts]: Start accepts. Automaton has 5181 states and 24487 transitions. Word has length 29 [2021-06-05 03:51:40,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:40,279 INFO L482 AbstractCegarLoop]: Abstraction has 5181 states and 24487 transitions. [2021-06-05 03:51:40,279 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:40,279 INFO L276 IsEmpty]: Start isEmpty. Operand 5181 states and 24487 transitions. [2021-06-05 03:51:40,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:40,287 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:40,287 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:40,287 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1527 [2021-06-05 03:51:40,287 INFO L430 AbstractCegarLoop]: === Iteration 1529 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:40,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:40,287 INFO L82 PathProgramCache]: Analyzing trace with hash 1064321321, now seen corresponding path program 1524 times [2021-06-05 03:51:40,287 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:40,287 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565281077] [2021-06-05 03:51:40,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:40,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:40,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:40,391 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:40,391 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565281077] [2021-06-05 03:51:40,391 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565281077] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:40,391 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:40,391 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:40,391 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896282929] [2021-06-05 03:51:40,391 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:40,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:40,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:40,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:40,392 INFO L87 Difference]: Start difference. First operand 5181 states and 24487 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:40,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:40,506 INFO L93 Difference]: Finished difference Result 11354 states and 50773 transitions. [2021-06-05 03:51:40,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:40,506 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:40,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:40,532 INFO L225 Difference]: With dead ends: 11354 [2021-06-05 03:51:40,532 INFO L226 Difference]: Without dead ends: 10783 [2021-06-05 03:51:40,532 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 130.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:40,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10783 states. [2021-06-05 03:51:40,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10783 to 5081. [2021-06-05 03:51:40,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5081 states, 5080 states have (on average 4.746259842519685) internal successors, (24111), 5080 states have internal predecessors, (24111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:40,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5081 states to 5081 states and 24111 transitions. [2021-06-05 03:51:40,746 INFO L78 Accepts]: Start accepts. Automaton has 5081 states and 24111 transitions. Word has length 29 [2021-06-05 03:51:40,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:40,746 INFO L482 AbstractCegarLoop]: Abstraction has 5081 states and 24111 transitions. [2021-06-05 03:51:40,746 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:40,746 INFO L276 IsEmpty]: Start isEmpty. Operand 5081 states and 24111 transitions. [2021-06-05 03:51:40,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:40,754 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:40,754 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:40,754 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1528 [2021-06-05 03:51:40,754 INFO L430 AbstractCegarLoop]: === Iteration 1530 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:40,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:40,754 INFO L82 PathProgramCache]: Analyzing trace with hash 968093899, now seen corresponding path program 1525 times [2021-06-05 03:51:40,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:40,754 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448598521] [2021-06-05 03:51:40,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:40,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:40,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:40,868 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:40,868 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448598521] [2021-06-05 03:51:40,868 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448598521] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:40,868 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:40,868 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:40,868 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411423306] [2021-06-05 03:51:40,868 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:40,868 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:40,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:40,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:40,868 INFO L87 Difference]: Start difference. First operand 5081 states and 24111 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:40,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:40,989 INFO L93 Difference]: Finished difference Result 11210 states and 50231 transitions. [2021-06-05 03:51:40,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:40,989 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:40,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:41,015 INFO L225 Difference]: With dead ends: 11210 [2021-06-05 03:51:41,016 INFO L226 Difference]: Without dead ends: 10795 [2021-06-05 03:51:41,016 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 139.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:41,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10795 states. [2021-06-05 03:51:41,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10795 to 5153. [2021-06-05 03:51:41,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 5152 states have (on average 4.738159937888199) internal successors, (24411), 5152 states have internal predecessors, (24411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:41,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 24411 transitions. [2021-06-05 03:51:41,243 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 24411 transitions. Word has length 29 [2021-06-05 03:51:41,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:41,243 INFO L482 AbstractCegarLoop]: Abstraction has 5153 states and 24411 transitions. [2021-06-05 03:51:41,243 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:41,243 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 24411 transitions. [2021-06-05 03:51:41,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:41,251 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:41,251 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:41,251 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1529 [2021-06-05 03:51:41,251 INFO L430 AbstractCegarLoop]: === Iteration 1531 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:41,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:41,252 INFO L82 PathProgramCache]: Analyzing trace with hash 1997659275, now seen corresponding path program 1526 times [2021-06-05 03:51:41,252 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:41,252 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449788896] [2021-06-05 03:51:41,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:41,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:41,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:41,368 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:41,368 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449788896] [2021-06-05 03:51:41,368 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449788896] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:41,368 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:41,368 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:41,368 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593930264] [2021-06-05 03:51:41,368 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:41,368 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:41,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:41,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:41,368 INFO L87 Difference]: Start difference. First operand 5153 states and 24411 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:41,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:41,477 INFO L93 Difference]: Finished difference Result 11270 states and 50447 transitions. [2021-06-05 03:51:41,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:41,477 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:41,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:41,504 INFO L225 Difference]: With dead ends: 11270 [2021-06-05 03:51:41,505 INFO L226 Difference]: Without dead ends: 10747 [2021-06-05 03:51:41,505 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 142.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:41,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10747 states. [2021-06-05 03:51:41,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10747 to 5105. [2021-06-05 03:51:41,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5105 states, 5104 states have (on average 4.743534482758621) internal successors, (24211), 5104 states have internal predecessors, (24211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:41,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 24211 transitions. [2021-06-05 03:51:41,732 INFO L78 Accepts]: Start accepts. Automaton has 5105 states and 24211 transitions. Word has length 29 [2021-06-05 03:51:41,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:41,732 INFO L482 AbstractCegarLoop]: Abstraction has 5105 states and 24211 transitions. [2021-06-05 03:51:41,732 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:41,732 INFO L276 IsEmpty]: Start isEmpty. Operand 5105 states and 24211 transitions. [2021-06-05 03:51:41,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:41,740 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:41,740 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:41,741 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1530 [2021-06-05 03:51:41,741 INFO L430 AbstractCegarLoop]: === Iteration 1532 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:41,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:41,741 INFO L82 PathProgramCache]: Analyzing trace with hash -1054967639, now seen corresponding path program 1527 times [2021-06-05 03:51:41,741 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:41,741 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883532040] [2021-06-05 03:51:41,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:41,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:41,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:41,844 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:41,844 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883532040] [2021-06-05 03:51:41,844 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883532040] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:41,844 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:41,844 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:41,844 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025481753] [2021-06-05 03:51:41,844 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:41,844 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:41,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:41,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:41,844 INFO L87 Difference]: Start difference. First operand 5105 states and 24211 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:41,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:41,955 INFO L93 Difference]: Finished difference Result 11206 states and 50195 transitions. [2021-06-05 03:51:41,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:41,955 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:41,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:41,982 INFO L225 Difference]: With dead ends: 11206 [2021-06-05 03:51:41,983 INFO L226 Difference]: Without dead ends: 10791 [2021-06-05 03:51:41,983 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.7ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:42,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10791 states. [2021-06-05 03:51:42,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10791 to 5153. [2021-06-05 03:51:42,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 5152 states have (on average 4.7335015527950315) internal successors, (24387), 5152 states have internal predecessors, (24387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:42,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 24387 transitions. [2021-06-05 03:51:42,205 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 24387 transitions. Word has length 29 [2021-06-05 03:51:42,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:42,205 INFO L482 AbstractCegarLoop]: Abstraction has 5153 states and 24387 transitions. [2021-06-05 03:51:42,206 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:42,206 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 24387 transitions. [2021-06-05 03:51:42,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:42,214 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:42,214 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:42,214 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1531 [2021-06-05 03:51:42,214 INFO L430 AbstractCegarLoop]: === Iteration 1533 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:42,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:42,214 INFO L82 PathProgramCache]: Analyzing trace with hash -590304117, now seen corresponding path program 1528 times [2021-06-05 03:51:42,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:42,214 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976064552] [2021-06-05 03:51:42,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:42,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:42,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:42,320 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:42,320 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976064552] [2021-06-05 03:51:42,320 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976064552] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:42,320 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:42,320 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:42,320 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485715981] [2021-06-05 03:51:42,320 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:42,320 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:42,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:42,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:42,321 INFO L87 Difference]: Start difference. First operand 5153 states and 24387 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:42,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:42,433 INFO L93 Difference]: Finished difference Result 11262 states and 50399 transitions. [2021-06-05 03:51:42,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:42,433 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:42,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:42,460 INFO L225 Difference]: With dead ends: 11262 [2021-06-05 03:51:42,460 INFO L226 Difference]: Without dead ends: 10743 [2021-06-05 03:51:42,461 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 130.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:42,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10743 states. [2021-06-05 03:51:42,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10743 to 5105. [2021-06-05 03:51:42,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5105 states, 5104 states have (on average 4.7388322884012535) internal successors, (24187), 5104 states have internal predecessors, (24187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:42,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 24187 transitions. [2021-06-05 03:51:42,685 INFO L78 Accepts]: Start accepts. Automaton has 5105 states and 24187 transitions. Word has length 29 [2021-06-05 03:51:42,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:42,685 INFO L482 AbstractCegarLoop]: Abstraction has 5105 states and 24187 transitions. [2021-06-05 03:51:42,685 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:42,685 INFO L276 IsEmpty]: Start isEmpty. Operand 5105 states and 24187 transitions. [2021-06-05 03:51:42,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:42,694 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:42,694 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:42,694 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1532 [2021-06-05 03:51:42,694 INFO L430 AbstractCegarLoop]: === Iteration 1534 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:42,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:42,694 INFO L82 PathProgramCache]: Analyzing trace with hash 307345483, now seen corresponding path program 1529 times [2021-06-05 03:51:42,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:42,694 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365881347] [2021-06-05 03:51:42,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:42,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:42,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:42,797 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:42,797 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365881347] [2021-06-05 03:51:42,797 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365881347] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:42,797 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:42,797 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:42,797 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657648258] [2021-06-05 03:51:42,797 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:42,797 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:42,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:42,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:42,798 INFO L87 Difference]: Start difference. First operand 5105 states and 24187 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:42,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:42,910 INFO L93 Difference]: Finished difference Result 11354 states and 50839 transitions. [2021-06-05 03:51:42,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:42,910 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:42,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:42,935 INFO L225 Difference]: With dead ends: 11354 [2021-06-05 03:51:42,935 INFO L226 Difference]: Without dead ends: 10879 [2021-06-05 03:51:42,935 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 129.2ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:43,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10879 states. [2021-06-05 03:51:43,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10879 to 5181. [2021-06-05 03:51:43,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5181 states, 5180 states have (on average 4.724903474903475) internal successors, (24475), 5180 states have internal predecessors, (24475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:43,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5181 states to 5181 states and 24475 transitions. [2021-06-05 03:51:43,156 INFO L78 Accepts]: Start accepts. Automaton has 5181 states and 24475 transitions. Word has length 29 [2021-06-05 03:51:43,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:43,156 INFO L482 AbstractCegarLoop]: Abstraction has 5181 states and 24475 transitions. [2021-06-05 03:51:43,156 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:43,156 INFO L276 IsEmpty]: Start isEmpty. Operand 5181 states and 24475 transitions. [2021-06-05 03:51:43,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:43,164 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:43,164 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:43,164 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1533 [2021-06-05 03:51:43,164 INFO L430 AbstractCegarLoop]: === Iteration 1535 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:43,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:43,164 INFO L82 PathProgramCache]: Analyzing trace with hash -1735991511, now seen corresponding path program 1530 times [2021-06-05 03:51:43,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:43,165 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739860145] [2021-06-05 03:51:43,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:43,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:43,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:43,267 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:43,267 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739860145] [2021-06-05 03:51:43,267 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739860145] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:43,267 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:43,267 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:43,267 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745811251] [2021-06-05 03:51:43,267 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:43,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:43,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:43,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:43,268 INFO L87 Difference]: Start difference. First operand 5181 states and 24475 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:43,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:43,386 INFO L93 Difference]: Finished difference Result 11350 states and 50751 transitions. [2021-06-05 03:51:43,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:43,386 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:43,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:43,410 INFO L225 Difference]: With dead ends: 11350 [2021-06-05 03:51:43,410 INFO L226 Difference]: Without dead ends: 10779 [2021-06-05 03:51:43,411 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 129.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:43,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10779 states. [2021-06-05 03:51:43,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10779 to 5081. [2021-06-05 03:51:43,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5081 states, 5080 states have (on average 4.743897637795276) internal successors, (24099), 5080 states have internal predecessors, (24099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:43,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5081 states to 5081 states and 24099 transitions. [2021-06-05 03:51:43,635 INFO L78 Accepts]: Start accepts. Automaton has 5081 states and 24099 transitions. Word has length 29 [2021-06-05 03:51:43,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:43,635 INFO L482 AbstractCegarLoop]: Abstraction has 5081 states and 24099 transitions. [2021-06-05 03:51:43,635 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:43,636 INFO L276 IsEmpty]: Start isEmpty. Operand 5081 states and 24099 transitions. [2021-06-05 03:51:43,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:43,644 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:43,644 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:43,644 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1534 [2021-06-05 03:51:43,644 INFO L430 AbstractCegarLoop]: === Iteration 1536 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:43,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:43,644 INFO L82 PathProgramCache]: Analyzing trace with hash 1159679981, now seen corresponding path program 1531 times [2021-06-05 03:51:43,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:43,645 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500492359] [2021-06-05 03:51:43,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:43,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:43,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:43,750 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:43,750 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500492359] [2021-06-05 03:51:43,750 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500492359] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:43,750 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:43,750 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:43,750 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227199414] [2021-06-05 03:51:43,750 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:43,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:43,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:43,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:43,751 INFO L87 Difference]: Start difference. First operand 5081 states and 24099 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:43,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:43,872 INFO L93 Difference]: Finished difference Result 11498 states and 51537 transitions. [2021-06-05 03:51:43,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:43,872 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:43,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:43,899 INFO L225 Difference]: With dead ends: 11498 [2021-06-05 03:51:43,899 INFO L226 Difference]: Without dead ends: 11021 [2021-06-05 03:51:43,899 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 131.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:44,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11021 states. [2021-06-05 03:51:44,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11021 to 5197. [2021-06-05 03:51:44,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5197 states, 5196 states have (on average 4.73306389530408) internal successors, (24593), 5196 states have internal predecessors, (24593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:44,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5197 states to 5197 states and 24593 transitions. [2021-06-05 03:51:44,122 INFO L78 Accepts]: Start accepts. Automaton has 5197 states and 24593 transitions. Word has length 29 [2021-06-05 03:51:44,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:44,122 INFO L482 AbstractCegarLoop]: Abstraction has 5197 states and 24593 transitions. [2021-06-05 03:51:44,122 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:44,122 INFO L276 IsEmpty]: Start isEmpty. Operand 5197 states and 24593 transitions. [2021-06-05 03:51:44,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:44,130 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:44,130 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:44,131 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1535 [2021-06-05 03:51:44,131 INFO L430 AbstractCegarLoop]: === Iteration 1537 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:44,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:44,131 INFO L82 PathProgramCache]: Analyzing trace with hash -232464565, now seen corresponding path program 1532 times [2021-06-05 03:51:44,131 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:44,131 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996701870] [2021-06-05 03:51:44,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:44,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:44,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:44,234 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:44,234 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996701870] [2021-06-05 03:51:44,234 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996701870] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:44,234 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:44,234 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:44,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646018387] [2021-06-05 03:51:44,235 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:44,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:44,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:44,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:44,235 INFO L87 Difference]: Start difference. First operand 5197 states and 24593 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:44,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:44,342 INFO L93 Difference]: Finished difference Result 11496 states and 51454 transitions. [2021-06-05 03:51:44,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:44,342 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:44,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:44,368 INFO L225 Difference]: With dead ends: 11496 [2021-06-05 03:51:44,368 INFO L226 Difference]: Without dead ends: 10943 [2021-06-05 03:51:44,368 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 130.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:44,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10943 states. [2021-06-05 03:51:44,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10943 to 5119. [2021-06-05 03:51:44,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5119 states, 5118 states have (on average 4.740523642047675) internal successors, (24262), 5118 states have internal predecessors, (24262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:44,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5119 states to 5119 states and 24262 transitions. [2021-06-05 03:51:44,582 INFO L78 Accepts]: Start accepts. Automaton has 5119 states and 24262 transitions. Word has length 29 [2021-06-05 03:51:44,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:44,582 INFO L482 AbstractCegarLoop]: Abstraction has 5119 states and 24262 transitions. [2021-06-05 03:51:44,582 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:44,582 INFO L276 IsEmpty]: Start isEmpty. Operand 5119 states and 24262 transitions. [2021-06-05 03:51:44,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:44,590 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:44,590 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:44,590 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1536 [2021-06-05 03:51:44,590 INFO L430 AbstractCegarLoop]: === Iteration 1538 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:44,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:44,590 INFO L82 PathProgramCache]: Analyzing trace with hash 312883019, now seen corresponding path program 1533 times [2021-06-05 03:51:44,590 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:44,590 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882487210] [2021-06-05 03:51:44,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:44,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:44,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:44,693 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:44,693 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882487210] [2021-06-05 03:51:44,693 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882487210] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:44,693 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:44,693 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:44,694 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517582488] [2021-06-05 03:51:44,694 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:44,694 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:44,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:44,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:44,694 INFO L87 Difference]: Start difference. First operand 5119 states and 24262 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:44,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:44,802 INFO L93 Difference]: Finished difference Result 11492 states and 51480 transitions. [2021-06-05 03:51:44,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:44,803 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:44,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:44,828 INFO L225 Difference]: With dead ends: 11492 [2021-06-05 03:51:44,829 INFO L226 Difference]: Without dead ends: 11015 [2021-06-05 03:51:44,829 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 130.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:44,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11015 states. [2021-06-05 03:51:45,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11015 to 5195. [2021-06-05 03:51:45,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5195 states, 5194 states have (on average 4.7266076241817485) internal successors, (24550), 5194 states have internal predecessors, (24550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:45,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5195 states to 5195 states and 24550 transitions. [2021-06-05 03:51:45,088 INFO L78 Accepts]: Start accepts. Automaton has 5195 states and 24550 transitions. Word has length 29 [2021-06-05 03:51:45,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:45,088 INFO L482 AbstractCegarLoop]: Abstraction has 5195 states and 24550 transitions. [2021-06-05 03:51:45,088 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:45,088 INFO L276 IsEmpty]: Start isEmpty. Operand 5195 states and 24550 transitions. [2021-06-05 03:51:45,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:45,096 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:45,096 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:45,096 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1537 [2021-06-05 03:51:45,096 INFO L430 AbstractCegarLoop]: === Iteration 1539 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:45,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:45,096 INFO L82 PathProgramCache]: Analyzing trace with hash -2138425397, now seen corresponding path program 1534 times [2021-06-05 03:51:45,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:45,096 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005789463] [2021-06-05 03:51:45,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:45,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:45,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:45,197 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:45,197 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005789463] [2021-06-05 03:51:45,197 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005789463] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:45,197 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:45,197 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:45,197 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483903114] [2021-06-05 03:51:45,197 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:45,197 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:45,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:45,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:45,197 INFO L87 Difference]: Start difference. First operand 5195 states and 24550 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:45,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:45,314 INFO L93 Difference]: Finished difference Result 11486 states and 51387 transitions. [2021-06-05 03:51:45,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:45,314 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:45,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:45,340 INFO L225 Difference]: With dead ends: 11486 [2021-06-05 03:51:45,340 INFO L226 Difference]: Without dead ends: 10939 [2021-06-05 03:51:45,340 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 126.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:45,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10939 states. [2021-06-05 03:51:45,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10939 to 5119. [2021-06-05 03:51:45,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5119 states, 5118 states have (on average 4.733098866744823) internal successors, (24224), 5118 states have internal predecessors, (24224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:45,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5119 states to 5119 states and 24224 transitions. [2021-06-05 03:51:45,561 INFO L78 Accepts]: Start accepts. Automaton has 5119 states and 24224 transitions. Word has length 29 [2021-06-05 03:51:45,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:45,562 INFO L482 AbstractCegarLoop]: Abstraction has 5119 states and 24224 transitions. [2021-06-05 03:51:45,562 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:45,562 INFO L276 IsEmpty]: Start isEmpty. Operand 5119 states and 24224 transitions. [2021-06-05 03:51:45,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:45,569 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:45,569 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:45,569 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1538 [2021-06-05 03:51:45,569 INFO L430 AbstractCegarLoop]: === Iteration 1540 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:45,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:45,569 INFO L82 PathProgramCache]: Analyzing trace with hash 677140393, now seen corresponding path program 1535 times [2021-06-05 03:51:45,569 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:45,570 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214863138] [2021-06-05 03:51:45,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:45,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:45,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:45,671 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:45,671 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214863138] [2021-06-05 03:51:45,671 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214863138] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:45,671 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:45,672 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:45,672 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490579452] [2021-06-05 03:51:45,672 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:45,672 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:45,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:45,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:45,672 INFO L87 Difference]: Start difference. First operand 5119 states and 24224 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:45,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:45,786 INFO L93 Difference]: Finished difference Result 11488 states and 51432 transitions. [2021-06-05 03:51:45,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:45,787 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:45,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:45,813 INFO L225 Difference]: With dead ends: 11488 [2021-06-05 03:51:45,813 INFO L226 Difference]: Without dead ends: 11013 [2021-06-05 03:51:45,813 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.3ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:45,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11013 states. [2021-06-05 03:51:46,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11013 to 5195. [2021-06-05 03:51:46,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5195 states, 5194 states have (on average 4.719291490180978) internal successors, (24512), 5194 states have internal predecessors, (24512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:46,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5195 states to 5195 states and 24512 transitions. [2021-06-05 03:51:46,027 INFO L78 Accepts]: Start accepts. Automaton has 5195 states and 24512 transitions. Word has length 29 [2021-06-05 03:51:46,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:46,027 INFO L482 AbstractCegarLoop]: Abstraction has 5195 states and 24512 transitions. [2021-06-05 03:51:46,027 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:46,027 INFO L276 IsEmpty]: Start isEmpty. Operand 5195 states and 24512 transitions. [2021-06-05 03:51:46,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:46,034 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:46,034 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:46,034 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1539 [2021-06-05 03:51:46,035 INFO L430 AbstractCegarLoop]: === Iteration 1541 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:46,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:46,035 INFO L82 PathProgramCache]: Analyzing trace with hash 1758203019, now seen corresponding path program 1536 times [2021-06-05 03:51:46,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:46,035 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368790552] [2021-06-05 03:51:46,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:46,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:46,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:46,138 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:46,138 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368790552] [2021-06-05 03:51:46,138 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368790552] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:46,138 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:46,138 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:46,138 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582698928] [2021-06-05 03:51:46,138 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:46,138 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:46,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:46,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:46,138 INFO L87 Difference]: Start difference. First operand 5195 states and 24512 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:46,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:46,253 INFO L93 Difference]: Finished difference Result 11484 states and 51344 transitions. [2021-06-05 03:51:46,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:46,254 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:46,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:46,281 INFO L225 Difference]: With dead ends: 11484 [2021-06-05 03:51:46,281 INFO L226 Difference]: Without dead ends: 10887 [2021-06-05 03:51:46,281 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:46,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10887 states. [2021-06-05 03:51:46,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10887 to 5069. [2021-06-05 03:51:46,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5069 states, 5068 states have (on average 4.747632202052092) internal successors, (24061), 5068 states have internal predecessors, (24061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:46,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5069 states to 5069 states and 24061 transitions. [2021-06-05 03:51:46,501 INFO L78 Accepts]: Start accepts. Automaton has 5069 states and 24061 transitions. Word has length 29 [2021-06-05 03:51:46,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:46,502 INFO L482 AbstractCegarLoop]: Abstraction has 5069 states and 24061 transitions. [2021-06-05 03:51:46,502 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:46,502 INFO L276 IsEmpty]: Start isEmpty. Operand 5069 states and 24061 transitions. [2021-06-05 03:51:46,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:46,510 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:46,510 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:46,510 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1540 [2021-06-05 03:51:46,510 INFO L430 AbstractCegarLoop]: === Iteration 1542 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:46,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:46,510 INFO L82 PathProgramCache]: Analyzing trace with hash -563068947, now seen corresponding path program 1537 times [2021-06-05 03:51:46,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:46,510 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555370211] [2021-06-05 03:51:46,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:46,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:46,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:46,617 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:46,617 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555370211] [2021-06-05 03:51:46,617 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555370211] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:46,617 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:46,617 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:46,617 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014711868] [2021-06-05 03:51:46,617 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:46,617 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:46,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:46,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:46,618 INFO L87 Difference]: Start difference. First operand 5069 states and 24061 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:46,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:46,717 INFO L93 Difference]: Finished difference Result 12438 states and 55564 transitions. [2021-06-05 03:51:46,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:46,717 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:46,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:46,747 INFO L225 Difference]: With dead ends: 12438 [2021-06-05 03:51:46,747 INFO L226 Difference]: Without dead ends: 11896 [2021-06-05 03:51:46,747 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 114.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:46,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11896 states. [2021-06-05 03:51:46,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11896 to 5350. [2021-06-05 03:51:46,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5350 states, 5349 states have (on average 4.713965227145261) internal successors, (25215), 5349 states have internal predecessors, (25215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:46,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5350 states to 5350 states and 25215 transitions. [2021-06-05 03:51:46,971 INFO L78 Accepts]: Start accepts. Automaton has 5350 states and 25215 transitions. Word has length 29 [2021-06-05 03:51:46,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:46,971 INFO L482 AbstractCegarLoop]: Abstraction has 5350 states and 25215 transitions. [2021-06-05 03:51:46,971 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:46,971 INFO L276 IsEmpty]: Start isEmpty. Operand 5350 states and 25215 transitions. [2021-06-05 03:51:46,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:46,979 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:46,979 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:46,979 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1541 [2021-06-05 03:51:46,979 INFO L430 AbstractCegarLoop]: === Iteration 1543 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:46,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:46,979 INFO L82 PathProgramCache]: Analyzing trace with hash 1688561355, now seen corresponding path program 1538 times [2021-06-05 03:51:46,979 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:46,979 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935695620] [2021-06-05 03:51:46,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:46,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:47,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:47,083 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:47,083 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935695620] [2021-06-05 03:51:47,083 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935695620] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:47,083 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:47,083 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:47,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139832115] [2021-06-05 03:51:47,083 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:47,083 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:47,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:47,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:47,083 INFO L87 Difference]: Start difference. First operand 5350 states and 25215 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:47,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:47,203 INFO L93 Difference]: Finished difference Result 12373 states and 55195 transitions. [2021-06-05 03:51:47,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:47,203 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:47,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:47,231 INFO L225 Difference]: With dead ends: 12373 [2021-06-05 03:51:47,231 INFO L226 Difference]: Without dead ends: 11753 [2021-06-05 03:51:47,232 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 128.5ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:47,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11753 states. [2021-06-05 03:51:47,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11753 to 5207. [2021-06-05 03:51:47,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5207 states, 5206 states have (on average 4.730119093353823) internal successors, (24625), 5206 states have internal predecessors, (24625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:47,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5207 states to 5207 states and 24625 transitions. [2021-06-05 03:51:47,452 INFO L78 Accepts]: Start accepts. Automaton has 5207 states and 24625 transitions. Word has length 29 [2021-06-05 03:51:47,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:47,452 INFO L482 AbstractCegarLoop]: Abstraction has 5207 states and 24625 transitions. [2021-06-05 03:51:47,452 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:47,452 INFO L276 IsEmpty]: Start isEmpty. Operand 5207 states and 24625 transitions. [2021-06-05 03:51:47,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:47,460 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:47,460 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:47,460 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1542 [2021-06-05 03:51:47,460 INFO L430 AbstractCegarLoop]: === Iteration 1544 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:47,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:47,460 INFO L82 PathProgramCache]: Analyzing trace with hash 1615818699, now seen corresponding path program 1539 times [2021-06-05 03:51:47,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:47,460 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108975674] [2021-06-05 03:51:47,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:47,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:47,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:47,565 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:47,565 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108975674] [2021-06-05 03:51:47,565 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108975674] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:47,566 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:47,566 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:47,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96128755] [2021-06-05 03:51:47,566 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:47,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:47,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:47,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:47,566 INFO L87 Difference]: Start difference. First operand 5207 states and 24625 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:47,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:47,670 INFO L93 Difference]: Finished difference Result 12403 states and 55373 transitions. [2021-06-05 03:51:47,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:47,670 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:47,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:47,699 INFO L225 Difference]: With dead ends: 12403 [2021-06-05 03:51:47,699 INFO L226 Difference]: Without dead ends: 11861 [2021-06-05 03:51:47,699 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 113.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:47,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11861 states. [2021-06-05 03:51:47,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11861 to 5317. [2021-06-05 03:51:47,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5317 states, 5316 states have (on average 4.708427389014297) internal successors, (25030), 5316 states have internal predecessors, (25030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:47,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5317 states to 5317 states and 25030 transitions. [2021-06-05 03:51:47,922 INFO L78 Accepts]: Start accepts. Automaton has 5317 states and 25030 transitions. Word has length 29 [2021-06-05 03:51:47,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:47,922 INFO L482 AbstractCegarLoop]: Abstraction has 5317 states and 25030 transitions. [2021-06-05 03:51:47,922 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:47,922 INFO L276 IsEmpty]: Start isEmpty. Operand 5317 states and 25030 transitions. [2021-06-05 03:51:47,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:47,930 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:47,930 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:47,930 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1543 [2021-06-05 03:51:47,930 INFO L430 AbstractCegarLoop]: === Iteration 1545 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:47,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:47,930 INFO L82 PathProgramCache]: Analyzing trace with hash -2123360309, now seen corresponding path program 1540 times [2021-06-05 03:51:47,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:47,930 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857551134] [2021-06-05 03:51:47,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:47,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:48,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:48,034 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:48,034 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857551134] [2021-06-05 03:51:48,034 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857551134] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:48,034 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:48,034 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:48,034 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36108672] [2021-06-05 03:51:48,034 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:48,034 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:48,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:48,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:48,035 INFO L87 Difference]: Start difference. First operand 5317 states and 25030 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:48,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:48,159 INFO L93 Difference]: Finished difference Result 12336 states and 55000 transitions. [2021-06-05 03:51:48,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:48,160 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:48,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:48,188 INFO L225 Difference]: With dead ends: 12336 [2021-06-05 03:51:48,189 INFO L226 Difference]: Without dead ends: 11751 [2021-06-05 03:51:48,189 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 129.6ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:48,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11751 states. [2021-06-05 03:51:48,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11751 to 5207. [2021-06-05 03:51:48,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5207 states, 5206 states have (on average 4.719554360353438) internal successors, (24570), 5206 states have internal predecessors, (24570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:48,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5207 states to 5207 states and 24570 transitions. [2021-06-05 03:51:48,428 INFO L78 Accepts]: Start accepts. Automaton has 5207 states and 24570 transitions. Word has length 29 [2021-06-05 03:51:48,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:48,428 INFO L482 AbstractCegarLoop]: Abstraction has 5207 states and 24570 transitions. [2021-06-05 03:51:48,428 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:48,428 INFO L276 IsEmpty]: Start isEmpty. Operand 5207 states and 24570 transitions. [2021-06-05 03:51:48,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:48,438 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:48,438 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:48,438 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1544 [2021-06-05 03:51:48,438 INFO L430 AbstractCegarLoop]: === Iteration 1546 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:48,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:48,439 INFO L82 PathProgramCache]: Analyzing trace with hash -1696800983, now seen corresponding path program 1541 times [2021-06-05 03:51:48,439 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:48,439 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662732359] [2021-06-05 03:51:48,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:48,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:48,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:48,550 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:48,550 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662732359] [2021-06-05 03:51:48,550 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662732359] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:48,550 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:48,550 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:48,550 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055720915] [2021-06-05 03:51:48,550 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:48,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:48,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:48,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:48,550 INFO L87 Difference]: Start difference. First operand 5207 states and 24570 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:48,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:48,673 INFO L93 Difference]: Finished difference Result 12241 states and 54658 transitions. [2021-06-05 03:51:48,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:48,674 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:48,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:48,701 INFO L225 Difference]: With dead ends: 12241 [2021-06-05 03:51:48,701 INFO L226 Difference]: Without dead ends: 11764 [2021-06-05 03:51:48,701 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 133.1ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:48,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11764 states. [2021-06-05 03:51:48,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11764 to 5285. [2021-06-05 03:51:48,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5285 states, 5284 states have (on average 4.705336866010598) internal successors, (24863), 5284 states have internal predecessors, (24863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:48,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5285 states to 5285 states and 24863 transitions. [2021-06-05 03:51:48,923 INFO L78 Accepts]: Start accepts. Automaton has 5285 states and 24863 transitions. Word has length 29 [2021-06-05 03:51:48,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:48,923 INFO L482 AbstractCegarLoop]: Abstraction has 5285 states and 24863 transitions. [2021-06-05 03:51:48,923 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:48,923 INFO L276 IsEmpty]: Start isEmpty. Operand 5285 states and 24863 transitions. [2021-06-05 03:51:48,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:48,931 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:48,931 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:48,931 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1545 [2021-06-05 03:51:48,931 INFO L430 AbstractCegarLoop]: === Iteration 1547 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:48,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:48,931 INFO L82 PathProgramCache]: Analyzing trace with hash -1903608949, now seen corresponding path program 1542 times [2021-06-05 03:51:48,931 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:48,931 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914232381] [2021-06-05 03:51:48,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:48,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:49,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:49,035 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:49,035 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914232381] [2021-06-05 03:51:49,035 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914232381] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:49,035 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:49,036 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:49,036 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508007539] [2021-06-05 03:51:49,036 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:49,036 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:49,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:49,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:49,036 INFO L87 Difference]: Start difference. First operand 5285 states and 24863 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:49,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:49,155 INFO L93 Difference]: Finished difference Result 12239 states and 54575 transitions. [2021-06-05 03:51:49,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:49,156 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:49,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:49,183 INFO L225 Difference]: With dead ends: 12239 [2021-06-05 03:51:49,184 INFO L226 Difference]: Without dead ends: 11599 [2021-06-05 03:51:49,184 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 130.0ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:49,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11599 states. [2021-06-05 03:51:49,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11599 to 5120. [2021-06-05 03:51:49,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5120 states, 5119 states have (on average 4.738425473725337) internal successors, (24256), 5119 states have internal predecessors, (24256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:49,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5120 states to 5120 states and 24256 transitions. [2021-06-05 03:51:49,408 INFO L78 Accepts]: Start accepts. Automaton has 5120 states and 24256 transitions. Word has length 29 [2021-06-05 03:51:49,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:49,408 INFO L482 AbstractCegarLoop]: Abstraction has 5120 states and 24256 transitions. [2021-06-05 03:51:49,408 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:49,408 INFO L276 IsEmpty]: Start isEmpty. Operand 5120 states and 24256 transitions. [2021-06-05 03:51:49,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:49,416 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:49,416 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:49,416 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1546 [2021-06-05 03:51:49,416 INFO L430 AbstractCegarLoop]: === Iteration 1548 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:49,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:49,416 INFO L82 PathProgramCache]: Analyzing trace with hash 1708836811, now seen corresponding path program 1543 times [2021-06-05 03:51:49,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:49,416 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852617921] [2021-06-05 03:51:49,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:49,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:49,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:49,520 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:49,520 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852617921] [2021-06-05 03:51:49,521 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852617921] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:49,521 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:49,521 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:49,521 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830227255] [2021-06-05 03:51:49,521 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:49,521 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:49,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:49,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:49,521 INFO L87 Difference]: Start difference. First operand 5120 states and 24256 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:49,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 03:51:49,634 INFO L93 Difference]: Finished difference Result 12413 states and 55443 transitions. [2021-06-05 03:51:49,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 03:51:49,634 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-06-05 03:51:49,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 03:51:49,663 INFO L225 Difference]: With dead ends: 12413 [2021-06-05 03:51:49,663 INFO L226 Difference]: Without dead ends: 11871 [2021-06-05 03:51:49,663 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 113.4ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-06-05 03:51:49,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11871 states. [2021-06-05 03:51:49,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11871 to 5333. [2021-06-05 03:51:49,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5333 states, 5332 states have (on average 4.711177794448612) internal successors, (25120), 5332 states have internal predecessors, (25120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:49,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5333 states to 5333 states and 25120 transitions. [2021-06-05 03:51:49,889 INFO L78 Accepts]: Start accepts. Automaton has 5333 states and 25120 transitions. Word has length 29 [2021-06-05 03:51:49,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 03:51:49,889 INFO L482 AbstractCegarLoop]: Abstraction has 5333 states and 25120 transitions. [2021-06-05 03:51:49,889 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 03:51:49,890 INFO L276 IsEmpty]: Start isEmpty. Operand 5333 states and 25120 transitions. [2021-06-05 03:51:49,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-06-05 03:51:49,897 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 03:51:49,898 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 03:51:49,898 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1547 [2021-06-05 03:51:49,898 INFO L430 AbstractCegarLoop]: === Iteration 1549 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 03:51:49,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 03:51:49,898 INFO L82 PathProgramCache]: Analyzing trace with hash -334500183, now seen corresponding path program 1544 times [2021-06-05 03:51:49,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 03:51:49,898 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144883388] [2021-06-05 03:51:49,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 03:51:49,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 03:51:50,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 03:51:50,001 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 03:51:50,001 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144883388] [2021-06-05 03:51:50,001 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144883388] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 03:51:50,001 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 03:51:50,001 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 03:51:50,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877000915] [2021-06-05 03:51:50,001 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 03:51:50,001 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 03:51:50,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 03:51:50,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-06-05 03:51:50,002 INFO L87 Difference]: Start difference. First operand 5333 states and 25120 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2021-06-05 03:51:50,056 WARN L222 SmtUtils]: Removed 1 from assertion stack [2021-06-05 03:51:50,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-05 03:51:50,057 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1548 [2021-06-05 03:51:50,057 WARN L547 AbstractCegarLoop]: Verification canceled [2021-06-05 03:51:50,058 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 03:51:50,059 WARN L196 ceAbstractionStarter]: Timeout [2021-06-05 03:51:50,059 INFO L202 PluginConnector]: Adding new model example_7.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 03:51:50 BasicIcfg [2021-06-05 03:51:50,060 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 03:51:50,060 INFO L168 Benchmark]: Toolchain (without parser) took 791707.77 ms. Allocated memory was 331.4 MB in the beginning and 8.1 GB in the end (delta: 7.7 GB). Free memory was 310.9 MB in the beginning and 5.1 GB in the end (delta: -4.8 GB). Peak memory consumption was 2.9 GB. Max. memory is 16.0 GB. [2021-06-05 03:51:50,060 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.15 ms. Allocated memory is still 331.4 MB. Free memory was 312.0 MB in the beginning and 311.9 MB in the end (delta: 71.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 03:51:50,060 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.56 ms. Allocated memory is still 331.4 MB. Free memory was 310.8 MB in the beginning and 309.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 03:51:50,060 INFO L168 Benchmark]: Boogie Preprocessor took 10.27 ms. Allocated memory is still 331.4 MB. Free memory was 309.4 MB in the beginning and 308.5 MB in the end (delta: 920.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 03:51:50,061 INFO L168 Benchmark]: RCFGBuilder took 211.57 ms. Allocated memory is still 331.4 MB. Free memory was 308.4 MB in the beginning and 297.3 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. [2021-06-05 03:51:50,061 INFO L168 Benchmark]: TraceAbstraction took 791459.25 ms. Allocated memory was 331.4 MB in the beginning and 8.1 GB in the end (delta: 7.7 GB). Free memory was 296.9 MB in the beginning and 5.1 GB in the end (delta: -4.8 GB). Peak memory consumption was 2.9 GB. Max. memory is 16.0 GB. [2021-06-05 03:51:50,061 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.15 ms. Allocated memory is still 331.4 MB. Free memory was 312.0 MB in the beginning and 311.9 MB in the end (delta: 71.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 22.56 ms. Allocated memory is still 331.4 MB. Free memory was 310.8 MB in the beginning and 309.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 10.27 ms. Allocated memory is still 331.4 MB. Free memory was 309.4 MB in the beginning and 308.5 MB in the end (delta: 920.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 211.57 ms. Allocated memory is still 331.4 MB. Free memory was 308.4 MB in the beginning and 297.3 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 791459.25 ms. Allocated memory was 331.4 MB in the beginning and 8.1 GB in the end (delta: 7.7 GB). Free memory was 296.9 MB in the beginning and 5.1 GB in the end (delta: -4.8 GB). Peak memory consumption was 2.9 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 10]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (5333states) and FLOYD_HOARE automaton (currently 8 states, 9 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 30 for 22ms.. - TimeoutResultAtElement [Line: 17]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (5333states) and FLOYD_HOARE automaton (currently 8 states, 9 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 30 for 22ms.. - TimeoutResultAtElement [Line: 18]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (5333states) and FLOYD_HOARE automaton (currently 8 states, 9 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 30 for 22ms.. - TimeoutResultAtElement [Line: 15]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (5333states) and FLOYD_HOARE automaton (currently 8 states, 9 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 30 for 22ms.. - TimeoutResultAtElement [Line: 16]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (5333states) and FLOYD_HOARE automaton (currently 8 states, 9 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 30 for 22ms.. - TimeoutResultAtElement [Line: 14]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (5333states) and FLOYD_HOARE automaton (currently 8 states, 9 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 30 for 22ms.. - TimeoutResultAtElement [Line: 27]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while BasicCegarLoop was constructing difference of abstraction (5333states) and FLOYD_HOARE automaton (currently 8 states, 9 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 30 for 22ms.. - TimeoutResultAtElement [Line: 13]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (5333states) and FLOYD_HOARE automaton (currently 8 states, 9 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 30 for 22ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 15 procedures, 67 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 791230.6ms, OverallIterations: 1549, TraceHistogramMax: 1, EmptinessCheckTime: 14082.5ms, AutomataDifference: 221996.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1657.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 202701 SDtfs, 251724 SDslu, 491716 SDs, 0 SdLazy, 80801 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 45883.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13911 GetRequests, 1554 SyntacticMatches, 0 SemanticMatches, 12356 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7720 ImplicationChecksByTransitivity, 220797.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=17480occurred in iteration=0, InterpolantAutomatonStates: 13902, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 357651.5ms AutomataMinimizationTime, 1548 MinimizatonAttempts, 8584258 StatesRemovedByMinimization, 1543 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 293.5ms SsaConstructionTime, 847.8ms SatisfiabilityAnalysisTime, 191024.3ms InterpolantComputationTime, 44921 NumberOfCodeBlocks, 44921 NumberOfCodeBlocksAsserted, 1549 NumberOfCheckSat, 43372 ConstructedInterpolants, 0 QuantifiedInterpolants, 1230525 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1549 InterpolantComputations, 1549 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown